멀티 사이트 환경에서 EVPN/VxLAN 문제 해결
목차
소개
이 문서에서는 멀티사이트 환경에서 이더넷 VPN/EVPN/VxLAN(Virtual Extensible LAN)의 문제를 해결하는 방법을 설명합니다.
사전 요구 사항
요구 사항
다음 주제에 대한 지식을 보유하고 있으면 유용합니다.
- MPLS(Multiprotocol Label Switching) 레이어 3 VPN
- MP-BGP(Multiprotocol-Border Gateway Protocol)
- EVPN
사용되는 구성 요소
이 문서의 정보는 다음 소프트웨어 및 하드웨어 버전을 기반으로 합니다.
| 리프1# | N5K-C5672UP-16G-SUP | 시스템: 버전 7.3(0)N1(1) |
| 리프2# | N9K-C92160YC-X | NXOS: 버전 9.2(3) |
| spine1# | N9K-C9396PX | NXOS: 버전 9.2(3) |
| spine2# | N9K-C9396PX | NXOS: 버전 9.2(3) |
| 멀티사이트BG1# | N9K-C93108TC-EX | NXOS: 버전 9.2(3) |
| 멀티사이트BG2# | N9K-C93108TC-FX | NXOS: 버전 9.3(1) |
| 멀티사이트스파인2# | N9K-C9372TX-E | NXOS: 버전 9.2(3) |
| 멀티스테스파인1# | N9K-C92160YC-X | NXOS: 버전 9.2(3) |
| MultisteLeaf1# | N9K-C93108TC-EX | NXOS: 버전 7.0(3)I7(5) |
이 문서의 정보는 특정 랩 환경의 디바이스를 토대로 작성되었습니다. 이 문서에 사용된 모든 디바이스는 초기화된(기본) 컨피그레이션으로 시작되었습니다. 현재 네트워크가 작동 중인 경우 모든 명령의 잠재적인 영향을 미리 숙지하시기 바랍니다.
토폴로지
이 문서에서는 트래픽이 어디에서 발생하는지(DC-1, Host1/2 - 172.20.2.10/11) 그리고 목적지 DC-2, Host4(172.20.2.100)까지 패킷을 걸어 봅니다.
컨트롤 플레인 확인
트래픽 흐름: 
1단계. 소스 노드에서 올바른 IP, VLAN을 확인합니다.
ToLeaf1#show ip interface brief | exclude down Interface IP-Address OK? Method Status Protocol Vlan1000 172.20.2.10 YES NVRAM up up Vlan1001 172.21.1.10 YES NVRAM up up GigabitEthernet1/0/1 unassigned YES unset up up ToLeaf1#
이제 소스 노드에서 SVI-GW의 Vlan-1000으로 연결할 수 있습니다.
ToLeaf1#ping 172.20.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.20.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/205/1006 ms ToLeaf1#
2단계. 첫 번째 홉인 leaf1로 이동하여 Layer-2 및 Layer-3 레벨에서 확인합니다.
이제 leaf1이 소스 노드의 mac, arp를 학습하는지 여부를 확인합니다.
예, 소스 노드의 mac 주소(0035.1ac1.37c2), IP 172.20.2.10은 eth1/23에서 Vlan1000을 통해 학습됩니다.
leaf1#show mac address-table Legend: * - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC age - seconds since last seen,+ - primary entry using vPC Peer-Link VLAN MAC Address Type age Secure NTFY Ports/SWID.SSID.LID ---------+-----------------+--------+---------+------+----+------------------ * 1001 0000.2222.3333 static 0 F F sup-eth2 * 1001 0035.1ac1.37c3 dynamic 500 F F Eth1/23 * 1001 005d.738e.a337 static 0 F F nve1/10.111.111.2 * 1001 00c8.8bf9.5f42 dynamic 0 F F nve1/10.111.111.2 * 1001 6cb2.ae91.38bf static 0 F F nve1/10.200.200.22 * 1001 e0d1.73a4.1d42 dynamic 0 F F nve1/192.168.1.4 * 1000 0000.2222.3333 static 0 F F sup-eth2 * 1000 0035.1ac1.37c2 dynamic 70 F F Eth1/23 * 1000 005d.738e.a337 static 0 F F nve1/10.111.111.2 * 1000 00c8.8bf9.5f41 dynamic 0 F F nve1/10.111.111.2 * 1000 6cb2.ae91.38bf static 0 F F nve1/10.200.200.22 * 1000 e0d1.73a4.1d41 dynamic 0 F F nve1/192.168.1.4 leaf1#
Source-Leaf에서 ARP 테이블 확인
leaf1#show ip arp vrf all Flags: * - Adjacencies learnt on non-active FHRP router + - Adjacencies synced via CFSoE # - Adjacencies Throttled for Glean D - Static Adjacencies attached to down interface IP ARP Table for all contexts Total number of entries: 5 Address Age MAC Address Interface 172.21.1.10 00:08:14 0035.1ac1.37c3 Vlan1001 172.20.2.10 00:00:58 0035.1ac1.37c2 Vlan1000 10.31.121.1 00:08:14 2c31.24b0.bf46 mgmt0 172.16.1.1 00:07:51 0081.c41c.f007 Ethernet2/23 172.16.2.1 00:08:14 cc46.d68f.d74b Ethernet2/24 leaf1#
이는 leaf1이 소스 노드의 IP/mac 항목을 만들기 위해 메시지를 가져오는 방법을 보여줍니다.
leaf1#show system internal l2rib event-history mac | i 0035.1ac1.37c2 | be create [04/24/20 13:10:09.721 UTC 6 4173] (1000,0035.1ac1.37c2,3):MAC route created with seq num:0, flags:L (), soo:0, peerid:0 [04/24/20 13:10:09.732 UTC c 4173] (1000,0035.1ac1.37c2,3):Encoding MAC best route (ADD, client id 4) [04/24/20 13:10:09.871 UTC e 4173] (1000,0035.1ac1.37c2):Bound MAC-IP(172.20.2.10) to MAC, Total MAC-IP linked: 1 [04/24/20 13:10:42.651 UTC 1a 4173] Received MAC ROUTE msg: addr: (1000-0035.1ac1.37c2) vni: 0 admin_dist: 0 seq_num: 0 rt_flags: L soo: 0 dg_count: 0 res: 0 esi: (F) nh_count: 1 [04/24/20 13:10:42.651 UTC 1c 4173] (1000,0035.1ac1.37c2):Mobility check for new rte from prod: 3 [04/24/20 13:10:42.651 UTC 1d 4173] (1000,0035.1ac1.37c2):Current non-del-pending route local:yes, remote:no, linked mac-ip count:1 [04/24/20 13:10:42.651 UTC 1e 4173] (1000,0035.1ac1.37c2):Mobility type: local-to-local; New route SOO: 0, Seq num: 0; Existing route SOO: 0, Seq num: 0 [04/24/20 13:10:42.651 UTC 1f 4173] (1000,0035.1ac1.37c2):Local Update, Add to DB [04/24/20 13:10:42.651 UTC 20 4173] (1000,0035.1ac1.37c2,3):Using seq number from Recv-based route <........snipped for brevity...........> leaf1#
mac/IP 항목이 leaf1에서 어떻게 생성되었는지 확인한 후에는 mac/mac-ip 정보가 BGP와 연결되고 l2vpn/evpn 경로로 광고되는 중요한 관찰 지점 중 하나입니다.
