验证Catalyst 9000交换机上的MPLS

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已更新: 2022 年 3 月 8 日

文档 ID:217704

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简介

本文档介绍如何在Catalyst 9000系列交换机上配置和验证多协议标签交换(MPLS)第3层虚拟专用网络(VPN)。

先决条件

要求

Cisco 建议您了解以下主题：

IP转发
边界网关协议 (BGP)
MPLS

使用的组件

本文档中的信息基于以下软件和硬件版本：

C9500在Cisco IOS® XE 16.12.4上
C9300在Cisco IOS® XE 16.12.4上
Cisco IOS® XE 16.9.6上的C3850

本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您的网络处于活动状态，请确保您了解所有命令的潜在影响。

背景信息

MPLS第3层VPN(L3VPN)使用使用BGP分发VPN相关信息的对等模型。MPLS VPN由一组通过MPLS提供商核心网络互连的站点组成。在每个客户站点，一个或多个客户边缘(CE)设备连接到一个或多个提供边缘(PE)设备。

在常规第3层路由中，当数据包通过网络时，每台交换机都会从第3层报头中提取与转发数据包相关的所有信息。然后，此信息将用作路由表查找的索引，以确定数据包的下一跳。

在最常见的情况下，报头中唯一相关的字段是目标地址字段，但在某些情况下，其他报头字段也可能相关。因此，报头分析必须在数据包通过的每台交换机上独立完成。此外，每台交换机还必须执行复杂的表查找。

在标签交换中，第3层报头的分析只完成一次。然后，第3层报头将映射到一个称为“alabel”的固定长度的非结构化值。

许多不同的报头可以映射到同一标签，只要这些报头总是导致选择相同的下一跳。实际上，标签表示转发等效类(FEC)，即一组数据包，无论它们有何不同，都可以通过转发功能不区分。

标签的初始选择不必完全基于第3层数据包报头的内容；例如，在后续跳处转发数据包的决定也可能基于其他因素。

分配标签后，第3层数据包的前面会添加一个短标签报头。此报头作为数据包的一部分在网络中传输。在通过网络中每个MPLS交换机的后续跳数中，标签交换并通过MPLS转发表查找数据包报头中携带的标签来做出决策。因此，在通过网络的数据包传输过程中不需要重新评估数据包报头。由于标签的长度是固定的，而且是非结构化的，因此MPLS转发表查找过程既简单又快速。

网络中的每个标签交换路由器(LSR)会独立地做出本地决定，决定使用哪个标签值来表示转发等价类。此关联称为标签绑定。每个LSR都会通知其邻居其已进行的标签绑定。以下协议有助于邻居交换机对标签绑定的感知：

标签分发协议(LDP) — 使MPLS网络中的对等LSR能够交换标签信息，以支持MPLS网络中逐跳转发
边界网关协议(BGP) — 用于支持MPLS虚拟专用网络(VPN)

当从LSR A向LSR B发送带标签的数据包时，IP数据包所携带的标签值是LSR B分配的用于表示数据包的转发等价类的标签值。因此，标签值会随着IP数据包通过网络而改变。

如何使用本指南

本指南分为两个场景，文档末尾提供了硬件扩展验证部分：

MPLS核心内的单跳邻接
MPLS核心内的等价多路径(ECMP)邻接
如何检查TCAM的使用情况以解决规模问题

每个场景都包括验证每个MPLS设备的前缀和标签。

术语

MPLS	多协议标签交换	一种高性能数据包转发技术，将数据链路层（第2层）交换的性能和流量管理功能与网络层（第3层）路由的可扩展性、灵活性和性能相集成。
PE	提供商边缘（交换机/路由器）	提供商网络的边缘设备，从客户CE接收IP前缀，并将其传送到MPLS云。
CE	客户边缘（交换机/路由器）	连接到服务提供商IP/MPLS网络的提供商边缘路由器的客户驻地设备。
LDP	标签发现协议	LDP是一种协议，可自动生成和交换路由器之间的标签。每台路由器在本地为其前缀生成标签，然后将标签值通告给其邻居。
LSPA	标签交换机路径阵列	到达特定MPLS目标的一组标签。在典型的L3VPN中 — 您可以有IGP + VPN标签。如果有TE隧道，则您有TE标签+ IGP + VPN。 Catalyst 9000最多可支持6个标签，这组标签称为LSPA。
标签堆栈ID	标签堆栈ID	A 标识标签堆栈的唯一索引(允许LSPA共享)。
标签	标签	用于查找的MPLS标签。多个标签组成标签堆栈。
前缀ID	前缀标识符	Catalyst 9000为每个前缀创建全局资源（在分配每个前缀标签的情况下，前缀ID的数量与路由的数量一样多）。
EM	精确匹配	哈希内存中匹配1:1的条目（主机路由，直连主机）。
LPM	最长前缀匹配	任何/31或更短的路由（/32路由是EM类型）。
TCAM	三态内容可寻址存储器	一种内存，它存储和查询具有三种不同输入的条目：0、1和X。在同一条目可能有多个匹配时，必须使用此类内存，并且每个条目的哈希值不唯一。此表包含掩码或“X”值，使其能够知道它是否匹配该条目或与该条目不匹配。
CAM	内容可寻址存储器	硬件内存（散列/TCAM）的一般术语。
RIB	路由信息库	在“show ip route”中看到的路由表
FIB	转发信息库	简化表，其前缀由RIB和ARP表添加，并带有指向ADJ表的指针
直接连接	直接连接的路由	本地连接的主机前缀（ARP邻接）
间接连接	间接连接路由	通过远程下一跳到达的路由
ADJ	邻接（表）	存储用于数据包重写的下一跳信息
EM	精确匹配	已连接主机，间接/32主机前缀
TCAM	三态内容可寻址存储器	间接前缀/31或更短
美联储	转发引擎驱动程序	ASIC（硬件）层
FMAN-FP	转发管理器 — 转发平面	FMAN-FP管理添加、删除或修改FED信息的软件对象
SI	站索引	站索引 = 数据包重写信息（RI =重写索引）和出站接口信息（DI =目标索引）
RI	重写索引	第3层转发到下一跳邻接的MAC地址重写信息
DI	目标索引	指向出站接口的索引

配置和验证

场景1.在MPLS核心中具有单跳邻接的L3VPN

参考拓扑

在本例中，Catalyst 9300交换机用作PE设备，Stackwise虚拟中的Catalyst 9500用作P设备，Catalyst 3850交换机用作CE设备。

Catalyst MPLS L3VPN Topology 1

配置细节

C3850-CE-1的配置

hostname C3850-CE-1
!
interface Loopback0
ip address 192.168.3.1 255.255.255.0
!
interface TenGigabitEthernet1/0/1
no switchport
ip address 10.0.0.1 255.255.255.252
!
router eigrp 420
network 10.0.0.0 0.0.0.3
network 192.168.3.0 0.0.0.255
eigrp stub connected summary
!
ip route 0.0.0.0 0.0.0.0 10.0.0.2

C9300-PE-1的配置

hostname C9300-PE-1
!
ip vrf RED
rd 69:69
route-target export 69:69
route-target import 69:69
!
mpls ldp explicit-null
!
interface Loopback0
ip address 192.168.1.2 255.255.255.255
!
interface GigabitEthernet1/0/1
no switchport
ip vrf forwarding RED
ip address 10.0.0.2 255.255.255.252
!
interface GigabitEthernet1/0/2
no switchport
ip address 10.0.0.5 255.255.255.252
!
router eigrp 420
!
address-family ipv4 vrf RED
network 10.0.0.0 0.0.0.3
autonomous-system 420
exit-address-family
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
!
router bgp 69420
bgp log-neighbor-changes
neighbor 192.168.1.4 remote-as 69420
neighbor 192.168.1.4 update-source Loopback0
!
address-family vpnv4
neighbor 192.168.1.4 activate
neighbor 192.168.1.4 send-community extended
exit-address-family
!
address-family ipv4 vrf RED
redistribute eigrp 420
exit-address-family

C9500-P的配置

hostname C9500-P
!
interface Loopback0
ip address 192.168.1.3 255.255.255.255
!
interface TenGigabitEthernet1/0/1
no switchport
ip address 10.0.0.6 255.255.255.252
!
interface TenGigabitEthernet1/0/2
no switchport
ip address 10.0.0.13 255.255.255.252
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig

C9300-CE-2的配置

hostname C9300-PE-2
!
ip vrf RED
rd 69:69
route-target export 69:69
route-target import 69:69
!
mpls ldp explicit-null
!
interface Loopback0
ip address 192.168.1.4 255.255.255.255
!
interface GigabitEthernet2/0/1
no switchport
ip vrf forwarding RED
ip address 10.0.0.21 255.255.255.252
!
interface GigabitEthernet2/0/2
no switchport
ip address 10.0.0.14 255.255.255.252
!
router eigrp 400
!
address-family ipv4 vrf RED
network 10.0.0.20 0.0.0.3
autonomous-system 400
exit-address-family
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
!
router bgp 69420
bgp log-neighbor-changes
neighbor 192.168.1.2 remote-as 69420
neighbor192.168.1.2 update-source Loopback0
!
address-family vpnv4
neighbor 192.168.1.2 activate
neighbor 192.168.1.2 send-community extended
exit-address-family
!
address-family ipv4 vrf RED
redistribute eigrp 400
exit-address-family

C3850-CE-2的配置

hostname C3850-CE-2
!
interface Loopback0
ip address 192.168.2.1 255.255.255.0
!
interface TenGigabitEthernet2/0/1
no switchport
ip address 10.0.0.22 255.255.255.252
!
router eigrp 400
network 10.0.0.20 0.0.0.3
network 192.168.2.0 0.0.0.255
eigrp stub connected summary
!
ip route 0.0.0.0 0.0.0.0 10.0.0.21

基本验证

在验证MPLS编程之前，需要验证的基本要求有：

验证PE到PE的连接是否存在
验证PE之间的标签交换路径(LSP)
验证PE之间的BGPv4邻接
验证VPNv4和LDP标签
验证MPLS转发表

验证PE到PE的连接

您可以从本地环回对远程PE环回和源执行ping操作，但这不会确认MPLS标签交换路径(LSP)是否良好，因为环回IP地址在底层通告。

注意: PE到PE MP-BGP VPNv4邻接通过各自的Loopback0接口实现。

C9300-PE-1#ping 192.168.1.4 source 192.168.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.4, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

C9300-PE-1#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
Known via "ospf 420", distance 110, metric 3, type intra area
Last update from 10.0.0.10 on GigabitEthernet1/0/3, 00:55:58 ago
Routing Descriptor Blocks:
* 10.0.0.6, from 192.168.1.4, 00:55:58 ago, via GigabitEthernet1/0/2
Route metric is 3, traffic share count is 1

验证LSP

您可以使用从PE到PE环回的MPLS跟踪路由来验证LSP和沿路径的所有MPLS LDP标签。

注意:此MPLS跟踪路由仅强加一个标签（LDP标签），这并不表明来自CE的流量是成功的，因为该流量强加了2个标签，即VPNv4（内部）标签和LDP（外部）标签。

C9300-PE-1#traceroute mpls ipv4 192.168.1.4/32 source 192.168.1.2
Tracing MPLS Label Switched Path to 192.168.1.4/32, timeout is 2 seconds

Codes: '!' - success, 'Q' - request not sent, '.' - timeout,
  'L' - labeled output interface, 'B' - unlabeled output interface,
  'D' - DS Map mismatch, 'F' - no FEC mapping, 'f' - FEC mismatch,
  'M' - malformed request, 'm' - unsupported tlvs, 'N' - no label entry,
  'P' - no rx intf label prot, 'p' - premature termination of LSP,
  'R' - transit router, 'I' - unknown upstream index,
  'l' - Label switched with FEC change, 'd' - see DDMAP for return code,
  'X' - unknown return code, 'x' - return code 0

Type escape sequence to abort.
  0 10.0.0.5 MRU 1500 [Labels: 17 Exp: 0]
L 1 10.0.0.6 MRU 1500 [Labels: explicit-null Exp: 0] 8 ms
! 2 10.0.0.14 2 ms

如果您无权访问CE或CE后面的设备，并且想要证明VPNv4和LDP标签实施/处置成功，则可以尝试从PE上VRF中面向CE的接口ping远程PE上VRF中面向CE的接口。

C9300-PE-1#ping vrf RED 10.0.0.21 source 10.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.21, timeout is 2 seconds:
Packet sent with a source address of 10.0.0.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms

验证PE之间的BGP VPNv4邻接

C9300-PE-1#show bgp vpnv4 unicast all neighbors 192.168.1.4
BGP neighbor is 192.168.1.4, remote AS 69420, internal link
BGP version 4, remote router ID 192.168.1.4
BGP state = Established, up for 00:57:37
Last read 00:00:41, last write 00:00:41, hold time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Address family VPNv4 Unicast: advertised and received
Enhanced Refresh Capability: advertised and received
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0

Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 6 6
Keepalives: 62 63
Route Refresh: 0 0
Total: 69 70
Do log neighbor state changes (via global configuration)
Default minimum time between advertisement runs is 0 seconds
<snip>

C9300-PE-2#show bgp vpnv4 unicast all neighbors 192.168.1.2
BGP neighbor is 192.168.1.2, remote AS 69420, internal link
BGP version 4, remote router ID 192.168.1.2
BGP state = Established, up for 01:01:00
Last read 00:00:13, last write 00:00:37, hold time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Address family VPNv4 Unicast: advertised and received
Enhanced Refresh Capability: advertised and received
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0

Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 6 6
Keepalives: 67 66
Route Refresh: 0 0
Total: 74 73
Do log neighbor state changes (via global configuration)
Default minimum time between advertisement runs is 0 seconds

远程PE VPNv4邻接关系已启用，且已收到前缀

C9300-PE-1#show bgp vpnv4 unicast all summary
BGP router identifier 192.168.1.2, local AS number 69420
BGP table version is 7, main routing table version 7
4 network entries using 1024 bytes of memory
4 path entries using 544 bytes of memory
4/4 BGP path/bestpath attribute entries using 1216 bytes of memory
4 BGP extended community entries using 1000 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 3784 total bytes of memory
BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs
4 networks peaked at 16:19:10 Jun 1 2021 UTC (01:32:00.716 ago)

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
192.168.1.4     4        69420     108     108        7    0    0 01:34:52        2

C9300-PE-2#show bgp vpnv4 unicast all summary
BGP router identifier 192.168.1.4, local AS number 69420
BGP table version is 7, main routing table version 7
4 network entries using 1024 bytes of memory
4 path entries using 544 bytes of memory
4/4 BGP path/bestpath attribute entries using 1216 bytes of memory
4 BGP extended community entries using 1000 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 3784 total bytes of memory
BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs
4 networks peaked at 16:18:31 Jun 1 2021 UTC (01:37:30.404 ago)

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
192.168.1.2     4        69420     114     114        7    0    0 01:40:22        2

验证特定VRF中交换的前缀

C9300-PE-1#show ip bgp vpnv4 vrf RED
BGP table version is 10, local router ID is 192.168.1.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
              t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 69:69 (default for vrf RED)
 *>   10.0.0.0/30      0.0.0.0                  0         32768 ?
 *>i  10.0.0.20/30     192.168.1.4              0    100      0 ?
 *>   192.168.1.0      10.0.0.1            130816         32768 ?
 *>i  192.168.2.0      192.168.1.4         130816    100      0 ?

C9300-PE-2#show ip bgp vpnv4 vrf RED
BGP table version is 9, local router ID is 192.168.1.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
              t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 69:69 (default for vrf RED)
 *>i  10.0.0.0/30      192.168.1.2              0    100      0 ?
 *>   10.0.0.20/30     0.0.0.0                  0         32768 ?
 *>i  192.168.1.0      192.168.1.2         130816    100      0 ?
 *>   192.168.2.0      10.0.0.22           130816         32768 ?

验证VPNv4和LDP标签：

验证用于到达VRF中前缀的VPNv4标签

C9300-PE-1#show ip bgp vpnv4 vrf RED labels
   Network          Next Hop      In label/Out label
Route Distinguisher: 69:69 (RED)
   10.0.0.0/30      0.0.0.0         20/nolabel(RED)
   10.0.0.20/30     192.168.1.4     nolabel/20
   192.168.1.0      10.0.0.1        21/nolabel
   192.168.2.1/32   192.168.1.4     nolabel/21 <-- VPNv4 label that is imposed to reach 192.168.2.0

C9300-PE-1#show ip route vrf RED 192.168.2.1
Routing Table: RED
Routing entry for 192.168.2.0/24
Known via "bgp 69420", distance 200, metric 130816, type internal
Last update from 192.168.1.4 01:31:56 ago
Routing Descriptor Blocks:
* 192.168.1.4 (default), from 192.168.1.4, 01:31:56 ago
Route metric is 130816, traffic share count is 1
AS Hops 0
MPLS label: 21 <-- VPNv4 label that matches the previous output 
MPLS Flags: MPLS Required

C9300-PE-2#show ip bgp vpnv4 vrf RED labels
   Network          Next Hop      In label/Out label
Route Distinguisher: 69:69 (RED)
   10.0.0.0/30      192.168.1.2     nolabel/20
   10.0.0.20/30     0.0.0.0         20/nolabel(RED)
   192.168.1.0      192.168.1.2     nolabel/21
   192.168.2.0.     10.0.0.22       21/nolabel <-- VPNv4 label that is advertised to reach 192.168.2.0

C9300-PE-2#show ip route vrf RED 192.168.2.1

Routing Table: RED
Routing entry for 192.168.2.0/24
  Known via "eigrp 400", distance 90, metric 130816, precedence routine (0), type internal
  Redistributing via eigrp 400, bgp 69420
  Advertised by bgp 69420
  Last update from 10.0.0.22 on GigabitEthernet2/0/1, 01:34:42 ago
  Routing Descriptor Blocks:
  * 10.0.0.22, from 10.0.0.22, 01:34:42 ago, via GigabitEthernet2/0/1 <-- CE-facing interface in the VRF
      Route metric is 130816, traffic share count is 1
      Total delay is 5010 microseconds, minimum bandwidth is 1000000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1

验证使用的LDP标签

C9300-PE-1#show mpls forwarding-table 192.168.1.4
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
19         17         192.168.1.4/32   0             Gi1/0/2    10.0.0.6 <-- 17 is the LDP label imposed to reach PE at 192.168.1.4 through Gi1/0/2

C9300-PE-2#show mpls forwarding-table 192.168.1.2
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
17         16         192.168.1.2/32   0             Gi2/0/2    10.0.0.13 <-- 16 is the LDP label imposed to reach PE at 192.168.1.4 through Gi2/0/2

验证MPLS转发表

C9300-PE-1#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         Pop Label  192.168.1.3/32   0             Gi1/0/2    10.0.0.6
17         Pop Label  10.0.0.16/30     0             Gi1/0/2    10.0.0.6
18         Pop Label  10.0.0.12/30     0             Gi1/0/2    10.0.0.6
19         17         192.168.1.4/32   0             Gi1/0/2    10.0.0.6
20         No Label   10.0.0.0/30[V]   1982          aggregate/RED
21         No Label   192.168.3.0/24[V]   \
                                       0             Gi1/0/1    10.0.0.1

C9300-PE-2#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         Pop Label  192.168.1.3/32   0             Gi2/0/2    10.0.0.13
           Pop Label  192.168.1.3/32   0             Gi2/0/3    10.0.0.17
17         16         192.168.1.2/32   164           Gi2/0/2    10.0.0.13
           16         192.168.1.2/32   1224          Gi2/0/3    10.0.0.17
18         Pop Label  10.0.0.4/30      0             Gi2/0/2    10.0.0.13
           Pop Label  10.0.0.4/30      0             Gi2/0/3    10.0.0.17
20         No Label   10.0.0.20/30[V]  0             aggregate/RED
21         No Label   192.168.2.0/24[V]   \
                                       1440          Gi2/0/1    10.0.0.22

确认用于到达VRF中每个给定前缀的内部(VPNv4)和外部(LDP)标签

C9300-PE-1#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.1/32, epoch 0, flags [rib defined all labels]
  recursive via 192.168.1.4 label 21 <-- VPNv4 label
    nexthop 10.0.0.6 GigabitEthernet1/0/2 label 17-(local:19) <-- 17 is the LDP label that is be imposed to reach the remote PE, 
                                                                  19 is the local LDP label advertised to the P router

C9300-PE-2#show ip cef vrf RED 192.168.3.0/24 detail
192.168.1.1/32, epoch 0, flags [rib defined all labels]
  recursive via 192.168.1.2 label 22 <-- VPNv4 label 
    nexthop 10.0.0.13 GigabitEthernet2/0/2 label 16-(local:17) <-- 16 is the LDP label that is be imposed to reach the remote PE,
                                                                   17 is the local LDP label advertised to the P router

验证Object-Manager统计信息

在理想情况下，没有挂起的对象

C9300-PE-1#show platform software object-manager switch active f0 statistics
Forwarding Manager Asynchronous Object Manager Statistics

Object update: Pending-issue: 0, Pending-acknowledgement: 0
Batch begin:   Pending-issue: 0, Pending-acknowledgement: 0
Batch end:     Pending-issue: 0, Pending-acknowledgement: 0
Command:       Pending-acknowledgement: 0
Total-objects: 491
Stale-objects: 0
Resolve-objects: 0
Childless-delete-objects: 0
Error-objects: 0
Paused-types: 0

9500-P#show platform software object-manager switch active f0 statistics
Forwarding Manager Asynchronous Object Manager Statistics

