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N1K heartbeats lost !!

helenio
Level 1
Level 1

Whent VSM lose connectivity with VEM's (sometimes happends but I don't know why) I got this logs:

2012 Nov  3 07:24:31.363 sv4025-01 %VEM_MGR-2-VEM_MGR_REMOVE_NO_HB: Removing VEM 5 (heartbeats lost)

2012 Nov  3 07:24:31.364 sv4025-01 %VEM_MGR-2-VEM_MGR_REMOVE_NO_HB: Removing VEM 7 (heartbeats lost)

2012 Nov  3 07:24:31.364 sv4025-01 %VEM_MGR-2-VEM_MGR_REMOVE_NO_HB: Removing VEM 9 (heartbeats lost)

2012 Nov  3 07:24:31.364 sv4025-01 %VEM_MGR-2-VEM_MGR_REMOVE_NO_HB: Removing VEM 10 (heartbeats lost)

2012 Nov  3 07:24:31.364 sv4025-01 %VEM_MGR-2-VEM_MGR_REMOVE_NO_HB: Removing VEM 12 (heartbeats lost)

2012 Nov  3 07:24:31.555 sv4025-01 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel47: Ethernet5/2 is down

2012 Nov  3 07:24:31.556 sv4025-01 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel47: first operational port changed from Ethernet5/2 to Ethernet5/11

2012 Nov  3 07:24:31.557 sv4025-01 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel18: Ethernet5/6 is down

2012 Nov  3 07:24:31.558 sv4025-01 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel18: first operational port changed from Ethernet5/6 to Ethernet5/10

2012 Nov  3 07:24:31.559 sv4025-01 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel16: Ethernet5/3 is down

2012 Nov  3 07:24:31.559 sv4025-01 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel16: first operational port changed from Ethernet5/3 to Ethernet5/8

2012 Nov  3 07:24:31.561 sv4025-01 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel40: Ethernet7/3 is down

2012 Nov  3 07:24:31.561 sv4025-01 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel40: first operational port changed from Ethernet7/3 to Ethernet7/8

2012 Nov  3 07:24:31.598 sv4025-01 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel48: Ethernet7/11 is down

2012 Nov  3 07:24:31.600 sv4025-01 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel42: Ethernet7/6 is down

2012 Nov  3 07:24:31.601 sv4025-01 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel42: first operational port changed from Ethernet7/6 to Ethernet7/10

2012 Nov  3 07:24:31.605 sv4025-01 %VIM-5-IF_DETACHED_MODULE_REMOVED: Interface Ethernet5/2 is detached (module removed)

2012 Nov  3 07:24:31.606 sv4025-01 %VIM-5-IF_DETACHED_MODULE_REMOVED: Interface Ethernet5/3 is detached (module removed)

2012 Nov  3 07:24:31.606 sv4025-01 %VIM-5-IF_DETACHED_MODULE_REMOVED: Interface Ethernet5/6 is detached (module removed)

2012 Nov  3 07:24:31.606 sv4025-01 %VIM-5-IF_DETACHED_MODULE_REMOVED: Interface Ethernet5/8 is detached (module removed)

2012 Nov  3 07:24:31.606 sv4025-01 %VIM-5-IF_DETACHED_MODULE_REMOVED: Interface Ethernet5/10 is detached (module removed)

I'm happy about "Removing VEM" logs but why I got also Interfaces down logs. this drive to missunderstanding information because actually interfaces are not down is the connectivity between VSM and VEM that were lost.

There is a way to avoid this behavior ?

1 Reply 1

adedayo_ariyo
Level 1
Level 1

if  you  lose  connectivity between  the  VSM and  VEM  following  a  reboot   of  the  ESX  server  host, it may be caused by a reset of the MTU to its default on the host.