leaf1#show bgp l2vpn evpn 0035.1ac1.37c2 Route Distinguisher: 192.168.1.3:33767 (L2VNI 2001002) BGP routing table entry for [2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216, version 99 Paths: (1 available, best #1) Flags: (0x00010a) on xmit-list, is not in l2rib/evpn Advertised path-id 1 Path type: local, path is valid, is best path AS-Path: NONE, path locally originated 192.168.1.3 (metric 0) from 0.0.0.0 (192.168.1.3) Origin IGP, MED not set, localpref 100, weight 32768 Received label 2001002 Extcommunity: RT:200:2001002 Path-id 1 advertised to peers: <<<<<<<<<<<<<<<<< Here we see MAC address is advertised as mac-only route to its SPINE peers 192.168.1.1 192.168.1.2 BGP routing table entry for [2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272, version 4 Paths: (1 available, best #1) Flags: (0x00010a) on xmit-list, is not in l2rib/evpn Advertised path-id 1 Path type: local, path is valid, is best path AS-Path: NONE, path locally originated 192.168.1.3 (metric 0) from 0.0.0.0 (192.168.1.3) Origin IGP, MED not set, localpref 100, weight 32768 Received label 2001002 900001 Extcommunity: RT:200:900001 RT:200:2001002 Path-id 1 advertised to peers: <<<<<<<<<<<<<<<<< Here we see MAC address is advertised as mac-IP route to its SPINE peers 192.168.1.1 192.168.1.2 leaf1#
이제 광고가 잎에서 등뼈까지 어떻게 생겼는지 확인해 보세요.
DC-1 Leaf1-Spine1 경로 확인
leaf1#show bgp l2vpn evpn neighbors 192.168.1.1 advertised-routes Peer 192.168.1.1 routes for address family L2VPN EVPN: BGP table version is 191, local router ID is 192.168.1.3 Status: s-suppressed, x-deleted, S-stale, d-dampened, h-history, *-valid, >-best Path type: i-internal, e-external, c-confed, l-local, a-aggregate, r-redist, I-injected Origin codes: i - IGP, e - EGP, ? - incomplete, | - multipath, & - backup Network Next Hop Metric LocPrf Weight Path Route Distinguisher: 10.100.100.21:33767 Route Distinguisher: 10.100.100.21:33768 Route Distinguisher: 10.100.100.22:33767 Route Distinguisher: 10.100.100.22:33768 Route Distinguisher: 192.168.1.3:33767 (L2VNI 2001002) *>l[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216 192.168.1.3 100 32768 i *>l[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272 192.168.1.3 100 32768 i Route Distinguisher: 192.168.1.3:33768 (L2VNI 2001001) *>l[2]:[0]:[0]:[48]:[0035.1ac1.37c3]:[0]:[0.0.0.0]/216 192.168.1.3 100 32768 i *>l[2]:[0]:[0]:[48]:[0035.1ac1.37c3]:[32]:[172.21.1.10]/272 192.168.1.3 100 32768 i Route Distinguisher: 192.168.1.4:33767 Route Distinguisher: 192.168.1.4:33768 Route Distinguisher: 192.168.2.4:33767 Route Distinguisher: 192.168.2.4:33768 Route Distinguisher: 192.168.1.3:3 (L3VNI 900001) leaf1#
DC-1 Leaf1-Spine2 경로 확인
leaf1#show bgp l2vpn evpn neighbors 192.168.1.2 advertised-routes Peer 192.168.1.2 routes for address family L2VPN EVPN: BGP table version is 191, local router ID is 192.168.1.3 Status: s-suppressed, x-deleted, S-stale, d-dampened, h-history, *-valid, >-best Path type: i-internal, e-external, c-confed, l-local, a-aggregate, r-redist, I-injected Origin codes: i - IGP, e - EGP, ? - incomplete, | - multipath, & - backup Network Next Hop Metric LocPrf Weight Path Route Distinguisher: 10.100.100.21:33767 Route Distinguisher: 10.100.100.21:33768 Route Distinguisher: 10.100.100.22:33767 Route Distinguisher: 10.100.100.22:33768 Route Distinguisher: 192.168.1.3:33767 (L2VNI 2001002) *>l[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216 192.168.1.3 100 32768 i *>l[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272 192.168.1.3 100 32768 i Route Distinguisher: 192.168.1.3:33768 (L2VNI 2001001) *>l[2]:[0]:[0]:[48]:[0035.1ac1.37c3]:[0]:[0.0.0.0]/216 192.168.1.3 100 32768 i *>l[2]:[0]:[0]:[48]:[0035.1ac1.37c3]:[32]:[172.21.1.10]/272 192.168.1.3 100 32768 i Route Distinguisher: 192.168.1.4:33767 Route Distinguisher: 192.168.1.4:33768 Route Distinguisher: 192.168.2.4:33767 Route Distinguisher: 192.168.2.4:33768 Route Distinguisher: 192.168.1.3:3 (L3VNI 900001) leaf1#
여러 개의 스파인이 있는 경우 서로 다른 스파인의 명령을 확인하여 확인합니다(경로 업데이트 유지).
DC-1에서 SPINE-1 및 SPINE-2는 Leaf1, Leaf2 및 BGW-1과 EVPN 네이버를 가집니다
spine1#show bgp l2vpn evpn summary BGP summary information for VRF default, address family L2VPN EVPN BGP router identifier 192.168.1.1, local AS number 200 BGP table version is 31, L2VPN EVPN config peers 3, capable peers 3 19 network entries and 19 paths using 4256 bytes of memory BGP attribute entries [17/2788], BGP AS path entries [1/6] BGP community entries [0/0], BGP clusterlist entries [0/0] Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.100.100.22 4 200 44002 43993 31 0 0 4w2d 11 192.168.1.3 4 200 43991 43989 31 0 0 4w2d 4 192.168.1.4 4 200 43996 43992 31 0 0 4w2d 4 spine1# spine2#show bgp l2vpn evpn summary BGP summary information for VRF default, address family L2VPN EVPN BGP router identifier 192.168.1.2, local AS number 200 BGP table version is 65, L2VPN EVPN config peers 3, capable peers 3 19 network entries and 19 paths using 4256 bytes of memory BGP attribute entries [17/2788], BGP AS path entries [1/6] BGP community entries [0/0], BGP clusterlist entries [0/0] Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.100.100.22 4 200 47140 47115 65 0 0 4w4d 11 192.168.1.3 4 200 47115 47112 65 0 0 4w4d 4 192.168.1.4 4 200 47121 47116 65 0 0 4w4d 4 spine2#
지금까지 SPINE 레이어까지 연결되었습니다. 이제 이것이 보더 게이트웨이(DC-1, BGW-1)로 전달되는지 여부를 확인하십시오.