Object update: Pending-issue: 0, Pending-acknowledgement: 0
Batch begin:   Pending-issue: 0, Pending-acknowledgement: 0
Batch end:     Pending-issue: 0, Pending-acknowledgement: 0
Command:       Pending-acknowledgement: 0
Total-objects: 491
Stale-objects: 0
Resolve-objects: 0
Childless-delete-objects: 0
Error-objects: 0
Paused-types: 0

C9300-PE-2#show platform software object-manager switch active f0 statistics
Forwarding Manager Asynchronous Object Manager Statistics

Object update: Pending-issue: 0, Pending-acknowledgement: 0
Batch begin:   Pending-issue: 0, Pending-acknowledgement: 0
Batch end:     Pending-issue: 0, Pending-acknowledgement: 0
Command:       Pending-acknowledgement: 0
Total-objects: 482
Stale-objects: 0
Resolve-objects: 0
Childless-delete-objects: 0
Error-objects: 0
Paused-types: 0

前缀编程

下一节介绍MPLS路由器、C9300-PE-1、C9500-P和C9300-PE-2上的前缀编程。

C9300-PE-1前缀编程

***Software Prefix Programming***
C9300-PE-1#show ip route vrf RED 192.168.2.1

Routing Table: RED
Routing entry for 192.168.2.0/24
  Known via "bgp 69420", distance 200, metric 130816, type internal
  Last update from 192.168.1.4 20:21:40 ago
  Routing Descriptor Blocks:
  * 192.168.1.4 (default), from 192.168.1.4, 20:21:40 ago <-- Remote PE reachable in the global routing table 
      Route metric is 130816, traffic share count is 1
      AS Hops 0
      MPLS label: 21 <-- VPNv4 label 
      MPLS Flags: MPLS Required

C9300-PE-1#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
Known via "ospf 420", distance 110, metric 3, type intra area
Last update from 10.0.0.6 on GigabitEthernet1/0/2, 21:27:11 ago
Routing Descriptor Blocks:
* 10.0.0.6, from 192.168.1.4, 21:27:11 ago, via GigabitEthernet1/0/2 <-- Next-hop 10.0.0.6 via Gi1/0/2 to reach 
    Route metric is 3, traffic share count is 1

***FMAN RP Prefix Programming***
C9300-PE-1#show ip vrf detail
VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID is important in subsequent command 
  Old CLI format, supports IPv4 only
  Flags: 0xC
  Interfaces:
    Gi1/0/1
Address family ipv4 unicast (Table ID = 0x2):
  Flags: 0x0
  Export VPN route-target communities
    RT:69:69
  Import VPN route-target communities
    RT:69:69
  No import route-map
  No global export route-map
  No export route-map
  VRF label distribution protocol: not configured
  VRF label allocation mode: per-prefix

C9300-PE-1#show platform software ip switch active r0 cef table index 2 prefix 192.168.2.0/24 <-- Index value is the VRF ID from previous command
Forwarding Table

Prefix/Len                      Next Object      Index
----------------------------------------------------------------
192.168.2.0/24                  OBJ_LABEL        0x14

C9300-PE-1#show platform software mpls switch active r0 label index 0x14 <-- Utilize the Index value from previous command


Label OCE 0x14 -> OBJ_LABEL (0x17) <-- Utilized in next command
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x15
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x3480636fb0

C9300-PE-1#show platform software mpls switch active r0 label index 0x17 <-- Utilize the OBJ_LABEL value from previous command 


Label OCE 0x17 -> OBJ_ADJACENCY (0x46) <-- Utilized in next command
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x348062f858
    
C9300-PE-1#show platform software adjacency switch active r0 index 0x46 <-- Utilize the OBJ_ADJACENCY value from previous command
Number of adjacency objects: 6

Adjacency id: 0x46 (70)
  Interface: GigabitEthernet1/0/2, IF index: 54, Link Type: MCP_LINK_TAG <-- Egress interface 
  Encap: d4:ad:71:b5:dd:e4:a0:f8:49:11:d1:d6:88:47 <-- MAC ending in DDE4 is the DMAC, MAC ending in D1D6 is SMAC, 8847 is MPLS ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.6 <-- Next-hop IP address
  IP FRR MCP_ADJ_IPFRR_NONE 0
  OM handle: 0x3480636280 
  
***FMAN FP Prefix Programming***
C9300-PE-1#show ip vrf detail
VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID is important in subsequent command 
  Old CLI format, supports IPv4 only
  Flags: 0xC
  Interfaces:
    Gi1/0/1
Address family ipv4 unicast (Table ID = 0x2):
  Flags: 0x0
  Export VPN route-target communities
    RT:69:69
  Import VPN route-target communities
    RT:69:69
  No import route-map
  No global export route-map
  No export route-map
  VRF label distribution protocol: not configured
  VRF label allocation mode: per-prefix
  
C9300-PE-1#show platform software ip switch active f0 cef table index 2 prefix 192.168.2.0/24 detail <-- Index value is the VRF ID from previous command
Forwarding Table

192.168.2.0/24 -> OBJ_LABEL (0x14), urpf: 15 <-- Utilized in next command
Prefix Flags: unknown
aom id: 648, HW handle: (nil) (created)

C9300-PE-1#show platform software mpls switch active f0 label index 0x14 <-- Utilize the OBJ_LABEL value from the previous command


Label OCE 0x14 -> OBJ_LABEL (0x17) <-- Utilized in next command
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x15
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 647, CPP handle: 0xdeadbeef (created)
  
C9300-PE-1#show platform software mpls switch active f0 label index 0x17 <-- Utilize the OBJ_LABEL value from the previous command


Label OCE 0x17 -> OBJ_ADJACENCY (0x46) <-- Utilized in next command
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 664, CPP handle: 0xdeadbeef (created)  
  
  
C9300-PE-1#show platform software adjacency switch active f0 index 0x46 <-- Utilize the OBJ_ADJACENCY value from the previous command
Number of adjacency objects: 6

Adjacency id: 0x46 (70)
  Interface: GigabitEthernet1/0/2, IF index: 54, Link Type: MCP_LINK_TAG <-- Egress interface 
  Encap: d4:ad:71:b5:dd:e4:a0:f8:49:11:d1:d6:88:47 <-- MAC ending in DDE4 is the DMAC, MAC ending in D1D6 is SMAC, 8847 is MPLS ETYPE 
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.6 <-- Next-hop IP address
  IP FRR MCP_ADJ_IPFRR_NONE 0
  aom id: 522, HW handle: (nil) (created)

***FED Prefix Programming***
C9300-PE-1#show platform software fed switch active ip route vrf-name RED 192.168.2.0/24
vrf   dest                                          htm            flags   SGT   DGID MPLS Last-modified
---   ----                                          ---            -----   ---   ---- ---- ------------------------
2     192.168.2.0/24                                0x7feeeca12bb8 0x0     0     0   lspa0x2  2021/06/14 17:13:59.644 <-- HTM value significant for next command
  FIB: prefix_hdl:0x5000002a, mpls_ecr_prefix_hdl:0
  ========== OCE chain =====
  LABEL:objid:20 link_type:MPLS local_label:1048577 outlabel:(21, 0) <-- VPNv4 Label 
      flags:0x1:(REAL,) pdflags:0x80:(INSTALL_HW_OK,RECIR_ADJ,) adj_handle:0x5100003d <-- adj_handle and local_adj_hdl values must match
      unsupported recursion:0 olbl_changed 0 local_adj:1 modify_cnt:1
      bwalk_cnt:0 subwalk_cnt:1 collapsed_oce:0
      AAL: id:1358954557 lbl:19 smac:0000.0000.0000 dmac:0000.0000.0000 <-- Label 19 matches the local transport label 
           sub_type:0 link_type:0 adj_flags:0x10 label_type:0 rewrite_type:PSH2(121)
           vlan_id:0 vrf_id:0 ri:0x7feeeca9acf8, ri_id:0x46 phdl:0, ref_cnt:2 <-- ri_id and ri_idx values must match 
           si:0x7feeeca6ab98, si_id:0xb6, di_id:0x5013
  LABEL:objid:23 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Label 19 is the local transport label, Label 17 is the LDP label 
      flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x50000034
      unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
      bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
      AAL: id:1342177332 lbl:0 smac:a0f8.4911.d1d6 dmac:d4ad.71b5.dde4 <-- Matches the next-hop information to reach 192.168.2.0/24
           sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
           vlan_id:0 vrf_id:0 ri:0x7feeecd6d238, ri_id:0x3e phdl:0x9f00004b, ref_cnt:1
           si:0x7feeecd706d8, si_id:0x4013, di_id:0x535f <-- di_id utilized in subsequent commands
  ADJ:objid:70 {link_type:MPLS ifnum:0x36, si:0x94000021, }
  ===============
  MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0xab000003
    AAL:LSPA: id:2868903939 num_path:1 prefix_id:0x2 delete_hw_hdl_cnt:0
         cookie[64]: 15000000000000000000000000000000000000000000000000000000000000004600000000000000000000000000000000000000000000000000000000000000 status:ok
          vpn_lbl:21 local_adj_hdl:0x5100003d hw_hdl:0x7feeecab2d48 ri_idx:0x46 <-- vpn_lbl matches the VPNv4 label,adj_handle and local_adj_hdl values must match,ri_id and ri_idx values must match 
  ===============
  
C9300-PE-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7feeeca12bb8 1 <-- Utilize HTM value from previous command
Handle:0x7feeeca12bb8 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7feeeca2af28
Features sharing this resource:Cookie length: 12
01 02 a8 c0 00 00 02 d0 07 00 00 00

Detailed Resource Information (ASIC# 0)
----------------------------------------
Number of HTM Entries: 1

Entry 0: (handle 0x7feeeca2af28)

Absolute Index: 66036
Time Stamp: 160003
KEY - vrf:2 mtr:0 prefix:192.168.2.0 rcp_redirect_index:0x0
MASK - vrf:0 mtr:0 prefix:0.0.0.255 rcp_redirect_index:0x0
FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:182 destined_to_us:0 hw_stats_idx:0 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0x2
SRC-AD = learning_violation:0 need_to_learn:0  locally_connected:0 staticentryViolation:0
rpfValid:1 rpfLe:0 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:0 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0
port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0


==============================================================

C9300-PE-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x535f 0x535f <-- Utilize the di_id from the previous command 
ASIC#0:

index = 0x535f
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x535f
pmap = 0x00000000 0x00000002 <-- Looking at 0x00000002, in binary that is 0000 0000 0000 0000 0000 0000 0000 0010 = Port 1 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9300-PE-1#show plat soft fed switch active ifm mappings
Interface                 IF_ID    Inst Asic Core Port SubPort Mac  Cntx LPN  GPN  Type Active
GigabitEthernet1/0/2      0x36       1   0   1    1      0      6    7    2    2    NIF  Y    <-- Port 1 is the egress port, Gi1/0/2

C9500-P前缀编程

***Software Prefix Programming***
C9500-P#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
  Known via "ospf 420", distance 110, metric 2, type intra area
  Last update from 10.0.0.14 on TenGigabitEthernet1/0/2, 1d21h ago
  Routing Descriptor Blocks:
  * 10.0.0.14, from 192.168.1.4, 1d21h ago, via TenGigabitEthernet1/0/2 <-- Next-hop to reach 192.168.1.4
      Route metric is 2, traffic share count is 1
      
C9500-P#show ip cef 192.168.1.4 detail
192.168.1.4/32, epoch 4
  dflt local label info: global/17 [0x3]
  nexthop 10.0.0.14 TenGigabitEthernet1/0/2 label explicit-null-(local:17)
 
***FMAN RP Prefix Programming*** 
C9500-P#show platform software ip switch active r0 cef prefix 192.168.1.4/32
Forwarding Table

Prefix/Len                      Next Object      Index
----------------------------------------------------------------
192.168.1.4/32                  OBJ_LABEL        0x16 <-- Value used in next command 

C9500-P#show platform software mpls switch active r0 label index 0x16 <-- Utilize the OBJ_LABEL value from previous command


Label OCE 0x16 -> OBJ_ADJACENCY (0x49) <-- Value used in next command 
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x34806492f0
  
C9500-P#show platform software adjacency switch active r0 index 0x49 <-- Utilize OBJ_ADJACENCY value from previous command
Number of adjacency objects: 8

Adjacency id: 0x49 (73)
  Interface: TenGigabitEthernet1/0/2, IF index: 66, Link Type: MCP_LINK_TAG
  Encap: 70:d3:79:be:ae:71:d4:ad:71:b5:dd:d6:88:47 <-- MAC ending in AE71 is the DMAC, MAC ending in DDD6 is the SMAC, 8847 is MPLS ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.14 <-- Next-hop IP 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  OM handle: 0x3480647760

***FMAN FP Prefix Programming***  
C9500-P#show platform software ip switch active f0 cef prefix 192.168.1.4/32 detail
Forwarding Table

192.168.1.4/32 -> OBJ_LABEL (0x16), urpf: 21 <-- Used in subsequent command 
Prefix Flags: unknown
aom id: 567, HW handle: (nil) (created)

C9500-P#show platform software mpls switch active f0 label index 0x16 <-- Utilize the OBJ_LABEL value from previous command


Label OCE 0x16 -> OBJ_ADJACENCY (0x49) <-- Used in subsequent command 
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 589, CPP handle: 0xdeadbeef (created)
  
C9500-P#show platform software adjacency switch active f0 index 0x49 <-- Utilize the OBJ_ADJACENCY from previous command 
Number of adjacency objects: 8

Adjacency id: 0x49 (73)
  Interface: TenGigabitEthernet1/0/2, IF index: 66, Link Type: MCP_LINK_TAG
  Encap: 70:d3:79:be:ae:71:d4:ad:71:b5:dd:d6:88:47 <-- MAC ending in AE71 is the DMAC, MAC ending in DDD6 is the SMAC, 8847 is MPLS ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.14 <-- Next-hop IP
  IP FRR MCP_ADJ_IPFRR_NONE 0
  aom id: 535, HW handle: (nil) (created)

*** FED Prefix Programming***  
C9500-P#show platform software fed switch active ip route 192.168.1.4/32
vrf   dest                                          htm            flags   SGT   DGID MPLS Last-modified
---   ----                                          ---            -----   ---   ---- ---- ------------------------
0     192.168.1.4/32                                0x7f790c4cf0e8 0x0     0     0         2021/06/14 22:10:54.150 <-- HTM value significant for next command 
  FIB: prefix_hdl:0x6a000020, mpls_ecr_prefix_hdl:0
  ========== OCE chain =====
  LABEL:objid:22 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label
      flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xb9000037
      unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
      bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
      AAL: id:3103785015 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71 <-- Matches the next-hop information to reach 192.168.1.4/32
           sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
           vlan_id:0 vrf_id:0 ri:0x7f790c4cdfd8, ri_id:0x38 phdl:0x76000058, ref_cnt:1
           si:0x7f790c4c22f8, si_id:0x400b, di_id:0x2 <-- di_id utilized in subsequent commands 
  ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0x2d000027, }
  ===============
  MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0
  ===============

C9500-P#show platform hardware fwd-asic abstraction print-resource-handle 0x7f790c4cf0e8 1 <-- Utilize the HTM value from previous command 
Handle:0x7f790c4cf0e8 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f790c4cf2f8
Features sharing this resource:Cookie length: 12
04 01 a8 c0 00 00 00 d0 07 00 00 00

Detailed Resource Information (ASIC# 0)
----------------------------------------
Number of HTM Entries: 1

Entry 0: (handle 0x7f790c4cf2f8)

Absolute Index: 126650
Time Stamp: 40
KEY - vrf:0 mtr:0 prefix:192.168.1.4 rcp_redirect_index:0x0
MASK - vrf:0 mtr:0 prefix:0.0.0.0 rcp_redirect_index:0x0
FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:16395 destined_to_us:0 hw_stats_idx:1 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0
SRC-AD = learning_violation:0 need_to_learn:0  locally_connected:0 staticentryViolation:0
rpfValid:1 rpfLe:38 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:1 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0
port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0


==============================================================

C9500-P#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x2 0x2 <-- Utilize the di_id value from the previous command 
ASIC#0:

index = 0x2
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x2
pmap = 0x00000000 0x00000002 <-- 0x00000002 in binary is 0000 0000 0000 0000 0000 0000 0000 = Port 1 (Zero based, count right to left) 
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9500-P#show platform software fed switch active ifm mappings
Interface                 IF_ID    Inst Asic Core Port SubPort Mac  Cntx LPN  GPN  Type Active
TenGigabitEthernet1/0/2   0x42       1   0   1    1      0      10   1    2    2    NIF  Y    <-- Port 1 is the egress port, TenGig1/0/2

C9300-PE-2前缀编程

***Software Prefix Programming***
C9300-PE-2#show ip route vrf RED 192.168.2.1

Routing Table: RED
Routing entry for 192.168.2.0/24
  Known via "eigrp 400", distance 90, metric 130816, precedence routine (0), type internal
  Redistributing via eigrp 400, bgp 69420
  Advertised by bgp 69420
  Last update from 10.0.0.22 on GigabitEthernet2/0/1, 1d21h ago
  Routing Descriptor Blocks:
  * 10.0.0.22, from 10.0.0.22, 1d21h ago, via GigabitEthernet2/0/1 <-- Next-hop reachable in the VRF
      Route metric is 130816, traffic share count is 1
      Total delay is 5010 microseconds, minimum bandwidth is 1000000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1

C9300-PE-2#show ip route vrf RED 10.0.0.22

Routing Table: RED
Routing entry for 10.0.0.20/30
  Known via "connected", distance 0, metric 0 (connected, via interface)
  Redistributing via eigrp 400, bgp 69420
  Advertised by bgp 69420
  Routing Descriptor Blocks:
  * directly connected, via GigabitEthernet2/0/1 <-- Next-hop directly connected
      Route metric is 0, traffic share count is 1
      
C9300-PE-2#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.0/24, epoch 0
  QOS: Precedence routine (0)
  dflt local label info: other/21 [0x2]
  nexthop 10.0.0.22 GigabitEthernet2/0/1

***FMAN RP Prefix Programming***  
C9300-PE-2#show ip vrf detail
VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID is important in subsequent command 
  Old CLI format, supports IPv4 only
  Flags: 0xC
  Interfaces:
    Gi2/0/1
Address family ipv4 unicast (Table ID = 0x2):
  Flags: 0x0
  Export VPN route-target communities
    RT:69:69
  Import VPN route-target communities
    RT:69:69
  No import route-map
  No global export route-map
  No export route-map
  VRF label distribution protocol: not configured
  VRF label allocation mode: per-prefix 
  
C9300-PE-2#show platform software ip switch active r0 cef table index 2 prefix 192.168.2.0/24
Forwarding Table

Prefix/Len                      Next Object      Index
----------------------------------------------------------------
192.168.2.0/24                  OBJ_ADJACENCY    0x19 

C9300-PE-2#show platform software adjacency switch active r0 index 0x19 <-- Utilize the Index value from previous command 
Number of adjacency objects: 6

Adjacency id: 0x19 (25)
  Interface: GigabitEthernet2/0/1, IF index: 53, Link Type: MCP_LINK_IP
  Encap: 0:72:78:c8:c9:c2:70:d3:79:be:ae:42:8:0 <-- MAC ending in C9C2 is DMAC, MAC ending in AE42 is SMAC, 0x800 is the IP ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: no-l3-inject
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.22
  IP FRR MCP_ADJ_IPFRR_NONE 0
  OM handle: 0x348062f118

***FMAN FP Prefix Programming***  
C9300-PE-2#show platform software ip switch active f0 cef table index 2 prefix 192.168.2.0/24 detail 
Forwarding Table

192.168.2.0/24 -> OBJ_ADJACENCY (0x19), urpf: 30 <-- Utilized in next command 
Prefix Flags: unknown
aom id: 665, HW handle: (nil) (created)
QPPB precedence: 0

C9300-PE-2#show platform software adjacency switch active f0 index 0x19 <-- Utilize the OBJ_ADJACENCY from previous command 
Number of adjacency objects: 6

Adjacency id: 0x19 (25)
  Interface: GigabitEthernet2/0/1, IF index: 53, Link Type: MCP_LINK_IP
  Encap: 0:72:78:c8:c9:c2:70:d3:79:be:ae:42:8:0
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: no-l3-inject
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.22
  IP FRR MCP_ADJ_IPFRR_NONE 0
  aom id: 659, HW handle: (nil) (created)

***FED Prefix Programming***  
C9300-PE-2#show platform software fed switch active ip route vrf-name RED 192.168.2.0/24
vrf   dest                                          htm            flags   SGT   DGID MPLS Last-modified
---   ----                                          ---            -----   ---   ---- ---- ------------------------
2     192.168.2.0/24                                0x7f7fb4a25648 0x0     0     0         2021/06/14 17:04:13.460 <-- HTM value significant for next command 
  FIB: prefix_hdl:0x6e00002a, mpls_ecr_prefix_hdl:0
  ========== OCE chain =====
  ADJ:objid:25 {link_type:IP ifnum:0x35, si:0x3300003e, IPv4:       10.0.0.22 }
  ===============
  MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0
  
  
  =============== 
  
C9300-PE-2#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f7fb4a25648 1 <-- Utilize HTM value from previous command
Handle:0x7f7fb4a25648 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f7fb4a10e58
Features sharing this resource:Cookie length: 12
01 02 a8 c0 00 00 02 d0 07 00 00 00

Detailed Resource Information (ASIC# 0)
----------------------------------------
Number of HTM Entries: 1

Entry 0: (handle 0x7f7fb4a10e58)

