排除SDA轉發東 — 西流量故障
簡介
本文說明如何驗證作為軟體定義訪問(SDA)一部分的East-West Traffic Flow。
必要條件
需求
思科建議您瞭解以下主題：
- 網際網路通訊協定(IP)轉送
- Locator/ID Separation Protocol(LISP)
採用元件
本文中的資訊係根據以下軟體和硬體版本：
- Cisco IOS® XE 17.10.1上的C9000v
- SDA 1.0（非LISP PubSub）
本文中的資訊是根據特定實驗室環境內的裝置所建立。文中使用到的所有裝置皆從已清除（預設）的組態來啟動。如果您的網路運作中，請確保您瞭解任何指令可能造成的影響。
相關產品
本文件也適用於以下硬體和軟體版本：
- C9200
- C9300
- C9400
- C9500
- C9600
- Cisco IOS® XE 16.12及更高版本
背景資訊
SDA東 — 西流量流指的是SDA交換矩陣內的一個端點希望與同一交換矩陣內的另一個端點通訊的概念。關於什麼是東向西流、什麼又不認為是東西向流，有一些警告。東 — 西流量可以是以下示例：
- 位於同一子網（172.17.10.2與172.19.10.3通訊）中的終端被視為L2LISP擴展
- 位於同一VRF(VN)中的端點（172.19.10.2與172.19.11.2通話且兩者均位於VRF園區中）這被視為L3 LISP
- 交換矩陣內的終端與連線到L2切換邊界的主機進行通訊，與L2LISP完全相同
東 — 西流量不引用以下示例：
- 從SDA交換矩陣發往交換矩陣外部的流量，即南北流量
- VRF間路由也不視為東 — 西（VRF園區中的端點，IP地址172.19.10.2與VRF訪客中的端點通話，IP地址172.19.11.2）
- SD-WAN整合域
- SDA傳輸
- 邊界關聯
- Extranet
拓撲
在本示例中，C9000v交換機用作交換矩陣邊緣和並置邊界。所有終端都位於同一個虛擬網路(VN)中，即red_vn。10.47.4.2和10.47.4.2上的端點位於同一子網中，10.47.10.2上的端點位於不同子網中，但使用相同的VN。
組態
假設使用CIsco DNA-Center來預配SDA交換矩陣，預設設定如下：
- 已啟用第2層擴展（這將強制根據MAC地址查詢而不是IP地址查詢來轉發流量）。
- 第2層泛洪被禁用（這樣會在邊緣裝置上啟用ARP抑制並輔助LISP進行ARP學習）。
在正確的主機登入過程之後，介面配置包含幾個部分：
交換矩陣邊緣(10.47.1.12)介面配置：
interface GigabitEthernet1/0/3 switchport access vlan 1026 switchport mode access device-tracking attach-policy IPDT_POLICY spanning-tree portfast spanning-tree bpduguard enable end interface Vlan1026 description Configured from Cisco DNA-Center mac-address 0000.0c9f.f341 vrf forwarding red_vn ip address 10.47.4.1 255.255.255.0 ip helper-address 10.47.9.9 no ip redirects ip route-cache same-interface no lisp mobility liveness test lisp mobility red-IPV4 end
交換矩陣邊緣(10.47.1.12)LISP配置：
router lisp locator-table default locator-set rloc_222e1707-175d-4019-a783-060404f8bc2f IPv4-interface Loopback0 priority 10 weight 10 exit-locator-set
!
instance-id 4099 remote-rloc-probe on-route-change dynamic-eid red-IPV4 database-mapping 10.47.4.0/24 locator-set rloc_222e1707-175d-4019-a783-060404f8bc2f exit-dynamic-eid ! dynamic-eid red-helpdesk-IPV4 database-mapping 10.47.10.0/24 locator-set rloc_222e1707-175d-4019-a783-060404f8bc2f exit-dynamic-eid ! service ipv4 eid-table vrf red_vn map-cache 0.0.0.0/0 map-request sgt distribution sgt exit-service-ipv4 ! exit-instance-id
!
! instance-id 8190 remote-rloc-probe on-route-change service ethernet eid-table vlan 1026 database-mapping mac locator-set rloc_222e1707-175d-4019-a783-060404f8bc2f dynamic-eid detection multiple-addr bridged-vm exit-service-ethernet ! exit-instance-id ! instance-id 8192 remote-rloc-probe on-route-change service ethernet eid-table vlan 1028 database-mapping mac locator-set rloc_222e1707-175d-4019-a783-060404f8bc2f dynamic-eid detection multiple-addr bridged-vm exit-service-ethernet ! exit-instance-id
交換矩陣邊緣(10.47.1.13)介面配置：
interface GigabitEthernet1/0/3 switchport access vlan 1026 switchport mode access device-tracking attach-policy IPDT_POLICY spanning-tree portfast spanning-tree bpduguard enable end ! interface GigabitEthernet1/0/5 switchport access vlan 1028 switchport mode access device-tracking attach-policy IPDT_POLICY spanning-tree portfast spanning-tree bpduguard enable end ! interface Vlan1026 description Configured from Cisco DNA-Center mac-address 0000.0c9f.f341 vrf forwarding red_vn ip address 10.47.4.1 255.255.255.0 ip helper-address 10.47.9.9 no ip redirects ip route-cache same-interface no lisp mobility liveness test lisp mobility red-IPV4 end ! interface Vlan1028 description Configured from Cisco DNA-Center mac-address 0000.0c9f.f800 vrf forwarding red_vn ip address 10.47.10.1 255.255.255.0 ip helper-address 10.47.9.9 no ip redirects ip route-cache same-interface no lisp mobility liveness test lisp mobility red-helpdesk-IPV4 end
交換矩陣邊緣(10.47.1.13)LISP配置
router lisp locator-table default locator-set rloc_691b1fe4-5264-44c2-bb1b-0903b3eb2c51 IPv4-interface Loopback0 priority 10 weight 10 exit-locator-set ! instance-id 4099 remote-rloc-probe on-route-change dynamic-eid red-IPV4 database-mapping 10.47.4.0/24 locator-set rloc_691b1fe4-5264-44c2-bb1b-0903b3eb2c51 exit-dynamic-eid ! dynamic-eid red-helpdesk-IPV4 database-mapping 10.47.10.0/24 locator-set rloc_691b1fe4-5264-44c2-bb1b-0903b3eb2c51 exit-dynamic-eid ! service ipv4 eid-table vrf red_vn map-cache 0.0.0.0/0 map-request sgt distribution sgt exit-service-ipv4 ! exit-instance-id ! instance-id 8190 remote-rloc-probe on-route-change service ethernet eid-table vlan 1026 database-mapping mac locator-set rloc_691b1fe4-5264-44c2-bb1b-0903b3eb2c51 dynamic-eid detection multiple-addr bridged-vm exit-service-ethernet ! exit-instance-id ! instance-id 8192 remote-rloc-probe on-route-change service ethernet eid-table vlan 1028 database-mapping mac locator-set rloc_691b1fe4-5264-44c2-bb1b-0903b3eb2c51 dynamic-eid detection multiple-addr bridged-vm exit-service-ethernet ! exit-instance-id
主機加入驗證
作為主機自註冊過程的一部分，將建立以下幾種結構：
IPDT/IP裝置追蹤專案
主機載入成功後，IP裝置追蹤(IPDT)表中存在有效專案，且終端主機標籤為REACHABLE:
Edge-1#show device-tracking database interface g1/0/3
portDB has 2 entries for interface Gi1/0/3, 2 dynamic
Codes: L - Local, S - Static, ND - Neighbor Discovery, ARP - Address Resolution Protocol, DH4 - IPv4 DHCP, DH6 - IPv6 DHCP, PKT - Other Packet, API - API created
Preflevel flags (prlvl):
0001:MAC and LLA match 0002:Orig trunk 0004:Orig access
0008:Orig trusted trunk 0010:Orig trusted access 0020:DHCP assigned
0040:Cga authenticated 0080:Cert authenticated 0100:Statically assigned
Network Layer Address Link Layer Address Interface vlan prlvl age state Time left
DH4 10.47.4.2 5254.0019.93e9 Gi1/0/3 1026 0024 3mn REACHABLE 28 s try 0(15198 s)
MAC/ARP條目
當終端主機成功登入時，它可以ping通預設網關（或者，如果在阻止此通訊的終端上沒有安裝防火牆，則可以從預設網關ping通）：
Edge-1#ping vrf red_vn 10.47.4.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.47.4.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 142/150/161 ms
在邊緣節點上，有一個MAC地址，以及表中相應的ARP條目（在VRF中）：
Edge-1#show mac address-table interface g1/0/3
Mac Address Table
-------------------------------------------
Vlan Mac Address Type Ports
---- ----------- -------- -----
1026 5254.0019.93e9 DYNAMIC Gi1/0/3
Total Mac Addresses for this criterion: 1
Edge-1#show ip arp vrf red_vn
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.47.4.1 - 0000.0c9f.f341 ARPA Vlan1026
Internet 10.47.4.2 1 5254.0019.93e9 ARPA Vlan1026
Internet 10.47.10.1 - 0000.0c9f.f800 ARPA Vlan1028
軟體FED MAC地址程式設計**
要檢查FED中的MAC地址，請使用show platform software fed switch active matm macTable vlan <vlan id> mac <mac address>命令
Edge-1#show platform software fed switch active matm macTable vlan 1026 mac 5254.0019.93e9 VLAN MAC Type Seq# EC_Bi Flags machandle siHandle riHandle diHandle *a_time *e_time ports Con ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 1026 5254.0019.93e9 0x1 9 0 0 0x7f65ec7bda68 0x7f65ec7c21f8 0x0 0x7f65ec6e1368 300 7 GigabitEthernet1/0/3 Yes ======platform hardware details ====== Asic: 0 htm-handle = 0x7f65ec95dc68 MVID = 7 gpn = 1 SI = 0xc3 RI = 0x25 DI = 0x526e DI = 0x526e pmap = 0x00000000 0x00000004 pmap_intf : [GigabitEthernet1/0/3] Asic: 1 SI = 0xc3 RI = 0x25 DI = 0x526e DI = 0x526e pmap = 0x00000000 0x00000000
**MAC地址macHandle程式設計**
從上一個命令(0x7f65ec7bda68)獲取macHandle值，並用於show platform hardware fed switch active fwd-asic abstraction print-resource-handle <macHandle> 1
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ec7bda68 1
Handle:0x7f65ec7bda68 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L2 Lkp-ftr-id:LKP_FEAT_L2_SRC_MAC_VLAN ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f65ec95dc68
Features sharing this resource:Cookie length: 12
19 00 54 52 e9 93 07 80 07 00 00 00
Detailed Resource Information (ASIC_INSTANCE# 0)
----------------------------------------
Number of HTM Entries: 1
Entry 0: (handle 0x7f65ec95dc68)
Absolute Index: 6778
Time Stamp: 4
KEY - vlan:7 mac:0x5254001993e9 l3_if:0 gpn:3 epoch:0 static:0 flood_en:0 vlan_lead_wless_flood_en: 0 client_home_asic: 0 learning_peerid 0, learning_peerid_valid 0 lvx:1
MASK - vlan:0 mac:0x0 l3_if:0 gpn:0 epoch:0 static:0 flood_en:0 vlan_lead_wless_flood_en: 0 client_home_asic: 0 learning_peerid 0, learning_peerid_valid 0 lvx:0
SRC_AD - need_to_learn:0 lrn_v:0 catchall:0 static_mac:0 chain_ptr_v:0 chain_ptr: 0 static_entry_v:0 auth_state:0 auth_mode:0 auth_behavior_tag:0 traf_m:0 is_src_ce:0
DST_AD - si:0xb7 bridge:0 replicate:0 blk_fwd_o:0 v4_rmac:0 v6_rmac:0 catchall:0 ign_src_lrn:0 port_mask_o:0 afd_cli_f:0 afd_lbl:0 prio:3 dest_mod_idx:0 destined_to_us:0 pv_trunk:0 smr:0
==============================================================
**MVID驗證**
上一個輸出中的數字7是硬體中的對映VLAN ID(MVID)。若要確認它們是否與「真實」vlan相符，請使用show platform software fed switch active vlan <vlan number>
Edge-1#show platform software fed switch active vlan 1026 VLAN Fed Information Vlan Id IF Id LE Handle STP Handle L3 IF Handle SVI IF ID MVID ----------------------------------------------------------------------------------------------------------------------- 1026 0x0000000000420011 0x00007f65ec6a08b8 0x00007f65ec6a1138 0x00007f65ec77e838 0x000000000000001d 7
**全域連線埠號碼(GPN)驗證**
要將GPN與「真實」介面相關聯，請使用命令show platform software fed switch active ifm mappings gpn
Edge-1#show platform software fed switch active ifm mappings gpn
Mappings Table
GPN Interface IF_ID IF_TYPE
--------------------------------------------------------------------------------------------------
1 GigabitEthernet1/0/1 0x0000001a ETHER
2 GigabitEthernet1/0/2 0x0000001b ETHER
3 GigabitEthernet1/0/3 0x0000000b ETHER <-- GPN 3 lines up with the expected Egress interface
**MAC Address siHandle Programming**
從上一個命令(0x7f65ec7c21f8)獲取siHandle值，並在show platform hardware fed switch active fwd-asic abstraction print-resource-handle <si_handle> 1中使用
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ec7c21f8 1
Handle:0x7f65ec7c21f8 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:2
priv_ri/priv_si Handle: 0x7f65ec7c2498Hardware Indices/Handles: index0:0xc3 mtu_index/l3u_ri_index0:0x0 index1:0xc3 mtu_index/l3u_ri_index1:0x0
Features sharing this resource:66 (1)]
57 (1)]
Cookie length: 56
00 00 00 00 00 00 00 00 02 04 00 00 00 00 00 00 00 00 00 00 07 00 52 54 00 19 93 e9 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_INSTANCE# 0)
----------------------------------------
Station Index (SI) [0xc3] <-- Station Index is comprised of the Rewrite Index (RI) and Destination Index (DI) RI = 0x25 <-- Rewrite Index contains the forwarding information DI = 0x526e <-- Destination Index contains information related to the outgoing interface
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0
rcpServiceId = 0
dejaVuPreCheckEn = 0x1
Replication Bitmap: LD <-- Local Data (LD) indicates that the destination is on this ASIC
Detailed Resource Information (ASIC_INSTANCE# 1)
----------------------------------------
Station Index (SI) [0xc3] <-- Station Index is comprised of the Rewrite Index (RI) and Destination Index (DI) RI = 0x25 <-- Rewrite Index contains the forwarding information DI = 0x526e <-- Destination Index contains information related to the outgoing interface
