Introducción
Este documento describe el seguimiento de objetos vPC, por qué se utiliza y cómo funciona.
Seguimiento de objetos vPC
Diagrama de la red
Este es el diagrama de red utilizado para esta demostración:
El enlace de par vPC es Port-channel 1. Ethernet 5/1 es el enlace de keepalive de peer vPC. Hay dos routers de núcleo que están conectados a través de los links E3/30 y E3/4 en cada caja N7K. N5KA y N5KB simulan switches L2 vPC conectados en vPC 100 y vPC 101. N7KA es el dispositivo principal vPC.
Comandos show de línea de base
N7KA:
N7KA-vdc2# show run vpc
!Command: show running-config vpc
!Time: Thu Sep 26 19:51:57 2013
version 6.1(4)
feature vpc
vpc domain 102
peer-keepalive destination 1.1.1.2 source 1.1.1.1 vrf vpc-keepalive
peer-gateway
track 1
auto-recovery
interface port-channel1
vpc peer-link
interface port-channel100
vpc 100
interface port-channel101
vpc 101
N7KA-vdc2# show run track
!Command: show running-config track
!Time: Thu Sep 26 19:51:59 2013
version 6.1(4)
track 1 list boolean or
object 2
object 3
object 4
track 2 interface port-channel1 line-protocol
track 3 interface Ethernet3/3 line-protocol
track 4 interface Ethernet3/4 line-protocol
N7KA-vdc2# show vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 102
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 2
Track object : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up 1
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- ------ ------------
100 Po100 up success success 1
101 Po101 up success success 1
N7KA-vdc2# show track
Track 1
List Boolean or
Boolean or is UP
2 changes, last change 23:24:08
Track List Members:
object 4 UP
object 3 UP
object 2 UP
Tracked by:
vPCM 102
Track 2
Interface port-channel1 Line Protocol
Line Protocol is UP
1 changes, last change 23:26:59
Tracked by:
Track List 1
Track 3
Interface Ethernet3/3 Line Protocol
Line Protocol is UP
3 changes, last change 23:26:50
Tracked by:
Track List 1
Track 4
Interface Ethernet3/4 Line Protocol
Line Protocol is UP
3 changes, last change 23:26:48
Tracked by:
Track List 1
N7KA-vdc2#
N7KB:
N7KB-vdc2# show run vpc
!Command: show running-config vpc
!Time: Thu Sep 26 19:53:17 2013
version 6.1(4)
feature vpc
vpc domain 102
peer-keepalive destination 1.1.1.1 source 1.1.1.2 vrf vpc-keepalive
peer-gateway
track 1
auto-recovery
interface port-channel1
vpc peer-link
interface port-channel100
vpc 100
interface port-channel101
vpc 101
N7KB-vdc2# show run track
!Command: show running-config track
!Time: Thu Sep 26 19:53:20 2013
version 6.1(4)
track 1 list boolean or
object 2
object 3
object 4
track 2 interface port-channel1 line-protocol
track 3 interface Ethernet3/3 line-protocol
track 4 interface Ethernet3/4 line-protocol
N7KB-vdc2# show vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 102
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary
Number of vPCs configured : 2
Track object : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up 1
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- ------ ------------
100 Po100 up success success 1
101 Po101 up success success 1
N7KB-vdc2# show track
Track 1
List Boolean or
Boolean or is UP
2 changes, last change 23:25:51
Track List Members:
object 4 UP
object 3 UP
object 2 UP
Tracked by:
vPCM 102
Track 2
Interface port-channel1 Line Protocol
Line Protocol is UP
1 changes, last change 23:29:09
Tracked by:
Track List 1
Track 3
Interface Ethernet3/3 Line Protocol
Line Protocol is UP
3 changes, last change 23:28:55
Tracked by:
Track List 1
Track 4
Interface Ethernet3/4 Line Protocol
Line Protocol is UP
3 changes, last change 23:28:56
Tracked by:
Track List 1
N7KB-vdc2#
El seguimiento de objetos vPC se utiliza en un escenario como este. Tiene un módulo M132 utilizado para el enlace de par vPC así como los enlaces ascendentes L3 al núcleo. En el caso de que pierda el módulo M132 debido a una falla de hardware, perdería el enlace de par vPC así como los enlaces ascendentes L3. Si esto sucediera en el cuadro secundario vPC (N7KB), esto no sería un problema ya que el peer primario operativo se haría cargo de suspender los canales de puerto vPC y las interfaces Vlan en el secundario operativo. El problema se produce en el caso de una falla de hardware en el dispositivo principal operativo (N7KA). Si no utilizó el seguimiento de objetos, suspenderíamos todos los canales de puerto vPC en N7KB, así como las interfaces Vlan. El link de peer también estaría inactivo. En esta situación, no dispondría de una forma de enrutar el tráfico principal a nuestras vlan vPC.