spine2#show bgp l2vpn evpn neighbors 10.100.100.22 advertised-routes
Peer 10.100.100.22 routes for address family L2VPN EVPN:
BGP table version is 65, Local Router ID is 192.168.1.2
Status: s-suppressed, x-deleted, S-stale, d-dampened, h-history, *-valid, >-best
Path type: i-internal, e-external, c-confed, l-local, a-aggregate, r-redist, I-injected
Origin codes: i - IGP, e - EGP, ? - incomplete, | - multipath, & - backup, 2 - best2
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 10.100.100.21:33767
Route Distinguisher: 10.100.100.21:33768
Route Distinguisher: 10.100.100.22:27001
Route Distinguisher: 10.100.100.22:33767
Route Distinguisher: 10.100.100.22:33768
Route Distinguisher: 192.168.1.3:33767
*>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216
192.168.1.3 100 0 i
*>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272
192.168.1.3 100 0 i
Route Distinguisher: 192.168.1.3:33768
*>i[2]:[0]:[0]:[48]:[0035.1ac1.37c3]:[0]:[0.0.0.0]/216
192.168.1.3 100 0 i
*>i[2]:[0]:[0]:[48]:[0035.1ac1.37c3]:[32]:[172.21.1.10]/272
192.168.1.3 100 0 i
Route Distinguisher: 192.168.1.4:33767
*>i[2]:[0]:[0]:[48]:[e0d1.73a4.1d41]:[0]:[0.0.0.0]/216
192.168.1.4 100 0 i
*>i[2]:[0]:[0]:[48]:[e0d1.73a4.1d41]:[32]:[172.20.2.11]/272
192.168.1.4 100 0 i
Route Distinguisher: 192.168.1.4:33768
*>i[2]:[0]:[0]:[48]:[e0d1.73a4.1d42]:[0]:[0.0.0.0]/216
192.168.1.4 100 0 i
*>i[2]:[0]:[0]:[48]:[e0d1.73a4.1d42]:[32]:[172.21.1.11]/272
192.168.1.4 100 0 i
Route Distinguisher: 192.168.2.4:33767
Route Distinguisher: 192.168.2.4:33768
spine2#
<<<<<<<<<
>>>>>>
spine2#show bgp l2vpn evpn neighbors 10.100.100.22 advertised-routes | i 0035.1ac1.37c2 p 1 n 1
Route Distinguisher: 192.168.1.3:33767
*>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216
192.168.1.3 100 0 i
*>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272
192.168.1.3 100 0 i
spine2#
경로가 다른 사이트에 전파되는 DC-1의 BORDER 레이어에서 확인합니다.
그러면 BGW-1에서 누구와 어떤 경로로 얼마나 많은 경로가 교환되는지 볼 수 있습니다
DC-1 BGW-1
MultisiteBG1#show bgp l2vpn evpn summary BGP summary information for VRF default, address family L2VPN EVPN BGP router identifier 10.100.100.22, local AS number 200 BGP table version is 233, L2VPN EVPN config peers 3, capable peers 3 37 network entries and 45 paths using 7296 bytes of memory BGP attribute entries [37/6068], BGP AS path entries [1/6] BGP community entries [0/0], BGP clusterlist entries [4/16] Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.100.100.21 4 100 47145 47121 233 0 0 4w4d 8 192.168.1.1 4 200 47153 47125 233 0 0 18:52:35 8 192.168.1.2 4 200 47139 47119 233 0 0 4w4d 8 Neighbor T AS PfxRcd Type-2 Type-3 Type-4 Type-5 10.100.100.21 E 100 8 6 2 0 0 192.168.1.1 I 200 8 8 0 0 0 192.168.1.2 I 200 8 8 0 0 0 MultisiteBG1# MultisiteBG1#show bgp l2vpn evpn neighbors 10.100.100.21 advertised-routes Peer 10.100.100.21 routes for address family L2VPN EVPN: BGP table version is 233, Local Router ID is 10.100.100.22 Status: s-suppressed, x-deleted, S-stale, d-dampened, h-history, *-valid, >-best Path type: i-internal, e-external, c-confed, l-local, a-aggregate, r-redist, I-injected Origin codes: i - IGP, e - EGP, ? - incomplete, | - multipath, & - backup, 2 - best2 Network Next Hop Metric LocPrf Weight Path Route Distinguisher: 10.100.100.21:33767 Route Distinguisher: 10.100.100.21:33768 Route Distinguisher: 10.100.100.22:27001 (ES [0300.0000.0000.c800.0309 0]) *>l[4]:[0300.0000.0000.c800.0309]:[32]:[10.200.200.22]/136 10.200.200.22 100 32768 i Route Distinguisher: 10.100.100.22:33767 (L2VNI 2001002) *>l[2]:[0]:[0]:[48]:[6cb2.ae91.38bf]:[0]:[0.0.0.0]/216 10.200.200.22 100 32768 i *>l[3]:[0]:[32]:[10.200.200.22]/88 10.200.200.22 100 32768 i Route Distinguisher: 10.100.100.22:33768 (L2VNI 2001001) *>l[2]:[0]:[0]:[48]:[6cb2.ae91.38bf]:[0]:[0.0.0.0]/216 10.200.200.22 100 32768 i *>l[3]:[0]:[32]:[10.200.200.22]/88 10.200.200.22 100 32768 i Route Distinguisher: 192.168.1.3:33767 *>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216 192.168.1.3 100 0 i *>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272 192.168.1.3 100 0 i Route Distinguisher: 192.168.1.3:33768 *>i[2]:[0]:[0]:[48]:[0035.1ac1.37c3]:[0]:[0.0.0.0]/216 192.168.1.3 100 0 i *>i[2]:[0]:[0]:[48]:[0035.1ac1.37c3]:[32]:[172.21.1.10]/272 192.168.1.3 100 0 i Route Distinguisher: 192.168.1.4:33767 *>i[2]:[0]:[0]:[48]:[e0d1.73a4.1d41]:[0]:[0.0.0.0]/216 192.168.1.4 100 0 i *>i[2]:[0]:[0]:[48]:[e0d1.73a4.1d41]:[32]:[172.20.2.11]/272 192.168.1.4 100 0 i Route Distinguisher: 192.168.1.4:33768 *>i[2]:[0]:[0]:[48]:[e0d1.73a4.1d42]:[0]:[0.0.0.0]/216 192.168.1.4 100 0 i *>i[2]:[0]:[0]:[48]:[e0d1.73a4.1d42]:[32]:[172.21.1.11]/272 192.168.1.4 100 0 i Route Distinguisher: 192.168.2.4:33767 Route Distinguisher: 192.168.2.4:33768 MultisiteBG1# MultisiteBG1#show bgp l2vpn evpn neighbors 10.100.100.21 advertised-routes | i 0035.1ac1.37c2 p 1 n 1 Route Distinguisher: 192.168.1.3:33767 *>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216 192.168.1.3 100 0 i *>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272 192.168.1.3 100 0 i MultisiteBG1#
DC-2/BGW-2에서 경로가 수신되면 연결된 SPINE-1(192.168.2.1)에 대한 경로 광고가 표시됩니다
DC-2 BGW-2
MultisiteBG2#show bgp l2vpn evpn summary BGP summary information for VRF default, address family L2VPN EVPN BGP router identifier 10.100.100.21, local AS number 100 BGP table version is 142, L2VPN EVPN config peers 3, capable peers 2 43 network entries and 43 paths using 7680 bytes of memory BGP attribute entries [33/5412], BGP AS path entries [1/6] BGP community entries [0/0], BGP clusterlist entries [1/4] Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.100.100.22 4 200 47169 47124 142 0 0 4w4d 12 192.168.2.1 4 100 47136 47124 142 0 0 4w4d 4 192.168.2.2 4 100 45969 45963 0 0 0 19:21:40 Idle Neighbor T AS PfxRcd Type-2 Type-3 Type-4 Type-5 10.100.100.22 E 200 12 10 2 0 0 192.168.2.1 I 100 4 4 0 0 0 192.168.2.2 I 100 Idle 0 0 0 0 MultisiteBG2# MultisiteBG2#show bgp l2vpn evpn neighbors 192.168.2.1 advertised-routes | i 0035.1ac1.37c2 p 1 n 1 Route Distinguisher: 192.168.1.3:33767 *>e[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216 10.111.111.2 2000 0 200 i *>e[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272 10.111.111.2 2000 0 200 i MultisiteBG2#
경로는 목적지가 연결된 DC-2, Leaf-1로 더 광고됩니다.