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0
rcpServiceId = 0
dejaVuPreCheckEn = 0x1
Replication Bitmap: CD <-- Core Data (CD) indicates that the destination is on the same ASIC, different core ==============================================================
**MAC位址重寫 — 索引驗證**
從上一個命令(0x25)獲取RI值，並在show platform hardware fed switch active fwd-asic resource asic all rewrite-index range <RI> <RI>中使用
Edge-1#show platform hardware fed switch active fwd-asic resource asic all rewrite-index range 0x25 0x25
ASIC#:0 RI:37 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9)
MAC Addr: MAC Addr: 52:54:00:19:93:e9,
L3IF LE Index 41
ASIC#:0 RI:38 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9)
MAC Addr: MAC Addr: 01:00:5e:00:00:00,
L3IF LE Index 40
ASIC#:0 RI:39 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9)
MAC Addr: MAC Addr: 52:54:00:00:50:17,
L3IF LE Index 40
ASIC#:1 RI:37 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9)
MAC Addr: MAC Addr: 52:54:00:19:93:e9,
L3IF LE Index 41
ASIC#:1 RI:38 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9)
MAC Addr: MAC Addr: 01:00:5e:00:00:00,
L3IF LE Index 40
ASIC#:1 RI:39 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9)
MAC Addr: MAC Addr: 52:54:00:00:50:17,
L3IF LE Index 40
**MAC Address Destination-Index驗證**
從上一個命令(0x526e)獲取DI值，並在show platform hardware fed switch active fwd-asic resource asic all destination-index range <DI> <DI>中使用
Edge-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x526e 0x526e
ASIC#0:
Destination index = 0x526e
pmap = 0x00000000 0x00000004 <-- Convert decimal 4 to binary, which is 0100. Count this binary right to left, zero-based, so Port 2. pmap_intf : [GigabitEthernet1/0/3]
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:
Destination index = 0x526e
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
**連線埠驗證**
要關聯先前看到的埠，請使用show platform software fed switch active ifm mappings命令並檢視Port列。
Edge-1#show platform software fed switch active ifm mappings ------------------ show platform software fed switch active ifm mappings ------------------ Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active GigabitEthernet1/0/1 0x1a 0 0 0 0 0 1 0 1 1 NIF Y GigabitEthernet1/0/2 0x1b 0 0 0 1 0 2 1 2 2 NIF Y GigabitEthernet1/0/3 0xb 0 0 0 2 0 3 2 3 3 NIF Y <-- Matches port 2 from previous output
**硬體饋送的MAC地址驗證**
工作/理想情況下的此輸出與macHandle解碼器提供的輸出匹配。
Edge-1#show platform hardware fed switch active matm macTable vlan 1026 mac 5254.0019.93e9 HEAD: MAC address 5254.0019.93e9 in VLAN 1026 KEY: vlan 7, mac 0x5254001993e9, l3_if 0, gpn 3, epoch 0, static 0, flood_en 0, vlan_lead_wless_flood_en 0, client_home_asic 0, learning_peerid 0, learning_peerid_valid 0 MASK: vlan 0, mac 0x0, l3_if 0, gpn 0, epoch 0, static 0, flood_en 0, vlan_lead_wless_flood_en 0, client_home_asic 0 learning_peerid 0, learning_peerid_valid 0 SRC_AD: need_to_learn 0, lrn_v 0, catchall 0, static_mac 0, chain_ptr_v 0, chain_ptr 0, static_entry_v 0, auth_state 0, auth_mode 0, traf_mode 0, is_src_ce 0 DST_AD: si 0xb7, bridge 0, replicate 0, blk_fwd_o 0, v4_mac 0, v6_mac 0, catchall 0, ign_src_lrn 0, port_mask_o 0, afd_cli_f 0, afd_lbl 0, priority 3, dest_mod_idx 0, destined_to_us 0, pv_trunk 0 Total Mac number of addresses:: 1
- 硬體中的VLAN ID(MVID)為7
- MAC地址：5254.0019.93e9
- GPN:3
LISP條目
主機登入成功後，終端主機的LISP條目在邊緣節點本地建立，並在控制節點上註冊（LISP MSMR - LISP對映伺服器/對映解析器）。對於可以為L2和L3檢查的特定例項ID範圍，需要進行所有LISP檢查：
Edge-1#show vlan id 1026 VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1026 red active L2LI0:8190, Gi1/0/3 <-- L2 LISP Instance ID tied to VLAN 1026
**L2 LISP資料庫驗證**
要檢查L2 LISP資料庫，請使用命令show lisp instance-id <L2 LISP ID> ethernet database <mac address>
Edge-1#show lisp instance-id 8190 ethernet database 5254.0019.93e9 LISP ETR MAC Mapping Database for LISP 0 EID-table Vlan 1026 (IID 8190), LSBs: 0x1 Entries total 1, no-route 0, inactive 0, do-not-register 2 5254.0019.93e9/48, dynamic-eid Auto-L2-group-8190, inherited from default locator-set rloc_222e1707-175d-4019-a783-060404f8bc2f -----> Endpoint MAC Uptime: 2d17h, Last-change: 2d17h Domain-ID: local Service-Insertion: N/A Locator Pri/Wgt Source State 10.47.1.12 10/10 cfg-intf site-self, reachable -----> Our own RLOC Map-server Uptime ACK Domain-ID 10.47.1.10 1d11h Yes 0 -----> RLOC of upstream collocated border 10.47.1.11 2d17h Yes 0 -----> RLOC of upstream collocated border
**LISP L2地址解析(AR)資料庫驗證**
要檢查LISP L2 AR資料庫，請使用命令show lisp instance-id <LISP L2 IID> ethernet database address-resolution <mac address>
Edge-1#show lisp instance-id 8190 ethernet database address-resolution 5254.0019.93e9 LISP ETR Address Resolution for LISP 0 EID-table Vlan 1026 (IID 8190) (*) -> entry being deleted Hardware Address L3 InstID Host Address 5254.0019.93e9 4099 10.47.4.2/32 <-- Endpoint MAC Address, LISP L3 Instance ID, Endpoint IPv4 Address, respectively
**LISP第3層資料庫驗證**
要檢查LISP第3層資料庫，請使用命令show lisp instance-id <LISP L3 IID> ipv4資料庫<IP地址/子網掩碼>
Edge-1#show lisp instance-id 4099 ipv4 database 10.47.4.2/32 LISP ETR IPv4 Mapping Database for LISP 0 EID-table vrf red_vn (IID 4099), LSBs: 0x1 Entries total 1, no-route 0, inactive 0, do-not-register 1 10.47.4.2/32, dynamic-eid red-IPV4, inherited from default locator-set rloc_222e1707-175d-4019-a783-060404f8bc2f -----> Endpoint IPv4 Address Uptime: 2d18h, Last-change: 2d18h Domain-ID: local Service-Insertion: N/A Locator Pri/Wgt Source State 10.47.1.12 10/10 cfg-intf site-self, reachable -----> Our own RLOC Map-server Uptime ACK Domain-ID 10.47.1.10 1d11h Yes 0 -----> RLOC of upstream collocated border 10.47.1.11 2d17h Yes 0 -----> RLOC of upstream collocated border
**CEF驗證**
要檢查CEF，請使用命令show ip cef vrf <vrf name> <IP address> internal
Edge-1#show ip cef vrf red_vn 10.47.4.2 internal
10.47.4.2/32, epoch 1, flags [att, sc], RIB[D], refcnt 6, per-destination sharing
sources: RIB, Adj, IPL
feature space:
IPRM: 0x00058000
Broker: linked, distributed at 3rd priority
subblocks:
SC owned,sourced: LISP local EID -
SC inherited: LISP remote EID - locator status bits 0x00000000
SC inherited: LISP cfg dyn-EID - LISP configured dynamic-EID
LISP EID attributes: localEID Yes, c-dynEID Yes, d-dynEID Yes, a-dynEID No
SC owned,sourced: LISP generalised SMR - [disabled, not inheriting, 0x7F06D0A67E40 locks: 1]
Adj source: IP adj out of Vlan1026, addr 10.47.4.2 7F06D300B738
Dependent covered prefix type adjfib, cover 10.47.4.0/24
2 IPL sources [no flags]
ifnums:
Vlan1026(29): 10.47.4.2
path list 7F06CEE8D720, 3 locks, per-destination, flags 0x49 [shble, rif, hwcn]
path 7F06D0A900C8, share 1/1, type attached nexthop, for IPv4
nexthop 10.47.4.2 Vlan1026, IP adj out of Vlan1026, addr 10.47.4.2 7F06D300B738
output chain:
IP adj out of Vlan1026, addr 10.47.4.2 7F06D300B738
除了SDA邊緣節點上的本地LISP條目外，SDA控制節點(LISP MS/MR)還包含有關終端的額外資訊：
並置邊界L2 LISP伺服器驗證：
要檢查L2 LISP伺服器，請使用命令show lisp instance-id <L2 LISP ID> ethernet server <MAC Address>
Border-1#show lisp instance-id 8190 ethernet server 5254.0019.93e9
LISP Site Registration Information
Site name: site_uci
Description: map-server configured from Cisco DNA-Center
Allowed configured locators: any
Requested EID-prefix:
EID-prefix: 5254.0019.93e9/48 instance-id 8190 <-- Endpoint MAC Address
First registered: 2w5d
Last registered: 3d16h
Routing table tag: 0
Origin: Dynamic, more specific of any-mac
Merge active: No
Proxy reply: Yes
Skip Publication: No
Force Withdraw: No
TTL: 1d00h
State: complete
Extranet IID: Unspecified
Registration errors:
Authentication failures: 0
Allowed locators mismatch: 0
ETR 10.47.1.12:21038, last registered 3d16h, proxy-reply, map-notify <-- Egress Tunnel Router (Fabric Edge IP address)
TTL 1d00h, no merge, hash-function sha1
state complete, no security-capability
nonce 0xB60C4314-0x97BB332D
xTR-ID 0xAB3179F6-0xC774F22C-0x00F2C82E-0x3A66738D
site-ID unspecified
Domain-ID local
Multihoming-ID unspecified
sourced by reliable transport
Locator Local State Pri/Wgt Scope
10.47.1.12 yes up 10/10 IPv4 none <--(Fabric Edge IP address)
並置邊界L2 LISP地址解析(AR)伺服器驗證：
要檢查L2 LISP AR伺服器，請使用命令show lisp instance-id <LISP L2 IID> ethernet server address-resolution <IP address>
要檢查註冊歷史記錄，請使用命令show lisp instance-id <LISP L2 IID> ethernet server address-resolution <IP address> registration-history
Border-1#show lisp instance-id 8190 ethernet server address-resolution 10.47.4.2 Address-resolution data for router lisp 0 instance-id 8190 Site name: site_uci Host Address: 10.47.4.2/32 Hardware Address: 5254.0019.93e9 First registered: 2w5d Last registered: 3d16h Registration errors: Authentication failures: 0 ETR 10.47.1.12:21038 Last registered: 3d16h TTL: 1d00h xTR-ID: 0xAB3179F6-0xC774F22C-0x00F2C82E-0x3A66738D Site-ID: unspecified Registered addr: 5254.0019.93e9 L3 Instance ID: 4099
Border-1#show lisp instance-id 8190 ethernet server address-resolution 10.47.4.2 registration-history Map-Server registration history Roam = Did host move to a new location? WLC = Did registration come from a Wireless Controller? Prefix qualifier: + = Register Event, - = Deregister Event, * = AR register event Timestamp (UTC) Instance Proto Roam WLC Source EID prefix / Locator *Sep 29 16:50:27.762 8190 TCP No No 10.47.1.12 +*10.47.4.2/32 / 5254.0019.93e9 *Oct 1 21:05:11.086 8190 TCP No No 10.47.1.12 +*10.47.4.2/32 / 5254.0019.93e9 *Oct 2 06:51:11.882 8190 TCP No No 10.47.1.12 +*10.47.4.2/32 / 5254.0019.93e9 *Oct 3 00:56:33.642 8190 TCP No No 10.47.1.12 +*10.47.4.2/32 / 5254.0019.93e9 *Oct 3 01:53:45.934 8190 TCP No No 10.47.1.12 +*10.47.4.2/32 / 5254.0019.93e9 *Oct 6 04:36:08.685 8190 TCP No No 10.47.1.12 +*10.47.4.2/32 / 5254.0019.93e9
並置邊界L3 LISP伺服器驗證
要檢查L3 LISP伺服器，請使用命令show lisp instance-id <LISP L3 IID> ipv4 server <IP address>
要檢查L3 LISP伺服器註冊歷史記錄，請使用命令show lisp instance-id <LISP L3 IID> ipv4 server <IP address> registration-history
Border-1#show lisp instance-id 4099 ipv4 server 10.47.4.2
LISP Site Registration Information
Site name: site_uci
Description: map-server configured from Cisco DNA-Center
Allowed configured locators: any
Requested EID-prefix:
EID-prefix: 10.47.4.2/32 instance-id 4099
First registered: 2w5d
Last registered: 02:39:39
Routing table tag: 0
Origin: Dynamic, more specific of 10.47.4.0/24
Merge active: No
Proxy reply: Yes
Skip Publication: No
Force Withdraw: No
TTL: 1d00h
State: complete
Extranet IID: Unspecified
Registration errors:
Authentication failures: 0
Allowed locators mismatch: 0
ETR 10.47.1.12:21038, last registered 02:39:39, proxy-reply, map-notify
TTL 1d00h, no merge, hash-function sha1
state complete, no security-capability
nonce 0x128CB668-0xF7B85F77
xTR-ID 0xAB3179F6-0xC774F22C-0x00F2C82E-0x3A66738D
site-ID unspecified
Domain-ID local
Multihoming-ID unspecified
sourced by reliable transport
Locator Local State Pri/Wgt Scope
10.47.1.12 yes up 10/10 IPv4 none
Border-1#show lisp instance-id 4099 ipv4 server 10.47.4.2/32 registration-history
Map-Server registration history
Roam = Did host move to a new location?