Absolute Index: 66036
Time Stamp: 164911
KEY - vrf:2 mtr:0 prefix:192.168.2.0 rcp_redirect_index:0x0
MASK - vrf:0 mtr:0 prefix:0.0.0.255 rcp_redirect_index:0x0
FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:182 destined_to_us:0 hw_stats_idx:1 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0
SRC-AD = learning_violation:0 need_to_learn:0  locally_connected:0 staticentryViolation:0
rpfValid:1 rpfLe:37 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:1 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0
port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0


==============================================================

C9300-PE-2#show platform software fed switch active ip adj
IPV4 Adj entries
dest            if_name                 dst_mac          si_hdl         ri_hdl         pd_flags adj_id  Last-modified
----            -------                 -------          ------         ------         -------- -----   ------------------------
10.0.0.22       GigabitEthernet2/0/1    0072.78c8.c9c2   0x7f7fb4a44048 0x7f7fb4b089d8 0x0      0x19       2021/06/14 16:59:43.447 <-- si_hdl used in next command

C9300-PE-2#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f7fb4a44048 1 <-- Utilize the si_hdl value from previous command
Handle:0x7f7fb4a44048 Res-Type:ASIC_RSC_SI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: 0x7f7fb4b089d8Hardware Indices/Handles: index0:0xb6  mtu_index/l3u_ri_index0:0x0  index1:0xb6  mtu_index/l3u_ri_index1:0x0
Features sharing this resource:66 (1)]
Cookie length: 56
00 00 00 00 00 00 00 00 25 00 00 00 00 00 00 00 00 00 00 00 08 00 00 72 78 c8 c9 c2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Detailed Resource Information (ASIC# 0)
----------------------------------------


Station Index (SI) [0xb6]
RI = 0x2b
DI = 0x5338
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0
rcpServiceId = 0
dejaVuPreCheckEn = 0
Replication Bitmap: CD

Detailed Resource Information (ASIC# 1)
----------------------------------------


Station Index (SI) [0xb6]
RI = 0x2b
DI = 0x5338
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0
rcpServiceId = 0
dejaVuPreCheckEn = 0
Replication Bitmap: LD

==============================================================  

C9300-PE-2#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x5338 0x5338 <-- Utilize the DI value from previous command
ASIC#0:

index = 0x5338
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x5338
pmap = 0x00000000 0x00000001 <-- 0x00000001 in binary is 0000 0000 0000 0000 0000 0000 0000 0001 = Port 0 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9300-PE-2#show platform software fed switch active ifm map
Interface                 IF_ID    Inst Asic Core Port SubPort Mac  Cntx LPN  GPN  Type Active
GigabitEthernet2/0/1      0x35       1   0   1    0      0      26   6    1    97   NIF  Y    <-- Port 0 is the egress port, Gi2/0/1

VPNv4标签编程

下一节介绍MPLS PE路由器C9300-PE-1和C9300-PE-2上的VPNv4标签编程。C9500不会在VPNv4标签上转发，因此C9500没有输出。

C9300-PE-1 VPNv4标签编程：

检查PE的本地前缀，而不是远程前缀。

***Software VPNv4 Label Programming***
C9300-PE-1#show ip cef vrf RED 192.168.3.0/24 detail
192.168.3.0/24, epoch 0
  QOS: Precedence routine (0)
  dflt local label info: other/22 [0x2] <-- VPNv4 label associated with the local prefix
  nexthop 10.0.0.1 GigabitEthernet1/0/1

*** FMAN RP VPNv4 Label Programming***
C9300-PE-1#show platform software mpls switch active r0 eos index 24 <-- Utilize the objid from the FED command 


EOS Choice 0x18, Number of paths: 2
  Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
  Next Object Index: 0,0x17
  OM handle: 0x3480631760

***FMAN FP VPNv4 Label Programming***
C9300-PE-1#show platform software mpls switch active f0 eos index 24 <-- Utilize the objid from the FED command 


EOS Choice 0x18, Number of paths: 2
  Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
  Next Object Index: 0,0x17
  aom id: 5748, CPP handle: 0xdeadbeef (created), flags: 0 <-- Utilized in subsequent command
  
C9300-PE-1#show platform software object-manager switch active f0 object 5748 <-- Utilize the aom id from previous command 
Object identifier: 5748
  Description: EOS Choice 0x18
  Status: Done, Epoch: 0, Client data: 0x63150908

C9300-PE-1#show platform software object-manager switch active f0 object 5748 parents <-- Utilize the aom id
Object identifier: 7
  Description: Special Object adj_drop
  Status: Done

Object identifier: 5746
  Description: label 0x17
  Status: Done

***FED VPNv4 Label Programming***
C9300-PE-1#show platform software fed switch active mpls forwarding label 22 detail
 LENTRY:label:22 nobj:(EOS, 24) lentry_hdl:0x800000a
   modify_cnt:1 backwalk_cnt:0
   lspa_handle:0
   AAL: id:134217738 lbl:22
        eos0:[adj_hdl:0, hw_hdl:0x7fa4c4d72e08]
        eos1:[adj_hdl:0x6e00003e, hw_hdl:0x7fa4c4d72c58]
        deagg_vrf_id = 0 lspa_handle:0
   EOS:objid:24 local_label:0 flags:0:() pdflags:0 <-- Utilized in previous commands 
      nobj0:(ADJ SPECIAL,DROP 0), nobj1:(LABEL, 23) modify:0 bwalk:0
      LABEL:objid:23 link_type:IP local_label:22 outlabel:(1048577, 0)
          flags:0xc:(UHP,POP,) pdflags:0x2:(INSTALL_HW_OK,) adj_handle:0x6e00003e
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:1845493822 lbl:0 smac:a0f8.4911.d1e4 dmac:0072.78c8.06e4
               sub_type:0 link_type:0 adj_flags:0x2 label_type:1 rewrite_type:POP2IP(135)
               vlan_id:0 vrf_id:0 ri:0x7fa4c4a81af8, ri_id:0x44 phdl:0xf1000024, ref_cnt:1
               si:0x7fa4c4d83da8, si_id:0x4012, di_id:0x5338
      ADJ:objid:113 {link_type:IP ifnum:0x35, si:0x2000003a, IPv4:        10.0.0.1 }

验证C9300-PE-2 VPNv4标签：

检查PE的本地前缀，而不是远程前缀

***Software VPNv4 Label Programming***
C9300-PE-2#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.0/24, epoch 0
  QOS: Precedence routine (0)
  dflt local label info: other/21 [0x2] <-- VPNv4 label associated with local prefix 
  nexthop 10.0.0.22 GigabitEthernet2/0/1

*** FMAN RP VPNv4 Label Programming***  
C9300-PE-2#show platform software mpls switch active r0 eos index 61 <-- Use the objid from the FED command


EOS Choice 0x3d, Number of paths: 2
  Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
  Next Object Index: 0,0x3b
  OM handle: 0x348063f2f8

*** FMAN FP VPNv4 Label Programming*** 
C9300-PE-2#show platform software mpls switch active f0 eos index 61 <-- Use the objid from the FED command


EOS Choice 0x3d, Number of paths: 2
  Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
  Next Object Index: 0,0x3b
  aom id: 3541, CPP handle: 0xdeadbeef (created), flags: 0 <-- Utilized in subsequent command 

C9300-PE-2#show platform software object-manager switch active f0 object 3541 <-- Use the aom id from previous command
Object identifier: 3541
  Description: EOS Choice 0x3d
  Status: Done, Epoch: 0, Client data: 0x11079188
  
C9300-PE-2#show platform software object-manager switch active f0 object 3541 parents <-- Use the aom id from previous command
Object identifier: 7
  Description: Special Object adj_drop
  Status: Done

Object identifier: 3540
  Description: label 0x3b
  Status: Done

*** FED VPNv4 Label Programming*** 
C9300-PE-2#show platform software fed switch active mpls forwarding label 21 detail
 LENTRY:label:21 nobj:(EOS, 61) lentry_hdl:0x69000009
   modify_cnt:3 backwalk_cnt:0
   lspa_handle:0
   AAL: id:1761607689 lbl:21
        eos0:[adj_hdl:0, hw_hdl:0x7fe8f8a71bd8]
        eos1:[adj_hdl:0x49000040, hw_hdl:0x7fe8f8a72458]
        deagg_vrf_id = 0 lspa_handle:0
   EOS:objid:61 local_label:0 flags:0:() pdflags:0 <-- Utilized in previous commands 
      nobj0:(ADJ SPECIAL,DROP 0), nobj1:(LABEL, 59) modify:0 bwalk:0
      LABEL:objid:59 link_type:IP local_label:21 outlabel:(1048577, 0)
          flags:0xc:(UHP,POP,) pdflags:0x2:(INSTALL_HW_OK,) adj_handle:0x49000040
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:1224736832 lbl:0 smac:70d3.79be.ae42 dmac:0072.78c8.c9c2
               sub_type:0 link_type:0 adj_flags:0x2 label_type:1 rewrite_type:POP2IP(135)
               vlan_id:0 vrf_id:0 ri:0x7fe8f8a8ab98, ri_id:0x44 phdl:0xf1000024, ref_cnt:1
               si:0x7fe8f8a6ae08, si_id:0x4006, di_id:0x5338
      ADJ:objid:25 {link_type:IP ifnum:0x35, si:0x800003e, IPv4:       10.0.0.22 }

LDP标签编程

下一节介绍MPLS路由器、C9300-PE-1、C9500-P和C9300-PE-2上的LDP标签编程。

LDP（外部）标签是MPLS网络标签交换数据包的方式。验证通告给远程PE的本地LDP标签，不验证远程LDP标签。

C9300-PE-1 LDP标签编程：

验证通告到远程PE的本地LDP标签，不验证远程LDP标签。从FED的角度检查标签，然后返回到FMAN RP和FMAN FP。

***Software LDP Label Programming***
C9300-PE-1#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         Pop Label  192.168.1.3/32   0             Gi1/0/2    10.0.0.6
18         Pop Label  10.0.0.12/30     0             Gi1/0/2    10.0.0.6
19         17         192.168.1.4/32   0             Gi1/0/2    10.0.0.6 <-- LDP Label 19 is advertised to Remote PE 192.168.1.4, validate LDP label 19
20         No Label   10.0.0.0/30[V]   1890          aggregate/RED
22         No Label   192.168.3.0/24[V]   \
                                       1982          Gi1/0/1    10.0.0.1

***FMAN RP LDP Label Programming***
C9300-PE-1#show platform software mpls switch active r0 label index 59


Label OCE 0x3b -> OBJ_ADJACENCY (0x46)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x34805f3dc8

***FMAN FP LDP Label Programming***
C9300-PE-1#show platform software mpls switch active f0 label index 59


Label OCE 0x3b -> OBJ_ADJACENCY (0x46)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 7065, CPP handle: 0xdeadbeef (created)

C9300-PE-1#show platform software object-manager switch active f0 object 7065
Object identifier: 7065
  Description: label 0x3b
  Status: Done, Epoch: 0, Client data: 0x63152218


C9300-PE-1#show platform software object-manager switch active f0 object 7065 parents
Object identifier: 511
  Description: adj 0x46, Flags None
  Status: Done
                                       
***FED LDP Label Programming***
C9300-PE-1#show platform software fed switch active mpls forwarding label 19 detail
 LENTRY:label:19 nobj:(LABEL, 59) lentry_hdl:0xef000007
   modify_cnt:7 backwalk_cnt:0
   lspa_handle:0
   AAL: id:4009754631 lbl:19
        eos0:[adj_hdl:0x91000056, hw_hdl:0x7fa4c4d6cae8]
        eos1:[adj_hdl:0x91000056, hw_hdl:0x7fa4c4d6c8e8]
        deagg_vrf_id = 0 lspa_handle:0
   LABEL:objid:59 link_type:MPLS local_label:19 outlabel:(17, 0)
       flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x91000056
       unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
       bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
       AAL: id:2432696406 lbl:0 smac:a0f8.4911.d1d6 dmac:d4ad.71b5.dde4
            sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
            vlan_id:0 vrf_id:0 ri:0x7fa4c4d75fa8, ri_id:0x26 phdl:0x9f00004b, ref_cnt:1
            si:0x7fa4c4d5f6c8, si_id:0x4013, di_id:0x535f
   ADJ:objid:70 {link_type:MPLS ifnum:0x36, si:0x25000021, }

C9500 LDP标签编程：

验证通告到远程PE的本地LDP标签，不验证远程LDP标签。从FED的角度检查标签，然后返回到FMAN RP和FMAN FP。

***Software LDP Label Programming***
C9500-P#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         explicit-n 192.168.1.2/32   23409         Te1/0/1    10.0.0.5  <-- LDP label 16 is advertised to reach PE 192.168.1.2
17         explicit-n 192.168.1.4/32   23345         Te1/0/2    10.0.0.14 <-- LDP label 17 is advertised to reach PE 192.168.1.4

***FMAN RP LDP Label Programming***
C9500-P#show platform software mpls switch active r0 label index 23 <-- Use the obj id from the FED command


Label OCE 0x17 -> OBJ_ADJACENCY (0x3f)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x3480645150

***FMAN FP LDP Label Programming***
C9500-P#show platform software mpls switch active f0 label index 23 <-- Use the obj id from the FED command


Label OCE 0x17 -> OBJ_ADJACENCY (0x3f)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 654, CPP handle: 0xdeadbeef (created)

C9500-P#show platform software object-manager switch active f0 object 654 <-- Use the aom id from the previous command 
Object identifier: 654
  Description: label 0x17
  Status: Done, Epoch: 0, Client data: 0x4b41c08
  
C9500-P#show platform software object-manager switch active f0 object 654 parents <-- Use the aom id from the previous command 
Object identifier: 515
  Description: adj 0x3f, Flags None
  Status: Done

***FED LDP Label Programming***
C9500-P#show platform software fed switch active mpls forwarding label 16 detail 
 LENTRY:label:16 nobj:(LABEL, 23) lentry_hdl:0xec000004
   modify_cnt:6 backwalk_cnt:0
   lspa_handle:0
   AAL: id:3959422980 lbl:16
        eos0:[adj_hdl:0xc3000055, hw_hdl:0x7f28944be3c8]
        eos1:[adj_hdl:0xc3000055, hw_hdl:0x7f28944be1b8]
        deagg_vrf_id = 0 lspa_handle:0
   LABEL:objid:23 link_type:MPLS local_label:16 outlabel:(0, 0) <-- Utilized in previous commands
       flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xc3000055
       unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
       bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
       AAL: id:3271557205 lbl:0 smac:d4ad.71b5.dde4 dmac:a0f8.4911.d1d6
            sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
            vlan_id:0 vrf_id:0 ri:0x7f289449bf88, ri_id:0x44 phdl:0xe9000057, ref_cnt:1
            si:0x7f2894489b58, si_id:0x4009, di_id:0x1
   ADJ:objid:63 {link_type:MPLS ifnum:0x41, si:0x57000023, }

***Software LDP Label Programming***
C9500-P#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         explicit-n 192.168.1.2/32   23409         Te1/0/1    10.0.0.5
17         explicit-n 192.168.1.4/32   23345         Te1/0/2    10.0.0.14

***FMAN RP LDP Label Programming***
C9500-P#show platform software mpls switch active r0 label index 64 <-- Use the obj id from the FED command


Label OCE 0x40 -> OBJ_ADJACENCY (0x49)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x3480641d08   

***FMAN FP LDP Label Programming***   
C9500-P#show platform software mpls switch active f0 label index 64 <-- Use the obj id from the FED command


Label OCE 0x40 -> OBJ_ADJACENCY (0x49)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 657, CPP handle: 0xdeadbeef (created)

C9500-P#show platform software object-manager switch active f0 object 657 <-- Use the aom id value from previous command
Object identifier: 657
  Description: label 0x40
  Status: Done, Epoch: 0, Client data: 0x4b523f8


C9500-P#show platform software object-manager switch active f0 object 657 parents<-- Use the aom id value from previous command
Object identifier: 535
  Description: adj 0x49, Flags None
  Status: Done

***FED LDP Label Programming***   
C9500-P#show platform software fed switch active mpls forwarding label 17 detail
 LENTRY:label:17 nobj:(LABEL, 64) lentry_hdl:0x8d000005
   modify_cnt:6 backwalk_cnt:0
   lspa_handle:0
   AAL: id:2365587461 lbl:17
        eos0:[adj_hdl:0xcc000037, hw_hdl:0x7f2894480438]
        eos1:[adj_hdl:0xcc000037, hw_hdl:0x7f2894480228]
        deagg_vrf_id = 0 lspa_handle:0
   LABEL:objid:64 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Utilized in previous commands
       flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xcc000037
       unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
       bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
       AAL: id:3422552119 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71
            sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
            vlan_id:0 vrf_id:0 ri:0x7f2894498008, ri_id:0x38 phdl:0x76000058, ref_cnt:1
            si:0x7f2894498478, si_id:0x400b, di_id:0x2
   ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0x3d000027, }

C9300-PE-2 LDP标签编程：

验证通告到远程PE的本地LDP标签，不验证远程LDP标签。从FED的角度检查标签，然后返回到FMAN RP和FMAN FP。

***Software LDP Label Programming***
C9300-PE-2#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         Pop Label  192.168.1.3/32   0             Gi2/0/2    10.0.0.13
17         16         192.168.1.2/32   630           Gi2/0/2    10.0.0.13 <-- LDP label 17 is advertised to Remote PE 192.168.1.2 
18         Pop Label  10.0.0.4/30      0             Gi2/0/2    10.0.0.13
20         No Label   10.0.0.20/30[V]  1260          aggregate/RED
21         No Label   192.168.2.0/24[V]   \
                                       2070          Gi2/0/1    10.0.0.22

C9300-PE-2#show platform software mpls switch active r0 label index 82 <-- Utilize the obj id value from the FED Command


Label OCE 0x52 -> OBJ_ADJACENCY (0x46)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x10
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x348063ad00


C9300-PE-2#show platform software mpls switch active f0 label index 82 <-- Utilize the obj id value from the FED Command


Label OCE 0x52 -> OBJ_ADJACENCY (0x46)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x10
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 3624, CPP handle: 0xdeadbeef (created) <-- Used in next commands 

C9300-PE-2#show platform software object-manager switch active f0 object 3624 <-- Utilize the aom id value 
Object identifier: 3624
  Description: label 0x52
  Status: Done, Epoch: 0, Client data: 0x11071668


C9300-PE-2#show platform software object-manager switch active f0 object 3624 parents <-- Utilize the aom id value 
Object identifier: 496
  Description: adj 0x46, Flags None
  Status: Done

C9300-PE-2#show platform software fed switch active mpls forwarding label 17 detail
 LENTRY:label:17 nobj:(LABEL, 82) lentry_hdl:0x44000005
   modify_cnt:6 backwalk_cnt:0
   lspa_handle:0
   AAL: id:1140850693 lbl:17
        eos0:[adj_hdl:0x5f000032, hw_hdl:0x7fe8f8a52798]
        eos1:[adj_hdl:0x5f000032, hw_hdl:0x7fe8f8a52588]
        deagg_vrf_id = 0 lspa_handle:0
   LABEL:objid:82 link_type:MPLS local_label:17 outlabel:(16, 0) <-- Used in previous commands 
       flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x5f000032
       unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
       bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
       AAL: id:1593835570 lbl:0 smac:70d3.79be.ae71 dmac:d4ad.71b5.ddd6
            sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
            vlan_id:0 vrf_id:0 ri:0x7fe8f8a93c78, ri_id:0x3a phdl:0x9f00004b, ref_cnt:1
            si:0x7fe8f8a91188, si_id:0x4011, di_id:0x535f
   ADJ:objid:70 {link_type:MPLS ifnum:0x36, si:0xaa000021, }

场景2.在PE和P路由器之间使用ECMP的L3VPN

参考拓扑

在本例中，Catalyst 3850交换机用作CE设备，Catalyst 9300交换机用作PE设备，Stackwise虚拟中的Catalyst 9500用作P设备。EIGRP在CE和PE设备、OSPF和MPLS核心中的LDP邻接关系之间运行，PE设备之间具有iBGP VPNv4邻接关系。在MPLS核心内，PE和P设备之间有ECMP。

Catalyst MPLS L3VPN Topology 2

配置细节

C3850-CE-1的配置

hostname C3850-CE-1
!
interface Loopback0
ip address 192.168.3.1 255.255.255.0
!
interface TenGigabitEthernet1/0/1
no switchport
ip address 10.0.0.1 255.255.255.252
!
router eigrp 420
network 10.0.0.0 0.0.0.3
network 192.168.3.0 
eigrp stub connected summary
!
ip route 0.0.0.0 0.0.0.0 10.0.0.2

C9300-PE-1的配置

hostname C9300-PE-1
!
ip vrf RED
rd 69:69
route-target export 69:69
route-target import 69:69
!
mpls ldp explicit-null
!
interface Loopback0
ip address 192.168.1.2 255.255.255.255
!
interface GigabitEthernet1/0/1
no switchport
ip vrf forwarding RED
ip address 10.0.0.2 255.255.255.252
!
interface GigabitEthernet1/0/2
no switchport
ip address 10.0.0.5 255.255.255.252
!
interface GigabitEthernet1/0/3
no switchport
ip address 10.0.0.9 255.255.255.252
!
router eigrp 420
!
address-family ipv4 vrf RED
network 10.0.0.0 0.0.0.3
autonomous-system 420
exit-address-family
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
!
router bgp 69420
bgp log-neighbor-changes
neighbor 192.168.1.4 remote-as 69420
neighbor 192.168.1.4 update-source Loopback0
!
address-family vpnv4
neighbor 192.168.1.4 activate
neighbor 192.168.1.4 send-community extended
exit-address-family
!
address-family ipv4 vrf RED
redistribute eigrp 420
exit-address-family