DC-2 스파인-리프 경로 알림
Multistespine1#show bgp l2vpn evpn summary BGP summary information for VRF default, address family L2VPN EVPN BGP router identifier 192.168.2.1, local AS number 100 BGP table version is 50, L2VPN EVPN config peers 3, capable peers 2 19 network entries and 19 paths using 4256 bytes of memory BGP attribute entries [15/2460], BGP AS path entries [1/6] BGP community entries [0/0], BGP clusterlist entries [0/0] Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.100.100.21 4 100 47152 47131 50 0 0 4w4d 15 192.168.2.3 4 100 0 0 0 0 0 4w4d Idle 192.168.2.4 4 100 47135 47131 50 0 0 4w4d 4 Multistespine1# Multistespine1#show bgp l2vpn evpn neighbors 192.168.2.4 advertised-routes | i 0035.1ac1.37c2 p 1 n 1 Route Distinguisher: 192.168.1.3:33767 *>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[0]:[0.0.0.0]/216 10.111.111.1 2000 100 0 200 i *>i[2]:[0]:[0]:[48]:[0035.1ac1.37c2]:[32]:[172.20.2.10]/272 10.111.111.1 2000 100 0 200 i Multistespine1#
이제 레이어 2 토폴로지가 DC-1, Leaf-1에서 DC-2, Leaf-1로 확장되었습니다.
DC-2 Leaf-1 확인
MultisteLeaf1#show bgp l2vpn evpn summary BGP summary information for VRF default, address family L2VPN EVPN BGP router identifier 192.168.2.4, local AS number 100 BGP table version is 188, L2VPN EVPN config peers 2, capable peers 1 36 network entries and 36 paths using 6120 bytes of memory BGP attribute entries [16/2560], BGP AS path entries [1/6] BGP community entries [0/0], BGP clusterlist entries [1/4] Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 192.168.2.1 4 100 47152 47133 188 0 0 4w4d 14 192.168.2.2 4 100 45981 45968 0 0 0 19:26:17 Idle MultisteLeaf1# MultisteLeaf1#show mac address-table Legend: * - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC age - seconds since last seen,+ - primary entry using vPC Peer-Link, (T) - True, (F) - False, C - ControlPlane MAC, ~ - vsan VLAN MAC Address Type age Secure NTFY Ports ---------+-----------------+--------+---------+------+----+------------------ * 1 00c8.8bf9.5f01 dynamic 0 F F Eth1/16 * 101 00be.75f4.544d static - F F Vlan101 * 101 0200.0a6f.6f01 static - F F nve1(10.111.111.1) C 1000 0035.1ac1.37c2 dynamic 0 F F nve1(10.111.111.1) <<<<<<<<<<<<<<<<<< * 1000 00c8.8bf9.5f41 dynamic 0 F F Eth1/16 C 1000 e0d1.73a4.1d41 dynamic 0 F F nve1(10.111.111.1) C 1001 0035.1ac1.37c3 dynamic 0 F F nve1(10.111.111.1) * 1001 00c8.8bf9.5f42 dynamic 0 F F Eth1/16 C 1001 e0d1.73a4.1d42 dynamic 0 F F nve1(10.111.111.1) G - 0000.2222.3333 static - F F sup-eth1(R) G - 00be.75f4.544d static - F F sup-eth1(R) G 101 00be.75f4.544d static - F F sup-eth1(R) G 1000 00be.75f4.544d static - F F sup-eth1(R) G 1001 00be.75f4.544d static - F F sup-eth1(R) MultisteLeaf1#
DC-2, Leaf-1에서 Vlan1000을 통해 Host-4 Mac을 학습했습니다.
MultisteLeaf1#show ip arp vrf vxlan-900001 Flags: * - Adjacencies learnt on non-active FHRP router + - Adjacencies synced via CFSoE # - Adjacencies Throttled for Glean CP - Added via L2RIB, Control plane Adjacencies PS - Added via L2RIB, Peer Sync RO - Re-Originated Peer Sync Entry D - Static Adjacencies attached to down interface IP ARP Table for context vxlan-900001 Total number of entries: 2 Address Age MAC Address Interface Flags 172.21.1.100 00:04:09 00c8.8bf9.5f42 Vlan1001 172.20.2.100 00:04:09 00c8.8bf9.5f41 Vlan1000 MultisteLeaf1#
데이터 플레인 문제 해결
여러 디바이스에서 데이터 계획 검증을 테스트하여 다양한 패킷 캡처 방법 및 변형을 이해합니다.
이 예에서 목적지 leaf인 N5K에서 확대
SOURCE: 172.20.2.100 (Host-4) DESTINATION: 172.20.2.10 (Host-1)
Source-Host4에 대한 기본 검사
toMultisiteLeaf1#show ip interface brief | exclude down Interface IP-Address OK? Method Status Protocol Vlan1000 172.20.2.100 YES NVRAM up up Vlan1001 172.21.1.100 YES NVRAM up up GigabitEthernet2/0/1 unassigned YES unset up up toMultisiteLeaf1# INTIATE A PING TO HOST-1: toMultisiteLeaf1#ping 172.20.2.10 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.20.2.10, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/8 ms toMultisiteLeaf1#
대상 리프-1 검사
leaf1#show cdp neighbors Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge S - Switch, H - Host, I - IGMP, r - Repeater, V - VoIP-Phone, D - Remotely-Managed-Device, s - Supports-STP-Dispute Device-ID Local Intrfce Hldtme Capability Platform Port ID MX066-H-01-SW.cisco.com mgmt0 178 S I WS-C2960X-48TS-L Gig1/0/26 ToLeaf1 Eth1/23 132 S I WS-C3750X-24S Gig1/0/1 <<<<<<<<<<<<<<<<< To DC-1/Host-1 spine1(SAL2024RRYF) Eth2/23 136 R S s N9K-C9372PX-E Eth1/3 spine2(SAL1949UELD) Eth2/24 138 R S s N9K-C9396PX Eth1/7 leaf1# leaf1# leaf1#show module Mod Ports Module-Type Model Status --- ----- ----------------------------------- ---------------------- ----------- 0 0 Nexus 72UP 16GFC Supervisor N5K-C5672UP-16G-SUP active * 1 24 Nexus 24xSFP Ethernet Module N5600-72UP16GFC ok <<<<<<<<<<<<<<<<< To DC-1/Host-1 2 24 Nexus 24xSFP Ethernet/FC Module N5600-72UP16GFC-FC ok 3 6 Nexus 6xQSFP Ethernet Module N5600-72UP16GFC-M6Q ok Mod Sw Hw World-Wide-Name(s) (WWN) --- -------------- ------ --------------------------------------------------- 0 7.3(0)N1(1) 1.5 -- 1 7.3(0)N1(1) 1.5 -- 2 7.3(0)N1(1) 1.5 -- 3 7.3(0)N1(1) 1.5 -- Mod MAC-Address(es) Serial-Num --- -------------------------------------- ---------- 0 00de.fb01.9f88 to 00de.fb01.9f88 FOC20162AGC 1 00de.fb01.9f88 to 00de.fb01.9f9f FOC20162AGC 2 00de.fb01.9fa0 to 00de.fb01.9fb7 FOC20162AGC 3 00de.fb01.9fb8 to 00de.fb01.9fcf FOC20162AGC leaf1#
이제 asic/인스턴스 매핑을 확인하는 방법을 알아보십시오.
leaf1#show platform fwm info pif eth1/23 | i i slot_asic Eth1/23 pd: slot 0 logical port num 22 slot_asic_num 1 global_asic_num 2 fw_inst 10 phy_fw_inst 2 fc 0 leaf1# leaf1#show hardware internal bigsur all-ports | i "asic|idx|1/23" Port |asic|inst|inst| name |idx |slot|asic|eport|logi|flag|adm|opr|if_index|diag|ucVer 1gb1/23 |2 |0 |1 |10 p |22 |b3 |en |up |1a016000|pass| 0.00 leaf1#
여기에서 Leaf-1에서 Host-1로 이그레스(egress)되는 패킷을 볼 수 있습니다.