WLC = Did registration come from a Wireless Controller?
Prefix qualifier: + = Register Event, - = Deregister Event, * = AR register event
Timestamp (UTC) Instance Proto Roam WLC Source
EID prefix / Locator
*Oct 6 04:36:01.548 4099 UDP No No 10.47.1.12
+ 10.47.4.2/32
*Oct 6 04:36:08.686 4099 TCP No No 10.47.1.12
+ 10.47.4.2/32
*Oct 9 18:35:48.058 4099 TCP No No 10.47.1.12
+ 10.47.4.2/32
SDA中的ARP解析
假設已使用CIsco Catalyst Center來預配SDA交換矩陣（預設設定）。這表示已啟用第2層擴展，並且交換矩陣內（位於同一VLAN/VN中）的所有流量都會根據MAC位址查詢/LISP乙太網路執行個體進行轉送，而不是IP位址查詢/LISP IP執行個體進行轉送。
從故障排除的角度來看，在兩台主機上配置靜態ARP條目以快速檢查問題是否與交換矩陣中的通用連線有關（在這種情況下，ping在主機之間不起作用）或僅與ARP解析有關，可能會非常有用。
SDA交換矩陣中的ARP過程利用LISP來解析主機的識別和位置，與傳統路由/交換環境中的ARP行為不同。
第1步：交換矩陣終端傳送ARP請求以確定其他交換矩陣終端的MAC/IP繫結
可在輸入介面上設定封包擷取，以確認是否已從主機收到ARP封包：
Edge-1#monitor capture 1 interface g1/0/3 in match any
Edge-1#mon cap 1 start
Started capture point : 1
Edge-1#mon cap 1 stop
Capture statistics collected at software:
Capture duration - 22 seconds
Packets received - 13
Packets dropped - 0
Packets oversized - 0
Number of Bytes dropped at asic not collected
Capture buffer will exists till exported or cleared
Stopped capture point : 1
Edge-1#show monitor capture 1 buffer brief
Starting the packet display ........ Press Ctrl + Shift + 6 to exit
1 0.000000 52:54:00:19:93:e9 -> ff:ff:ff:ff:ff:ff ARP 60 Who has 10.47.4.3? Tell 10.47.4.2
2 1.028893 52:54:00:19:93:e9 -> ff:ff:ff:ff:ff:ff ARP 60 Who has 10.47.4.3? Tell 10.47.4.2
3 2.058244 52:54:00:19:93:e9 -> ff:ff:ff:ff:ff:ff ARP 60 Who has 10.47.4.3? Tell 10.47.4.2
Edge-1#show monitor capture 1 buffer display-filter arp detailed
Starting the packet display ........ Press Ctrl + Shift + 6 to exit
Frame 1: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface /tmp/epc_ws/wif_to_ts_pipe, id 0
Interface id: 0 (/tmp/epc_ws/wif_to_ts_pipe)
Interface name: /tmp/epc_ws/wif_to_ts_pipe
Encapsulation type: Ethernet (1)
Arrival Time: Oct 10, 2023 14:52:03.659290000 UTC
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1696949523.659290000 seconds
[Time delta from previous captured frame: 0.000000000 seconds]
[Time delta from previous displayed frame: 0.000000000 seconds]
[Time since reference or first frame: 0.000000000 seconds]
Frame Number: 1
Frame Length: 60 bytes (480 bits)
Capture Length: 60 bytes (480 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: eth:ethertype:arp]
Ethernet II, Src: 52:54:00:19:93:e9 (52:54:00:19:93:e9), Dst: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff) <-- SMAC/DMAC respectively
Destination: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff)
Address: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
.... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
Source: 52:54:00:19:93:e9 (52:54:00:19:93:e9)
Address: 52:54:00:19:93:e9 (52:54:00:19:93:e9)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Type: ARP (0x0806)
Padding: 000000000000000000000000000000000000
Address Resolution Protocol (request)
Hardware type: Ethernet (1)
Protocol type: IPv4 (0x0800)
Hardware size: 6
Protocol size: 4
Opcode: request (1)
Sender MAC address: 52:54:00:19:93:e9 (52:54:00:19:93:e9)
Sender IP address: 10.47.4.2
Target MAC address: 00:00:00:00:00:00 (00:00:00:00:00:00)
Target IP address: 10.47.4.3
步驟 2.邊緣節點使用ARP資料包並生成LISP請求以確定HOST-02的MAC地址。
Edge-1向LISP控制平面（並置邊界）傳送解析MAC地址10.47.4.3的LISP對映請求：
Edge-1#debug lisp control-plane all
Edge-1#debug l2lisp all
LISP[REMT ]-0: Map Request: Delay is over for IID 8190 EID 10.47.4.3/32, requester 'AR'. LISP[REMT ]-0 IID 8190: Schedule processing of Map-Requests from 'remote EID prefix' in IPv4. LISP[REMT ]-0: Map Request: Sending request for IID 8190 EID 10.47.4.3/32, requester 'AR'.
步驟 3.控制節點接收用於IP/MAC對映的LISP請求，並將響應傳送回SDA邊緣節點
從Fabric Edge接收LISP對映請求，並使用與10.47.4.3關聯的MAC地址的LISP對映回覆進行響應
Border-1#debug lisp control-plane all
Border-1#debug l2lisp all
LISP[TRNSP]-0: Processing received Map-Request(1) message on GigabitEthernet1/0/3 from 10.47.4.3:4342 to 10.47.4.3:4342. LISP[MR ]-0: Received Map-Request with 1 records, first EID IID 8190 10.47.4.3/32, source EID UNSPEC, nonce 0x73F75F36-0x061CAF58. LISP[MR ]-0 IID 8190 Eth-ARP: MS EID 10.47.4.3/32: Sending proxy reply to 10.47.1.12.
LISP控制平面根據儲存在本地資料庫中的地址解析條目使用代理回覆進行響應
Border-1#show lisp instance-id 8190 ethernet server address-resolution 10.47.4.3 Address-resolution data for router lisp 0 instance-id 8190 Site name: site_uci Host Address: 10.47.4.3/32 Hardware Address: 5254.001e.ad00 First registered: 21:11:17 Last registered: 21:11:17 Registration errors: Authentication failures: 0 ETR 10.47.1.13:16056 Last registered: 21:11:17 TTL: 1d00h xTR-ID: 0x8CEE6478-0x9358E248-0xE935FF07-0x8C3C5450 Site-ID: unspecified Registered addr: 5254.001e.ad00 L3 Instance ID: 4099
步驟 4.邊緣節點收到MAC地址為10.47.4.3的LISP應答
LISP代理回覆由交換矩陣邊緣節點接收：
LISP[REMT ]-0: Processing Map-Reply mapping record for IID 8190 MAC 5254.001e.ad00/48 LCAF 2, ttl 1440, action none, not authoritative, 1 locator. LISP[REMT ]-0: Processing mapping information for EID prefix IID 8190 5254.001e.ad00/48.
步驟 5.邊緣節點傳送LISP對映請求資料包來確定MAC地址的RLOC位置
成功完成前三個步驟後，邊緣節點知道最初為其生成ARP的MAC地址10.47.4.3。啟用第2層擴展後，邊緣節點不會用此資訊回復到10.47.4.2，而是使用它來確定出口節點邊緣的RLOC位置，以便像在傳統第2層網路中那樣將ARP轉發到10.47.4.3。
因此，邊緣節點在乙太網例項中又生成一個LISP對映請求資料包，這次請求10.47.4.2的MAC地址的RLOC資訊：
Edge-1#debug lisp control-plane all
Edge-1#debug l2lisp all
*Oct 10 17:01:41.430: LISP[REMT ]-0 IID 8190: Schedule processing of Map-Requests from 'remote EID prefix' in IPv4. *Oct 10 17:01:41.430: LISP[REMT ]-0: Map Request: Sending request for IID 8190 EID 5254.001e.ad00/48, requester 'remote EID prefix'
第6步：控制節點接收LISP對映請求資料包，以確定MAC地址的RLOC位置
控制節點接收LISP資料包，並根據其本地資料庫狀態回覆該資料包
Border-1#debug lisp control-plane all Border-1#debug l2lisp all *Oct 10 16:04:42.055: LISP[MR ]-0 IID 8190 Eth-ARP: MS EID 10.47.4.3/32: Sending proxy reply to 10.47.1.12. *Oct 10 16:04:42.407: LISP[MR ]-0: Received Map-Request with 1 records, first EID IID 8190 5254.001e.ad00/48, source EID 0000.0c9f.f341, nonce 0x75E13E8C-0x40DE7912. *Oct 10 16:04:42.408: LISP[MR ]-0 IID 8190 MAC: MS EID 5254.001e.ad00/48: Sending proxy reply to 10.47.1.12.
第7步：邊緣節點接收LISP對映回覆
邊緣節點接收由控制節點生成的LISP對映應答：
Edge-1#debug lisp control-plane all
Edge-1#debug l2lisp all
*Oct 10 17:44:00.181: LISP[TRNSP]-0: Processing received Map-Reply(2) message on GigabitEthernet1/0/2 from 10.47.1.13:4342 to 10.47.1.12:4342. *Oct 10 17:44:00.181: LISP[REMT ]-0: Received Map-Reply with nonce 0xF954EC80-0x039D7E4A, 1 records. *Oct 10 17:44:00.181: LISP[REMT ]-0: Map-Reply nonce matches pending request for IID 8190 EID 5254.001e.ad00/48, requester 'remote EID RLOC'. *Oct 10 17:44:00.181: LISP[REMT ]-0: Processing Map-Reply mapping record for IID 8190 MAC 5254.001e.ad00/48 LCAF 2, ttl 1440, action none, authoritative, 1 locator. *Oct 10 17:44:00.181: LISP[REMT ]-0: Map Request: Received reply with rtt 560ms. *Oct 10 17:44:00.181: LISP[REMT ]-0: Processing mapping information for EID prefix IID 8190 5254.001e.ad00/48.