C9500-P的配置

hostname C9500-P
!
interface Loopback0
ip address 192.168.1.3 255.255.255.255
!
interface TenGigabitEthernet1/0/1
no switchport
ip address 10.0.0.6 255.255.255.252
!
interface TenGigabitEthernet1/0/2
no switchport
ip address 10.0.0.13 255.255.255.252
!
interface TenGigabitEthernet2/0/1
no switchport
ip address 10.0.0.10 255.255.255.252
!
interface TenGigabitEthernet2/0/2
no switchport
ip address 10.0.0.17 255.255.255.252
!
router ospf 420
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig

C9300-PE-2的配置

hostname C9300-PE-2
!
ip vrf RED
rd 69:69
route-target export 69:69
route-target import 69:69
!
mpls ldp explicit-null
!
interface Loopback0
ip address 192.168.1.4 255.255.255.255
!
interface GigabitEthernet2/0/1
no switchport
ip vrf forwarding RED
ip address 10.0.0.21 255.255.255.252
!
interface GigabitEthernet2/0/2
no switchport
ip address 10.0.0.14 255.255.255.252
!
interface GigabitEthernet2/0/3
no switchport
ip address 10.0.0.18 255.255.255.252
!
router eigrp 400
!
address-family ipv4 vrf RED
network 10.0.0.20 0.0.0.3
autonomous-system 400
exit-address-family
!
router ospf 420
passive-interface GigabitEthernet2/0/24
network 0.0.0.0 255.255.255.255 area 0
mpls ldp autoconfig
!
router bgp 69420
bgp log-neighbor-changes
neighbor 192.168.1.2 remote-as 69420
neighbor 192.168.1.2 update-source Loopback0
!
address-family vpnv4
neighbor 192.168.1.2 activate
neighbor 192.168.1.2 send-community extended
exit-address-family
!
address-family ipv4 vrf RED
redistribute eigrp 400
exit-address-family

C3850-CE-2的配置

hostname C3850-CE-2
!
interface Loopback0
ip address 192.168.2.1 255.255.255.0
!
interface TenGigabitEthernet2/0/1
no switchport
ip address 10.0.0.22 255.255.255.252
!
router eigrp 400
network 10.0.0.20 0.0.0.3
network 192.168.2.0 
eigrp stub connected summary
!
ip route 0.0.0.0 0.0.0.0 10.0.0.21

基本验证

在验证MPLS编程之前，需要验证的基本要求有：

验证PE到PE的连接是否存在
验证PE之间的标签交换路径(LSP)
验证PE之间的BGPv4邻接
验证VPNv4和LDP标签
验证MPLS转发表

验证PE到PE的连接

您可以从本地环回对远程PE环回和源执行ping操作，但这不会确认MPLS标签交换路径(LSP)是否良好，因为环回IP地址在底层通告。

注意: PE到PE MP-BGP VPNv4邻接通过各自的Loopback0接口实现。

C9300-PE-1#ping 192.168.1.4 source 192.168.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.4, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

C9300-PE-1#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
  Known via "ospf 420", distance 110, metric 3, type intra area
  Last update from 10.0.0.10 on GigabitEthernet1/0/3, 18:39:30 ago
  Routing Descriptor Blocks:
    10.0.0.10, from 192.168.1.4, 18:39:30 ago, via GigabitEthernet1/0/3
      Route metric is 3, traffic share count is 1
  * 10.0.0.6, from 192.168.1.4, 18:39:30 ago, via GigabitEthernet1/0/2
      Route metric is 3, traffic share count is 1

验证LSP

您可以使用从PE到PE环回的MPLS跟踪路由来验证LSP和沿路径的所有MPLS LDP标签。

C9300-PE-1#traceroute mpls ipv4 192.168.1.4/32 source 192.168.1.2
Tracing MPLS Label Switched Path to 192.168.1.4/32, timeout is 2 seconds

Codes: '!' - success, 'Q' - request not sent, '.' - timeout,
  'L' - labeled output interface, 'B' - unlabeled output interface,
  'D' - DS Map mismatch, 'F' - no FEC mapping, 'f' - FEC mismatch,
  'M' - malformed request, 'm' - unsupported tlvs, 'N' - no label entry,
  'P' - no rx intf label prot, 'p' - premature termination of LSP,
  'R' - transit router, 'I' - unknown upstream index,
  'l' - Label switched with FEC change, 'd' - see DDMAP for return code,
  'X' - unknown return code, 'x' - return code 0

Type escape sequence to abort.
  0 10.0.0.5 MRU 1500 [Labels: 17 Exp: 0]
L 1 10.0.0.6 MRU 1500 [Labels: explicit-null Exp: 0] 7 ms
! 2 10.0.0.18 1 ms

如果您无权访问CE或CE后面的设备，并且想要证明VPNv4和LDP标签实施/处置成功，则可以尝试从PE上VRF中面向CE的接口ping远程PE上VRF中面向CE的接口。

C9300-PE-1#ping vrf RED 10.0.0.21 source 10.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.21, timeout is 2 seconds:
Packet sent with a source address of 10.0.0.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

验证PE之间的BGP VPNv4邻接

C9300-PE-1#show bgp vpnv4 unicast all neighbors 192.168.1.4
BGP neighbor is 192.168.1.4,  remote AS 69420, internal link
  BGP version 4, remote router ID 192.168.1.4
  BGP state = Established, up for 18:40:49
  Last read 00:00:40, last write 00:00:47, hold time is 180, keepalive interval is 60 seconds
  Neighbor sessions:
    1 active, is not multisession capable (disabled)
  Neighbor capabilities:
    Route refresh: advertised and received(new)
    Four-octets ASN Capability: advertised and received
    Address family IPv4 Unicast: advertised and received
    Address family VPNv4 Unicast: advertised and received
    Enhanced Refresh Capability: advertised and received
    Multisession Capability:
    Stateful switchover support enabled: NO for session 1
  Message statistics:
    InQ depth is 0
    OutQ depth is 0

                         Sent       Rcvd
    Opens:                  1          1
    Notifications:          0          0
    Updates:                4          4
    Keepalives:          1237       1233
    Route Refresh:          0          0
    Total:               1242       1238
  Do log neighbor state changes (via global configuration)
  Default minimum time between advertisement runs is 0 seconds
<snip>

C9300-PE-2#show bgp vpnv4 unicast all neighbors 192.168.1.2
BGP neighbor is 192.168.1.2,  remote AS 69420, internal link
  BGP version 4, remote router ID 192.168.1.2
  BGP state = Established, up for 18:41:36
  Last read 00:00:42, last write 00:00:32, hold time is 180, keepalive interval is 60 seconds
  Neighbor sessions:
    1 active, is not multisession capable (disabled)
  Neighbor capabilities:
    Route refresh: advertised and received(new)
    Four-octets ASN Capability: advertised and received
    Address family IPv4 Unicast: advertised and received
    Address family VPNv4 Unicast: advertised and received
    Enhanced Refresh Capability: advertised and received
    Multisession Capability:
    Stateful switchover support enabled: NO for session 1
  Message statistics:
    InQ depth is 0
    OutQ depth is 0

                         Sent       Rcvd
    Opens:                  1          1
    Notifications:          0          0
    Updates:                4          4
    Keepalives:          1234       1238
    Route Refresh:          0          0
    Total:               1239       1243
  Do log neighbor state changes (via global configuration)
  Default minimum time between advertisement runs is 0 seconds

远程PE VPNv4邻接关系已启用，且已收到前缀

C9300-PE-1#show bgp vpnv4 unicast all summary
BGP router identifier 192.168.1.2, local AS number 69420
BGP table version is 7, main routing table version 7
4 network entries using 1024 bytes of memory
4 path entries using 544 bytes of memory
4/4 BGP path/bestpath attribute entries using 1216 bytes of memory
4 BGP extended community entries using 1000 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 3784 total bytes of memory
BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs
4 networks peaked at 18:49:56 Jun 23 2021 UTC (18:41:06.070 ago)

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
192.168.1.4     4        69420    1240    1244        7    0    0 18:41:59        2

C9300-PE-2#show bgp vpnv4 unicast all summary
BGP router identifier 192.168.1.4, local AS number 69420
BGP table version is 7, main routing table version 7
4 network entries using 1024 bytes of memory
4 path entries using 544 bytes of memory
4/4 BGP path/bestpath attribute entries using 1216 bytes of memory
4 BGP extended community entries using 1000 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 3784 total bytes of memory
BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs
4 networks peaked at 18:49:37 Jun 23 2021 UTC (18:41:06.851 ago)

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
192.168.1.2     4        69420    1244    1240        7    0    0 18:42:17        2

验证特定VRF中交换的前缀

C9300-PE-1#show ip bgp vpnv4 vrf RED
BGP table version is 7, local router ID is 192.168.1.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
              t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 69:69 (default for vrf RED)
 *>   10.0.0.0/30      0.0.0.0                  0         32768 ?
 *>i  10.0.0.20/30     192.168.1.4              0    100      0 ?
 *>i  192.168.2.0      192.168.1.4         130816    100      0 ?
 *>   192.168.3.0      10.0.0.1            130816         32768 ?

C9300-PE-2#show ip bgp vpnv4 vrf RED
BGP table version is 7, local router ID is 192.168.1.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
              t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

     Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 69:69 (default for vrf RED)
 *>i  10.0.0.0/30      192.168.1.2              0    100      0 ?
 *>   10.0.0.20/30     0.0.0.0                  0         32768 ?
 *>   192.168.2.0      10.0.0.22           130816         32768 ?
 *>i  192.168.3.0      192.168.1.2         130816    100      0 ?

验证VPNv4和LDP标签

C9300-PE-1#show ip bgp vpnv4 vrf RED labels
   Network          Next Hop      In label/Out label
Route Distinguisher: 69:69 (RED)
   10.0.0.0/30      0.0.0.0         20/nolabel(RED)
   10.0.0.20/30     192.168.1.4     nolabel/20
   192.168.2.0      192.168.1.4     nolabel/21 <-- VPNv4 label that is be imposed to reach 192.168.20
   192.168.3.0      10.0.0.1        21/nolabel

C9300-PE-1#show ip route vrf RED 192.168.2.1

Routing Table: RED
Routing entry for 192.168.2.0/24
  Known via "bgp 69420", distance 200, metric 130816, type internal
  Last update from 192.168.1.4 18:41:56 ago
  Routing Descriptor Blocks:
  * 192.168.1.4 (default), from 192.168.1.4, 18:41:56 ago
      Route metric is 130816, traffic share count is 1
      AS Hops 0
      MPLS label: 21 <-- VPNv4 label that matches the previous output 
      MPLS Flags: MPLS Required
      
C9300-PE-2#show ip bgp vpnv4 vrf RED labels
   Network          Next Hop      In label/Out label
Route Distinguisher: 69:69 (RED)
   10.0.0.0/30      192.168.1.2     nolabel/20
   10.0.0.20/30     0.0.0.0         20/nolabel(RED)
   192.168.2.0      10.0.0.22       21/nolabel <-- VPNv4 label that is advertised to reach 192.168.2.0
   192.168.3.0      192.168.1.2     nolabel/21


C9300-PE-2#show ip route vrf RED 192.168.2.1

Routing Table: RED
Routing entry for 192.168.2.0/24
  Known via "eigrp 400", distance 90, metric 130816, precedence routine (0), type internal
  Redistributing via eigrp 400, bgp 69420
  Advertised by bgp 69420
  Last update from 10.0.0.22 on GigabitEthernet2/0/1, 18:45:04 ago
  Routing Descriptor Blocks:
  * 10.0.0.22, from 10.0.0.22, 18:45:04 ago, via GigabitEthernet2/0/1 <-- CE-facing interface in the VRF 
      Route metric is 130816, traffic share count is 1
      Total delay is 5010 microseconds, minimum bandwidth is 1000000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1

验证使用的LDP标签

C9300-PE-1#show mpls forwarding-table 192.168.1.4
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
19         17         192.168.1.4/32   0             Gi1/0/2    10.0.0.6  <-- 17 is the LDP label imposed to reach PE at 192.168.1.4 through Gi1/0/2 
           17         192.168.1.4/32   0             Gi1/0/3    10.0.0.10 <-- 17 is the LDP label imposed to reach PE at 192.168.1.4 through Gi1/0/3

C9300-PE-2#show mpls forwarding-table 192.168.1.2
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
17         16         192.168.1.2/32   0             Gi2/0/2    10.0.0.13 <-- 16 is the LDP label imposed to reach PE at 192.168.1.2 through Gi2/0/2
           16         192.168.1.2/32   0             Gi2/0/3    10.0.0.17 <-- 16 is the LDP label imposed to reach PE at 192.168.1.2 through Gi2/0/3

验证MPLS转发表

C9300-PE-1#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         Pop Label  192.168.1.3/32   0             Gi1/0/2    10.0.0.6
           Pop Label  192.168.1.3/32   0             Gi1/0/3    10.0.0.10
17         Pop Label  10.0.0.16/30     0             Gi1/0/2    10.0.0.6
           Pop Label  10.0.0.16/30     0             Gi1/0/3    10.0.0.10
18         Pop Label  10.0.0.12/30     0             Gi1/0/2    10.0.0.6
           Pop Label  10.0.0.12/30     0             Gi1/0/3    10.0.0.10
19         17         192.168.1.4/32   0             Gi1/0/2    10.0.0.6
           17         192.168.1.4/32   0             Gi1/0/3    10.0.0.10
20         No Label   10.0.0.0/30[V]   630           aggregate/RED
21         No Label   192.168.3.0/24[V]   \
                                       0             Gi1/0/1    10.0.0.1

C9300-PE-2#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         Pop Label  192.168.1.3/32   0             Gi2/0/2    10.0.0.13
           Pop Label  192.168.1.3/32   0             Gi2/0/3    10.0.0.17
17         16         192.168.1.2/32   0             Gi2/0/2    10.0.0.13
           16         192.168.1.2/32   0             Gi2/0/3    10.0.0.17
18         Pop Label  10.0.0.4/30      0             Gi2/0/2    10.0.0.13
           Pop Label  10.0.0.4/30      0             Gi2/0/3    10.0.0.17
19         Pop Label  10.0.0.8/30      0             Gi2/0/2    10.0.0.13
           Pop Label  10.0.0.8/30      0             Gi2/0/3    10.0.0.17
20         No Label   10.0.0.20/30[V]  630           aggregate/RED
21         No Label   192.168.2.0/24[V]   \
                                       0             Gi2/0/1    10.0.0.22

确认用于到达VRF中每个给定前缀的内部(VPNv4)和外部(LDP)标签

C9300-PE-1#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.0/24, epoch 0, flags [rib defined all labels]
  recursive via 192.168.1.4 label 21 <-- VPNv4 label
    nexthop 10.0.0.6 GigabitEthernet1/0/2 label 17-(local:19) <-- 17 is the LDP label that is imposed to reach the remote PE, 19 is the local LDP label advertised to the P router 
    nexthop 10.0.0.10 GigabitEthernet1/0/3 label 17-(local:19)<-- 17 is the LDP label that is imposed to reach the remote PE, 19 is the local LDP label advertised to the P router 
    
C9300-PE-2#show ip cef vrf RED 192.168.3.0/24 detail
192.168.3.0/24, epoch 0, flags [rib defined all labels]
  recursive via 192.168.1.2 label 21 <-- VPNv4 label
    nexthop 10.0.0.13 GigabitEthernet2/0/2 label 16-(local:17) <-- 16 is the LDP label that is imposed to reach the remote PE, 17 is the local LDP label advertised to the P router 
    nexthop 10.0.0.17 GigabitEthernet2/0/3 label 16-(local:17) <-- 16 is the LDP label that is imposed to reach the remote PE, 17 is the local LDP label advertised to the P router

验证Object-Manager统计信息：

在理想情况下，没有挂起的对象

C9300-PE-1#show platform software object-manager switch active f0 statistics
Forwarding Manager Asynchronous Object Manager Statistics

Object update: Pending-issue: 0, Pending-acknowledgement: 0
Batch begin:   Pending-issue: 0, Pending-acknowledgement: 0
Batch end:     Pending-issue: 0, Pending-acknowledgement: 0
Command:       Pending-acknowledgement: 0
Total-objects: 491
Stale-objects: 0
Resolve-objects: 0
Childless-delete-objects: 0
Error-objects: 0
Paused-types: 0

9500-P#show platform software object-manager switch active f0 statistics
Forwarding Manager Asynchronous Object Manager Statistics

Object update: Pending-issue: 0, Pending-acknowledgement: 0
Batch begin:   Pending-issue: 0, Pending-acknowledgement: 0
Batch end:     Pending-issue: 0, Pending-acknowledgement: 0
Command:       Pending-acknowledgement: 0
Total-objects: 491
Stale-objects: 0
Resolve-objects: 0
Childless-delete-objects: 0
Error-objects: 0
Paused-types: 0

C9300-PE-2#show platform software object-manager switch active f0 statistics
Forwarding Manager Asynchronous Object Manager Statistics

Object update: Pending-issue: 0, Pending-acknowledgement: 0
Batch begin:   Pending-issue: 0, Pending-acknowledgement: 0
Batch end:     Pending-issue: 0, Pending-acknowledgement: 0
Command:       Pending-acknowledgement: 0
Total-objects: 482
Stale-objects: 0
Resolve-objects: 0
Childless-delete-objects: 0
Error-objects: 0
Paused-types: 0

前缀编程

下一节介绍MPLS路由器、C9300-PE-1、C9500-P和C9300-PE-2上的前缀编程。

C9300-PE-1前缀编程

***Software Prefix Programming***
C9300-PE-1#show ip route vrf RED 192.168.2.1

Routing Table: RED
Routing entry for 192.168.2.0/24
  Known via "bgp 69420", distance 200, metric 130816, type internal
  Last update from 192.168.1.4 19:21:45 ago
  Routing Descriptor Blocks:
  * 192.168.1.4 (default), from 192.168.1.4, 19:21:45 ago <-- Remote PE reachable in the global routing table 
      Route metric is 130816, traffic share count is 1
      AS Hops 0
      MPLS label: 21 <-- VPNv4 label 
      MPLS Flags: MPLS Required

C9300-PE-1#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
  Known via "ospf 420", distance 110, metric 3, type intra area
  Last update from 10.0.0.10 on GigabitEthernet1/0/3, 19:23:17 ago
  Routing Descriptor Blocks:
    10.0.0.10, from 192.168.1.4, 19:23:17 ago, via GigabitEthernet1/0/3 <-- Next-hop to reach 192.168.1.4
      Route metric is 3, traffic share count is 1
  * 10.0.0.6, from 192.168.1.4, 19:23:17 ago, via GigabitEthernet1/0/2  <-- Next-hop to reach 192.168.1.4
      Route metric is 3, traffic share count is 1

***FMAN RP Prefix Programming***
C9300-PE-1#show ip vrf detail
VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID is important in subsequent command 
  Old CLI format, supports IPv4 only
  Flags: 0xC
  Interfaces:
    Gi1/0/1
Address family ipv4 unicast (Table ID = 0x2):
  Flags: 0x0
  Export VPN route-target communities
    RT:69:69
  Import VPN route-target communities
    RT:69:69
  No import route-map
  No global export route-map
  No export route-map
  VRF label distribution protocol: not configured
  VRF label allocation mode: per-prefix

C9300-PE-1#show platform software ip switch active r0 cef table index 2 prefix 192.168.2.0/24 <-- Index value is the VRF ID from previous command 
Forwarding Table

Prefix/Len                      Next Object      Index
----------------------------------------------------------------
192.168.2.0/24                  OBJ_LABEL        0x78
           

C9300-PE-1#show platform software mpls switch active r0 label index 0x78 <-- Utilize the Index value from previous command 


Label OCE 0x78 -> OBJ_LOADBALANCE (0x70) <-- Utilized in next command 
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x15
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x3480644d88

C9300-PE-1#show platform software loadinfo switch active r0 index 0x70 <-- Utilize the OBJ_LOADBALANCE value from previous command 
Number of loadinfo objects: 8

Index: 0x70, Flags: unknown, Hash Algorithm: , Number of Paths: 2, Number of buckets: 16
  Anti-polarising Factor: 0xf4a19ba0
  Next Object Type: OBJ_LABEL, OBJ_LABEL
  Next obj handle: 0x6e, 0x6f
  Hash Buckets: 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1
  Color Buckets Map: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
  OM handle: 0x3480641fb8

C9300-PE-1#show platform software mpls switch active r0 label index 0x6e <-- Utilize the obj handle value from previous command


Label OCE 0x6e -> OBJ_ADJACENCY (0x4b)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x34806420d0

C9300-PE-1#show platform software mpls switch active r0 label index 0x6f <-- Utilize the obj handle value from previous command 


Label OCE 0x6f -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x3480642268

C9300-PE-1#show platform software adjacency switch active r0 index 0x4b <-- Utilize the OBJ_ADJACENCY value from previous command 
Number of adjacency objects: 10

Adjacency id: 0x4b (75)
  Interface: GigabitEthernet1/0/2, IF index: 54, Link Type: MCP_LINK_TAG
  Encap: d4:ad:71:b5:dd:e4:a0:f8:49:11:d1:d6:88:47 <-- MAC ending in DDE4 is the DMAC, MAC ending in D1D6 is SMAC, 8847 is MPLS ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.6 <-- Next-hop IP address 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  OM handle: 0x34806375f8

C9300-PE-1#show platform software adjacency switch active r0 index 0x4e <-- Utilize the OBJ_ADJACENCY value from previous command 
Number of adjacency objects: 10