leaf1#elam slot 1 asic bigsur instance 1 leaf1(bigsur-elam)#trigger lu egress ipv4 if destination-ipv4-address_ipv4 172.20.2.10 leaf1(bigsur-elam)#start capture leaf1(bigsur-elam)#show capture lu Egress Interface: Ethernet1/23 IS NOT A PC <<<<<<<<<<<<<<<<< ELAM is smart, we have a catalyst switch as HOST-1 :-) +-----------------------------------------+ | Lookup Vector | +--------------------+--------------------+ | Field | Raw Value | +--------------------+--------------------+ | SID | 21 | | PKT_ID | 13 | | TUN_VLD | 0 | | TUN_TYPE | 0 | | TUN_IF | 0 | | TUN_INST | 0 | | ERSPAN_TERM_VLD | 0 | | ERSPAN_DST_IF_IDX | 0 | | L2MP_VLD | 1 | | TRILL_ODA | 0x000000000000 | | TRILL_OQTAG_VLD | 0 | | TRILL_OQTAG_DE | 0 | | TRILL_DCE_FTAG_VLD | 0 | | TRILL_DCE_LID_VLD | 0 | | TRILL_VRM | 0 | | TRILL_OPT_VLD | 0 | | TRILL_OPT_BYTE0 | 0 | | CDCE_DA | 0x020abc000004 | | CDCE_SA | 0x022001000000 | | CDCE_DTAG_ETYPE | 0x0200 | | CDCE_DTAG_TTL | 32 | | CDCE_DTAG_FTAG | 2 | | NSH_WORD2 | 0x3e70080 | | CE_DA | 0x00351ac137c2 |<<<<<<<<<<<<<<<<< Destination Mac address (Host-1 172.20.2.10) | CE_SA | 0x00c88bf95f41 |<<<<<<<<<<<<<<<<< Source Mac address (Host-4 172.20.2.100) | VNIC_VLD | 0 | | CE_1Q_NUM | 1 | | INT_VLAN | 999 | | IP_RESV_0 | 0 | | FCOE_VLD | 0 | | MPLS_VLD | 0 | | VEC_TYPE | 0 | | TRILL_OSA | 0x000000000000 | | CMD_SGT_VLD | 0 | | CMD_SGT | 0 | | CMD_DGT_VLD | 0 | | CMD_DGT | 0 | | HDRP_SNAP | 0 | | L3_IPV6 | 0 | | L3_SA | 172.20.2.100 |<<<<<<<<<<<<<<<<< Source IP | L3_DA | 172.20.2.10 |<<<<<<<<<<<<<<<<< Destination IP | L3_TOS | 0 | | L3_FRAG | 0 | | L3_MF | 0 | | L3_TTL | 255 | | L3_OPT_NONE | 0 | | L3_NONE_HBH | 0 | | L3_NONE_ROUTE | 0 | | L3_NONE_FRAG | 0 | | L3_NONE_DEST | 0 | | L3_AH | 0 | | L3_ESP | 0 | | L3_PROT | 1 |<<<<<<<<<<<<<<<<< ICMP | L3_LENGTH | 100 | | MAX_IPV6_HBH | 0 | | MAX_IPV6_FRAG | 0 | | L4_TCP_UDP | 0 | | IP_RESV_1 | 0 | +--------------------+--------------------+ | PYLD_LEN | 4 | | PARSE_ERR | 0 | | PARSE_UNEXP | 0 | | ECN_DROP | 0 | | IDS_FAIL | 0 | | IDS_CODE | 0 | | LKUP_SPARE | 0 | +--------------------+--------------------+ leaf1(bigsur-elam)#
이제 N5K에서 패킷을 캡처하는 방법을 이해할 수 있습니다. N9K에서 확대해 보겠습니다.
Host-4에서 시작하여 Host-2에 대해 간단한 ping을 수행할 수 있습니다. LEAF 스위치에 대한 트랜짓 트래픽이지만, 에서는 이러한 패킷을 올바르게 처리할 수 있는지 여부를 확인합니다. DC-1/Leaf-2에서 확인합니다.
확인하려면 인터페이스 eth-1/23을 모니터링하고 해당 패킷을 CPU에 푸시한 다음 ethanalyzer/dmirror를 실행합니다.
모니터 세션 구성
leaf2#configure terminal leaf2(config)#monitor session 1 leaf2(config-monitor)#source interface ethernet 1/23 leaf2(config-monitor)#destination interface sup-eth 0 leaf2(config-monitor)#no shut leaf2(config-monitor)#exit toMultisiteLeaf1#ping 172.20.2.11 repeat 2 Type escape sequence to abort. Sending 2, 100-byte ICMP Echos to 172.20.2.11, timeout is 2 seconds: !! Success rate is 100 percent (2/2), round-trip min/avg/max = 1/1/1 ms toMultisiteLeaf1#
leaf2#ethanalyzer local interface inband mirror Capturing on inband 2020-05-27 12:20:57.081654 172.20.2.100 -> 172.20.2.11 ICMP Echo (ping) request 2020-05-27 12:20:57.082193 172.20.2.11 -> 172.20.2.100 ICMP Echo (ping) reply 2020-05-27 12:20:57.084902 172.20.2.100 -> 172.20.2.11 ICMP Echo (ping) request 2020-05-27 12:20:57.087406 172.20.2.11 -> 172.20.2.100 ICMP Echo (ping) reply 4 packets captured leaf2# leaf2#ethanalyzer local interface inband display-filter "ip.addr==172.20.2.100 && ip.addr==172.20.2.11 && icmp" limit-captured-frames 0 Capturing on inband 2020-05-27 12:20:57.081654 172.20.2.100 -> 172.20.2.11 ICMP Echo (ping) request 2020-05-27 12:20:57.082193 172.20.2.11 -> 172.20.2.100 ICMP Echo (ping) reply 2020-05-27 12:20:57.084902 172.20.2.100 -> 172.20.2.11 ICMP Echo (ping) request 2020-05-27 12:20:57.087406 172.20.2.11 -> 172.20.2.100 ICMP Echo (ping) reply 4 packets captured leaf2#
소스에서 일부 데이터를 전송하고 대상 리프에 캡처하려는 경우 다음 절차를 수행합니다.
- Host-4에서 Host-2로의 ping을 시작합니다.
- 소스: 172.20.2.100 // 소스 MAC 주소: 00:C8:8B:F9:5F:41
- 대상: 172.20.2.11 // Dst MAC 주소: E0:D1:73:A4:1D:41
- 패킷 크기: 777
- 조각화 금지: 예
- 데이터 패턴 문자열: beef
이 예에서는 소스 및 대상 리프의 패킷을 캡처할 수 있도록 충분한 패킷 수가 있습니다.