這最終在LISP乙太網例項對映快取中建立一個條目，並允許將ARP資料包轉發到連線10.47.4.3的Edge-2
Edge-1#show lisp instance-id 8190 ethernet map-cache 5254.001e.ad00
LISP MAC Mapping Cache for LISP 0 EID-table Vlan 1026 (IID 8190), 1 entries
5254.001e.ad00/48, uptime: 00:04:11, expires: 23:55:48, via map-reply, complete
Sources: map-reply
State: complete, last modified: 00:04:11, map-source: 10.47.1.13
Active, Packets out: 8(0 bytes), counters are not accurate (~ 00:00:04 ago)
Encapsulating dynamic-EID traffic
Locator Uptime State Pri/Wgt Encap-IID
10.47.1.13 00:04:11 up 10/10 -
Last up-down state change: 00:04:11, state change count: 1
Last route reachability change: 00:04:11, state change count: 1
Last priority / weight change: never/never
RLOC-probing loc-status algorithm:
Last RLOC-probe sent: 00:04:11 (rtt 560ms)
步驟 8.ARP封裝在VXLAN中，並傳送到HOST-02
所有LISP相關步驟都需要確定10.47.4.3的位置，以便邊緣節點可以將原始ARP（廣播）資料包作為單播傳送到正確的邊緣節點。 邊緣節點CPU快取原始ARP請求（不丟棄），直到完成所有步驟，即使從10.47.4.2傳送單個ARP資料包，也能正確解析ARP。
ARP封包封裝在VXLAN中，如範例所示：
Edge-2#show monitor capture 1 buffer display-filter arp brief Starting the packet display ........ Press Ctrl + Shift + 6 to exit
67 15.149181 52:54:00:19:93:e9 -> 52:54:00:1e:ad:00 ARP 110 Who has 10.47.4.3? Tell 10.47.4.2 68 15.155511 52:54:00:19:93:e9 -> 52:54:00:1e:ad:00 ARP 110 Who has 10.47.4.3? Tell 10.47.4.2
ARP請求已封裝在VXLAN中，並從廣播ARP請求轉換為單播ARP請求。
Frame 68: 110 bytes on wire (880 bits), 110 bytes captured (880 bits) on interface /tmp/epc_ws/wif_to_ts_pipe, id 0
Interface id: 0 (/tmp/epc_ws/wif_to_ts_pipe)
Interface name: /tmp/epc_ws/wif_to_ts_pipe
Encapsulation type: Ethernet (1)
Arrival Time: Oct 10, 2023 17:56:43.256570000 UTC
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1696960603.256570000 seconds
[Time delta from previous captured frame: 0.006330000 seconds]
[Time delta from previous displayed frame: 0.006330000 seconds]
[Time since reference or first frame: 15.155511000 seconds]
Frame Number: 68
Frame Length: 110 bytes (880 bits)
Capture Length: 110 bytes (880 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: eth:ethertype:ip:udp:vxlan:eth:ethertype:arp]
Ethernet II, Src: 52:54:00:0a:42:11 (52:54:00:0a:42:11), Dst: 52:54:00:17:fe:65 (52:54:00:17:fe:65)
Destination: 52:54:00:17:fe:65 (52:54:00:17:fe:65)
Address: 52:54:00:17:fe:65 (52:54:00:17:fe:65)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Source: 52:54:00:0a:42:11 (52:54:00:0a:42:11)
Address: 52:54:00:0a:42:11 (52:54:00:0a:42:11)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Type: IPv4 (0x0800)
Internet Protocol Version 4, Src: 10.47.1.12, Dst: 10.47.1.13 <-- 10.47.1.12 is Edge-1 RLOC, 10.47.1.13 is Edge-2 RLOC
0100 .... = Version: 4
.... 0101 = Header Length: 20 bytes (5)
Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
0000 00.. = Differentiated Services Codepoint: Default (0)
.... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
Total Length: 96
Identification: 0x1781 (6017)
Flags: 0x4000, Don't fragment
0... .... .... .... = Reserved bit: Not set
.1.. .... .... .... = Don't fragment: Set
..0. .... .... .... = More fragments: Not set
Fragment offset: 0
Time to live: 253
Protocol: UDP (17)
Header checksum: 0x4f95 [validation disabled]
[Header checksum status: Unverified]
Source: 10.47.1.12
Destination: 10.47.1.13
User Datagram Protocol, Src Port: 65354, Dst Port: 4789
Source Port: 65354
Destination Port: 4789
Length: 76
[Checksum: [missing]]
[Checksum Status: Not present]
[Stream index: 0]
[Timestamps]
[Time since first frame: 15.155511000 seconds]
[Time since previous frame: 0.006330000 seconds]
Virtual eXtensible Local Area Network
Flags: 0x8800, GBP Extension, VXLAN Network ID (VNI)
1... .... .... .... = GBP Extension: Defined
.... .... .0.. .... = Don't Learn: False
.... 1... .... .... = VXLAN Network ID (VNI): True
.... .... .... 0... = Policy Applied: False
.000 .000 0.00 .000 = Reserved(R): 0x0000
Group Policy ID: 0
VXLAN Network Identifier (VNI): 8190 <-- L2 LISP IID
Reserved: 0
Ethernet II, Src: 52:54:00:19:93:e9 (52:54:00:19:93:e9), Dst: 52:54:00:1e:ad:00 (52:54:00:1e:ad:00) <--Unicast ARP Request
Destination: 52:54:00:1e:ad:00 (52:54:00:1e:ad:00)
Address: 52:54:00:1e:ad:00 (52:54:00:1e:ad:00)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Source: 52:54:00:19:93:e9 (52:54:00:19:93:e9)
Address: 52:54:00:19:93:e9 (52:54:00:19:93:e9)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Type: ARP (0x0806)
Trailer: 000000000000000000000000000000000000
Address Resolution Protocol (request)
Hardware type: Ethernet (1)
Protocol type: IPv4 (0x0800)
Hardware size: 6
Protocol size: 4
Opcode: request (1)
Sender MAC address: 52:54:00:19:93:e9 (52:54:00:19:93:e9)
Sender IP address: 10.47.4.2
Target MAC address: 00:00:00:00:00:00 (00:00:00:00:00:00)
Target IP address: 10.47.4.3
步驟 9.ARP應答由10.47.4.3生成，並傳送到10.47.4.2
Edge-2#show monitor capture 1 buffer display-filter arp brief
Starting the packet display ........ Press Ctrl + Shift + 6 to exit
1 0.000000 52:54:00:1e:ad:00 -> 52:54:00:19:93:e9 ARP 60 10.47.4.3 is at 52:54:00:1e:ad:00
2 0.069429 52:54:00:1e:ad:00 -> 52:54:00:19:93:e9 ARP 60 10.47.4.3 is at 52:54:00:1e:ad:00
11 5.960508 52:54:00:1e:ad:00 -> 52:54:00:19:93:e9 ARP 60 Who has 10.47.4.2? Tell 10.47.4.3
此時，資料包的目的地不是廣播地址（作為原始ARP請求），而是10.47.4.2的MAC地址，當它到達入口邊緣節點(Edge-2)時，會觸發正常的LISP操作。最初，邊緣節點的LISP乙太網例項中缺少MAC地址10.47.4.2，資料包被傳送到CPU以生成LISP對映請求，從而確定HOST-01的RLOC。此行為與本文檔其他部分所述完全相同，並且允許為Edge-2上的10.47.4.2建立LISP對映快取條目：
Edge-2#show lisp instance-id 8190 ethernet map-cache 5254.0019.93e9
LISP MAC Mapping Cache for LISP 0 EID-table Vlan 1026 (IID 8190), 1 entries
5254.0019.93e9/48, uptime: 03:18:28, expires: 20:41:32, via map-reply, complete
Sources: map-reply
State: complete, last modified: 03:18:28, map-source: 10.47.1.12
Active, Packets out: 386(0 bytes), counters are not accurate (~ 00:00:12 ago)
Encapsulating dynamic-EID traffic
Locator Uptime State Pri/Wgt Encap-IID
10.47.1.12 03:18:28 up 10/10 -
Last up-down state change: 03:18:28, state change count: 1
Last route reachability change: 03:18:28, state change count: 1
Last priority / weight change: never/never
RLOC-probing loc-status algorithm:
Last RLOC-probe sent: 03:18:28 (rtt 710ms)
該條目允許在VXLAN封裝中將ARP應答成功傳送到Edge-1，並進一步轉發到10.47.4.2競爭整個ARP解析過程。
SDA交換矩陣中的基本主機可達性（相同VLAN/相同VN）
假設ARP解析成功完成，並且兩個主機10.47.4.2和10.47.4.3彼此具有適當的ARP條目。
從故障排除的角度來看，在兩台主機上配置靜態ARP條目非常有用，可以快速檢查問題是否與交換矩陣中的通用連線有關（在這種情況下，主機之間的ping不起作用），還是僅與ARP過程有關。
10.47.4.2向10.47.4.3產生ICMP請求：
Edge-1#show monitor capture 1 buffer brief
Starting the packet display ........ Press Ctrl + Shift + 6 to exit
1 0.000000 10.47.4.2 -> 10.47.4.3 ICMP 98 Echo (ping) request id=0x0040, seq=3/768, ttl=64
Edge-1#show monitor capture 1 buffer detail
Starting the packet display ........ Press Ctrl + Shift + 6 to exit
Frame 1: 98 bytes on wire (784 bits), 98 bytes captured (784 bits) on interface /tmp/epc_ws/wif_to_ts_pipe, id 0
Interface id: 0 (/tmp/epc_ws/wif_to_ts_pipe)
Interface name: /tmp/epc_ws/wif_to_ts_pipe
Encapsulation type: Ethernet (1)
Arrival Time: Oct 10, 2023 18:21:21.484694000 UTC
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1696962081.484694000 seconds
[Time delta from previous captured frame: 0.000000000 seconds]
[Time delta from previous displayed frame: 0.000000000 seconds]
[Time since reference or first frame: 0.000000000 seconds]
Frame Number: 1
Frame Length: 98 bytes (784 bits)
Capture Length: 98 bytes (784 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: eth:ethertype:ip:icmp:data]
Ethernet II, Src: 52:54:00:19:93:e9 (52:54:00:19:93:e9), Dst: 52:54:00:1e:ad:00 (52:54:00:1e:ad:00) <-- Endpoint MAC, Anycast GW MAC respectively
Destination: 52:54:00:1e:ad:00 (52:54:00:1e:ad:00)
Address: 52:54:00:1e:ad:00 (52:54:00:1e:ad:00)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Source: 52:54:00:19:93:e9 (52:54:00:19:93:e9)
Address: 52:54:00:19:93:e9 (52:54:00:19:93:e9)
.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
Type: IPv4 (0x0800)
Internet Protocol Version 4, Src: 10.47.4.2, Dst: 10.47.4.3
0100 .... = Version: 4
.... 0101 = Header Length: 20 bytes (5)
Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
0000 00.. = Differentiated Services Codepoint: Default (0)
.... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
Total Length: 84
Identification: 0x7321 (29473)
Flags: 0x4000, Don't fragment
0... .... .... .... = Reserved bit: Not set
.1.. .... .... .... = Don't fragment: Set
..0. .... .... .... = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: ICMP (1)
Header checksum: 0xab25 [validation disabled]
[Header checksum status: Unverified]
Source: 10.47.4.2
Destination: 10.47.4.3
Internet Control Message Protocol
Type: 8 (Echo (ping) request)
Code: 0
Checksum: 0x02ea [correct]
[Checksum Status: Good]
Identifier (BE): 64 (0x0040)
Identifier (LE): 16384 (0x4000)
Sequence number (BE): 3 (0x0003)
Sequence number (LE): 768 (0x0300)
Data (56 bytes)
0000 68 95 8c 3d 00 00 00 00 00 00 00 00 00 00 00 00 h..=............
0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0030 00 00 00 00 00 00 00 00 ........
Data: 68958c3d0000000000000000000000000000000000000000b^@&
[Length: 56]
向10.47.4.3傳送的ICMP資料包將傳送到定位器欄位10.47.1.13(Edge-2)中指定的邊緣節點，可以通過嵌入式資料包捕獲進行捕獲。
在啟用L2擴展的VLAN中收到資料包後，將在LISP乙太網例項中完成查詢：
Edge-1#show lisp instance-id 8190 ethernet map-cache 5254.001e.ad00
LISP MAC Mapping Cache for LISP 0 EID-table Vlan 1026 (IID 8190), 1 entries
5254.001e.ad00/48, uptime: 00:22:29, expires: 23:37:32, via map-reply, complete
Sources: map-reply
State: complete, last modified: 00:22:29, map-source: 10.47.1.13
Active, Packets out: 42(0 bytes), counters are not accurate (~ 00:00:58 ago)
Encapsulating dynamic-EID traffic
Locator Uptime State Pri/Wgt Encap-IID
10.47.1.13 00:22:29 up 10/10 -
Last up-down state change: 00:22:29, state change count: 1
Last route reachability change: 00:22:29, state change count: 1
Last priority / weight change: never/never
RLOC-probing loc-status algorithm:
Last RLOC-probe sent: 00:22:28 (rtt 1609ms)
檢查遠端終端的MAC地址，它指向L2LI0，這是預期的
Edge-1#show mac add add 5254.001e.ad00
Mac Address Table
-------------------------------------------
Vlan Mac Address Type Ports
---- ----------- -------- -----
1026 5254.001e.ad00 CP_LEARN L2LI0
Total Mac Addresses installed by LISP: REMOTE: 1
檢查FED中的MAC地址，可以收集其他資訊
Edge-1#show platform software fed sw active matm macTable vlan 1026 mac 5254.001e.ad00 VLAN MAC Type Seq# EC_Bi Flags machandle siHandle riHandle diHandle *a_time *e_time ports Con ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 1026 5254.001e.ad00 0x1000001 0 0 64 0x7f65ecfdd3a8 0x7f65ecfdd1f8 0x7f65ecfdd048 0x0 0 2 RLOC 10.47.1.13 adj_id 97 No ======platform hardware details ====== Asic: 0 htm-handle = 0x7f65ecc4d188 MVID = 7 gpn = 1 SI = 0xc7 RI = 0x12 DI = 0x5012 Asic: 1 SI = 0xc7 RI = 0x12 DI = 0x5013
MAC地址macHandle解碼
從前面的命令獲取macHandle(0x7f65ecfdd3a8)，然後在show platform hardware fed switch active fwd-asic abstraction print-resource-handle <macHandle> 1命令中使用
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ecfdd3a8 1 Handle:0x7f65ecfdd3a8 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_L2_WIRELESS Lkp-ftr-id:LKP_FEAT_L2_SRC_MAC_VLAN ref_count:1 priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f65ecc4d188 Features sharing this resource:Cookie length: 12 1e 00 54 52 00 ad 07 80 07 00 00 00 Detailed Resource Information (ASIC_INSTANCE# 0) ---------------------------------------- Number of HTM Entries: 1 Entry 0: (handle 0x7f65ecc4d188) Absolute Index: 4706 Time Stamp: 14 KEY - vlan:7 mac:0x5254001ead00 l3_if:0 gpn:3401 epoch:0 static:0 flood_en:0 vlan_lead_wless_flood_en: 0 client_home_asic: 0 learning_peerid 0, learning_peerid_valid 0 lvx:1 MASK - vlan:0 mac:0x0 l3_if:0 gpn:0 epoch:0 static:0 flood_en:0 vlan_lead_wless_flood_en: 0 client_home_asic: 0 learning_peerid 0, learning_peerid_valid 0 lvx:0 SRC_AD - need_to_learn:0 lrn_v:0 catchall:0 static_mac:0 chain_ptr_v:0 chain_ptr: 0 static_entry_v:0 auth_state:0 auth_mode:0 auth_behavior_tag:0 traf_m:0 is_src_ce:0 DST_AD - si:0xc7 bridge:0 replicate:0 blk_fwd_o:0 v4_rmac:0 v6_rmac:0 catchall:0 ign_src_lrn:0 port_mask_o:0 afd_cli_f:0 afd_lbl:0 prio:3 dest_mod_idx:0 destined_to_us:0 pv_trunk:0 smr:1 ==============================================================