El seguimiento de objetos consigue solucionar esto mediante la caída de vPC en el dispositivo primario operativo para que no entremos en este escenario en el que desactivamos las interfaces de VLAN y los canales de puerto vPC en la caja que tiene los restantes enlaces ascendentes al núcleo.
Aquí puede ver los mensajes de keepalive del par vPC usando ethanalyzer:
N7KA# ethanalyzer local interface inband capture-filter "host 1.1.1.1 and host 1.1.1.2" limit-captured-frames 4 Capturing on inband 2013-09-26 20:01:09.629309 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:01:09.954909 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:01:10.639097 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:01:10.954944 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 D estination port: 3200 4 packets captured N7KA# N7KB# ethanalyzer local interface inband capture-filter "host 1.1.1.1 and host 1.1.1.2" limit-captured-frames 4 Capturing on inband 2013-09-26 20:00:22.606593 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:00:22.922517 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:00:23.616427 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 D estination port: 3200 2013-09-26 20:00:23.922557 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 D estination port: 3200 4 packets captured N7KB#
Ahora simula la falla del módulo 3 en N7KA al apagar el módulo:
N7KA# conf t Enter configuration commands, one per line. End with CNTL/Z. N7KA(config)# poweroff mod 3 N7KA(config)# end N7KA# 2013 Sep 26 20:03:25 N7KA %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface
Registros:
N7KA:
2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_INITIALIZING: Interface port-channel1 is down (Initializing) 2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_MODULE_REMOVED: Interface Ethernet3/3 is down (module removed) 2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_MODULE_REMOVED: Interface Ethernet3/4 is down (module removed)
2013 Sep 26 20:03:28 N7KA-vdc2 %VPC-2-TRACK_INTFS_DOWN: In domain 102, vPC tracked interfaces down, suspending all vPCs and keep-alive
2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_NONE: Interface port-channel101 is down (None) 2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_NONE: Interface port-channel100 is down (None)
2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel101: Ethernet4/7 is down 2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel100: Ethernet4/6 is down
2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel101: first operational port changed from Ethernet4/7 to none 2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel100: first operational port changed from Ethernet4/6 to none
2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1: Ethernet3/1 is down 2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1: Ethernet3/2 is down
2013 Sep 26 20:03:28 N7KA-vdc2 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel1: first operational port changed from Ethernet3/1 to none 2013 Sep 26 20:03:28 N7KA-vdc2 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel1 is down (No operational members)
N7KB: 2013 Sep 26 20:02:39 N7KB-vdc2 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel1: first operational port changed from Ethernet3/1 to none 2013 Sep 26 20:02:40 N7KB-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1: Ethernet3/2 is down 2013 Sep 26 20:02:40 N7KB-vdc2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet3/2 is down (Link failure)
2013 Sep 26 20:02:45 N7KB-vdc2 %VPC-2-PEER_KEEP_ALIVE_RECV_FAIL: In domain 102, VPC peer keep-alive receive has failed
2013 Sep 26 20:02:45 N7KB-vdc2 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel1 is down (No operational members)
2013 Sep 26 20:02:45 N7KB-vdc2 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel1: Ethernet3/1 is down 2013 Sep 26 20:02:45 N7KB-vdc2 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet3/1 is down (Link failure) 2013 Sep 26 20:02:45 N7KB-vdc2 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel1 is down (No operational members)
Ahora se queda en este estado. N7KA es el par principal vPC, pero deja de enviar mensajes de señal de mantenimiento de par vPC a N7KB para que N7KB no se suspenda. N7KB es el único sistema que tiene enlaces ascendentes.