toMultisiteLeaf1#ping 172.20.2.11 repeat 200000 data beef df-bit validate size 777 Type escape sequence to abort. Sending 200000, 777-byte ICMP Echos to 172.20.2.11, timeout is 2 seconds: Packet sent with the DF bit set Packet has data pattern 0xBEEF Reply data will be validated !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! <...................> !!!!!!!!!!!!!!!!!!!!!!!!!! Success rate is 100 percent (7376/7376), round-trip min/avg/max = 1/5/151 ms toMultisiteLeaf1#
첫 번째 HopDC-2, Leaf-1에 대한 기본 검사
MultisteLeaf1#show module Mod Ports Module-Type Model Status --- ----- ------------------------------------- --------------------- --------- 1 54 48x10GT + 6x40G/100G Ethernet Module N9K-C93108TC-EX active * Mod Sw Hw Slot --- ---------------- ------ ---- 1 7.0(3)I7(5) 1.3 NA Mod MAC-Address(es) Serial-Num --- -------------------------------------- ---------- 1 00-be-75-f4-54-46 to 00-be-75-f4-54-95 FDO220225UX Mod Online Diag Status --- ------------------ 1 Pass * this terminal session MultisteLeaf1# MultisteLeaf1#show cdp neighbors Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge S - Switch, H - Host, I - IGMP, r - Repeater, V - VoIP-Phone, D - Remotely-Managed-Device, s - Supports-STP-Dispute Device-ID Local Intrfce Hldtme Capability Platform Port ID MX066-H-03-SW.cisco.com mgmt0 141 S I WS-C2960X-48T Gig1/0/31 Multistespine1(FDO22150SJZ) Eth1/6 142 R S s N9K-C92160YC- Eth1/47 toMultisiteLeaf1 Eth1/16 128 R S I WS-C3750X-24S Gig2/0/1 <<<<<<<<<<<< Towards Host-4 Total entries displayed: 3 MultisteLeaf1# MultisteLeaf1#show hardware internal tah interface et1/16 ######################################### IfIndex: 0x1a001e00 DstIndex: 6084 IfType: 26 Asic: 0 Asic: 0 <<<<<<<<<<<<<<<<< AsicPort: 11 SrcId: 22 <<<<<<<<<<<<<<<<< Slice: 0 <<<<<<<<<<<<<<<<< PortOnSlice: 11 Table entries for interface Ethernet1/16 <........snipped for brevity...........>
MultisteLeaf1#show system internal ethpm info interface ethernet 1/16 | grep slice IF_STATIC_INFO: port_name=Ethernet1/16,if_index:0x1a001e00,ltl=6084,slot=0, nxos_port=60,dmod=1,dpid=11,unit=0,queue=65535,xbar_unitbmp=0x0,ns_pid=255,slice_num=0,port_on_slice=11,src_id=22 MultisteLeaf1#
Host-4에서 패킷을 실제로 수신한 하드웨어 레벨에서 확인합니다.
MultisteLeaf1#attach module 1 module-1#debug platform internal tah elam asic 0 module-1(TAH-elam)#trigger init asic 0 slice 0 in-select 6 out-select 0 use-src-id 22 param values: start asic 0, start slice 0, lu-a2d 1, in-select 6, out-select 0, src_id 22 module-1(TAH-elam-insel6)#start module-1(TAH-elam-insel6)#report Initting block addresses SUGARBOWL ELAM REPORT SUMMARY slot - 1, asic - 0, slice - 0 ============================ Incoming Interface: Eth1/16 Src Idx : 0x3d, Src BD : 1000 Outgoing Interface Info: dmod 1, dpid 17 Dst Idx : 0x15, Dst BD : 1000 Packet Type: IPv4 Dst MAC address: E0:D1:73:A4:1D:41 Src MAC address: 00:C8:8B:F9:5F:41 .1q Tag0 VLAN: 1000, cos = 0x0 Dst IPv4 address: 172.20.2.11 Src IPv4 address: 172.20.2.100 Ver = 4, DSCP = 0, Don't Fragment = 1 Proto = 1, TTL = 255, More Fragments = 0 Hdr len = 20, Pkt len = 777, Checksum = 0xcffe L4 Protocol : 1 ICMP type : 8 ICMP code : 0 Drop Info: ---------- LUA: LUB: LUC: LUD: Final Drops: module-1(TAH-elam-insel6)# exit module-1(TAH-elam)# exit module-1# exit MultisteLeaf1#
pcap로 보려면 계속 ping하도록 두십시오. 모니터 세션은 소스 및 대상 leaf에 구성됩니다.
소스 리프의 세션 모니터링
MultisteLeaf1#show run | section monitor monitor session 1 source interface Ethernet1/16 both destination interface sup-eth0 no shut MultisteLeaf1#
대상 리프의 세션 모니터링
leaf2(config)#show run | section monitor monitor session 1 source interface Ethernet1/23 both destination interface sup-eth0 no shut leaf2(config)#
소스 리프에서 캡처
MultisteLeaf1#ethanalyzer local interface inband display-filter "ip.addr==172.20.2.100 && ip.addr==172.20.2.11 && icmp" limit-captured-frames 0 detail Capturing on inband Frame 1 (791 bytes on wire, 791 bytes captured) Arrival Time: May 31, 2020 15:44:46.767411000 [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: 791 bytes Capture Length: 791 bytes [Frame is marked: False] [Protocols in frame: eth:ip:icmp:data] Ethernet II, Src: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41), Dst: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) Destination: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) Address: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Address: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: IP (0x0800) Internet Protocol, Src: 172.20.2.11 (172.20.2.11), Dst: 172.20.2.100 (172.20.2.100) <<<<<<<<<<<<<<<<<<<<< RETURN TRAFFIC (ICMP RESPONSE) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 777 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< PACKET SIZE IS 777 Identification: 0xaf53 (44883) Flags: 0x02 (Don't Fragment) 0.. = Reserved bit: Not Set .1. = Don't fragment: Set <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< DF-BIT IS SET ..0 = More fragments: Not Set Fragment offset: 0 Time to live: 255 Protocol: ICMP (0x01) Header checksum: 0xbd2d [correct] [Good: True] [Bad : False] Source: 172.20.2.11 (172.20.2.11) Destination: 172.20.2.100 (172.20.2.100) Internet Control Message Protocol Type: 0 (Echo (ping) reply) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< PING RESPONSE Code: 0 () Checksum: 0x78f3 [correct] Identifier: 0x001c Sequence number: 7412 (0x1cf4) Data (749 bytes) 0000 00 00 00 00 14 67 5f 13 be ef be ef be ef be ef .....g_......... <<<<<<<<<<<<<<<<<< you see the data pattern as "beef" 0010 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0020 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0030 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0040 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0050 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0060 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0070 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0080 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0090 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0100 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0110 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0120 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0130 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0140 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0150 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0160 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0170 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0180 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0190 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0200 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0210 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0220 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0230 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0240 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0250 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0260 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0270 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0280 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0290 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02e0 be ef be ef be ef be ef be ef be ef 00 ............. Data: 0000000014675F13BEEFBEEFBEEFBEEFBEEFBEEFBEEFBEEF... [Length: 749] Frame 2 (795 bytes on wire, 795 bytes captured) Arrival Time: May 31, 2020 15:44:46.802363000 [Time delta from previous captured frame: 0.034952000 seconds] [Time delta from previous displayed frame: 0.034952000 seconds] [Time since reference or first frame: 0.034952000 seconds] Frame Number: 2 Frame Length: 795 bytes Capture Length: 795 bytes [Frame is marked: False] [Protocols in frame: eth:vlan:ip:icmp:data] Ethernet II, Src: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41), Dst: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Destination: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Address: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) Address: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: 802.1Q Virtual LAN (0x8100) 802.1Q Virtual LAN, PRI: 0, CFI: 0, ID: 1000 000. .... .... .... = Priority: 0 ...0 .... .... .... = CFI: 0 .... 0011 1110 1000 = ID: 1000 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< VLAN-ID Type: IP (0x0800) Internet Protocol, Src: 172.20.2.100 (172.20.2.100), Dst: 172.20.2.11 (172.20.2.11) <<<<<<<<<<<<<<<<<<<<< FORWARD TRAFFIC (ICMP REQUEST) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 777 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< PACKET SIZE Identification: 0xaf59 (44889) Flags: 0x02 (Don't Fragment) 0.. = Reserved bit: Not Set .1. = Don't fragment: Set ..0 = More fragments: Not Set Fragment offset: 0 Time to live: 255 Protocol: ICMP (0x01) Header checksum: 0xbd27 [correct] [Good: True] [Bad : False] Source: 172.20.2.100 (172.20.2.100) Destination: 172.20.2.11 (172.20.2.11) Internet Control Message Protocol Type: 8 (Echo (ping) request) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ICMP REQUEST Code: 0 () Checksum: 0x70aa [correct] Identifier: 0x001c Sequence number: 7418 (0x1cfa) Data (749 bytes) 0000 00 00 00 00 14 67 5f 56 be ef be ef be ef be ef .....g_V........ <<<<<<<<<<<<<<<<<<<<< DATA PATTER AS CONFIGURED (beef) 0010 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0020 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0030 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0040 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0050 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0060 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0070 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0080 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0090 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0100 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0110 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0120 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0130 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0140 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0150 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0160 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0170 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0180 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0190 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0200 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0210 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0220 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0230 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0240 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0250 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0260 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0270 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0280 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0290 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02e0 be ef be ef be ef be ef be ef be ef 00 ............. Data: 0000000014675F56BEEFBEEFBEEFBEEFBEEFBEEFBEEFBEEF... [Length: 749] <.................> <.................> Frame 3 (795 bytes on wire, 795 bytes captured) Arrival Time: May 31, 2020 15:44:46.840861000 [Time delta from previous captured frame: 0.038498000 seconds] [Time delta from previous displayed frame: 0.038498000 seconds] [Time since reference or first frame: 0.073450000 seconds] Frame Number: 3 Frame Length: 795 bytes Capture Length: 795 bytes [Frame is marked: False] [Protocols in frame: eth:vlan:ip:icmp:data] Ethernet II, Src: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41), Dst: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Destination: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Address: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) Address: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: 802.1Q Virtual LAN (0x8100) 802.1Q Virtual LAN, PRI: 0, CFI: 0, ID: 1000 000. .... .... .... = Priority: 0 ...0 .... .... .... = CFI: 0 .... 0011 1110 1000 = ID: 1000 <<<<<<<<<<<<<<<<<<<<< VLAN-ID Type: IP (0x0800) Internet Protocol, Src: 172.20.2.100 (172.20.2.100), Dst: 172.20.2.11 (172.20.2.11) <<<<<<<<<<<<<<<<<<<<< FORWARD TRAFFIC (ICMP REQUEST) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 777 <<<<<<<<<<<<<<<<<<<<< PACKET SIZE Identification: 0xaf60 (44896) Flags: 0x02 (Don't Fragment) 0.. = Reserved bit: Not Set .1. = Don't fragment: Set ..0 = More fragments: Not Set Fragment offset: 0 Time to live: 255 Protocol: ICMP (0x01) Header checksum: 0xbd20 [correct] [Good: True] [Bad : False] Source: 172.20.2.100 (172.20.2.100) Destination: 172.20.2.11 (172.20.2.11) Internet Control Message Protocol Type: 8 (Echo (ping) request) <<<<<<<<<<<<<<<<<<<<< ICMP REQUEST Code: 0 () Checksum: 0x7081 [correct] Identifier: 0x001c Sequence number: 7425 (0x1d01) Data (749 bytes) 0000 00 00 00 00 14 67 5f 78 be ef be ef be ef be ef .....g_x........ <<<<<<<<<<<<<<<<<<<<< DATA PATTER AS CONFIGURED (beef) 0010 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0020 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0030 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0040 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0050 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0060 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0070 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0080 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0090 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0100 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0110 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0120 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0130 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0140 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0150 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0160 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0170 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0180 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0190 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0200 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0210 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0220 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0230 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0240 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0250 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0260 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0270 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0280 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0290 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02e0 be ef be ef be ef be ef be ef be ef 00 ............. Data: 0000000014675F78BEEFBEEFBEEFBEEFBEEFBEEFBEEFBEEF... [Length: 749] Frame 4 (795 bytes on wire, 795 bytes captured) Arrival Time: May 31, 2020 15:44:46.888728000 [Time delta from previous captured frame: 0.047867000 seconds] [Time delta from previous displayed frame: 0.047867000 seconds] [Time since reference or first frame: 0.121317000 seconds] Frame Number: 4 Frame Length: 795 bytes Capture Length: 795 bytes [Frame is marked: False] [Protocols in frame: eth:vlan:ip:icmp:data] Ethernet II, Src: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41), Dst: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Destination: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Address: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) Address: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: 802.1Q Virtual LAN (0x8100) 802.1Q Virtual LAN, PRI: 0, CFI: 0, ID: 1000 000. .... .... .... = Priority: 0 ...0 .... .... .... = CFI: 0 .... 0011 1110 1000 = ID: 1000 Type: IP (0x0800) Internet Protocol, Src: 172.20.2.100 (172.20.2.100), Dst: 172.20.2.11 (172.20.2.11) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 777 Identification: 0xaf65 (44901) Flags: 0x02 (Don't Fragment) 0.. = Reserved bit: Not Set .1. = Don't fragment: Set ..0 = More fragments: Not Set Fragment offset: 0 Time to live: 255 Protocol: ICMP (0x01) Header checksum: 0xbd1b [correct] [Good: True] [Bad : False] Source: 172.20.2.100 (172.20.2.100) Destination: 172.20.2.11 (172.20.2.11) Internet Control Message Protocol Type: 8 (Echo (ping) request) Code: 0 () Checksum: 0x704a [correct] Identifier: 0x001c Sequence number: 7430 (0x1d06) Data (749 bytes) 0000 00 00 00 00 14 67 5f aa be ef be ef be ef be ef .....g_......... 0010 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0020 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0030 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0040 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0050 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0060 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0070 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0080 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0090 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0100 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0110 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0120 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0130 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0140 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0150 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0160 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0170 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0180 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0190 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ MultisteLeaf1#
Last Hop DC-1, Leaf-2에 대한 기본 검사
leaf2#show module Mod Ports Module-Type Model Status --- ----- ------------------------------------- --------------------- --------- 1 54 48x10G + 4x40G + 2x100G Ethernet Modu N9K-C92160YC-X active * Mod Sw Hw Slot --- ----------------------- ------ ---- 1 9.2(3) 1.3 NA Mod MAC-Address(es) Serial-Num --- -------------------------------------- ---------- 1 70-79-b3-3e-81-1c to 70-79-b3-3e-81-69 FDO22111H2V Mod Online Diag Status --- ------------------ 1 Pass * this terminal session leaf2#show cdp neighbors Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge S - Switch, H - Host, I - IGMP, r - Repeater, V - VoIP-Phone, D - Remotely-Managed-Device, s - Supports-STP-Dispute Device-ID Local Intrfce Hldtme Capability Platform Port ID Toleaf2 Eth1/23 142 S I WS-C3750X-24S Gig1/0/1 <<<<<<<<<<<<<<< Towards Host-2 switch(SAL2024RRYF) Eth1/47 175 R S I s N9K-C9372PX-E Eth1/4 spine2(SAL1949UELD) Eth1/48 121 R S s N9K-C9396PX Eth1/8 Total entries displayed: 3 leaf2# leaf2#show hardware internal tah interface ethernet1/23 ######################################### IfIndex: 0x1a002c00 DstIndex: 6056 IfType: 26 Asic: 0 <<<<<<<<<<< Asic: 0 AsicPort: 2 SrcId: 4 <<<<<<<<<<< Slice: 0 <<<<<<<<<<< PortOnSlice: 2 <........snipped for brevity...........> leaf2#
leaf2#show system internal ethpm info interface ethernet 1/23 | grep slice IF_STATIC_INFO: port_name=Ethernet1/23,if_index:0x1a002c00,ltl=6056,slot=0, nxos_port=88,dmod=1,dpid=2,unit=0,queue=65535,xbar_unitbmp=0x0,ns_pid=255,slice_num=0,port_on_slice=2,src_id=4 leaf2#
elam을 실행하고 전송된 항목을 볼 수 있는지 확인합니다(패킷 크기, DF 비트, 데이터 패턴 등 더 많은 매개변수가 추가되었는지 기억함).