MAC地址siHandle解碼
從上一個命令獲取siHandle(0x7f65ecfdd1f8)，並在命令show platform hardware fed switch active fwd-asic abstraction print-resource-handle <siHandle> 1中使用
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ecfdd1f8 1 Handle:0x7f65ecfdd1f8 Res-Type:ASIC_RSC_SI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_L2_WIRELESS Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1 priv_ri/priv_si Handle: 0x7f65ecfdd048Hardware Indices/Handles: index0:0xc7 mtu_index/l3u_ri_index0:0x0 index1:0xc7 mtu_index/l3u_ri_index1:0x0 Features sharing this resource:58 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 02 04 00 00 00 00 00 00 00 00 00 00 07 00 61 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 00 00 00 00 00 Detailed Resource Information (ASIC_INSTANCE# 0) ---------------------------------------- Station Index (SI) [0xc7] <-- Contains the Rewrite Index (RI) and Outgoing Interface Information (DI) RI = 0x12 <-- Rewrite Index = Contains information for forwarding DI = 0x5012 <-- Destination Index = Outgoing Interface stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: LD Detailed Resource Information (ASIC_INSTANCE# 1) ---------------------------------------- Station Index (SI) [0xc7] <-- Contains the Rewrite Index (RI) and Outgoing Interface Information (DI)
RI = 0x12 <-- Rewrite Index = Contains information for forwarding
DI = 0x5013 <-- Destination Index = Outgoing Interface stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: LD ==============================================================
重寫索引解碼
採用RI(0x12)並在命令show platform hardware fed switch active fwd-asic resource asic all rewrite-index range <RI> <RI>中使用
Edge-1#show platform hardware fed switch active fwd-asic resource asic all rewrite-index range 0x12 0x12 ASIC#:0 RI:18 Rewrite_type:AL_RRM_REWRITE_L2_PAYLOAD_L2LISP_ENCAP(115) Mapped_rii:LVX_L2_ENCAP_L2_PAYLOAD_ROUTED(133) Src IP: 10.47.1.12 <-- Local RLOC Dst IP: 10.47.1.13 <-- Remote RLOC iVxlan dstMac: 0x5254:0x01c:0x7de0 iVxlan srcMac: 0x00:0x00:0x00 IPv4 TTL: 0 iid present: 1 lisp iid: 0 lisp flags: 0 dst Port: 4789 update only l3if: 0 is Sgt: 1 is TTL Prop: 0 L3if LE: 0 (0) Port LE: 0 (0) Vlan LE: 7 (0) ASIC#:1 RI:18 Rewrite_type:AL_RRM_REWRITE_L2_PAYLOAD_L2LISP_ENCAP(115) Mapped_rii:LVX_L2_ENCAP_L2_PAYLOAD_ROUTED(133) Src IP: 10.47.1.12 <-- Local RLOC Dst IP: 10.47.1.13 <-- Remote RLOC iVxlan dstMac: 0x5254:0x01c:0x7de0 iVxlan srcMac: 0x00:0x00:0x00 IPv4 TTL: 0 iid present: 1 lisp iid: 0 lisp flags: 0 dst Port: 4789 update only l3if: 0 is Sgt: 1 is TTL Prop: 0 L3if LE: 0 (0) Port LE: 0 (0) Vlan LE: 7 (0)
Destination-Index Decode
採用DI(0x5012)並在命令show platform hardware fed switch active fwd-asic resource asic all destination-index range <DI> <DI>中使用
Edge-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x5012 0x5012 ASIC#0: Destination index = 0x5012 DI_RCP_PORT1 <-- Recirculation port for VXLAN imposition pmap = 0x00000000 0x00000000 cmi = 0x0 rcp_pmap = 0x1 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: Destination index = 0x5012 DI_RCP_PORT1 <-- Recirculation port for VXLAN imposition 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
siHandle解碼
採用siHandle(0x7f65ecfdd048)並在命令show platform hardware fed switch active fwd-asic abstraction print-resource-handle <siHandle> 1中使用
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ecfdd048 1 Handle:0x7f65ecfdd048 Res-Type:ASIC_RSC_RI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_L2_WIRELESS Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1 priv_ri/priv_si Handle: 0x7f65ecfdcd78Hardware Indices/Handles: index0:0x12 mtu_index/l3u_ri_index0:0x0 index1:0x12 mtu_index/l3u_ri_index1:0x0 Features sharing this resource:58 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 02 04 00 00 00 00 00 00 00 00 00 00 07 00 61 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 00 00 00 00 00 Detailed Resource Information (ASIC_INSTANCE# 0) ---------------------------------------- ASIC#:0 RI:18 Rewrite_type:AL_RRM_REWRITE_L2_PAYLOAD_L2LISP_ENCAP(115) Mapped_rii:LVX_L2_ENCAP_L2_PAYLOAD_ROUTED(133) Src IP: 10.47.1.12 <-- Local RLOC Dst IP: 10.47.1.13 <-- Remote RLOC iVxlan dstMac: 0x610:0x00:0x00 iVxlan srcMac: 0x00:0x00:0x00 IPv4 TTL: 0 iid present: 1 lisp iid: 0 lisp flags: 0 dst Port: 4789 update only l3if: 0 is Sgt: 1 is TTL Prop: 0 L3if LE: 0 (0) Port LE: 279 (0) Vlan LE: 7 (0) Detailed Resource Information (ASIC_INSTANCE# 1) ---------------------------------------- ASIC#:1 RI:18 Rewrite_type:AL_RRM_REWRITE_L2_PAYLOAD_L2LISP_ENCAP(115) Mapped_rii:LVX_L2_ENCAP_L2_PAYLOAD_ROUTED(133)
Src IP: 10.47.1.12 <-- Local RLOC
Dst IP: 10.47.1.13 <-- Remote RLOC iVxlan dstMac: 0x610:0x00:0x00 iVxlan srcMac: 0x00:0x00:0x00 IPv4 TTL: 0 iid present: 1 lisp iid: 0 lisp flags: 0 dst Port: 4789 update only l3if: 0 is Sgt: 1 is TTL Prop: 0 L3if LE: 0 (0) Port LE: 279 (0) Vlan LE: 7 (0) ==============================================================
底層路由驗證
流量使用10.47.1.12封裝在IID 8190的VXLAN中，能夠對Gig1/0/1和G1/0/2進行負載均衡
Edge-1#show ip route 10.47.1.13
Routing entry for 10.47.1.13/32
Known via "isis", distance 115, metric 30, type level-2
Redistributing via isis
Last update from 10.47.1.4 on GigabitEthernet1/0/2, 2d22h ago
Routing Descriptor Blocks:
10.47.1.4, from 10.47.1.13, 2d22h ago, via GigabitEthernet1/0/2
Route metric is 30, traffic share count is 1
* 10.47.1.0, from 10.47.1.13, 2d22h ago, via GigabitEthernet1/0/1
Route metric is 30, traffic share count is 1
Edge-1#show ip cef 10.47.1.13
10.47.1.13/32
nexthop 10.47.1.0 GigabitEthernet1/0/1
nexthop 10.47.1.4 GigabitEthernet1/0/2
要獲取si_hdl、ri_hdl資訊，請使用命令show platform software fed switch active ip adj
Edge-1#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 ---- ------- ------- ------ ------ -------- ------ ------------- 225.0.0.0 GigabitEthernet1/0/1 0100.5e00.0000 0x7f65ec958128 0x7f65ec957e18 0x0 0xf80001a1 2023/09/19 17:57:41.399 10.47.1.10 LISP0.4100 4500.0000.0000 0x7f65ec895ed8 0x7f65ec895a68 0x60 0x5c 2023/09/19 17:58:16.545 225.0.0.0 GigabitEthernet1/0/2 0100.5e00.0000 0x7f65ec958f68 0x7f65ec95b2b8 0x0 0xf80001b1 2023/09/19 17:57:41.938 10.47.1.4 GigabitEthernet1/0/2 5254.001c.7de0 0x7f65ec8a5458 0x7f65ec8a4eb8 0x0 0x4c 2023/09/19 17:58:02.150 225.0.0.0 Null0 f800.0011.0000 0x7f65ec3740c8 0x0 0x0 0xf8000011 2023/09/19 17:57:29.404 10.47.1.0 GigabitEthernet1/0/1 5254.000a.42f3 0x7f65ec8b8468 0x7f65ec8b8158 0x0 0x55 2023/09/19 17:58:08.864
Underlay Next-Hop si_hdl解碼
檢查si_hdl(0x7f65ec8a5458)，在show platform hardware fed switch active fwd-asic abstraction print-resource-handle <si_hdl> 1命令中使用
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ec8a5458 1 Handle:0x7f65ec8a5458 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: 0x7f65ec8a4eb8Hardware Indices/Handles: index0:0xbc mtu_index/l3u_ri_index0:0x0 index1:0xbc mtu_index/l3u_ri_index1:0x0 Features sharing this resource:66 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 26 00 00 00 00 00 00 00 00 00 00 00 08 00 52 54 00 1c 7d e0 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_INSTANCE# 0) ---------------------------------------- Station Index (SI) [0xbc] -----> Contains RI and DI information RI = 0x1a -----> Rewrite Index = MAC address rewrite information for L3 forwarding to the next-hop adjacency DI = 0x526d -----> Destination Index = Outgoing Interface stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: LD -----> Local Data, indicating that this ASIC is directly connected to the adjacency interface Detailed Resource Information (ASIC_INSTANCE# 1) ---------------------------------------- Station Index (SI) [0xbc] -----> Contains RI and DI information RI = 0x1a -----> Rewrite Index = MAC address rewrite information for L3 forwarding to the next-hop adjacency DI = 0x526d -----> Destination Index = Outgoing Interface stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: CD -----> Core Data, indicating that this instance of the ASIC is on the same ASIC, but different core. ==============================================================
底層下一躍點重寫索引解碼
要解碼RI(0x1a)，請使用show platform hardware fed switch active fwd-asic resource asic all rewrite-index range <RI> <RI>
Edge-1#show platform hardware fed switch active fwd-asic resource asic all rewrite-index range 0x1a 0x1a ASIC#:0 RI:26 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9) -----> Decimal 26 is hex 0x1a MAC Addr: MAC Addr: 52:54:00:1c:7d:e0, -----> MAC address 5254.001c.7de0 for the next-hop adjacency L3IF LE Index 38 ASIC#:1 RI:26 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9) MAC Addr: MAC Addr: 52:54:00:1c:7d:e0, -----> MAC address 5254.001c.7de0 for the next-hop adjacency L3IF LE Index 38
底層下一躍點目的地索引解碼
解碼show platform hardware fed switch active fwd-asic resource asic all destination-index range <DI> <DI>中使用的DI(0x526d)
Edge-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x526d 0x526d ASIC#0: Destination index = 0x526d pmap = 0x00000000 0x00000002 <-- Convert decimal 2 to binary, which is 0010. Count this binary right to left, zero-based, so Port 1. pmap_intf : [GigabitEthernet1/0/2] 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: Destination index = 0x526d 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
Edge-1#show platform software fed switch active ifm mappings Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active GigabitEthernet1/0/1 0x1a 0 0 0 0 0 1 0 1 1 NIF Y GigabitEthernet1/0/2 0x1b 0 0 0 1 0 2 1 2 2 NIF Y <-- Port 1 lines up to G1/0/2 GigabitEthernet1/0/3 0xb 0 0 0 2 0 3 2 3 3 NIF Y GigabitEthernet1/0/4 0xc 0 0 0 3 0 4 3 4 4 NIF Y GigabitEthernet1/0/5 0xd 0 0 0 4 0 5 4 5 5 NIF Y GigabitEthernet1/0/6 0xe 0 0 0 5 0 6 5 6 6 NIF Y GigabitEthernet1/0/7 0xf 0 0 0 6 0 7 6 7 7 NIF Y GigabitEthernet1/0/8 0x10 0 0 0 7 0 8 7 8 8 NIF Y
底層下一跳ri_hdl解碼
要解碼show platform hardware fed switch active fwd-asic abstraction print-resource-handle(ri_hdl)1中使用的ri_hdl(0x7f65ec8a4eb8)
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ec8a4eb8 1 Handle:0x7f65ec8a4eb8 Res-Type:ASIC_RSC_RI 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: 0x7f65ec903b28Hardware Indices/Handles: index0:0x1a mtu_index/l3u_ri_index0:0x0 index1:0x1a mtu_index/l3u_ri_index1:0x0 Features sharing this resource:66 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 26 00 00 00 00 00 00 00 00 00 00 00 08 00 52 54 00 1c 7d e0 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_INSTANCE# 0) ---------------------------------------- ASIC#:0 RI:26 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9) <-- Decimal 26 is 0x1a in hex MAC Addr: MAC Addr: 52:54:00:1c:7d:e0, <-- MAC address 5254.001c.7de0 for the next-hop adjacency L3IF LE Index 38 Detailed Resource Information (ASIC_INSTANCE# 1) ---------------------------------------- ASIC#:1 RI:26 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9)<-- Decimal 26 is 0x1a in hex MAC Addr: MAC Addr: 52:54:00:1c:7d:e0, MAC Addr: MAC Addr: 52:54:00:1c:7d:e0,<-- MAC address 5254.001c.7de0 for the next-hop adjacency
L3IF LE Index 38 ==============================================================
SDA交換矩陣中的基本主機可達性（不同VLAN/相同VN）
在本節中，將檢查10.47.4.2和10.47.10.2之間的通訊。由於這些主機屬於不同的VLAN，因此兩台主機都需要配置指向預設網關的預設網關。10.47.4.2是10.47.4.1,10.47.10.2是10.47.10.1。
步驟 1.確認終端和預設網關之間的連線工作正常：
Edge-1#ping vrf red_vn 10.47.4.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.47.4.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 155/164/181 ms