Adjacency id: 0x4e (78)
  Interface: GigabitEthernet1/0/3, IF index: 55, Link Type: MCP_LINK_TAG
  Encap: d4:ad:71:b5:dd:c2:a0:f8:49:11:d1:d8:88:47 <-- MAC ending DDC2 is the DMAC, MAC ending in D1D8 is the SMAC, 8847 is the MPLS ETPYE 
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.10 <-- Next-hop IP address 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  OM handle: 0x3480638200

***FMAN FP Prefix Programming***
C9300-PE-1#show ip vrf detail
VRF RED (VRF Id = 2); default RD 69:69; default VPNID 
  Old CLI format, supports IPv4 only
  Flags: 0xC
  Interfaces:
    Gi1/0/1
Address family ipv4 unicast (Table ID = 0x2):
  Flags: 0x0
  Export VPN route-target communities
    RT:69:69
  Import VPN route-target communities
    RT:69:69
  No import route-map
  No global export route-map
  No export route-map
  VRF label distribution protocol: not configured
  VRF label allocation mode: per-prefix

C9300-PE-1#show platform software ip switch active f0 cef table index 2 prefix 192.168.2.0/24 detail <-- Index value is the VRF ID from previous command 
Forwarding Table

192.168.2.0/24 -> OBJ_LABEL (0x78), urpf: 118
Prefix Flags: unknown
aom id: 618, HW handle: (nil) (created)

C9300-PE-1#show platform software mpls switch active f0 label index 0x78 <-- Use the OBJ_LABEL value from previous command 


Label OCE 0x78 -> OBJ_LOADBALANCE (0x70)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x15
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 617, CPP handle: 0xdeadbeef (created)

C9300-PE-1#show platform software object-manager switch active f0 object 617 parents <-- Use the aom id from previous command 
Object identifier: 600
  Description: LB 0x70
  Status: Done

C9300-PE-1#show platform software loadinfo switch active f0 index 0x70 <-- Use the LB value from previous command 
Number of loadinfo objects: 8

Index: 0x70, Flags: unknown, Hash Algorithm: , Number of Paths: 2, Number of buckets: 16
  Anti-polarising Factor: 0xf4a19ba0
  Next Object Type: OBJ_LABEL, OBJ_LABEL
  Next obj handle: 0x6e, 0x6f
  Hash Buckets: 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1
  Color Buckets Map: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
  aom id: 600, HW handle: (nil)
  
C9300-PE-1#show platform software mpls switch active f0 label index 0x6e <-- Use the obj handle values from previous commands


Label OCE 0x6e -> OBJ_ADJACENCY (0x4b)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 598, CPP handle: 0xdeadbeef (created)


C9300-PE-1#show platform software mpls switch active f0 label index 0x6f <-- Use the obj handle values from previous command


Label OCE 0x6f -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 599, CPP handle: 0xdeadbeef (created)

C9300-PE-1#show platform software adjacency switch active f0 index 0x4b <-- Use the OBJ_ADJACENCY value from previous command
Number of adjacency objects: 10

Adjacency id: 0x4b (75)
  Interface: GigabitEthernet1/0/2, IF index: 54, Link Type: MCP_LINK_TAG
  Encap: d4:ad:71:b5:dd:e4:a0:f8:49:11:d1:d6:88:47
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.6
  IP FRR MCP_ADJ_IPFRR_NONE 0
  aom id: 531, HW handle: (nil) (created)

C9300-PE-1#show platform software adjacency switch active f0 index 0x4e <-- Use the OBJ_ADJACENCY value from previous command
Number of adjacency objects: 10

Adjacency id: 0x4e (78)
  Interface: GigabitEthernet1/0/3, IF index: 55, Link Type: MCP_LINK_TAG
  Encap: d4:ad:71:b5:dd:c2:a0:f8:49:11:d1:d8:88:47
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.10
  IP FRR MCP_ADJ_IPFRR_NONE 0
  aom id: 535, HW handle: (nil) (created)

***FED Prefix Programming***
C9300-PE-1#show platform software fed switch active ip route vrf-name RED 192.168.2.0/24
vrf   dest                                          htm            flags   SGT   DGID MPLS Last-modified
---   ----                                          ---            -----   ---   ---- ---- ------------------------
2     192.168.2.0/24                                0x7fbae8d86228 0x0     0     0   lspa0x2  2021/06/23 18:50:13.079 <-- HTM value significant for next command
  FIB: prefix_hdl:0x50000026, mpls_ecr_prefix_hdl:0
  ========== OCE chain =====
  LABEL:objid:120 link_type:IP local_label:1048577 outlabel:(21, 0) <-- VPNv4 label 
      flags:0x1:(REAL,) pdflags:0x80:(INSTALL_HW_OK,RECIR_ADJ,) adj_handle:0xcb00003c <-- adj_handle and local_adj_hdl values must match 
      unsupported recursion:0 olbl_changed 0 local_adj:1 modify_cnt:0
      bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
      AAL: id:3405774908 lbl:19 smac:0000.0000.0000 dmac:0000.0000.0000 <-- Label 19 matches the local transport label
           sub_type:0 link_type:0 adj_flags:0x10 label_type:0 rewrite_type:PSH2(121)
           vlan_id:0 vrf_id:0 ri:0x7fbae8d73648, ri_id:0x46 phdl:0, ref_cnt:2 <-- ri_id and ri_idx values must match
           si:0x7fbae8d834d8, si_id:0xb6, di_id:0x5013
  LB:obj_id:112 link_type:IP num_choices:2 Flags:0
      mpls_ecr:1 local_label:19 path_inhw:2 ecrh:0x7d000002 old_ecrh:0
      modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0
      bwalk:[req:0 in_prog:0 nested:0]
    AAL: ecr:id:2097152002 af:0 ecr_type:0 ref:7 ecrh:0x7fbae8a99268(28:2)
    hwhdl:3903427176 ::0x7fbae8a98b98,0x7fbae8a9ad48,0x7fbae8a98b98,0x7fbae8a9ad48
  Sw Enh ECR scale: objid:112 llabel:19 eos:1 #adjs:2 mixed_adj:0
     reprogram_hw:0 ecrhdl:0x7d000002 ecr_hwhdl:0x7fbae8a99268
      mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0
      ecr_adj: id:4278190135 is_mpls_adj:1 l3adj_flags:0x100000
        recirc_adj_id:1744830509
            sih:0x7fbae8a98b98(179) di_id:20499 rih:0x7fbae8a985d8(33)
        adj_lentry [eos0:0x7fbae8d7bf48 eos1:0x7fbae8d76e88]
      ecr_adj: id:1392508984 is_mpls_adj:1 l3adj_flags:0x100000
        recirc_adj_id:2013265966
            sih:0x7fbae8a9ad48(180) di_id:20499 rih:0x7fbae8a9a788(46)
        adj_lentry [eos0:0x7fbae8d7c1b8 eos1:0x7fbae8d77158]
      ecr_prefix_adj: id:2164260921 (ref:1)
         sih:0x7fbae8d7df08(181) di_id:20499 rih:0x7fbae8d7db98(68)
     LABEL:objid:110 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Label 19 is the local transport label, Label 17 is the LDP label 
         flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xff000037
         unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
         bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
         AAL: id:4278190135 lbl:0 smac:a0f8.4911.d1d6 dmac:d4ad.71b5.dde4 <-- Matches next-hop information to reach 192.168.2.0/24
              sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
              vlan_id:0 vrf_id:0 ri:0x7fbae8d78c48, ri_id:0x40 phdl:0x9f00004b, ref_cnt:1
              si:0x7fbae8d78fd8, si_id:0x4013, di_id:0x535f <-- di_id utilized in subsequent commands 
     ADJ:objid:75 {link_type:MPLS ifnum:0x36, si:0x22000023, }
     LABEL:objid:111 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Label 19 is the local transport label, Label 17 is the LDP label 
         flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x53000038
         unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
         bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
         AAL: id:1392508984 lbl:0 smac:a0f8.4911.d1d8 dmac:d4ad.71b5.ddc2 <-- Matches next-hop information to reach 192.168.2.0/24
              sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
              vlan_id:0 vrf_id:0 ri:0x7fbae8d7d0a8, ri_id:0x42 phdl:0x8400004c, ref_cnt:1
              si:0x7fbae8d7a908, si_id:0x4014, di_id:0x5360 <-- di_id utilized in subsequent commands 
     ADJ:objid:78 {link_type:MPLS ifnum:0x37, si:0x74000026, }
  ===============
  MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0xa7000002
    AAL:LSPA: id:2801795074 num_path:1 prefix_id:0x2 delete_hw_hdl_cnt:0
         cookie[64]: 15000000000000000000000000000000000000000000000000000000000000004600000000000000000000000000000000000000000000000000000000000000 status:ok
          vpn_lbl:21 local_adj_hdl:0xcb00003c hw_hdl:0x7fbae8d86018 ri_idx:0x46 <-- vpn_lbl matches the VPNv4 label, adj_handle and local_adj_hdl values must match, ri_id and ri_idx must match
  ===============

C9300-PE-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7fbae8d86228 1 <-- Utilize the HTM value from previous command
Handle:0x7fbae8d86228 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7fbae8d71f58

Detailed Resource Information (ASIC# 0)
----------------------------------------
Number of HTM Entries: 1

Entry 0: (handle 0x7fbae8d71f58)

Absolute Index: 92181
Time Stamp: 1
KEY - vrf:2 mtr:0 prefix:192.168.2.0 rcp_redirect_index:0x0
MASK - vrf:255 mtr:0 prefix:255.255.255.0 rcp_redirect_index:0x0
FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:182 destined_to_us:0 hw_stats_idx:0 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0x2
SRC-AD = learning_violation:1 need_to_learn:1  locally_connected:0 staticentryViolation:0
rpfValid:1 rpfLe:0 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:0 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0
port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0


==============================================================

C9300-PE-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x535f 0x535f <-- Utilize the di_id from the previous command
ASIC#0:

index = 0x535f
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x535f
pmap = 0x00000000 0x00000002 <-- Looking at 0x00000002, in binary that is 0000 0000 0000 0000 000 0000 0000 0010 = Port 1 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9300-PE-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x5360 0x5360 <-- Utilize the di_id from the previous command ASIC#0:
ASIC#0:

index = 0x5360
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x5360
pmap = 0x00000000 0x00000004 <-- Looking at 0x00000004, in binary that is 0000 0000 0000 0000 0000 0000 0000 0100 = Port 2 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9300-PE-1#show platform software fed switch active ifm map
Interface                 IF_ID    Inst Asic Core Port SubPort Mac  Cntx LPN  GPN  Type Active
GigabitEthernet1/0/2      0x36       1   0   1    1      0      6    7    2    2    NIF  Y <-- Port 1 is an egress port, Gi1/0/2
GigabitEthernet1/0/3      0x37       1   0   1    2      0      28   8    3    3    NIF  Y <-- Port 2 is an egress port, Gi1/0/3

C9500前缀编程

***Software Prefix Programming***
C9500-P#show ip route 192.168.1.4
Routing entry for 192.168.1.4/32
  Known via "ospf 420", distance 110, metric 2, type intra area
  Last update from 10.0.0.18 on TenGigabitEthernet2/0/2, 20:15:25 ago
  Routing Descriptor Blocks:
    10.0.0.18, from 192.168.1.4, 20:15:25 ago, via TenGigabitEthernet2/0/2 <-- Next-hop towards 192.168.1.4
      Route metric is 2, traffic share count is 1
  * 10.0.0.14, from 192.168.1.4, 20:15:25 ago, via TenGigabitEthernet1/0/2 <-- Next-hop towards 192.168.1.4
      Route metric is 2, traffic share count is 1

C9500-P#show ip cef 192.168.1.4 detail
192.168.1.4/32, epoch 4, per-destination sharing
  dflt local label info: global/17 [0x3]
  nexthop 10.0.0.14 TenGigabitEthernet1/0/2 label explicit-null-(local:17) <-- Explicit null to reach 192.168.1.4
  nexthop 10.0.0.18 TenGigabitEthernet2/0/2 label explicit-null-(local:17) <-- Explicit null to reach 192.168.1.4

***FMAN RP Prefix Programming***
C9500-P#show platform software ip switch active r0 cef prefix 192.168.1.4/32
Forwarding Table

Prefix/Len                      Next Object      Index
----------------------------------------------------------------
192.168.1.4/32                  OBJ_LOADBALANCE  0x6a

C9500-P#show platform software loadinfo switch active r0 index 0x6a <-- Use the OBJ_LOADBALANCE value from previous command 
Number of loadinfo objects: 4

Index: 0x6a, Flags: unknown, Hash Algorithm: , Number of Paths: 2, Number of buckets: 16
  Anti-polarising Factor: 0x57a70068
  Next Object Type: OBJ_LABEL, OBJ_LABEL
  Next obj handle: 0x68, 0x69
  Hash Buckets: 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1
  Color Buckets Map: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
  OM handle: 0x348064de58
  
C9500-P#show platform software mpls switch active r0 label index 0x68 <-- Use the obj handle values from the previous command


Label OCE 0x68 -> OBJ_ADJACENCY (0x49)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x348064df70

C9500-P#show platform software mpls switch active r0 label index 0x69


Label OCE 0x69 -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x348064e108
  
C9500-P#show platform software adjacency switch active r0 index 0x49 <-- Use the OBJ_ADJACENCY values from previous commands 
Number of adjacency objects: 16

Adjacency id: 0x49 (73)
  Interface: TenGigabitEthernet1/0/2, IF index: 66, Link Type: MCP_LINK_TAG
  Encap: 70:d3:79:be:ae:71:d4:ad:71:b5:dd:d6:88:47 <-- MAC ending in AE71 is the DMAC, MAC ending is B5DD is SMAC, 8847 is MPLS ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.14 <-- Next-hop IP address 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  OM handle: 0x3480647700


C9500-P#show platform software adjacency switch active r0 index 0x4e <-- Use the OBJ_ADJACENCY values from previous commands 
Number of adjacency objects: 16

Adjacency id: 0x4e (78)
  Interface: TenGigabitEthernet2/0/2, IF index: 68, Link Type: MCP_LINK_TAG
  Encap: 70:d3:79:be:ae:61:d4:ad:71:b5:dd:f1:88:47 <-- MAC ending in AE61 is DMAC, MAC ending in B5DD is SMAC, 8847 is MPLS ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.18 <-- Next-hop IP address 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  OM handle: 0x3480648f68

***FMAN FP Prefix Programming***
C9500-P#show platform software ip switch active f0 cef prefix 192.168.1.4/32
Forwarding Table

Prefix/Len                      Next Object      Index
----------------------------------------------------------------
192.168.1.4/32                  OBJ_LOADBALANCE  0x6a

C9500-P#show platform software loadinfo switch active f0 index 0x6a <-- Use the OBJ_LOADBALANCE value from previous command 
Number of loadinfo objects: 4

Index: 0x6a, Flags: unknown, Hash Algorithm: , Number of Paths: 2, Number of buckets: 16
  Anti-polarising Factor: 0x57a70068
  Next Object Type: OBJ_LABEL, OBJ_LABEL
  Next obj handle: 0x68, 0x69
  Hash Buckets: 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1
  Color Buckets Map: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
  aom id: 578, HW handle: (nil)
  
C9500-P#show platform software mpls switch active f0 label index 0x68 <-- Use the obj handle values from previous command


Label OCE 0x68 -> OBJ_ADJACENCY (0x49)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 576, CPP handle: 0xdeadbeef (created)

C9500-P#show platform software mpls switch active f0 label index 0x69 <-- Use the obj handle values from previous command


Label OCE 0x69 -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 577, CPP handle: 0xdeadbeef (created)

C9500-P#show platform software adjacency switch active f0 index 0x49 <-- Use the OBJ_ADJACENCY values from previous commands
Number of adjacency objects: 16

Adjacency id: 0x49 (73)
  Interface: TenGigabitEthernet1/0/2, IF index: 66, Link Type: MCP_LINK_TAG
  Encap: 70:d3:79:be:ae:71:d4:ad:71:b5:dd:d6:88:47 <-- MAC ending in AE71 is the DMAC, MAC ending in DDD6 is the SMAC, 8847 is the MPLS ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.14 <-- Next-hop IP address 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  aom id: 536, HW handle: (nil) (created)

C9500-P#show platform software adjacency switch active f0 index 0x4e <-- Use the OBJ_ADJACENCY values from previous commands
Number of adjacency objects: 16

Adjacency id: 0x4e (78)
  Interface: TenGigabitEthernet2/0/2, IF index: 68, Link Type: MCP_LINK_TAG
  Encap: 70:d3:79:be:ae:61:d4:ad:71:b5:dd:f1:88:47 <-- MAC ending in AE61 is the DMAC, MAC ending in DDF1 is the SMAC, 8847 is the MPLS ETYPE 
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: unknown
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.18 <-- Next-hop IP address 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  aom id: 545, HW handle: (nil) (created)

***FED Prefix Programming***
C9500-P#show platform software fed switch active ip route 192.168.1.4/32
vrf   dest                                          htm            flags   SGT   DGID MPLS Last-modified
---   ----                                          ---            -----   ---   ---- ---- ------------------------
0     192.168.1.4/32                                0x7f0b284c1118 0x0     0     0         2021/06/23 18:47:01.761 <-- HTM value important for subsequent command
  FIB: prefix_hdl:0x9b000020, mpls_ecr_prefix_hdl:0xdd00003a
  ========== OCE chain =====
  LB:obj_id:106 link_type:IP num_choices:2 Flags:0
      mpls_ecr:1 local_label:17 path_inhw:2 ecrh:0x44000002 old_ecrh:0
      modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0
      bwalk:[req:0 in_prog:0 nested:0]
    AAL: ecr:id:1140850690 af:0 ecr_type:0 ref:2 ecrh:0x7f0b284a3998(28:2)
    hwhdl:675953048 ::0x7f0b284b4268,0x7f0b284a1d78,0x7f0b284b4268,0x7f0b284a1d78
  Sw Enh ECR scale: objid:106 llabel:17 eos:1 #adjs:2 mixed_adj:0
     reprogram_hw:0 ecrhdl:0x44000002 ecr_hwhdl:0x7f0b284a3998
      mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0
      ecr_adj: id:4127195192 is_mpls_adj:1 l3adj_flags:0x100000
        recirc_adj_id:1207959601
            sih:0x7f0b284b4268(181) di_id:23709 rih:0x7f0b284b3ca8(31)
        adj_lentry [eos0:0x7f0b284c38e8 eos1:0x7f0b284cd858]
      ecr_adj: id:1157627961 is_mpls_adj:1 l3adj_flags:0x100000
        recirc_adj_id:67108914
            sih:0x7f0b284a1d78(182) di_id:23709 rih:0x7f0b284b47d8(44)
        adj_lentry [eos0:0x7f0b284c3af8 eos1:0x7f0b284cdb28]
      ecr_prefix_adj: id:3707764794 (ref:1)
         sih:0x7f0b284c5028(184) di_id:23709 rih:0x7f0b284c4c48(60)
     LABEL:objid:104 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label, 0 is the LDP label 
         flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xf6000038
         unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
         bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
         AAL: id:4127195192 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71 <-- Matches the next-hop information to reach 192.168.1.4/32
              sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
              vlan_id:0 vrf_id:0 ri:0x7f0b284ceaa8, ri_id:0x38 phdl:0x76000058, ref_cnt:1
              si:0x7f0b284ceeb8, si_id:0x400b, di_id:0x2 <-- Used in subsequent commands
     ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0x1f000028, }
     LABEL:objid:105 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label, 0 is the LDP label 
         flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x45000039
         unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
         bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
         AAL: id:1157627961 lbl:0 smac:d4ad.71b5.ddf1 dmac:70d3.79be.ae61 <-- Matches the next-hop information to reach 192.168.1.4/32
              sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
              vlan_id:0 vrf_id:0 ri:0x7f0b284c4588, ri_id:0x3a phdl:0x5500005a, ref_cnt:1
              si:0x7f0b284d0548, si_id:0x400c, di_id:0x62 <-- Used in subsequent commands
     ADJ:objid:78 {link_type:MPLS ifnum:0x44, si:0x4900002a, }
  ===============
  MPLS info: mpls_ecr_scale_prefix_adj:0xdd00003a, mpls_lspa_hdl:0
  ===============

C9500-P#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f0b284c1118 1 <-- Use the HTM value from previous command
Handle:0x7f0b284c1118 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f0b284c1328
Features sharing this resource:Cookie length: 12
04 01 a8 c0 00 00 00 d0 07 00 00 00

Detailed Resource Information (ASIC# 0)
----------------------------------------
Number of HTM Entries: 1

Entry 0: (handle 0x7f0b284c1328)

Absolute Index: 126650
Time Stamp: 1
KEY - vrf:0 mtr:0 prefix:192.168.1.4 rcp_redirect_index:0x0
MASK - vrf:0 mtr:0 prefix:0.0.0.0 rcp_redirect_index:0x0
FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:184 destined_to_us:0 hw_stats_idx:1 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0
SRC-AD = learning_violation:0 need_to_learn:0  locally_connected:0 staticentryViolation:0
rpfValid:1 rpfLe:2 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:1 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:1 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0
port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0