Salida de Ethanalyzer desde N7KA:
(Observe que después de TRACK_INTFS_DOWN syslog ya no enviamos señales de mantenimiento de pares a N7KB, sólo las recibimos de N7KB que es 1.1.1.2)
2013-09-26 20:03:23.684887 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:23.685766 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
2013-09-26 20:03:24.684863 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:24.685580 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013 Sep 26 20:03:25 N7KA-vdc2 %$ VDC-2 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013 Sep 26 20:03:25 N7KA %$ VDC-1 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013-09-26 20:03:25.684869 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:25.685771 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
2013-09-26 20:03:26.684835 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:26.685716 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
2013-09-26 20:03:27.690661 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:27.691367 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013 Sep 26 20:03:28 N7KA-vdc2 %$ VDC-2 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD) 2013 Sep 26 20:03:28 N7KA %$ VDC-1 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD) 2013 Sep 26 20:03:28 N7KA-vdc2 %$ VDC-2 %$ %VPC-2-TRACK_INTFS_DOWN: In domain 102, vPC tracked interfaces down, suspending all vPCs and keep-alive 2013-09-26 20:03:28.700594 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:29.700538 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:30.700603 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:31.710665 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:32.720601 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:33.715295 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:34.713112 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:03:35.713177 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
Salida de Ethanalyzer a partir de N7KB:
2013-09-26 20:02:36.651007 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:36.651534 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:37.651053 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:37.651644 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:38.650967 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:38.651579 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:39.656523 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:39.657500 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 (Here we stop receiving keepalive messages from N7KA or 1.1.1.1): 2013-09-26 20:02:40.666531 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:41.666442 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:42.666479 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:43.676461 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:44.686478 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013 Sep 26 20:02:45 N7KB-vdc2 %$ VDC-2 %$ %VPC-2-PEER_KEEP_ALIVE_RECV_FAIL: In domain 102, VPC peer keep-alive receive has failed 2013-09-26 20:02:45.681050 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:46.678911 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:47.678918 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:02:48.678961 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
N7KA:
N7KA-vdc2# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 102
Peer status : peer link is down
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 2
Track object : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 down -
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- ------ ------------
100 Po100 down success success -
101 Po101 down success success -
N7KA-vdc2# show track
Track 1
List Boolean or
Boolean or is DOWN
3 changes, last change 00:20:50
Track List Members:
object 4 DOWN
object 3 DOWN
object 2 DOWN
Tracked by:
vPCM 102
Track 2
Interface port-channel1 Line Protocol
Line Protocol is DOWN
2 changes, last change 00:20:50
Tracked by:
Track List 1
Track 3
Interface Ethernet3/3 Line Protocol
Line Protocol is DOWN
4 changes, last change 00:20:50
Tracked by:
Track List 1
Track 4
Interface Ethernet3/4 Line Protocol
Line Protocol is DOWN
4 changes, last change 00:20:50
Tracked by:
Track List 1
N7KA-vdc2#
N7KB:
N7KB-vdc2# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 102
Peer status : peer link is down
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary, operational primary
Number of vPCs configured : 2
Track object : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 down -
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- ------ ------------
100 Po100 up success success 1
101 Po101 up success success 1
N7KB-vdc2# sh track
Track 1
List Boolean or
Boolean or is UP
2 changes, last change 23:57:10
Track List Members:
object 4 DOWN
object 3 UP
object 2 DOWN
Tracked by:
vPCM 102
Track 2
Interface port-channel1 Line Protocol
Line Protocol is DOWN
2 changes, last change 00:22:04
Tracked by:
Track List 1
Track 3
Interface Ethernet3/3 Line Protocol
Line Protocol is UP
3 changes, last change 1d00h
Tracked by:
Track List 1
Track 4
Interface Ethernet3/4 Line Protocol
Line Protocol is DOWN
4 changes, last change 00:22:04
Tracked by:
Track List 1
N7KB-vdc2#
Ahora puede restaurar la configuración:
N7KA# conf t Enter configuration commands, one per line. End with CNTL/Z. N7KA(config)# no poweroff mod 3 N7KA(config)# end N7KA# 2013 Sep 26 20:26:53 N7KA %PLATFORM-2-PFM_MODULE_POWER_ON: Manual power-on of Module 3 from Command Line Interface 2013 Sep 26 20:26:56 N7KA %PLATFORM-2-MOD_DETECT: Module 3 detected (Serial number JAF1703ALTD) Module-Type 10 Gbps Ethernet XL Module Model N7K-M132XP-12L 2013 Sep 26 20:26:56 N7KA %PLATFORM-2-MOD_PWRUP: Module 3 powered up (Serial number JAF1703ALTD) 2013 Sep 26 20:26:56 N7KA %PLATFORM-5-MOD_STATUS: Module 3 current-status is MOD_STATUS_POWERED_UP
N7KA:
N7KA-vdc2# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 102
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary, operational secondary
Number of vPCs configured : 2
Track object : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up 1