Edge-2#ping vrf red_vn 10.47.10.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.47.10.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 41/46/62 ms
步驟 2.確認Edge-1成功收到來自10.47.4.2的資料包：
可在面向10.47.4.2的輸入介面上捕獲資料包：
Edge-1#monitor capture 1 interface g1/0/3 in match any Edge-1#mon cap 1 start Started capture point : 1 Edge-1#mon cap 1 stop Capture statistics collected at software: Capture duration - 12 seconds Packets received - 9 Packets dropped - 0 Packets oversized - 0 Number of Bytes dropped at asic not collected Capture buffer will exists till exported or cleared Stopped capture point : 1
Edge-1#show monitor capture 1 buffer brief Starting the packet display ........ Press Ctrl + Shift + 6 to exit 1 0.000000 10.47.4.2 -> 10.47.10.2 ICMP 98 Echo (ping) request id=0x0041, seq=0/0, ttl=64 2 0.023447 10.47.4.2 -> 10.47.10.2 ICMP 98 Echo (ping) request id=0x0041, seq=0/0, ttl=64
Edge-1#show monitor capture 1 buffer detailed Starting the packet display ........ Press Ctrl + Shift + 6 to exit Frame 1: 98 bytes on wire (784 bits), 98 bytes captured (784 bits) on interface /tmp/epc_ws/wif_to_ts_pipe, id 0 Interface id: 0 (/tmp/epc_ws/wif_to_ts_pipe) Interface name: /tmp/epc_ws/wif_to_ts_pipe Encapsulation type: Ethernet (1) Arrival Time: Oct 11, 2023 15:27:46.033825000 UTC [Time shift for this packet: 0.000000000 seconds] Epoch Time: 1697038066.033825000 seconds [Time delta from previous captured frame: 0.000000000 seconds] [Time delta from previous displayed frame: 0.000000000 seconds] [Time since reference or first frame: 0.000000000 seconds] Frame Number: 1 Frame Length: 98 bytes (784 bits) Capture Length: 98 bytes (784 bits) [Frame is marked: False] [Frame is ignored: False] [Protocols in frame: eth:ethertype:ip:icmp:data] Ethernet II, Src: 52:54:00:19:93:e9 (52:54:00:19:93:e9), Dst: 00:00:0c:9f:f3:41 (00:00:0c:9f:f3:41) <-- SMAC and DMAC respectively Destination: 00:00:0c:9f:f3:41 (00:00:0c:9f:f3:41) Address: 00:00:0c:9f:f3:41 (00:00:0c:9f:f3:41) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Source: 52:54:00:19:93:e9 (52:54:00:19:93:e9) Address: 52:54:00:19:93:e9 (52:54:00:19:93:e9) .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Type: IPv4 (0x0800) Internet Protocol Version 4, Src: 10.47.4.2, Dst: 10.47.10.2 0100 .... = Version: 4 .... 0101 = Header Length: 20 bytes (5) Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT) 0000 00.. = Differentiated Services Codepoint: Default (0) .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0) Total Length: 84 Identification: 0x395e (14686) Flags: 0x4000, Don't fragment 0... .... .... .... = Reserved bit: Not set .1.. .... .... .... = Don't fragment: Set ..0. .... .... .... = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: ICMP (1) Header checksum: 0xdee9 [validation disabled] [Header checksum status: Unverified] Source: 10.47.4.2 Destination: 10.47.10.2 Internet Control Message Protocol Type: 8 (Echo (ping) request) Code: 0 Checksum: 0x248a [correct] [Checksum Status: Good] Identifier (BE): 65 (0x0041) Identifier (LE): 16640 (0x4100) Sequence number (BE): 0 (0x0000) Sequence number (LE): 0 (0x0000) Data (56 bytes) 0000 2a 46 a8 ee 00 00 00 00 00 00 00 00 00 00 00 00 *F.............. 0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0030 00 00 00 00 00 00 00 00 ........ Data: 2a46a8ee0000000000000000000000000000000000000000b^@& [Length: 56]
第3步 — LISP查詢
入口邊緣節點必須確定將資料包傳送到的HOST-03的位置(RLOC)。在此例中，終端主機HOST-03位於不同的VLAN中（但具有相同的VN/VRF: USERS），LISP IPv4例項用於基於IP地址的查詢（MAC地址屬於邊緣節點本身）。
Edge-1#debug lisp control-plane all
LISP[REMT ]-0: Map Request: Sending request for IID 4099 EID 10.47.10.2/32, requester 'remote EID prefix'. LISP[REMT ]-0: Map-Reply nonce matches pending request for IID 4099 EID 10.47.10.2/32, requester 'remote EID prefix'.
LISP對映請求到達控制節點（LISP對映伺服器）Border-1:
Border-1#debug lisp control-plane all
LISP[TRNSP]-0: Processing received Map-Request(1) message on GigabitEthernet1/0/3 from 10.47.10.2:4342 to 10.47.10.2:4342.
LISP[MR ]-0: Received Map-Request with 1 records, first EID IID 4099 10.47.10.2/32, source EID 10.47.4.2, nonce 0x1CFAB931-0x8207CB93. LISP[MR ]-0 IID 4099 IPv4: MS EID 10.47.10.2/32: Sending proxy reply to 10.47.1.12.
LISP對映回復到達邊緣節點：
LISP[REMT ]-0: Processing Map-Reply mapping record for IID 4099 IPv4 10.47.10.2/32 LCAF 2, ttl 1440, action none, not authoritative, 1 locator. LISP[REMT ]-0: Processing mapping information for EID prefix IID 4099 10.47.10.2/32.
交換矩陣邊緣將查詢RLOC的10.47.10.2並處理對映應答
LISP[REMT ]-0: Map Request: Sending request for IID 4099 EID 10.47.10.2/32, requester 'remote EID RLOC'.
LISP[REMT ]-0: Processing Map-Reply mapping record for IID 4099 IPv4 10.47.10.2/32 LCAF 2, ttl 1440, action none, authoritative, 1 locator. LISP[REMT ]-0: Processing mapping information for EID prefix IID 4099 10.47.10.2/32.
如果條目不存在，則需要從LISP進程的角度收集調試。還有一種稱為LIG（LISP群組）的工具，可用於手動觸發LISP進程（這是測試冗餘控制節點配置以及兩個控制節點之間的資料庫一致性的非常有效的方法）：
Edge-1#lig instance-id 4099 10.47.10.2 to 10.47.1.10 Mapping information for EID 10.47.10.2 from 10.47.1.10 with RTT 334 msecs 10.47.10.2/32, uptime: 00:00:00, expires: 23:59:59, via map-reply, complete Locator Uptime State Pri/Wgt Encap-IID 10.47.1.13 00:00:00 up 10/10 -
Edge-1#lig instance-id 4099 10.47.10.2 to 10.47.1.11 Mapping information for EID 10.47.10.2 from 10.47.1.11 with RTT 327 msecs 10.47.10.2/32, uptime: 00:00:06, expires: 23:59:59, via map-reply, complete Locator Uptime State Pri/Wgt Encap-IID 10.47.1.13 00:00:06 up 10/10 -
路由驗證
CEF使用LISP，而LISP使用其已接收的對映快取條目
Edge-1#show ip cef vrf red_vn 10.47.10.2 10.47.10.2/32 nexthop 10.47.1.13 LISP0.4099
Edge-1#show ip route 10.47.1.13 Routing entry for 10.47.1.13/32 Known via "isis", distance 115, metric 30, type level-2 Redistributing via isis Last update from 10.47.1.4 on GigabitEthernet1/0/2, 3d19h ago Routing Descriptor Blocks: 10.47.1.4, from 10.47.1.13, 3d19h ago, via GigabitEthernet1/0/2 Route metric is 30, traffic share count is 1 * 10.47.1.0, from 10.47.1.13, 3d19h ago, via GigabitEthernet1/0/1 Route metric is 30, traffic share count is 1
Edge-1#show lisp instance-id 4099 ipv4 map-cache 10.47.10.2 LISP IPv4 Mapping Cache for LISP 0 EID-table vrf red_vn (IID 4099), 1 entries 10.47.10.2/32, uptime: 00:08:48, expires: 23:51:17, via map-reply, complete Sources: map-reply State: complete, last modified: 00:08:48, map-source: 10.47.1.11 Active, Packets out: 51(29376 bytes), counters are not accurate (~ 00:00:15 ago) Encapsulating dynamic-EID traffic Locator Uptime State Pri/Wgt Encap-IID 10.47.1.13 00:08:48 up 10/10 - Last up-down state change: 00:08:48, state change count: 1 Last route reachability change: 22:07:12, state change count: 1 Last priority / weight change: never/never RLOC-probing loc-status algorithm: Last RLOC-probe sent: 00:08:48 (rtt 931ms)
LISP下一躍點驗證
由於此資料包是VXLAN封裝的，因此需要對LISP下一跳進行驗證。使用命令show platform software fed switch active ip adj 獲取有關10.47.1.13（LISP下一跳）的其他資訊
Edge-1#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 ---- ------- ------- ------ ------ -------- ------ ------------- 10.47.1.10 LISP0.4100 4500.0000.0000 0x7f65ec895ed8 0x7f65ec895a68 0x60 0x5c 2023/09/19 17:58:16.545 10.47.1.4 GigabitEthernet1/0/2 5254.001c.7de0 0x7f65ec8a5458 0x7f65ec8a4eb8 0x0 0x4c 2023/09/19 17:58:02.150 10.47.1.0 GigabitEthernet1/0/1 5254.000a.42f3 0x7f65ec8b8468 0x7f65ec8b8158 0x0 0x55 2023/09/19 17:58:08.864 10.47.4.2 Vlan1026 5254.0019.93e9 0x7f65ec7c21f8 0x7f65ec7c2498 0x0 0x1a 2023/09/19 23:59:34.081 10.47.1.13 LISP0.4099 4500.0000.0000 0x7f65ed00f668 0x7f65ed00fd58 0x60 0x20 2023/10/11 15:36:06.243
LISP下一跳si_hdl解碼
採用si_hdl(0x7f65ed00f668)並用於show platform hardware fed switch active fwd-asic abstraction print-resource-handle <si_hdl> 1
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ed00f668 1 Handle:0x7f65ed00f668 Res-Type:ASIC_RSC_SI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_LISP Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1 priv_ri/priv_si Handle: 0x7f65ed00fd58Hardware Indices/Handles: index0:0xc8 mtu_index/l3u_ri_index0:0x0 index1:0xc8 mtu_index/l3u_ri_index1:0x0 Features sharing this resource:109 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 38 5f 84 ec 0a 2f 01 0d ff ff ff ff 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 00 00 00 00 00 00 00 00 Detailed Resource Information (ASIC_INSTANCE# 0) ---------------------------------------- Station Index (SI) [0xc8] <-- Contains the RI and DI RI = 0x2c <-- Rewrite Index contains information for L3 Forwarding DI = 0x5012 <-- Destination Index contains information for the destination port stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0xc rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: LD Detailed Resource Information (ASIC_INSTANCE# 1) ----------------------------------------
Station Index (SI) [0xc8] <-- Contains the RI and DI
RI = 0x2c <-- Rewrite Index contains information for L3 Forwarding
DI = 0x5013 <-- Destination Index contains information for the destination port stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0xc rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: LD ==============================================================
LISP下一跳RI解碼
採用RI(0x2c)並用於show platform hardware fed switch active fwd-asic resource asic all rewrite-index range <RI> <RI>
Edge-1#show platform hardware fed switch active fwd-asic resource asic all rewrite-index range 0x2c 0x2c ASIC#:0 RI:44 Rewrite_type:AL_RRM_REWRITE_IPV4_VXLAN_INNER_IPV4_ENCAP(110) Mapped_rii:LVX_L3_ENCAP_L2_PAYLOAD(123) Dst Mac: MAC Addr: ba:25:cd:f4:ad:38, Src IP: 10.47.1.12 <-- Local RLOC Dst IP: 10.47.1.13 <-- RLOC of Edge-2 IPv4 TTL: 0 LISP INSTANCEID: 0 L3IF LE Index: 46 ASIC#:1 RI:44 Rewrite_type:AL_RRM_REWRITE_IPV4_VXLAN_INNER_IPV4_ENCAP(110) Mapped_rii:LVX_L3_ENCAP_L2_PAYLOAD(123) Dst Mac: MAC Addr: ba:25:cd:f4:ad:38,
Src IP: 10.47.1.12 <-- Local RLOC
Dst IP: 10.47.1.13 <-- RLOC of Edge-2 IPv4 TTL: 0 LISP INSTANCEID: 0 L3IF LE Index: 46
LISP下一跳DI解碼
採用DI(0x5012)並在show platform hardware fed switch active fwd-asic resource asic all destination-index range <DI> <DI>中使用
Edge-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x5012 0x5012 ASIC#0:
Destination index = 0x5012 DI_RCP_PORT1 <-- Expected, this means the packet is recirculated for VXLAN imposition
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x1
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:
Destination index = 0x5012 DI_RCP_PORT1 <-- Expected, this means the packet is recirculated for VXLAN imposition
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
LISP下一跳ri_hdl解碼
採用ri_hdl(0x7f65ed00fd58)並在命令show platform hardware fed switch active fwd-asic abstraction print-resource-handle <ri_hdl> 1中使用
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ed00fd58 1 Handle:0x7f65ed00fd58 Res-Type:ASIC_RSC_RI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_LISP Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1 priv_ri/priv_si Handle: 0x7f65ed00b618Hardware Indices/Handles: index0:0x2c mtu_index/l3u_ri_index0:0x0 index1:0x2c mtu_index/l3u_ri_index1:0x0 Features sharing this resource:109 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 2e 00 00 00 0a 2f 01 0d ff ff ff ff 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 00 00 00 00 00 00 00 00 Detailed Resource Information (ASIC_INSTANCE# 0) ---------------------------------------- ASIC#:0 RI:44 Rewrite_type:AL_RRM_REWRITE_IPV4_VXLAN_INNER_IPV4_ENCAP(110) Mapped_rii:LVX_L3_ENCAP_L2_PAYLOAD(123) Dst Mac: MAC Addr: ba:25:cd:f4:ad:38, Src IP: 10.47.1.12 <-- Local RLOC Dst IP: 10.47.1.13 <-- Edge-2 RLOC IPv4 TTL: 0 LISP INSTANCEID: 0 L3IF LE Index: 46 Detailed Resource Information (ASIC_INSTANCE# 1) ---------------------------------------- ASIC#:1 RI:44 Rewrite_type:AL_RRM_REWRITE_IPV4_VXLAN_INNER_IPV4_ENCAP(110) Mapped_rii:LVX_L3_ENCAP_L2_PAYLOAD(123) Dst Mac: MAC Addr: ba:25:cd:f4:ad:38,