==============================================================

C9500-P#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x2 0x2 <-- Use the di_id values from previous command
ASIC#0:

index = 0x2
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x2
pmap = 0x00000000 0x00000002 <-- Looking at 0x00000002, in binary that is 0000 0000 0000 0000 0000 0000 0000 0010 = Port 1 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9500-P#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x62 0x62
ASIC#0:

index = 0x62
pmap = 0x00000000 0x00008000 <-- Looking at 0x00008000, in binary that is 0000 0000 0000 0000 1000 0000 0000 0000 = Port 15 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x62
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9500-P#show platform software fed switch standby ip route 192.168.1.4/32
vrf   dest                                          htm            flags   SGT   DGID MPLS Last-modified
---   ----                                          ---            -----   ---   ---- ---- ------------------------
0     192.168.1.4/32                                0x7f57c0545938 0x0     0     0         2021/06/23 18:46:51.399 <-- HTM value used in subsequent command
  FIB: prefix_hdl:0x29000020, mpls_ecr_prefix_hdl:0x8f000039
  ========== OCE chain =====
  LB:obj_id:106 link_type:IP num_choices:2 Flags:0
      mpls_ecr:1 local_label:17 path_inhw:2 ecrh:0xf1000002 old_ecrh:0
      modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0
      bwalk:[req:0 in_prog:0 nested:0]
    AAL: ecr:id:4043309058 af:0 ecr_type:0 ref:2 ecrh:0x7f57c04d2148(28:2)
    hwhdl:3226280264 ::0x7f57c0547538,0x7f57c05497d8,0x7f57c0547538,0x7f57c05497d8
  Sw Enh ECR scale: objid:106 llabel:17 eos:1 #adjs:2 mixed_adj:0
     reprogram_hw:0 ecrhdl:0xf1000002 ecr_hwhdl:0x7f57c04d2148
      mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0
      ecr_adj: id:201326647 is_mpls_adj:1 l3adj_flags:0x100000
        recirc_adj_id:3925868592
            sih:0x7f57c0547538(181) di_id:23717 rih:0x7f57c0546f18(31)
        adj_lentry [eos0:0x7f57c04c8a08 eos1:0x7f57c04d07f8]
      ecr_adj: id:738197560 is_mpls_adj:1 l3adj_flags:0x100000
        recirc_adj_id:3070230577
            sih:0x7f57c05497d8(182) di_id:23717 rih:0x7f57c0547838(44)
        adj_lentry [eos0:0x7f57c04c8c18 eos1:0x7f57c04d0ac8]
      ecr_prefix_adj: id:2399141945 (ref:1)
         sih:0x7f57c04c8788(184) di_id:23717 rih:0x7f57c04c8508(60)
     LABEL:objid:104 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label, 0 is the LDP label 
         flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xc000037
         unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
         bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
         AAL: id:201326647 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71 <-- Matches next-hop information to reach 192.168.1.4/32 
              sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
              vlan_id:0 vrf_id:0 ri:0x7f57c04d18e8, ri_id:0x38 phdl:0x76000058, ref_cnt:1
              si:0x7f57c04d1b18, si_id:0x400b, di_id:0x2 <-- di_id utilized in subsequent commands
     ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0xdf000027, }
     LABEL:objid:105 link_type:MPLS local_label:17 outlabel:(0, 0) <-- Label 17 is the local transport label, 0 is the LDP label 
         flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x2c000038
         unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
         bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
         AAL: id:738197560 lbl:0 smac:d4ad.71b5.ddf1 dmac:70d3.79be.ae61 <-- Matches next-hop information to reach 192.168.1.4/32 
              sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
              vlan_id:0 vrf_id:0 ri:0x7f57c04da418, ri_id:0x3a phdl:0x5500005a, ref_cnt:1
              si:0x7f57c04da838, si_id:0x400c, di_id:0x62 <-- di_id utilized in subsequent commands
     ADJ:objid:78 {link_type:MPLS ifnum:0x44, si:0xfa000029, }
  ===============
  MPLS info: mpls_ecr_scale_prefix_adj:0x8f000039, mpls_lspa_hdl:0
  ===============
  
C9500-P#show platform hardware fed switch standby fwd-asic resource asic all destination-index range 0x62 0x62
ASIC#0:

index = 0x62
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x62
pmap = 0x00000000 0x00000002 <-- Looking at 0x000000002, in binary that is 0000 0000 0000 0000 0000 0000 0000 0010 = Port 1 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9500-P#show platform hardware fed switch standby fwd-asic resource asic all destination-index range 0x2 0x2
ASIC#0:

index = 0x2
pmap = 0x00000000 0x00008000 <-- Looking at 0x00008000, in binary that is 0000 0000 0000 0000 1000 0000 0000 0000 = Port 15 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x2
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9500-P#show platform software fed switch active ifm mappings
Interface                 IF_ID    Inst Asic Core Port SubPort Mac  Cntx LPN  GPN  Type Active
TenGigabitEthernet1/0/2   0x42       1   0   1    1      0      10   1    2    2    NIF  Y <-- Port 1 is an egres port, TenGi1/0/2
TenGigabitEthernet1/0/16  0x18       0   0   0    15     0      8    11   16   2360 NIF  Y <-- Port 15 is the SVL

C9500-P#show platform software fed switch standby ifm mappings
Interface                 IF_ID    Inst Asic Core Port SubPort Mac  Cntx LPN  GPN  Type Active
TenGigabitEthernet2/0/2   0x44       1   0   1    1      0      10   1    2    98   NIF  Y <-- Port 1 is an egres port, TenGi2/0/2
TenGigabitEthernet2/0/16  0x33       0   0   0    15     0      8    11   16   2360 NIF  Y <-- Port 15 is the SVL

验证C9300-PE-2前缀

***Software Prefix Programming***
C9300-PE-2#show ip route vrf RED 192.168.2.0

Routing Table: RED
Routing entry for 192.168.2.0/24
  Known via "eigrp 400", distance 90, metric 130816, precedence routine (0), type internal
  Redistributing via eigrp 400, bgp 69420
  Advertised by bgp 69420
  Last update from 10.0.0.22 on GigabitEthernet2/0/1, 21:35:22 ago
  Routing Descriptor Blocks:
  * 10.0.0.22, from 10.0.0.22, 21:35:22 ago, via GigabitEthernet2/0/1 <-- Next-hop to reach 192.168.2.0/24
      Route metric is 130816, traffic share count is 1
      Total delay is 5010 microseconds, minimum bandwidth is 1000000 Kbit
      Reliability 255/255, minimum MTU 1500 bytes
      Loading 1/255, Hops 1
      
C9300-PE-2#show ip route vrf RED 10.0.0.22

Routing Table: RED
Routing entry for 10.0.0.20/30
  Known via "connected", distance 0, metric 0 (connected, via interface)
  Redistributing via eigrp 400, bgp 69420
  Advertised by bgp 69420
  Routing Descriptor Blocks:
  * directly connected, via GigabitEthernet2/0/1
      Route metric is 0, traffic share count is 1
    
C9300-PE-2#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.0/24, epoch 0
  QOS: Precedence routine (0)
  dflt local label info: other/21 [0x2] <-- VPNv4 Label 
  nexthop 10.0.0.22 GigabitEthernet2/0/1

***FMAN RP Prefix Programming***  
C9300-PE-2#show ip vrf detail
VRF RED (VRF Id = 2); default RD 69:69; default VPNID <-- VRF ID used in next command 
  Old CLI format, supports IPv4 only
  Flags: 0xC
  Interfaces:
    Gi2/0/1
Address family ipv4 unicast (Table ID = 0x2):
  Flags: 0x0
  Export VPN route-target communities
    RT:69:69
  Import VPN route-target communities
    RT:69:69
  No import route-map
  No global export route-map
  No export route-map
  VRF label distribution protocol: not configured
  VRF label allocation mode: per-prefix
  
C9300-PE-2#show platform software ip switch active r0 cef table index 2 prefix 192.168.2.0/24 <-- Use the VRF ID from previous command
Forwarding Table

Prefix/Len                      Next Object      Index
----------------------------------------------------------------
192.168.2.0/24                  OBJ_ADJACENCY    0x3a

C9300-PE-2#show platform software adjacency switch active r0 index 0x3a <-- Use the OBJ_ADJACENCY value from previous command 
Number of adjacency objects: 10

Adjacency id: 0x3a (58)
  Interface: GigabitEthernet2/0/1, IF index: 53, Link Type: MCP_LINK_IP
  Encap: 0:72:78:c8:c9:c2:70:d3:79:be:ae:42:8:0 <-- MAC ending in C9C2 is the DMAC, MAC ending in AE42 is SMAC, 0800 is IP ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: no-l3-inject
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.22 <-- Next-hop IP address 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  OM handle: 0x348062b578

***FMAN FP Prefix Programming***  
C9300-PE-2#show platform software ip switch active f0 cef table index 2 prefix 192.168.2.0/24
Forwarding Table

Prefix/Len                      Next Object      Index
----------------------------------------------------------------
192.168.2.0/24                  OBJ_ADJACENCY    0x3a

C9300-PE-2#show platform software adjacency switch active f0 index 0x3a <-- Use the OBJ_ADJACENCY value from previous command 
Number of adjacency objects: 10

Adjacency id: 0x3a (58)
  Interface: GigabitEthernet2/0/1, IF index: 53, Link Type: MCP_LINK_IP
  Encap: 0:72:78:c8:c9:c2:70:d3:79:be:ae:42:8:0 <-- MAC ending in C9C2 is the DMAC, MAC ending in AE42 is SMAC, 0800 is IP ETYPE
  Encap Length: 14, Encap Type: MCP_ET_ARPA, MTU: 1500
  Flags: no-l3-inject
  Incomplete behavior type: None
  Fixup: unknown
  Fixup_Flags_2: unknown
  Nexthop addr: 10.0.0.22 <-- Next-hop IP address 
  IP FRR MCP_ADJ_IPFRR_NONE 0
  aom id: 477, HW handle: (nil) (created)

***FED Prefix Programming***  
C9300-PE-2#show platform hardware fed switch active ip route vrf-name RED 192.168.2.0/24
vrf   dest                                          htm            flags   SGT   DGID MPLS Last-modified
---   ----                                          ---            -----   ---   ---- ---- ------------------------
2     192.168.2.0/24                                0x7f0650a7e3e8 0x0     0     0         2021/06/23 18:46:56.801 <-- HTM value used in subsequent command
  FIB: prefix_hdl:0x38000016, mpls_ecr_prefix_hdl:0
  ========== OCE chain =====
  ADJ:objid:58 {link_type:IP ifnum:0x35, si:0x9700001b, IPv4:       10.0.0.22 } <-- objid relevant in subsequent command, 10.0.0.22 is the next-hop IP 
  ===============
  MPLS info: mpls_ecr_scale_prefix_adj:0, mpls_lspa_hdl:0
  ===============
  
C9300-PE-2#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f0650a7e3e8 1 <-- Use the HTM value from previous command
Handle:0x7f0650a7e3e8 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_IPV4_L3_UNICAST ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f0650ba4028

Detailed Resource Information (ASIC# 0)
----------------------------------------
Number of HTM Entries: 1

Entry 0: (handle 0x7f0650ba4028)

Absolute Index: 92180
Time Stamp: 1
KEY - vrf:2 mtr:0 prefix:192.168.2.0 rcp_redirect_index:0x0
MASK - vrf:255 mtr:0 prefix:255.255.255.0 rcp_redirect_index:0x0                                           (SI value used later)
FWD-AD = afd_label_flag:0 icmp_redir_enable:1 lvx_smr_enabled:0, dstNatType:0 priority:5 afdLabelOrDestClientId:0 SI:173 destined_to_us:0 hw_stats_idx:1 stats_id:0 redirectSetRouterMac:0 dgtIdx:0 destModIndex:0 dstNatTypeOrVpnPrefixPtrMsb:0 vpnPrefixPtr:0
SRC-AD = learning_violation:1 need_to_learn:1  locally_connected:0 staticentryViolation:0
rpfValid:1 rpfLe:37 rpfLePointer:0 rpfForcePass:0 rpfForceFail:0 reachableviaSome:1 rpfCheckIncomplete:0 defaultRoute:0 ChainPtrValid:0 ChainPtrOrPortLeIndex:72 UseRpfmatchTable:0 rpfIncomplete:0 is_src_ce:0 sgtValid:0 sgt:0 src_rloc_trusted:0,sgtCacheControl1 = 0, sgtCacheControl0 = 0
port_label:0x0 port_mask:0x0 vlan_label:0x0 vlan_mask:0x0 l3if_label:0x0 l3if_mask:0x0 group_label:0x0 group_mask:0x0


==============================================================

C9300-PE-2#show platform software fed switch active ip adj
IPV4 Adj entries
dest            if_name                 dst_mac          si_hdl         ri_hdl         pd_flags adj_id  Last-modified
----            -------                 -------          ------         ------         -------- -----   ------------------------
10.0.0.22       GigabitEthernet2/0/1    0072.78c8.c9c2   0x7f0650a32858 0x7f0650a1af48 0x0      0x3a       2021/06/23 18:46:52.956 

C9300-PE-2#show ip arp vrf RED 10.0.0.22
Protocol    Address        Age (min)  Hardware Addr  Type Interface
Internet    10.0.0.22           131   0072.78c8.c9c2 ARPA GigabitEthernet2/0/1  <-- dst_mac matches the ARP entry 

C9300-PE-2#show platform hardware fed fwd-asic abstraction print-resource-handle 0x7f0650a32858 1 <-- Use the HTM value from previous command
Handle:0x7f0650a32858 Res-Type:ASIC_RSC_SI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_L3_UNICAST_IPV4 Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: 0x7f0650a1af48Hardware Indices/Handles: index0:0xad  mtu_index/l3u_ri_index0:0x0  index1:0xad  mtu_index/l3u_ri_index1:0x0
Features sharing this resource:66 (1)]
Cookie length: 56
00 00 00 00 00 00 00 00 25 00 00 00 00 00 00 00 00 00 00 00 08 00 00 72 78 c8 c9 c2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Detailed Resource Information (ASIC# 0)
----------------------------------------


Station Index (SI) [0xad]
RI = 0x18
DI = 0x5338
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0
rcpServiceId = 0
dejaVuPreCheckEn = 0
Replication Bitmap: CD

Detailed Resource Information (ASIC# 1)
----------------------------------------


Station Index (SI) [0xad]
RI = 0x18
DI = 0x5338
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0
rcpServiceId = 0
dejaVuPreCheckEn = 0
Replication Bitmap: LD

==============================================================

C9300-PE-2#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x5338 0x5338 <-- Use the DI value from previous command
ASIC#0:

index = 0x5338
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
ASIC#1:

index = 0x5338
pmap = 0x00000000 0x00000001 <-- Looking at 0x00000001, in binary that is 0000 0000 0000 0000 0000 0000 0000 0001 = Port 0 (Zero based, count right to left)
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9300-PE-2#show platform software fed switch active ifm mappings
Interface                 IF_ID    Inst Asic Core Port SubPort Mac  Cntx LPN  GPN  Type Active
GigabitEthernet2/0/1      0x35       1   0   1    0      0      26   6    1    97   NIF  Y    <-- Port 0 is the egress port, Gi2/0/1

VPNv4标签编程

下一节介绍MPLS PE路由器C9300-PE-1和C9300-PE-2上的VPNv4标签编程。C9500=P不会在VPNv4标签上转发，因此没有来自C9500的输出 — P。

C9300-PE-1 VPNv4标签编程：

检查PE的本地前缀，而不是远程前缀。从FED的角度检查标签，然后返回到FMAN RP和FMAN FP。

***Software VPNv4 Label Programming***
C9300-PE-1#show ip cef vrf RED 192.168.3.0/24 detail
192.168.3.0/24, epoch 0
  QOS: Precedence routine (0)
  dflt local label info: other/21 [0x2] <-- VPNv4 label assocaited with the local prefix 
  nexthop 10.0.0.1 GigabitEthernet1/0/1

***FMAN RP VPNv4 Label Programming***
C9300-PE-1#show platform software mpls switch active r0 eos index 117 <-- Utilize the objid from the FED command 


EOS Choice 0x75, Number of paths: 2
  Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
  Next Object Index: 0,0x74
  OM handle: 0x3480644470

***FMAN FP VPNv4 Label Programming***
C9300-PE-1#show platform software mpls switch active f0 eos index 117 <-- Utilize the objid from the FED command 


EOS Choice 0x75, Number of paths: 2
  Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
  Next Object Index: 0,0x74
  aom id: 612, CPP handle: 0xdeadbeef (created), flags: 0

C9300-PE-1#show platform software object-manager switch active f0 object 612 <-- Use the aom id from previous command 
Object identifier: 612
  Description: EOS Choice 0x75
  Status: Done, Epoch: 0, Client data: 0xe05e9318

C9300-PE-1#show platform software object-manager switch active f0 object 612 parents <-- Use the aom id from previous command
Object identifier: 7
  Description: Special Object adj_drop
  Status: Done

Object identifier: 611
  Description: label 0x74
  Status: Done

***FED VPNv4 Label Programming***
C9300-PE-1#show platform software fed switch active mpls forwarding label 21 detail
 LENTRY:label:21 nobj:(EOS, 117) lentry_hdl:0x8b000009
   modify_cnt:0 backwalk_cnt:0
   lspa_handle:0
   AAL: id:2332033033 lbl:21
        eos0:[adj_hdl:0, hw_hdl:0x7fbae8d87428]
        eos1:[adj_hdl:0x4300003b, hw_hdl:0x7fbae8d87278]
        deagg_vrf_id = 0 lspa_handle:0
   EOS:objid:117 local_label:0 flags:0:() pdflags:0 <-- Utilized in previous commands 
      nobj0:(ADJ SPECIAL,DROP 0), nobj1:(LABEL, 116) modify:0 bwalk:0
      LABEL:objid:116 link_type:IP local_label:21 outlabel:(1048577, 0)
          flags:0xc:(UHP,POP,) pdflags:0x2:(INSTALL_HW_OK,) adj_handle:0x4300003b
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:1124073531 lbl:0 smac:a0f8.4911.d1e4 dmac:0072.78c8.06e4
               sub_type:0 link_type:0 adj_flags:0x2 label_type:1 rewrite_type:POP2IP(135)
               vlan_id:0 vrf_id:0 ri:0x7fbae8d811b8, ri_id:0x3e phdl:0xf1000024, ref_cnt:1
               si:0x7fbae8d72078, si_id:0x4012, di_id:0x5338
      ADJ:objid:58 {link_type:IP ifnum:0x35, si:0x1900001b, IPv4:        10.0.0.1 }

验证C9300-PE-2 VPNv4标签

检查PE的本地前缀，而不是远程前缀。从FED的角度检查标签，然后返回到FMAN RP和FMAN FP。

C9300-PE-2#show ip cef vrf RED 192.168.2.0/24 detail
192.168.2.0/24, epoch 0
  QOS: Precedence routine (0)
  dflt local label info: other/21 [0x2] <-- VPNv4 label associated with the local prefix
  nexthop 10.0.0.22 GigabitEthernet2/0/1

C9300-PE-2#show platform software mpls switch active r0 eos index 118 <-- Utilize the objid value from the FED command 


EOS Choice 0x76, Number of paths: 2
  Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
  Next Object Index: 0,0x75
  OM handle: 0x34806402d0


C9300-PE-2#show platform software mpls switch active f0 eos index 118 <-- Utilize the objid value from the FED command 


EOS Choice 0x76, Number of paths: 2
  Next Object Type: OBJ_ADJ_DROP,OBJ_LABEL
  Next Object Index: 0,0x75
  aom id: 589, CPP handle: 0xdeadbeef (created), flags: 0

C9300-PE-2#show platform software object-manager switch active f0 object 589 <-- Utilize the aom id from the previous command
Object identifier: 589
  Description: EOS Choice 0x76
  Status: Done, Epoch: 0, Client data: 0x248cac8

C9300-PE-2#show platform software object-manager switch active f0 object 589 parents <-- Utilize the aom id from the previous command
Object identifier: 7
  Description: Special Object adj_drop
  Status: Done

Object identifier: 588
  Description: label 0x75
  Status: Done
  
C9300-PE-2#show platform software fed switch active mpls forwarding label 21 detail
 LENTRY:label:21 nobj:(EOS, 118) lentry_hdl:0x63000009
   modify_cnt:0 backwalk_cnt:0
   lspa_handle:0
   AAL: id:1660944393 lbl:21
        eos0:[adj_hdl:0, hw_hdl:0x7f0650a40408]
        eos1:[adj_hdl:0xcb00003a, hw_hdl:0x7f0650a401f8]
        deagg_vrf_id = 0 lspa_handle:0
   EOS:objid:118 local_label:0 flags:0:() pdflags:0
      nobj0:(ADJ SPECIAL,DROP 0), nobj1:(LABEL, 117) modify:0 bwalk:0
      LABEL:objid:117 link_type:IP local_label:21 outlabel:(1048577, 0)
          flags:0xc:(UHP,POP,) pdflags:0x2:(INSTALL_HW_OK,) adj_handle:0xcb00003a
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:3405774906 lbl:0 smac:70d3.79be.ae42 dmac:0072.78c8.c9c2
               sub_type:0 link_type:0 adj_flags:0x2 label_type:1 rewrite_type:POP2IP(135)
               vlan_id:0 vrf_id:0 ri:0x7f0650a3f2a8, ri_id:0x48 phdl:0xf1000024, ref_cnt:1
               si:0x7f0650a3d5e8, si_id:0x400a, di_id:0x5338
      ADJ:objid:58 {link_type:IP ifnum:0x35, si:0x9700001b, IPv4:       10.0.0.22 }