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- ------ ------------
100 Po100 up success success 1
101 Po101 up success success 1
N7KA-vdc2# sh track
Track 1
List Boolean or
Boolean or is UP
4 changes, last change 00:01:44
Track List Members:
object 4 UP
object 3 UP
object 2 UP
Tracked by:
vPCM 102
Track 2
Interface port-channel1 Line Protocol
Line Protocol is UP
3 changes, last change 00:01:40
Tracked by:
Track List 1
Track 3
Interface Ethernet3/3 Line Protocol
Line Protocol is UP
5 changes, last change 00:01:43
Tracked by:
Track List 1
Track 4
Interface Ethernet3/4 Line Protocol
Line Protocol is UP
5 changes, last change 00:01:44
Tracked by:
Track List 1
N7KA-vdc2#
N7KB:
N7KB-vdc2# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 102
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary, operational primary
Number of vPCs configured : 2
Track object : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up 1
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- ------ ------------
100 Po100 up success success 1
101 Po101 up success success 1
N7KB-vdc2# sh track
Track 1
List Boolean or
Boolean or is UP
2 changes, last change 1d00h
Track List Members:
object 4 UP
object 3 UP
object 2 UP
Tracked by:
vPCM 102
Track 2
Interface port-channel1 Line Protocol
Line Protocol is UP
3 changes, last change 00:02:07
Tracked by:
Track List 1
Track 3
Interface Ethernet3/3 Line Protocol
Line Protocol is UP
3 changes, last change 1d00h
Tracked by:
Track List 1
Track 4
Interface Ethernet3/4 Line Protocol
Line Protocol is UP
5 changes, last change 00:02:09
Tracked by:
Track List 1
N7KB-vdc2#
Detalles de la falla de keepalive de vPC Peer:
Vuelva a ejecutar la prueba para ver lo que sucede con el link de keepalive de peer.
Envíe las señales de mantenimiento bidireccionalmente: actualmente todo está activo y en funcionamiento:
2013-09-26 20:32:12.532319 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:12.533083 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
2013-09-26 20:32:13.532485 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:13.533147 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
Ahora cierre de nuevo el módulo 3 M132 en N7KA:
2013 Sep 26 20:32:14 N7KA %$ VDC-1 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013 Sep 26 20:32:14 N7KA-vdc3 %$ VDC-3 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013 Sep 26 20:32:14 N7KA-vdc2 %$ VDC-2 %$ %PLATFORM-2-PFM_MODULE_POWER_OFF: Manual power-off of Module 3 from Command Line Interface 2013-09-26 20:32:14.532364 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:14.533217 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:15.532453 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:15.533158 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:16.532452 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:16.536224 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013 Sep 26 20:32:17 N7KA %$ VDC-1 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD) 2013 Sep 26 20:32:17 N7KA-vdc3 %$ VDC-3 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD) 2013 Sep 26 20:32:16 N7KA-vdc2 %$ VDC-2 %$ %VPC-2-TRACK_INTFS_DOWN: In domain 102, vPC tracked interfaces down, suspending all vPCs and keep-alive 2013 Sep 26 20:32:17 N7KA-vdc2 %$ VDC-2 %$ %PLATFORM-2-MOD_PWRDN: Module 3 powered down (Serial number JAF1703ALTD)
Ahora verá que sólo N7KB (1.1.1.2) está enviando los mensajes de señal de mantenimiento a N7KA (1.1.1.1):
2013-09-26 20:32:17.549161 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:18.549352 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:19.549294 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:20.549358 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:21.549303 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:32:22.549991 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
Aquí puede ver el estado en N7KB mostrando que el keepalive del par ha fallado:
N7KB-vdc2# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 102
Peer status : peer link is down
vPC keep-alive status : peer is not reachable through peer-keepalive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary, operational primary
Number of vPCs configured : 2
Track object : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 down -
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- ------ ------------
100 Po100 up success success 1
101 Po101 up success success 1
N7KB-vdc2#
Ahora comienza a recibir mensajes de señal de mantenimiento de par de N7KA de nuevo después de un breve período (90 segundos):
<snip> 2013-09-26 20:33:42.630255 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:43.630199 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:44.630263 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:45.640201 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:46.650262 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:47.652445 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:47.660318 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:48.652768 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:48.653347 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:49.652409 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:49.652705 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:50.652423 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:50.652773 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:51.652401 1.1.1.1 -> 1.1.1.2 UDP Source port: 3200 Destination port: 3200 2013-09-26 20:33:51.652839 1.1.1.2 -> 1.1.1.1 UDP Source port: 3200 Destination port: 3200
A continuación, verá el estado más reciente en N7KB (que muestra que el par está vivo):
N7KB-vdc2# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 102
Peer status : peer link is down
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary, operational primary
Number of vPCs configured : 2
Track object : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 down -
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- ------ ------------
100 Po100 up success success 1
101 Po101 up success success 1
N7KB-vdc2#