Src IP: 10.47.1.12 <-- Local RLOC
Dst IP: 10.47.1.13 <-- Edge-2 RLOC IPv4 TTL: 0 LISP INSTANCEID: 0 L3IF LE Index: 46 ==============================================================
底層下一躍點驗證
要到達LISP下一跳，底層中有兩個可能的路徑，一個路徑進行驗證，另一個底層下一跳的驗證應用相同的邏輯。
Edge-1#show ip route 10.47.1.13
Routing entry for 10.47.1.13/32
Known via "isis", distance 115, metric 30, type level-2
Redistributing via isis
Last update from 10.47.1.4 on GigabitEthernet1/0/2, 3d19h ago
Routing Descriptor Blocks:
10.47.1.4, from 10.47.1.13, 3d19h ago, via GigabitEthernet1/0/2
Route metric is 30, traffic share count is 1
* 10.47.1.0, from 10.47.1.13, 3d19h ago, via GigabitEthernet1/0/1
Route metric is 30, traffic share count is 1
要獲取有關下一跳的詳細資訊，請使用show platform software fed switch active ip adj
Edge-1#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 ---- ------- ------- ------ ------ -------- ------ ------------- 10.47.1.4 GigabitEthernet1/0/2 5254.001c.7de0 0x7f65ec8a5458 0x7f65ec8a4eb8 0x0 0x4c 2023/09/19 17:58:02.150 10.47.1.0 GigabitEthernet1/0/1 5254.000a.42f3 0x7f65ec8b8468 0x7f65ec8b8158 0x0 0x55 2023/09/19 17:58:08.864 <snip>
Underlay Next-Hop si_hdl解碼
採用si_hdl(0x7f65ec8a5458)並在命令show platform hardware fed switch active fwd-asic abstraction print-resource-handle <si_hdl> 1中使用
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ec8a5458 1 Handle:0x7f65ec8a5458 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: 0x7f65ec8a4eb8Hardware Indices/Handles: index0:0xbc mtu_index/l3u_ri_index0:0x0 index1:0xbc mtu_index/l3u_ri_index1:0x0 Features sharing this resource:66 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 26 00 00 00 00 00 00 00 00 00 00 00 08 00 52 54 00 1c 7d e0 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_INSTANCE# 0) ---------------------------------------- Station Index (SI) [0xbc] <-- Contains the RI and DI RI = 0x1a <-- Rewrite index contains information for L3 Forwarding DI = 0x526d <-- Destination index contains information for the destination port stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: LD Detailed Resource Information (ASIC_INSTANCE# 1) ----------------------------------------
Station Index (SI) [0xbc] <-- Contains the RI and DI
RI = 0x1a <-- Rewrite index contains information for L3 Forwarding
DI = 0x526d <-- Destination index contains information for the destination port stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0 Replication Bitmap: CD ==============================================================
底層下一躍點RI解碼
採用RI(0x1a)並在命令show platform hardware fed switch active fwd-asic resource asic all rewrite-index range <RI> <RI>中使用
Edge-1#show platform hardware fed switch active fwd-asic resource asic all rewrite-index range 0x1a 0x1a ASIC#:0 RI:26 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9) <-- Decimal 26 is hex 0x1a MAC Addr: MAC Addr: 52:54:00:1c:7d:e0, <-- MAC Address 5254.001c.7de0 corresponds to the next-hop L3IF LE Index 38 ASIC#:1 RI:26 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9)<-- Decimal 26 is hex 0x1a MAC Addr: MAC Addr: 52:54:00:1c:7d:e0, <-- MAC Address 5254.001c.7de0 corresponds to the next-hop L3IF LE Index 38
底層下一跳DI解碼
採用DI(0x526d)並在命令show platform hardware fed switch active fwd-asic resource asic all destination-index range <DI> <DI>中使用
Edge-1#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x526d 0x526d ASIC#0: Destination index = 0x526d pmap = 0x00000000 0x00000002 <-- Take decimal 2 and convert to binary, so 0010, and then count this binary right to left zero-based, so Port 1 pmap_intf : [GigabitEthernet1/0/2] 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: Destination index = 0x526d 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
Edge-1#show platform software fed switch active ifm mappings Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active GigabitEthernet1/0/1 0x1a 0 0 0 0 0 1 0 1 1 NIF Y GigabitEthernet1/0/2 0x1b 0 0 0 1 0 2 1 2 2 NIF Y <-- Port 1 maps to Gig1/0/2 GigabitEthernet1/0/3 0xb 0 0 0 2 0 3 2 3 3 NIF Y GigabitEthernet1/0/4 0xc 0 0 0 3 0 4 3 4 4 NIF Y GigabitEthernet1/0/5 0xd 0 0 0 4 0 5 4 5 5 NIF Y GigabitEthernet1/0/6 0xe 0 0 0 5 0 6 5 6 6 NIF Y GigabitEthernet1/0/7 0xf 0 0 0 6 0 7 6 7 7 NIF Y GigabitEthernet1/0/8 0x10 0 0 0 7 0 8 7 8 8 NIF Y
底層下一跳ri_hdl解碼
採用ri_hdl(0x7f65ec8b8158)並在命令show platform hardware fed switch active fwd-asic abstraction print-resource-handle <ri_hdl> 1中使用
Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f65ec8b8158 1 Handle:0x7f65ec8b8158 Res-Type:ASIC_RSC_RI 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: 0x7f65ec7a6338Hardware Indices/Handles: index0:0x1b mtu_index/l3u_ri_index0:0x0 index1:0x1b 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 52 54 00 0a 42 f3 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_INSTANCE# 0) ---------------------------------------- ASIC#:0 RI:27 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9) MAC Addr: MAC Addr: 52:54:00:0a:42:f3, L3IF LE Index 37 Detailed Resource Information (ASIC_INSTANCE# 1) ---------------------------------------- ASIC#:1 RI:27 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9) MAC Addr: MAC Addr: 52:54:00:0a:42:f3, L3IF LE Index 37 ==============================================================
封包會封裝在VXLAN中，並根據負載平衡規則傳送。嵌入式資料包捕獲(EPC)可用於同時捕獲所有介面上的流量。請記住，此時資料包是VXLAN封裝的，EPC過濾器必須針對RLOC到RLOC，而不是內部IPv4地址。
Edge-1#monitor capture 1 interface range g1/0/1-2 out match ipv4 host 10.47.1.12 host 10.47.1.13 Edge-1#monitor capture 1 start Started capture point : 1 Edge-1# Edge-1#monitor capture 1 stop Capture statistics collected at software: Capture duration - 18 seconds Packets received - 4 Packets dropped - 0 Packets oversized - 0 Number of Bytes dropped at asic not collected Capture buffer will exists till exported or cleared Stopped capture point : 1
Edge-1#show monitor capture 1 buffer brief Starting the packet display ........ Press Ctrl + Shift + 6 to exit 1 0.000000 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0046, seq=0/0, ttl=63 2 0.980849 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0046, seq=1/256, ttl=63 3 1.984077 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0046, seq=2/512, ttl=63 4 2.999989 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0046, seq=3/768, ttl=63
Edge-1#show monitor capture 1 buffer detailed Starting the packet display ........ Press Ctrl + Shift + 6 to exit Frame 1: 148 bytes on wire (1184 bits), 148 bytes captured (1184 bits) on interface /tmp/epc_ws/wif_to_ts_pipe, id 0 Interface id: 0 (/tmp/epc_ws/wif_to_ts_pipe) Interface name: /tmp/epc_ws/wif_to_ts_pipe Encapsulation type: Ethernet (1) Arrival Time: Oct 11, 2023 16:50:52.262553000 UTC [Time shift for this packet: 0.000000000 seconds] Epoch Time: 1697043052.262553000 seconds [Time delta from previous captured frame: 0.000000000 seconds] [Time delta from previous displayed frame: 0.000000000 seconds] [Time since reference or first frame: 0.000000000 seconds] Frame Number: 1 Frame Length: 148 bytes (1184 bits) Capture Length: 148 bytes (1184 bits) [Frame is marked: False] [Frame is ignored: False] [Protocols in frame: eth:ethertype:ip:udp:vxlan:eth:ethertype:ip:icmp:data] Ethernet II, Src: 00:00:00:00:00:00 (00:00:00:00:00:00), Dst: 00:00:00:00:00:00 (00:00:00:00:00:00) <-- EPC does not capture L3 rewrite on egress properly, this is OK Destination: 00:00:00:00:00:00 (00:00:00:00:00:00) Address: 00:00:00:00:00:00 (00:00:00:00:00:00) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Source: 00:00:00:00:00:00 (00:00:00:00:00:00) Address: 00:00:00:00:00:00 (00:00:00:00:00:00) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Type: IPv4 (0x0800) Internet Protocol Version 4, Src: 10.47.1.12, Dst: 10.47.1.13 <-- RLOC to RLOC 0100 .... = Version: 4 .... 0101 = Header Length: 20 bytes (5) Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT) 0000 00.. = Differentiated Services Codepoint: Default (0) .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0) Total Length: 134 Identification: 0x1d6f (7535) Flags: 0x4000, Don't fragment 0... .... .... .... = Reserved bit: Not set .1.. .... .... .... = Don't fragment: Set ..0. .... .... .... = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: UDP (17) Header checksum: 0x0682 [validation disabled] [Header checksum status: Unverified] Source: 10.47.1.12 Destination: 10.47.1.13 User Datagram Protocol, Src Port: 65354, Dst Port: 4789 Source Port: 65354 Destination Port: 4789 Length: 114 [Checksum: [missing]] [Checksum Status: Not present] [Stream index: 0] [Timestamps] [Time since first frame: 0.000000000 seconds] [Time since previous frame: 0.000000000 seconds] Virtual eXtensible Local Area Network Flags: 0x8800, GBP Extension, VXLAN Network ID (VNI) 1... .... .... .... = GBP Extension: Defined .... .... .0.. .... = Don't Learn: False .... 1... .... .... = VXLAN Network ID (VNI): True .... .... .... 0... = Policy Applied: False .000 .000 0.00 .000 = Reserved(R): 0x0000 Group Policy ID: 0 VXLAN Network Identifier (VNI): 4099 <-- LISP L3 IID Reserved: 0 Ethernet II, Src: 00:00:00:00:61:00 (00:00:00:00:61:00), Dst: ba:25:cd:f4:ad:38 (ba:25:cd:f4:ad:38) <-- Dummy Ethernet header for VXLAN Destination: ba:25:cd:f4:ad:38 (ba:25:cd:f4:ad:38) Address: ba:25:cd:f4:ad:38 (ba:25:cd:f4:ad:38) .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Source: 00:00:00:00:61:00 (00:00:00:00:61:00) Address: 00:00:00:00:61:00 (00:00:00:00:61:00) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Type: IPv4 (0x0800) Internet Protocol Version 4, Src: 10.47.4.2, Dst: 10.47.10.2 <-- True IPv4 addresses 0100 .... = Version: 4 .... 0101 = Header Length: 20 bytes (5) Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT) 0000 00.. = Differentiated Services Codepoint: Default (0) .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0) Total Length: 84 Identification: 0x92f6 (37622) Flags: 0x4000, Don't fragment 0... .... .... .... = Reserved bit: Not set .1.. .... .... .... = Don't fragment: Set ..0. .... .... .... = More fragments: Not set Fragment offset: 0 Time to live: 63 Protocol: ICMP (1) Header checksum: 0x8651 [validation disabled] [Header checksum status: Unverified] Source: 10.47.4.2 Destination: 10.47.10.2 Internet Control Message Protocol Type: 8 (Echo (ping) request) Code: 0 Checksum: 0xa383 [correct] [Checksum Status: Good] Identifier (BE): 70 (0x0046) Identifier (LE): 17920 (0x4600) Sequence number (BE): 0 (0x0000) Sequence number (LE): 0 (0x0000) Data (56 bytes) 0000 78 1e dc 17 00 00 00 00 00 00 00 00 00 00 00 00 x............... 0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0030 00 00 00 00 00 00 00 00 ........ Data: 781edc170000000000000000000000000000000000000000b^@& [Length: 56]
封裝的VXLAN封包抵達邊緣2:
Edge-2#monitor capture 1 interface range g1/0/1-2 in match ipv4 host 10.47.1.12 host 10.47.1.13 Edge-2#monitor capture 1 start Started capture point : 1 Edge-2#monitor capture 1 stop Capture statistics collected at software: Capture duration - 7 seconds Packets received - 6 Packets dropped - 0 Packets oversized - 0 Number of Bytes dropped at asic not collected Capture buffer will exists till exported or cleared Stopped capture point : 1
Edge-2#show monitor capture 1 buffer brief Starting the packet display ........ Press Ctrl + Shift + 6 to exit 1 0.000000 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0047, seq=0/0, ttl=63 2 0.007826 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0047, seq=0/0, ttl=63 3 0.086345 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0047, seq=1/256, ttl=63 4 0.097490 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0047, seq=1/256, ttl=63 5 1.150969 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0047, seq=2/512, ttl=63 6 1.163817 10.47.4.2 -> 10.47.10.2 ICMP 148 Echo (ping) request id=0x0047, seq=2/512, ttl=63