LDP标签编程

下一节介绍MPLS路由器、C9300-PE-1、C9500-P和C9300-PE-2上的LDP标签编程。

LDP（外部）标签是MPLS网络标签交换数据包的方式。验证通告给远程PE的本地LDP标签，不验证远程LDP标签。

C9300-PE-1 LDP标签编程：

验证通告到远程PE的本地LDP标签，不验证远程LDP标签。从FED的角度检查标签，然后返回到FMAN RP和FMAN FP。

***Software LDP Label Programming***
C9300-PE-1#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         Pop Label  192.168.1.3/32   0             Gi1/0/2    10.0.0.6
           Pop Label  192.168.1.3/32   0             Gi1/0/3    10.0.0.10
17         Pop Label  10.0.0.16/30     0             Gi1/0/2    10.0.0.6
           Pop Label  10.0.0.16/30     0             Gi1/0/3    10.0.0.10
18         Pop Label  10.0.0.12/30     0             Gi1/0/2    10.0.0.6
           Pop Label  10.0.0.12/30     0             Gi1/0/3    10.0.0.10
19         17         192.168.1.4/32   0             Gi1/0/2    10.0.0.6 <-- LDP label 19 is advertised to reach PE 192.168.1.4
           17         192.168.1.4/32   0             Gi1/0/3    10.0.0.10
20         No Label   10.0.0.0/30[V]   630           aggregate/RED
21         No Label   192.168.3.0/24[V]   \
                                       0             Gi1/0/1    10.0.0.1

***FMAN RP LDP Label Programming***
C9300-PE-1#show platform software mpls switch active r0 label index 110 <-- Use the objid value from the FED commands 


Label OCE 0x6e -> OBJ_ADJACENCY (0x4b)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x34806420d0

C9300-PE-1#show platform software mpls switch active r0 label index 111 <-- Use the objid value from the FED commands 


Label OCE 0x6f -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x3480642268

***FMAN FP LDP Label Programming***
C9300-PE-1#show platform software mpls switch active f0 label index 110 <-- Use the objid value from the FED commands 


Label OCE 0x6e -> OBJ_ADJACENCY (0x4b)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 598, CPP handle: 0xdeadbeef (created)

C9300-PE-1#show platform software mpls switch active f0 label index 111 <-- Use the objid value from the FED commands 


Label OCE 0x6f -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x11
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 599, CPP handle: 0xdeadbeef (created)

C9300-PE-1#show platform software object-manager switch active f0 object 598 <-- Utilize the aom id from previous commands
Object identifier: 598
  Description: label 0x6e
  Status: Done, Epoch: 0, Client data: 0xe05e6d78

C9300-PE-1#show platform software object-manager switch active f0 object 598 parents <-- Utilize the aom id from previous commands
Object identifier: 531
  Description: adj 0x4b, Flags None
  Status: Done
  
C9300-PE-1#show platform software object-manager switch active f0 object 599 <-- Utilize the aom id from previous commands
Object identifier: 599
  Description: label 0x6f
  Status: Done, Epoch: 0, Client data: 0xe05e6f78


C9300-PE-1#show platform software object-manager switch active f0 object 599 parents <-- Utilize the aom id from previous commands
Object identifier: 535
  Description: adj 0x4e, Flags None
  Status: Done  

C9300-PE-1#show platform software fed switch active mpls forwarding label 19 detail
 LENTRY:label:19 nobj:(LB, 112) lentry_hdl:0x9000007
   modify_cnt:1 backwalk_cnt:0
   lspa_handle:0
   AAL: id:150994951 lbl:19
        eos0:[adj_hdl:0x7d000002, hw_hdl:0x7fbae8d778b8]
        eos1:[adj_hdl:0x7d000002, hw_hdl:0x7fbae8d776a8]
        deagg_vrf_id = 0 lspa_handle:0
   LB:obj_id:112 link_type:IP num_choices:2 Flags:0
       mpls_ecr:1 local_label:19 path_inhw:2 ecrh:0x7d000002 old_ecrh:0
       modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0
       bwalk:[req:0 in_prog:0 nested:0]
     AAL: ecr:id:2097152002 af:0 ecr_type:0 ref:7 ecrh:0x7fbae8a99268(28:2)
     hwhdl:3903427176 ::0x7fbae8a98b98,0x7fbae8a9ad48,0x7fbae8a98b98,0x7fbae8a9ad48
   Sw Enh ECR scale: objid:112 llabel:19 eos:1 #adjs:2 mixed_adj:0
      reprogram_hw:0 ecrhdl:0x7d000002 ecr_hwhdl:0x7fbae8a99268
       mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0
       ecr_adj: id:4278190135 is_mpls_adj:1 l3adj_flags:0x100000
         recirc_adj_id:1744830509
             sih:0x7fbae8a98b98(179) di_id:20499 rih:0x7fbae8a985d8(33)
         adj_lentry [eos0:0x7fbae8d7bf48 eos1:0x7fbae8d76e88]
       ecr_adj: id:1392508984 is_mpls_adj:1 l3adj_flags:0x100000
         recirc_adj_id:2013265966
             sih:0x7fbae8a9ad48(180) di_id:20499 rih:0x7fbae8a9a788(46)
         adj_lentry [eos0:0x7fbae8d7c1b8 eos1:0x7fbae8d77158]
       ecr_prefix_adj: id:2164260921 (ref:1)
          sih:0x7fbae8d7df08(181) di_id:20499 rih:0x7fbae8d7db98(68)
      LABEL:objid:110 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Used in previous commands
          flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xff000037
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:4278190135 lbl:0 smac:a0f8.4911.d1d6 dmac:d4ad.71b5.dde4
               sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
               vlan_id:0 vrf_id:0 ri:0x7fbae8d78c48, ri_id:0x40 phdl:0x9f00004b, ref_cnt:1
               si:0x7fbae8d78fd8, si_id:0x4013, di_id:0x535f
      ADJ:objid:75 {link_type:MPLS ifnum:0x36, si:0x22000023, }
      LABEL:objid:111 link_type:MPLS local_label:19 outlabel:(17, 0) <-- Used in previous commands 
          flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x53000038
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:1392508984 lbl:0 smac:a0f8.4911.d1d8 dmac:d4ad.71b5.ddc2
               sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
               vlan_id:0 vrf_id:0 ri:0x7fbae8d7d0a8, ri_id:0x42 phdl:0x8400004c, ref_cnt:1
               si:0x7fbae8d7a908, si_id:0x4014, di_id:0x5360
      ADJ:objid:78 {link_type:MPLS ifnum:0x37, si:0x74000026, }

C9500-P LDP标签编程：

验证通告到远程PE的本地LDP标签，不验证远程LDP标签。从FED的角度检查标签，然后返回到FMAN RP和FMAN FP。

***Software LDP Label Programming***
C9500-P#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         explicit-n 192.168.1.2/32   1240          Te1/0/1    10.0.0.5  <-- LDP Label 16 advertised to reach PE 192.168.1.2
           explicit-n 192.168.1.2/32   226537        Te2/0/1    10.0.0.9
17         explicit-n 192.168.1.4/32   610           Te1/0/2    10.0.0.14 <-- LDP LAbel 17 advertised to reach PE 192.168.1.4
           explicit-n 192.168.1.4/32   227592        Te2/0/2    10.0.0.18

***FMAN RP LDP Label Programming***
C9500-P#show platform software mpls switch active r0 label index 94


Label OCE 0x5e -> OBJ_ADJACENCY (0x3f)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x348064c530

C9500-P#show platform software mpls switch active r0 label index 95


Label OCE 0x5f -> OBJ_ADJACENCY (0x44)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x348064c6c8
  
C9500-P#show platform software mpls switch active r0 label index 104


Label OCE 0x68 -> OBJ_ADJACENCY (0x49)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x348064df70

C9500-P#show platform software mpls switch active r0 label index 105


Label OCE 0x69 -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x348064e108    

***FMAN FP LDP Label Programming***
C9500-P#show platform software mpls switch active f0 label index 94


Label OCE 0x5e -> OBJ_ADJACENCY (0x3f)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 564, CPP handle: 0xdeadbeef (created)

C9500-P#show platform software mpls switch active f0 label index 95


Label OCE 0x5f -> OBJ_ADJACENCY (0x44)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 565, CPP handle: 0xdeadbeef (created)  

C9500-P#show platform software mpls switch active f0 label index 104


Label OCE 0x68 -> OBJ_ADJACENCY (0x49)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 576, CPP handle: 0xdeadbeef (created)

C9500-P#show platform software mpls switch active f0 label index 105


Label OCE 0x69 -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 577, CPP handle: 0xdeadbeef (created)
  
    
C9500-P#show platform software object-manager switch active f0 object 564
Object identifier: 564
  Description: label 0x5e
  Status: Done, Epoch: 0, Client data: 0x4f737108


C9500-P#show platform software object-manager switch active f0 object 564 parents
Object identifier: 515
  Description: adj 0x3f, Flags None
  Status: Done

C9500-P#show platform software object-manager switch active f0 object 565
Object identifier: 565
  Description: label 0x5f
  Status: Done, Epoch: 0, Client data: 0x4f737448


C9500-P#show platform software object-manager switch active f0 object 565 parents
Object identifier: 525
  Description: adj 0x44, Flags None
  Status: Done  

C9500-P#show platform software object-manager switch active f0 object 576
Object identifier: 576
  Description: label 0x68
  Status: Done, Epoch: 0, Client data: 0x4f6d4bf8

C9500-P#show platform software object-manager switch active f0 object 576 parents
Object identifier: 536
  Description: adj 0x49, Flags None
  Status: Done
  
C9500-P#show platform software object-manager switch active f0 object 577
Object identifier: 577
  Description: label 0x69
  Status: Done, Epoch: 0, Client data: 0x4f737f78


C9500-P#show platform software object-manager switch active f0 object 577 parents
Object identifier: 545
  Description: adj 0x4e, Flags None
  Status: Done  

***FED LDP Label Programming***
C9500-P#show platform software fed switch active mpls forwarding label 16 detail
 LENTRY:label:16 nobj:(LB, 96) lentry_hdl:0xeb000004
   modify_cnt:2 backwalk_cnt:0
   lspa_handle:0
   AAL: id:3942645764 lbl:16
        eos0:[adj_hdl:0x44000002, hw_hdl:0x7f0b284b4d98]
        eos1:[adj_hdl:0x44000002, hw_hdl:0x7f0b284b4be8]
        deagg_vrf_id = 0 lspa_handle:0
   LB:obj_id:96 link_type:IP num_choices:2 Flags:0
       mpls_ecr:1 local_label:16 path_inhw:2 ecrh:0x44000002 old_ecrh:0
       modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0
       bwalk:[req:0 in_prog:0 nested:0]
     AAL: ecr:id:1140850690 af:0 ecr_type:0 ref:2 ecrh:0x7f0b284a3998(28:2)
     hwhdl:675953048 ::0x7f0b284b4268,0x7f0b284a1d78,0x7f0b284b4268,0x7f0b284a1d78
   Sw Enh ECR scale: objid:96 llabel:16 eos:1 #adjs:2 mixed_adj:0
      reprogram_hw:0 ecrhdl:0x44000002 ecr_hwhdl:0x7f0b284a3998
       mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0
       ecr_adj: id:1610612787 is_mpls_adj:1 l3adj_flags:0x100000
         recirc_adj_id:1207959601
             sih:0x7f0b284b4268(181) di_id:23709 rih:0x7f0b284b3ca8(31)
         adj_lentry [eos0:0x7f0b284a32d8 eos1:0x7f0b284a3cc8]
       ecr_adj: id:805306420 is_mpls_adj:1 l3adj_flags:0x100000
         recirc_adj_id:67108914
             sih:0x7f0b284a1d78(182) di_id:23709 rih:0x7f0b284b47d8(44)
         adj_lentry [eos0:0x7f0b284c1608 eos1:0x7f0b284a2138]
       ecr_prefix_adj: id:3976200245 (ref:1)
          sih:0x7f0b284c2bf8(183) di_id:23709 rih:0x7f0b284c2888(50)
      LABEL:objid:94 link_type:MPLS local_label:16 outlabel:(0, 0)
          flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x60000033
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:1610612787 lbl:0 smac:d4ad.71b5.dde4 dmac:a0f8.4911.d1d6
               sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
               vlan_id:0 vrf_id:0 ri:0x7f0b284a2cd8, ri_id:0x2e phdl:0xe9000057, ref_cnt:1
               si:0x7f0b284a3048, si_id:0x4009, di_id:0x1
      ADJ:objid:63 {link_type:MPLS ifnum:0x41, si:0x2d000023, }
      LABEL:objid:95 link_type:MPLS local_label:16 outlabel:(0, 0)
          flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x30000034
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:805306420 lbl:0 smac:d4ad.71b5.ddc2 dmac:a0f8.4911.d1d8
               sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
               vlan_id:0 vrf_id:0 ri:0x7f0b284a57c8, ri_id:0x30 phdl:0x67000059, ref_cnt:1
               si:0x7f0b284a6008, si_id:0x400a, di_id:0x61
      ADJ:objid:68 {link_type:MPLS ifnum:0x43, si:0xef000026, }

C9500-P#show platform software fed switch active mpls forwarding label 17 detail
 LENTRY:label:17 nobj:(LB, 106) lentry_hdl:0xf6000005
   modify_cnt:1 backwalk_cnt:0
   lspa_handle:0
   AAL: id:4127195141 lbl:17
        eos0:[adj_hdl:0x44000002, hw_hdl:0x7f0b284ce2f8]
        eos1:[adj_hdl:0x44000002, hw_hdl:0x7f0b284ce0e8]
        deagg_vrf_id = 0 lspa_handle:0
   LB:obj_id:106 link_type:IP num_choices:2 Flags:0
       mpls_ecr:1 local_label:17 path_inhw:2 ecrh:0x44000002 old_ecrh:0
       modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0
       bwalk:[req:0 in_prog:0 nested:0]
     AAL: ecr:id:1140850690 af:0 ecr_type:0 ref:2 ecrh:0x7f0b284a3998(28:2)
     hwhdl:675953048 ::0x7f0b284b4268,0x7f0b284a1d78,0x7f0b284b4268,0x7f0b284a1d78
   Sw Enh ECR scale: objid:106 llabel:17 eos:1 #adjs:2 mixed_adj:0
      reprogram_hw:0 ecrhdl:0x44000002 ecr_hwhdl:0x7f0b284a3998
       mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0
       ecr_adj: id:4127195192 is_mpls_adj:1 l3adj_flags:0x100000
         recirc_adj_id:1207959601
             sih:0x7f0b284b4268(181) di_id:23709 rih:0x7f0b284b3ca8(31)
         adj_lentry [eos0:0x7f0b284c38e8 eos1:0x7f0b284cd858]
       ecr_adj: id:1157627961 is_mpls_adj:1 l3adj_flags:0x100000
         recirc_adj_id:67108914
             sih:0x7f0b284a1d78(182) di_id:23709 rih:0x7f0b284b47d8(44)
         adj_lentry [eos0:0x7f0b284c3af8 eos1:0x7f0b284cdb28]
       ecr_prefix_adj: id:3707764794 (ref:1)
          sih:0x7f0b284c5028(184) di_id:23709 rih:0x7f0b284c4c48(60)
      LABEL:objid:104 link_type:MPLS local_label:17 outlabel:(0, 0)
          flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xf6000038
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:4127195192 lbl:0 smac:d4ad.71b5.ddd6 dmac:70d3.79be.ae71
               sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
               vlan_id:0 vrf_id:0 ri:0x7f0b284ceaa8, ri_id:0x38 phdl:0x76000058, ref_cnt:1
               si:0x7f0b284ceeb8, si_id:0x400b, di_id:0x2
      ADJ:objid:73 {link_type:MPLS ifnum:0x42, si:0x1f000028, }
      LABEL:objid:105 link_type:MPLS local_label:17 outlabel:(0, 0)
          flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x45000039
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:1157627961 lbl:0 smac:d4ad.71b5.ddf1 dmac:70d3.79be.ae61
               sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
               vlan_id:0 vrf_id:0 ri:0x7f0b284c4588, ri_id:0x3a phdl:0x5500005a, ref_cnt:1
               si:0x7f0b284d0548, si_id:0x400c, di_id:0x62
      ADJ:objid:78 {link_type:MPLS ifnum:0x44, si:0x4900002a, }

C9300-PE-2 LDP标签编程：

验证通告到远程PE的本地LDP标签，不验证远程LDP标签。首先从FED的角度检查标签，然后回溯到FMAN RP和FMAN FP。

***Software LDP Label Programming***
C9300-PE-2#show mpls forwarding-table
Local      Outgoing   Prefix           Bytes Label   Outgoing   Next Hop
Label      Label      or Tunnel Id     Switched      interface
16         Pop Label  192.168.1.3/32   0             Gi2/0/2    10.0.0.13
           Pop Label  192.168.1.3/32   0             Gi2/0/3    10.0.0.17
17         16         192.168.1.2/32   0             Gi2/0/2    10.0.0.13 <-- LDP Label 17 is advertised to Remote PE 192.168.1.2
           16         192.168.1.2/32   0             Gi2/0/3    10.0.0.17
18         Pop Label  10.0.0.4/30      0             Gi2/0/2    10.0.0.13
           Pop Label  10.0.0.4/30      0             Gi2/0/3    10.0.0.17
19         Pop Label  10.0.0.8/30      0             Gi2/0/2    10.0.0.13
           Pop Label  10.0.0.8/30      0             Gi2/0/3    10.0.0.17
20         No Label   10.0.0.20/30[V]  630           aggregate/RED
21         No Label   192.168.2.0/24[V]   \
                                       0             Gi2/0/1    10.0.0.22

***FMAN RP Label Programming***
C9300-PE-2#show platform software mpls switch active r0 label index 106 <-- Use the objid values from the FED commands


Label OCE 0x6a -> OBJ_ADJACENCY (0x4b)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x10
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x3480637358

C9300-PE-2#show platform software mpls switch active r0 label index 107 <-- Use the objid values from the FED commands 


Label OCE 0x6b -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x10
  Backup flags: Pop, UHP, backup label 0x100001
  OM handle: 0x3480638c10

***FMAN FP LDP Label Programming***
C9300-PE-2#show platform software mpls switch active f0 label index 106


Label OCE 0x6a -> OBJ_ADJACENCY (0x4b)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x10
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 548, CPP handle: 0xdeadbeef (created) 

C9300-PE-2#show platform software mpls switch active f0 label index 107


Label OCE 0x6b -> OBJ_ADJACENCY (0x4e)
  Flags: Real, Number of labels in the OCE: 1
  Label values: 0x10
  Backup flags: Pop, UHP, backup label 0x100001
  aom id: 549, CPP handle: 0xdeadbeef (created)

C9300-PE-2#show platform software object-manager switch active f0 object 548 <-- Use the aom id value from the previous commands 
Object identifier: 548
  Description: label 0x6a
  Status: Done, Epoch: 0, Client data: 0x24843d8


C9300-PE-2#show platform software object-manager switch active f0 object 548 parents <-- Use the aom id value from the previous commands 
Object identifier: 509
  Description: adj 0x4b, Flags None
  Status: Done

C9300-PE-2#show platform software object-manager switch active f0 object 549 <-- Use the aom id value from the previous commands
Object identifier: 549
  Description: label 0x6b
  Status: Done, Epoch: 0, Client data: 0x2484518

C9300-PE-2#show platform software object-manager switch active f0 object 549 parents <-- Use the aom id value from the previous commands
Object identifier: 513
  Description: adj 0x4e, Flags None
  Status: Done

***FED LDP Label Programming***
C9300-PE-2#show platform software fed switch active mpls forwarding label 17 detail
 LENTRY:label:17 nobj:(LB, 108) lentry_hdl:0x64000005
   modify_cnt:1 backwalk_cnt:0
   lspa_handle:0
   AAL: id:1677721605 lbl:17
        eos0:[adj_hdl:0xa0000002, hw_hdl:0x7f0650a5c8e8]
        eos1:[adj_hdl:0xa0000002, hw_hdl:0x7f0650a5b908]
        deagg_vrf_id = 0 lspa_handle:0
   LB:obj_id:108 link_type:IP num_choices:2 Flags:0
       mpls_ecr:1 local_label:17 path_inhw:2 ecrh:0xa0000002 old_ecrh:0
       modify_cnt:0 bwalk_cnt:0 subwalk_cnt:0 finish_cnt:0
       bwalk:[req:0 in_prog:0 nested:0]
     AAL: ecr:id:2684354562 af:0 ecr_type:0 ref:7 ecrh:0x7f0650a62888(28:2)
     hwhdl:1353066632 ::0x7f0650a60998,0x7f0650a630d8,0x7f0650a60998,0x7f0650a630d8
   Sw Enh ECR scale: objid:108 llabel:17 eos:1 #adjs:2 mixed_adj:0
      reprogram_hw:0 ecrhdl:0xa0000002 ecr_hwhdl:0x7f0650a62888
       mod_cnt:0 prev_npath:0 pmismatch:0 pordermatch:0
       ecr_adj: id:436207667 is_mpls_adj:1 l3adj_flags:0x100000
         recirc_adj_id:2113929262
             sih:0x7f0650a60998(178) di_id:20507 rih:0x7f0650a60378(50)
         adj_lentry [eos0:0x7f0650a877d8 eos1:0x7f0650a1cf78]
       ecr_adj: id:3976200246 is_mpls_adj:1 l3adj_flags:0x100000
         recirc_adj_id:1509949487
             sih:0x7f0650a630d8(179) di_id:20507 rih:0x7f0650a62b18(51)
         adj_lentry [eos0:0x7f0650a87a48 eos1:0x7f0650a1d188]
       ecr_prefix_adj: id:2919235640 (ref:1)
          sih:0x7f0650a87558(180) di_id:20507 rih:0x7f0650a871d8(68)
      LABEL:objid:106 link_type:MPLS local_label:17 outlabel:(16, 0) <-- Used in previous commands 
          flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0x1a000033
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:436207667 lbl:0 smac:70d3.79be.ae71 dmac:d4ad.71b5.ddd6
               sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
               vlan_id:0 vrf_id:0 ri:0x7f0650a67d48, ri_id:0x3a phdl:0x9f00004b, ref_cnt:1
               si:0x7f0650a65408, si_id:0x4010, di_id:0x535f
      ADJ:objid:75 {link_type:MPLS ifnum:0x36, si:0x35000023, }
      LABEL:objid:107 link_type:MPLS local_label:17 outlabel:(16, 0) <-- Used in previous commands 
          flags:0x1:(REAL,) pdflags:0:(INSTALL_HW_OK,) adj_handle:0xed000036
          unsupported recursion:0 olbl_changed 0 local_adj:0 modify_cnt:0
          bwalk_cnt:0 subwalk_cnt:0 collapsed_oce:0
          AAL: id:3976200246 lbl:0 smac:70d3.79be.ae61 dmac:d4ad.71b5.ddf1
               sub_type:0 link_type:2 adj_flags:0 label_type:2 rewrite_type:PSH1(119)
               vlan_id:0 vrf_id:0 ri:0x7f0650a6f4f8, ri_id:0x40 phdl:0x8400004c, ref_cnt:1
               si:0x7f0650a73088, si_id:0x4013, di_id:0x5360
      ADJ:objid:78 {link_type:MPLS ifnum:0x37, si:0xa2000025, }