leaf2#configure terminal leaf2(config)#attach module 1 module-1#debug platform internal tah elam asic 0 module-1(TAH-elam)#trigger init asic 0 in-select 6 out-select 0 use-src-id 4 param values: start asic 0, start slice 0, lu-a2d 1, in-select 6, out-select 0, src_id 4 module-1(TAH-elam-insel6)# start module-1(TAH-elam-insel6)# report Initting block addresses DAVOS ELAM REPORT SUMMARY slot - 1, asic - 0, slice - 0 ============================ Incoming Interface: Eth1/23 Src Idx : 0x59, Src BD : NA Outgoing Interface Info: dmod 1, dpid 35 Dst Idx : 0xbd, Dst BD : 1000 Packet Type: IPv4 Dst MAC address: 00:C8:8B:F9:5F:41 Src MAC address: E0:D1:73:A4:1D:41 .1q Tag0 VLAN: 1000, cos = 0x0 <<<<<<<<<<<<<<<<<<<<< VLAN-ID Dst IPv4 address: 172.20.2.100 Src IPv4 address: 172.20.2.11 Ver = 4, DSCP = 0, Don't Fragment = 1 <<<<<<<<<<<<<<<<<<<<< DF-bit is SET Proto = 1, TTL = 255, More Fragments = 0 Hdr len = 20, Pkt len = 777, Checksum = 0x13dc <<<<<<<<<<<<<<<<<<<<< Pacekt size = 777 L4 Protocol : 1 ICMP type : 0 <<<<<<<<<<<<<<<<<<<<< (Echo (ping) reply) ICMP code : 0 Drop Info: ---------- LUA: LUB: LUC: LUD: Final Drops: vntag: vntag_valid : 0 vntag_vir : 0 vntag_svif : 0 module-1(TAH-elam-insel6)# module-1(TAH-elam-insel6)#exit module-1(TAH-elam)#exit module-1#exit leaf2# leaf2#ethanalyzer local interface inband display-filter "ip.addr==172.20.2.100 && ip.addr==172.20.2.11 && icmp" limit-captured-frames 0 detail Capturing on inband Frame 1 (795 bytes on wire, 795 bytes captured) Arrival Time: May 31, 2020 15:45:55.674558000 [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: 795 bytes Capture Length: 795 bytes [Frame is marked: False] [Protocols in frame: eth:vlan:ip:icmp:data] Ethernet II, Src: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41), Dst: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) Destination: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) Address: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Address: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: 802.1Q Virtual LAN (0x8100) 802.1Q Virtual LAN, PRI: 0, CFI: 0, ID: 1000 000. .... .... .... = Priority: 0 ...0 .... .... .... = CFI: 0 .... 0011 1110 1000 = ID: 1000 Type: IP (0x0800) Internet Protocol, Src: 172.20.2.11 (172.20.2.11), Dst: 172.20.2.100 (172.20.2.100) <<<<<<<<<<<<<<<<<<<<< RETURN TRAFFIC (ICMP RESPONSE) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 777 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< PACKET SIZE IS 777 Identification: 0x8233 (33331) Flags: 0x02 (Don't Fragment) 0.. = Reserved bit: Not Set .1. = Don't fragment: Set <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< DF-BIT IS SET ..0 = More fragments: Not Set Fragment offset: 0 Time to live: 255 Protocol: ICMP (0x01) Header checksum: 0xea4d [correct] [Good: True] [Bad : False] Source: 172.20.2.11 (172.20.2.11) Destination: 172.20.2.100 (172.20.2.100) Internet Control Message Protocol Type: 0 (Echo (ping) reply) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< PING RESPONSE Code: 0 () Checksum: 0xa035 [correct] Identifier: 0x001f Sequence number: 2511 (0x09cf) Data (749 bytes) 0000 00 00 00 00 14 7f 4a db be ef be ef be ef be ef ......J......... <<<<<<<<<<<<<<<<<< you see the data pattern as "beef" 0010 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0020 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0030 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0040 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0050 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0060 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0070 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0080 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0090 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0100 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0110 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0120 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0130 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0140 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0150 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0160 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0170 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0180 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0190 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0200 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0210 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0220 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0230 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0240 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0250 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0260 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0270 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0280 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0290 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02e0 be ef be ef be ef be ef be ef be ef 00 ............. Data: 00000000147F4ADBBEEFBEEFBEEFBEEFBEEFBEEFBEEFBEEF... [Length: 749] Frame 2 (791 bytes on wire, 791 bytes captured) Arrival Time: May 31, 2020 15:45:55.694904000 [Time delta from previous captured frame: 0.020346000 seconds] [Time delta from previous displayed frame: 0.020346000 seconds] [Time since reference or first frame: 0.020346000 seconds] Frame Number: 2 Frame Length: 791 bytes Capture Length: 791 bytes [Frame is marked: False] [Protocols in frame: eth:ip:icmp:data] Ethernet II, Src: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41), Dst: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Destination: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) Address: e0:d1:73:a4:1d:41 (e0:d1:73:a4:1d:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Source: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) Address: 00:c8:8b:f9:5f:41 (00:c8:8b:f9:5f:41) .... ...0 .... .... .... .... = IG bit: Individual address (unicast) .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default) Type: IP (0x0800) Internet Protocol, Src: 172.20.2.100 (172.20.2.100), Dst: 172.20.2.11 (172.20.2.11) Version: 4 Header length: 20 bytes Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00) 0000 00.. = Differentiated Services Codepoint: Default (0x00) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 777 Identification: 0x8237 (33335) Flags: 0x02 (Don't Fragment) 0.. = Reserved bit: Not Set .1. = Don't fragment: Set ..0 = More fragments: Not Set Fragment offset: 0 Time to live: 255 Protocol: ICMP (0x01) Header checksum: 0xea49 [correct] [Good: True] [Bad : False] Source: 172.20.2.100 (172.20.2.100) Destination: 172.20.2.11 (172.20.2.11) Internet Control Message Protocol Type: 8 (Echo (ping) request) Code: 0 () Checksum: 0x980f [correct] Identifier: 0x001f Sequence number: 2515 (0x09d3) Data (749 bytes) 0000 00 00 00 00 14 7f 4a fd be ef be ef be ef be ef ......J......... 0010 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0020 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0030 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0040 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0050 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0060 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0070 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0080 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0090 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 00f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0100 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0110 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0120 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0130 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0140 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0150 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0160 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0170 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0180 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0190 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01e0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 01f0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0200 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0210 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0220 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0230 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0240 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0250 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0260 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0270 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0280 be ef be ef be ef be ef be ef be ef be ef be ef ................ 0290 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02a0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02b0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02c0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02d0 be ef be ef be ef be ef be ef be ef be ef be ef ................ 02e0 be ef be ef be ef be ef be ef be ef 00 ............. Data: 00000000147F4AFDBEEFBEEFBEEFBEEFBEEFBEEFBEEFBEEF... [Length: 749]
개정 이력
| 개정 | 게시 날짜 | 의견 |
|---|---|---|
2.0 |
17-Oct-2022 |
IP 주소 지정 개정 |
1.0 |
07-Jul-2020 |
최초 릴리스 |
피드백