Edge-2#show monitor capture 1 buffer detailed Starting the packet display ........ Press Ctrl + Shift + 6 to exit Frame 1: 148 bytes on wire (1184 bits), 148 bytes captured (1184 bits) on interface /tmp/epc_ws/wif_to_ts_pipe, id 0 Interface id: 0 (/tmp/epc_ws/wif_to_ts_pipe) Interface name: /tmp/epc_ws/wif_to_ts_pipe Encapsulation type: Ethernet (1) Arrival Time: Oct 11, 2023 16:58:12.702159000 UTC [Time shift for this packet: 0.000000000 seconds] Epoch Time: 1697043492.702159000 seconds [Time delta from previous captured frame: 0.000000000 seconds] [Time delta from previous displayed frame: 0.000000000 seconds] [Time since reference or first frame: 0.000000000 seconds] Frame Number: 1 Frame Length: 148 bytes (1184 bits) Capture Length: 148 bytes (1184 bits) [Frame is marked: False] [Frame is ignored: False] [Protocols in frame: eth:ethertype:ip:udp:vxlan:eth:ethertype:ip:icmp:data] Ethernet II, Src: 52:54:00:0a:42:11 (52:54:00:0a:42:11), Dst: 52:54:00:17:fe:65 (52:54:00:17:fe:65) <-- True MAC addresses post L3 rewrite Destination: 52:54:00:17:fe:65 (52:54:00:17:fe:65) Address: 52:54:00:17:fe:65 (52:54:00:17:fe:65) .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Source: 52:54:00:0a:42:11 (52:54:00:0a:42:11) Address: 52:54:00:0a:42:11 (52:54:00:0a:42:11) .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Type: IPv4 (0x0800) Internet Protocol Version 4, Src: 10.47.1.12, Dst: 10.47.1.13 <-- RLOC to RLOC 0100 .... = Version: 4 .... 0101 = Header Length: 20 bytes (5) Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT) 0000 00.. = Differentiated Services Codepoint: Default (0) .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0) Total Length: 134 Identification: 0x1d7b (7547) Flags: 0x4000, Don't fragment 0... .... .... .... = Reserved bit: Not set .1.. .... .... .... = Don't fragment: Set ..0. .... .... .... = More fragments: Not set Fragment offset: 0 Time to live: 62 Protocol: UDP (17) Header checksum: 0x0876 [validation disabled] [Header checksum status: Unverified] Source: 10.47.1.12 Destination: 10.47.1.13 User Datagram Protocol, Src Port: 65354, Dst Port: 4789 Source Port: 65354 Destination Port: 4789 Length: 114 [Checksum: [missing]] [Checksum Status: Not present] [Stream index: 0] [Timestamps] [Time since first frame: 0.000000000 seconds] [Time since previous frame: 0.000000000 seconds] Virtual eXtensible Local Area Network Flags: 0x8800, GBP Extension, VXLAN Network ID (VNI) 1... .... .... .... = GBP Extension: Defined .... .... .0.. .... = Don't Learn: False .... 1... .... .... = VXLAN Network ID (VNI): True .... .... .... 0... = Policy Applied: False .000 .000 0.00 .000 = Reserved(R): 0x0000 Group Policy ID: 0 VXLAN Network Identifier (VNI): 4099 <-- LISP L3 IID Reserved: 0 Ethernet II, Src: 00:00:00:00:61:00 (00:00:00:00:61:00), Dst: ba:25:cd:f4:ad:38 (ba:25:cd:f4:ad:38) <-- Dummy Ethernet header for VXLAN Destination: ba:25:cd:f4:ad:38 (ba:25:cd:f4:ad:38) Address: ba:25:cd:f4:ad:38 (ba:25:cd:f4:ad:38) .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Source: 00:00:00:00:61:00 (00:00:00:00:61:00) Address: 00:00:00:00:61:00 (00:00:00:00:61:00) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Type: IPv4 (0x0800) Internet Protocol Version 4, Src: 10.47.4.2, Dst: 10.47.10.2 0100 .... = Version: 4 .... 0101 = Header Length: 20 bytes (5) Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT) 0000 00.. = Differentiated Services Codepoint: Default (0) .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0) Total Length: 84 Identification: 0x1abb (6843) Flags: 0x4000, Don't fragment 0... .... .... .... = Reserved bit: Not set .1.. .... .... .... = Don't fragment: Set ..0. .... .... .... = More fragments: Not set Fragment offset: 0 Time to live: 63 Protocol: ICMP (1) Header checksum: 0xfe8c [validation disabled] [Header checksum status: Unverified] Source: 10.47.4.2 Destination: 10.47.10.2 Internet Control Message Protocol Type: 8 (Echo (ping) request) Code: 0 Checksum: 0x044f [correct] [Checksum Status: Good] Identifier (BE): 71 (0x0047) Identifier (LE): 18176 (0x4700) Sequence number (BE): 0 (0x0000) Sequence number (LE): 0 (0x0000) Data (56 bytes) 0000 e8 37 0b 32 00 00 00 00 00 00 00 00 00 00 00 00 .7.2............ 0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0030 00 00 00 00 00 00 00 00 ........ Data: e8370b320000000000000000000000000000000000000000b^@& [Length: 56]
Edge-2將VXLAN標頭解除封裝，並查詢其ARP表，將ICMP請求轉發到10.47.10.2
Edge-2#show ip cef vrf red_vn 10.47.10.2 10.47.10.2/32 nexthop 10.47.10.2 Vlan1028
Edge-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 ---- ------- ------- ------ ------ -------- ------ ------------- 10.47.10.2 Vlan1028 5254.0002.cbf5 0x7f5744f89988 0x7f5744f8afa8 0x0 0x26 2023/10/09 18:57:59.026
<snip>
端點si_hdl解碼
採用si_hdl(0x7f5744f8988)並用於show platform hardware fed switch active fwd-asic abstraction print-resource-handle <si_hdl> 1
Edge-2#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f5744f89988 1 Handle:0x7f5744f89988 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:2 priv_ri/priv_si Handle: 0x7f5744f8afa8Hardware Indices/Handles: index0:0xc8 mtu_index/l3u_ri_index0:0x0 index1:0xc8 mtu_index/l3u_ri_index1:0x0 Features sharing this resource:66 (1)] 57 (1)] Cookie length: 56 00 00 00 00 00 00 00 00 04 04 00 00 00 00 00 00 00 00 00 00 07 00 52 54 00 02 cb f5 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_INSTANCE# 0) ---------------------------------------- Station Index (SI) [0xc8] <-- Station Index contains RI and DI RI = 0x2c <-- Rewrite Index contains information for L2 Forwarding DI = 0x526e <-- Rewrite Index contains destination port information stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0x1 Replication Bitmap: LD Detailed Resource Information (ASIC_INSTANCE# 1) ----------------------------------------
Station Index (SI) [0xc8] <-- Station Index contains RI and DI
RI = 0x2c <-- Rewrite Index contains information for L2 Forwarding
DI = 0x526e <-- Rewrite Index contains destination port information stationTableGenericLabel = 0 stationFdConstructionLabel = 0x7 lookupSkipIdIndex = 0 rcpServiceId = 0 dejaVuPreCheckEn = 0x1 Replication Bitmap: CD ==============================================================
終端RI解碼
採用RI(0x2c)並在命令show platform hardware fed switch active fwd-asic resource asic all rewrite-index range <RI> <RI>中使用
Edge-2#show platform hardware fed switch active fwd-asic resource asic all rewrite-index range 0x2c 0x2c ASIC#:0 RI:44 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9) <-- Decimal 44 is hex 0x2c MAC Addr: MAC Addr: 52:54:00:02:cb:f5, <-- MAC Address 5254.0002.cbf5 is 10.47.10.2 L3IF LE Index 50 ASIC#:1 RI:44 Rewrite_type:AL_RRM_REWRITE_L3_UNICAST_IPV4_SHARED(1) Mapped_rii:L3_UNICAST_IPV4(9) <-- Decimal 44 is hex 0x2c MAC Addr: MAC Addr: 52:54:00:02:cb:f5,<-- MAC Address 5254.0002.cbf5 is 10.47.10.2 L3IF LE Index 50
終端DI解碼
採用DI(0x526e)並用於show platform hardware fed switch active fwd-asic resource asic all destination-index range <DI> <DI>
Edge-2#show platform hardware fed switch active fwd-asic resource asic all destination-index range 0x526e 0x526e ASIC#0: Destination index = 0x526e pmap = 0x00000000 0x00000010 <-- Convert 10 into binary, 0001 and 0000, so 00010000, and count from right to left, zero-based, so Port 4 pmap_intf : [GigabitEthernet1/0/5] 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: Destination index = 0x526e 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
Edge-2#show platform software fed switch active ifm mappings Interface IF_ID Inst Asic Core Port SubPort Mac Cntx LPN GPN Type Active GigabitEthernet1/0/1 0x1a 0 0 0 0 0 1 0 1 1 NIF Y GigabitEthernet1/0/2 0x1b 0 0 0 1 0 2 1 2 2 NIF Y GigabitEthernet1/0/3 0xb 0 0 0 2 0 3 2 3 3 NIF Y GigabitEthernet1/0/4 0xc 0 0 0 3 0 4 3 4 4 NIF Y GigabitEthernet1/0/5 0xd 0 0 0 4 0 5 4 5 5 NIF Y <-- Port 4 corresponds to Gig1/0/5 GigabitEthernet1/0/6 0xe 0 0 0 5 0 6 5 6 6 NIF Y GigabitEthernet1/0/7 0xf 0 0 0 6 0 7 6 7 7 NIF Y GigabitEthernet1/0/8 0x10 0 0 0 7 0 8 7 8 8 NIF Y
Edge-2將封包解除封裝，並將其傳送到HOST-03所連線的輸出介面：
Edge-2#monitor capture 1 interface g1/0/5 out match ipv4 host 10.47.4.2 host 10.47.10.2 Edge-2#monitor capture 1 start Started capture point : 1 Edge-2#monitor capture 1 stop Capture statistics collected at software: Capture duration - 6 seconds Packets received - 3 Packets dropped - 0 Packets oversized - 0 Number of Bytes dropped at asic not collected Capture buffer will exists till exported or cleared Stopped capture point : 1
Edge-2#show monitor capture 1 buffer brief Starting the packet display ........ Press Ctrl + Shift + 6 to exit 1 0.000000 10.47.4.2 -> 10.47.10.2 ICMP 106 Echo (ping) request id=0x0048, seq=0/0, ttl=62 2 0.984985 10.47.4.2 -> 10.47.10.2 ICMP 106 Echo (ping) request id=0x0048, seq=1/256, ttl=62 3 1.985357 10.47.4.2 -> 10.47.10.2 ICMP 106 Echo (ping) request id=0x0048, seq=2/512, ttl=62
Edge-2#show monitor capture 1 buffer detailed Starting the packet display ........ Press Ctrl + Shift + 6 to exit Frame 1: 106 bytes on wire (848 bits), 106 bytes captured (848 bits) on interface /tmp/epc_ws/wif_to_ts_pipe, id 0 Interface id: 0 (/tmp/epc_ws/wif_to_ts_pipe) Interface name: /tmp/epc_ws/wif_to_ts_pipe Encapsulation type: Ethernet (1) Arrival Time: Oct 11, 2023 17:22:20.730331000 UTC [Time shift for this packet: 0.000000000 seconds] Epoch Time: 1697044940.730331000 seconds [Time delta from previous captured frame: 0.000000000 seconds] [Time delta from previous displayed frame: 0.000000000 seconds] [Time since reference or first frame: 0.000000000 seconds] Frame Number: 1 Frame Length: 106 bytes (848 bits) Capture Length: 106 bytes (848 bits) [Frame is marked: False] [Frame is ignored: False] [Protocols in frame: eth:ethertype:cmd:ethertype:ip:icmp:data] Ethernet II, Src: 00:00:00:00:61:00 (00:00:00:00:61:00), Dst: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff) <-- Dummy Ethernet header, EPC does not capture it properly Destination: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff) Address: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff) .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default) .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast) Source: 00:00:00:00:61:00 (00:00:00:00:61:00) Address: 00:00:00:00:61:00 (00:00:00:00:61:00) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) Type: CiscoMetaData (0x8909) Cisco MetaData Version: 1 Length: 1 Options: 0x0001 SGT: 0 Type: IPv4 (0x0800) Internet Protocol Version 4, Src: 10.47.4.2, Dst: 10.47.10.2 <-- True IP addresses 0100 .... = Version: 4 .... 0101 = Header Length: 20 bytes (5) Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT) 0000 00.. = Differentiated Services Codepoint: Default (0) .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0) Total Length: 84 Identification: 0x35e4 (13796) Flags: 0x4000, Don't fragment 0... .... .... .... = Reserved bit: Not set .1.. .... .... .... = Don't fragment: Set ..0. .... .... .... = More fragments: Not set Fragment offset: 0 Time to live: 62 Protocol: ICMP (1) Header checksum: 0xe463 [validation disabled] [Header checksum status: Unverified] Source: 10.47.4.2 Destination: 10.47.10.2 Internet Control Message Protocol Type: 8 (Echo (ping) request) Code: 0 Checksum: 0x2693 [correct] [Checksum Status: Good] Identifier (BE): 72 (0x0048) Identifier (LE): 18432 (0x4800) Sequence number (BE): 0 (0x0000) Sequence number (LE): 0 (0x0000) Data (56 bytes) 0000 69 9c 67 88 00 00 00 00 00 00 00 00 00 00 00 00 i.g............. 0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0030 00 00 00 00 00 00 00 00 ........ Data: 699c67880000000000000000000000000000000000000000b^@& [Length: 56]
修訂記錄
| 修訂 | 發佈日期 | 意見 |
|---|---|---|
1.0 |
12-Oct-2023 |
初始版本 |
意見