硬件扩展故障排除

本部分提供了可用于对配置进行故障排除的信息。

MPLS硬件系统日志

如果用完特定资源（如MPLS标签），系统将生成SYSLOG消息。

要记住的要点

MPLS LABEL用于标签处置。（当从本地CE获取前缀时，会消耗此资源）
LSPA用于标签实施。（当从远程PE获取前缀时，会消耗此资源）

MPLS日志消息	定义	恢复操作
%FED_L3_ERRMSG-3-RSRC_ERR:交换机1 R0/0:fed：由于硬件资源耗尽，无法为fib条目分配硬件资源	为IP前缀保留的硬件空间已用尽（EM或TCAM）	执行以下操作之一以减少本地或远程PE获知的前缀数： 1.在CE汇总前缀 2.将标签分配模式从每前缀更改为每VRF
%FED_L3_ERRMSG-3-mpls_out_of_resource:交换机1 R0/0:美联储：MPLS标签条目资源不足。无法在硬件中对本地标签：8205(8192/8192)进行编程	本地标签分配：为MPLS本地标签保留的硬件空间已用尽（EM或TCAM）	执行以下操作之一以减少本地PE上使用的线路数： 1.总结本地CE或本地PE的前缀 2.在本地PE上将标签分配模式从每前缀更改为每vrf
%FED_L3_ERRMSG-3-MPLS_LENTRY_PAUSE:交换机1 R0/0:美联储：已达到MPLS标签条目资源的严重限制。重试创建暂停。	本地标签分配：为MPLS本地标签保留的硬件空间已用尽（EM或TCAM）	执行以下操作之一以减少本地PE上使用的线路数: 1.总结本地CE或本地PE的前缀 2.在本地PE上将标签分配模式从每前缀更改为每vrf
%FED_L3_ERRMSG-3-mpls_out_of_resource:交换机1 R0/0:美联储：MPLS LSPA资源不足。无法在硬件中编程	远程标签分配：为LSPA远程标签保留的硬件空间已用尽	执行以下操作之一以减少远程PE上使用的线路数: 1.在远程CE或远程PE上汇总前缀 2.在远程PE上将标签分配模式从每前缀更改为每vrf

硬件验证命令

show platform hardware fed active fwd-asic resource tcam utilization命令是您想要评估是否存在硬件扩展问题的第一个位置。它按ASIC显示信息。

本部分显示来自vrf MPLS中BGP的PE学习前缀，其参数如下所述：

使用默认的每前缀标签分配
PE是C9300-48U，带Cisco IOS-XE 17.3.4
CE是BGP邻居，向vrf MPLS中的接口通告前缀
使用的前缀长度为/28。因此，平台使用TCAM作为前缀长度/31或更短
此平台首先为MPLS/BGP标签使用EM内存，然后在EM变满时向TCAM溢出

拓扑

Catalyst MPLS scale diagram

基准资源使用情况

在添加任何前缀之前，有一些基本用途：

此基线是在MPLS LDP邻居在全局表中形成后采用的
在此基线中，VPNv4前缀添加到VRF MPLS中
您的基准数字可能不同。它取决于交换机上已编程的设备

注意：在本示例中，前缀从一个CE-PE端添加，这会导致资源（如LSPA）仅在需要使用标签堆栈实现可达性的远程PE上分配。在现实场景中，资源将分配到两个PE设备。

C9300-48U#show version | inc IOS
Cisco IOS XE Software, Version 17.03.04
Cisco IOS Software [Amsterdam], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.3.4, RELEASE SOFTWARE (fc3)

C9300-48U#show platform hardware fed switch active fwd-asic resource tcam utilization
Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable

CAM Utilization for ASIC  [0]
 Table                  Subtype      Dir      Max     Used    %Used       V4       V6     MPLS    Other
 ------------------------------------------------------------------------------------------------------
 Mac Address Table      EM           I       32768       20    0.06%        0        0        0       20
 Mac Address Table      TCAM         I        1024       21    2.05%        0        0        0       21
 L3 Multicast           EM           I        8192        0    0.00%        0        0        0        0
 L3 Multicast           TCAM         I         512        9    1.76%        3        6        0        0
 L2 Multicast           EM           I        8192        0    0.00%        0        0        0        0
 L2 Multicast           TCAM         I         512       11    2.15%        3        8        0        0
 IP Route Table         EM           I       24576       23    0.09%       14        0        9        0  <-- 23 EM (hash) base usage
 IP Route Table         TCAM         I        8192       25    0.31%       12       10        2        1  <-- 25 TCAM base usage


C9300-48U#show platform software fed switch active mpls summary | b Resource shar
Resource sharing info:
  SI: 4/65536                                       
  RI: 10/65536                                       
  Well Known Index: 49/2048
Tcam: 21/57344                                     
  lv1_ecr: 0/64
  lv2_ecr: 0/256 
  lspa: 0/16385                                      
label_stack_id: 2/65537                          
  vpn_spoke_id: 0/255
  indirect_si: 0/255
RSM resource database stats:                         
  Num of (L3+mpls) ADJ entries allocated: 36/131072  
  Num of LABEL entries allocated: 4/8192             <-- Baseline label usage = 4 (label entries allocated on local PE-CE side)
  Num of LSPA entries allocated: 0/8192              <-- LSPA resource used when prefix learnt from another PE, not from a local CE (The SDM template determines max value)
  Num of local adjs in mpls adjs: 3
  Num of SI stats allocated: 6/49152
  Adjs stats allocated by MPLS:
  Num of mpls adjs: 11                              
  Num of L3 adjs: 0
  Num of VPN prefix_id: 0
<...snip...>
Other MPLS resource alloc error stats:              <-- reported resource allocation issues shown here 
  LENTRY out-of-resource errors: 0
  LENTRY general errors: 0
  LSPA out-of-resource errors: 0
  LSPA general errors: 0
  ADJ out-of-resource errors: 0
  SI stats alloc error: 0
  MPLS ADJ stats error: 0
  MPLS ADJ stats last error rc: 0

注意：SI/RI/DI是数据包重写、目标端口等所需的资源。要对SI/DI/RI问题进行故障排除，请参阅了解Catalyst 9000交换机上的硬件资源

添加1000 BGP VPNv4前缀

邻居(Ixia)启用从CE向VRF MPLS添加1000个前缀

9300本地PE（连接到CE）

C9300-48U#show bgp vpnv4 unicast all summary
BGP router identifier 10.0.0.1, local AS number 65000
<...snip...>
Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
10.0.0.5        4        65000     102     304     3001    0    0 01:28:23        0
192.168.1.2     4        65005     102       5     3001    0    0 00:00:58     1000 <-- PE learns 1000 prefixes from CE device

C9300-48U#show bgp vpnv4 unicast all | count /28
Number of lines which match regexp = 1000         <-- All 1000 prefixes are /28

C9300-48U#show platform hardware fed switch active fwd-asic resource tcam utilization
Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable

CAM Utilization for ASIC  [0]
 Table                  Subtype      Dir      Max     Used    %Used       V4       V6     MPLS    Other
 ------------------------------------------------------------------------------------------------------
 Mac Address Table      EM           I       32768       20    0.06%        0        0        0       20
 Mac Address Table      TCAM         I        1024       21    2.05%        0        0        0       21
 L3 Multicast           EM           I        8192        0    0.00%        0        0        0        0
 L3 Multicast           TCAM         I         512        9    1.76%        3        6        0        0
 L2 Multicast           EM           I        8192        0    0.00%        0        0        0        0
 L2 Multicast           TCAM         I         512       11    2.15%        3        8        0        0
 IP Route Table         EM           I       24576     2023    8.23%       14        0     2009        0  
 IP Route Table         TCAM         I        8192     1025   12.51%     1012       10        2        1  

<-- 25 base + 1000 /28 prefixes = 1025 TCAM entries
<-- MPLS labels are added to EM, and each MPLS label uses 2 entries (one IPv4 prefix, and one MPLS label results in 3 entries used in hardware)
    

C9300-48U#show platform software fed switch active mpls summary | b Resource shar
  Resource sharing info:
    SI: 4/65536
    RI: 1010/65536                                                      
    Well Known Index: 49/2048
    Tcam: 1021/57344                      
    lv1_ecr: 0/64 
    lv2_ecr: 0/256
    lspa: 0/16385                        
    label_stack_id: 1002/65537                                 
    vpn_spoke_id: 0/255
    indirect_si: 0/255
  RSM resource database stats:
    Num of (L3+mpls) ADJ entries allocated: 1036/131072 
    Num of LABEL entries allocated: 1004/8192               <-- Increased by 1000 on local PE 
    Num of LSPA entries allocated: 0/8192                   <-- No prefixes learnt from remote PE, no LSPA allocated 
    Num of local adjs in mpls adjs: 3
    Num of SI stats allocated: 1006/49152
    Adjs stats allocated by MPLS:
    Num of mpls adjs: 1011              
      Num of L3 adjs: 0
    Num of VPN prefix_id: 0               
<...snip...>
  Other MPLS resource alloc error stats:  <-- no resource allocation issues 
    LENTRY out-of-resource errors: 0
    LENTRY general errors: 0
    LSPA out-of-resource errors: 0
    LSPA general errors: 0
    ADJ out-of-resource errors: 0
    SI stats alloc error: 0
    MPLS ADJ stats error: 0
    MPLS ADJ stats last error rc: 0

<-- Resources shown in baseline outputs are now increased by 1000

9500H远程PE（通过MPLS获取）

C9500-24Y4C#show platform hardware fed active fwd-asic resource tcam utilization
Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable

CAM Utilization for ASIC  [0]
 Table                  Subtype      Dir      Max     Used    %Used       V4       V6     MPLS    Other
 ------------------------------------------------------------------------------------------------------
 Mac Address Table      EM           I       32768       19    0.06%        0        0        0       19
 Mac Address Table      TCAM         I         768       21    2.73%        0        0        0       21
 L3 Multicast           EM           I       32768        0    0.00%        0        0        0        0
 L3 Multicast           TCAM         I         768        6    0.78%        3        3        0        0
 L2 Multicast           TCAM         I        2304        7    0.30%        3        4        0        0
 IP Route Table         EM/LPM       I      212992     1012    0.48%     1003        0        9        0   
 IP Route Table         TCAM         I        1536       28    1.82%       23        3        2        0
 CTS Cell Matrix/VPN
 Label                  EM           O       32768      992    3.03%        0        0      992        0   <-- MPLS VPN used 992 entries
 CTS Cell Matrix/VPN
 Label                  TCAM         O         768        9    1.17%        0        0        8        1

<-- 1000 /28 IPv4 prefixes learned from remote PE (On the 9500HP these /28 prefixes are be stored in EM/LPM memory, not TCAM) 
<-- Hardware shared between CTS and VPN (resource is used when prefixes learned PE-PE, label imposition)

C9500-24Y4C#show platform software fed active mpls summary | b Resource shar
  Resource sharing info:
    SI: 4/131072
    RI: 11/98304                                          
    Well Known Index: 48/2048
    Tcam: 20/245760
    lv1_ecr: 0/64
    lv2_ecr: 0/256
    lspa: 1000/65536                                      
    label_stack_id: 2/65537                                
    vpn_spoke_id: 0/255
    indirect_si: 0/255
  RSM resource database stats:
    Num of (L3+mpls) ADJ entries allocated: 37/196608
    Num of LABEL entries allocated: 4/45056                <-- LABEL does not increase (no prefixes learnt from a local CE)
    Num of LSPA entries allocated: 1000/32768              <-- LSPA usage increased by 1000 (these prefixes require label stack to reach)       
    Num of local adjs in mpls adjs: 4
    Num of SI stats allocated: 6/49152
    Adjs stats allocated by MPLS:
      Num of mpls adjs: 12
      Num of L3 adjs: 0
    Num of VPN prefix_id: 1000                             
  AL MPLS SI/RI resource alloc stats:
    SI allocated: 1
    RI allocated: 6
    SI_STATS allocated: 6
    Unknowns allocs: 0
    Alloc no resource: 0
    Alloc errors: 0
    Free errors: 0
    Invalid free: 0
    Free unknown: 0
  Other MPLS resource alloc error stats:                  <-- no resource allocation issues 
    LENTRY out-of-resource errors: 0
    LENTRY general errors: 0
    LSPA out-of-resource errors: 0
    LSPA general errors: 0
    ADJ out-of-resource errors: 0
    SI stats alloc error: 0
    MPLS ADJ stats error: 0
    MPLS ADJ stats last error rc: 0

<-- Different resources are allocated to reach a local prefix (LABEL) versus a remote prefix (LSPA)

注意：有关Catalyst 9000 TCAM的一般信息，或有关如何检查TCAM以了解其他功能的详细信息，请参阅了解Catalyst 9000交换机上的硬件资源。

注意：ADJ（邻接）是共享资源。要对ADJ的问题进行故障排除，请参阅了解Catalyst 9000交换机上的硬件资源。

MPLS标签和IPv4扩展限制和补救

在大多数情况下，当使用MPLS功能且消耗了太多硬件资源时，将标签分配从（默认）每前缀更改为每vrf会有所帮助。在本例中，请考虑资源分配前后(在本例中，9500是CE-PE设备)。

### Usage with per-prefix label allocation ###

C9500-24Y4C#show platform hardware fed active fwd-asic resource tcam utilization
Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable

CAM Utilization for ASIC  [0]
 Table                  Subtype      Dir      Max     Used    %Used       V4       V6     MPLS    Other
 ------------------------------------------------------------------------------------------------------
 Mac Address Table      EM           I       32768       19    0.06%        0        0        0       19
 Mac Address Table      TCAM         I         768       21    2.73%        0        0        0       21
 L3 Multicast           EM           I       32768        0    0.00%        0        0        0        0
 L3 Multicast           TCAM         I         768        6    0.78%        3        3        0        0
 L2 Multicast           TCAM         I        2304        7    0.30%        3        4        0        0
 IP Route Table         EM/LPM       I      212992     3023    1.42%     1014        0     2009        0  <-- 1 IPv4 prefix entry + 2 entries for labels (2 labels created per every 1 IPv4 prefix)
 IP Route Table         TCAM         I        1536       17    1.11%       12        3        2        0


### New usage after change to per-vrf lable allocation ###
C9500-24Y4C(config)#mpls label mode vrf MPLS protocol all-afs per-vrf

C9500-24Y4C#show bgp vpnv4 unicast all
BGP table version is 164901, local router ID is 10.0.0.5
     Network          Next Hop            Metric LocPrf Weight Path
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
              x best-external, a additional-path, c RIB-compressed,
              t secondary path, L long-lived-stale,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
      Network        Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 1:1 (default for vrf MPLS)
 *>   172.30.0.0/24    192.168.3.2           2219             0 65100 65101 65102 65103 {65104} e
<...snip...>

C9500-24Y4C#show bgp vpnv4 unicast all 172.30.0.0
BGP routing table entry for 1:1:172.30.0.0/24, version 163902
Paths: (1 available, best #1, table MPLS)
  Advertised to update-groups:
     8
  Refresh Epoch 1
  65100 65101 65102 65103 {65104}
    192.168.3.2 (via vrf MPLS) from 192.168.3.2 (192.168.3.2)
      Origin EGP, metric 2219, localpref 100, valid, external, best
      Extended Community: RT:1:1
      mpls labels in/out IPv4 VRF Aggr:18116/nolabel    <-- Verify you see a 'VRF Aggr' label type 
      rx pathid: 0, tx pathid: 0x0
      Updated on Dec 9 2021 19:50:22 UTC


### Usage with per-vrf label allocation ###
Allocation on both local and remote PE is dramatically reduced via change to label allocation mode

local switch (PE-CE)
C9500-24Y4C#show platform hardware fed active fwd-asic resource tcam utilization
Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable

CAM Utilization for ASIC  [0]
 Table                  Subtype      Dir      Max     Used    %Used       V4       V6     MPLS    Other
 ------------------------------------------------------------------------------------------------------
 Mac Address Table      EM           I       32768       19    0.06%        0        0        0       19
 Mac Address Table      TCAM         I         768       21    2.73%        0        0        0       21
 L3 Multicast           EM           I       32768        0    0.00%        0        0        0        0
 L3 Multicast           TCAM         I         768        6    0.78%        3        3        0        0
 L2 Multicast           TCAM         I        2304        7    0.30%        3        4        0        0
 IP Route Table         EM/LPM       I      212992     1025    0.48%     1014        0       11        0  <-- one local LABEL used to reach the CE learnt prefixes
 IP Route Table         TCAM         I        1536       17    1.11%       12        3        2        0
 QOS ACL                TCAM         I        1024       45    4.39%       15       20        0       10


remote switch (PE-PE)
C9300-48U#show platform hardware fed switch active fwd-asic resource tcam utilization
Codes: EM - Exact_Match, I - Input, O - Output, IO - Input & Output, NA - Not Applicable

CAM Utilization for ASIC  [0]
 Table                  Subtype      Dir      Max     Used    %Used       V4       V6     MPLS    Other
 ------------------------------------------------------------------------------------------------------
<...snip...>
 IP Route Table         EM           I       24576       23    0.09%       14        0        9        0
 IP Route Table         TCAM         I        8192     1025   12.51%     1012       10        2        1  <-- Still 1:1 usage for IPv4 prefixes
<...snip...>
 CTS Cell Matrix/VPN
 Label                  EM           O        8192        1    0.01%        0        0        1        0  <-- one remote LSPA used to reach the PE learnt prefixes

注意：show platform software fed switch active mpls summary中的资源使用情况也显示LABEL或LSPA（以适用者为准）中的这种减少。

为TAC收集的命令

本指南介绍了与MPLS相关的最常见硬件资源问题，并采取了相应的补救步骤。但是，如果本指南未解决您的问题，请收集显示的命令列表并将其附加到服务请求。

show ip route summary
show ip bgp vpnv4 all | redirect flash:bgp_vpnv4_all
show ip bgp vpnv4 all summary
show ip route vrf  <vrf-name>  summary   
show mpls forwarding-table summary
show ip cef vrf <name>  | redirect flash:sh_ip_cef_vrf_<name>
show ip cef vrf <name> summary 
show platform software fed switch active ip route summary
show platform software mpls switch <all switches> f0 forwarding-table
show platform software mpls switch <all switches>  f0 label
show platform software mpls switch <all switches>  f0 eos
show platform software object-manager switch <all switches>  f0 error-object
show platform software object-manager switch <all switches>  f0 pending-issue-update
show platform software fed switch <all switches>  mpls label_oce all detail
show platform software fed switch  <all switches> mpls eos all det
show platform software fed switch <all switches> mpls summary     
show platform software fed switch active mpls forwarding all detail
show platform software object-manager switch 1 f0 statistics 
show tech-support mpls | redirect flash:sh_tech_mpls
show logging | redirect flash:sh_logging_console
show platform hard fed switch active fwd resource tcam table sghash asic 0 format 0 | redirect flash:vpn_lspa

request platform software trace archive last 30 days target flash

版本	发布日期	备注
3.0	08-Mar-2022	调整的表格格式
2.0	03-Mar-2022	再修改一个标题
1.0	25-Feb-2022	初始版本

验证Catalyst 9000交换机上的MPLS

下载选项

非歧视性语言

关于此翻译

目录

简介

先决条件

要求

使用的组件

背景信息

术语

配置和验证

场景1.在MPLS核心中具有单跳邻接的L3VPN

配置细节

基本验证

前缀编程

VPNv4标签编程

LDP标签编程

场景2.在PE和P路由器之间使用ECMP的L3VPN

配置细节

基本验证

前缀编程

VPNv4标签编程

LDP标签编程

硬件扩展故障排除

MPLS硬件系统日志

硬件验证命令

MPLS标签和IPv4扩展限制和补救

为TAC收集的命令

相关信息

修订历史记录

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联系我们

本文档适用于以下产品

验证Catalyst 9000交换机上的MPLS

下载选项

非歧视性语言

关于此翻译

目录

简介

先决条件

要求

使用的组件

背景信息

术语

配置和验证

场景1.在MPLS核心中具有单跳邻接的L3VPN

配置 细节

基本验证

前缀编程

VPNv4标签编程

LDP标签编程

场景2.在PE和P路由器之间使用ECMP的L3VPN

配置 细节

基本验证

前缀编程

VPNv4标签编程

LDP标签编程

硬件扩展故障排除

MPLS硬件系统日志

硬件验证命令

MPLS标签和IPv4扩展限制和补救

为TAC收集的命令

相关信息

修订历史记录

由思科工程师提供

此文档是否有帮助?

联系我们

本文档适用于以下产品

配置细节

配置细节