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New Member

CSM HeartBeat issue

We have two 6509s (12.2(17b)SXA) with WS-X6066-SLB-APC CSM modules running version 3.2(1)

Basically, what happened was the two modules sort of were not able to see each others so the standby one became active causing a collision.

Switch1 configs:

module ContentSwitchingModule 9

variable AGGREGATE_BACKUP_SF_STATE_TO_VS 1

!

ft group 10 vlan 53

priority 10

failover 3

preempt

Switch2 configs:

module ContentSwitchingModule 9

variable AGGREGATE_BACKUP_SF_STATE_TO_VS 1

!

ft group 10 vlan 53

priority 9

failover 3

preempt

Switch1#sh module contentSwitchingModule 9 ft detail

FT group 10, vlan 53

This box is active

priority 10, heartbeat 1, failover 3, preemption is on

total buffer count 6213, illegal state transitions 168448

receive buffers not committed 0, send buffers not committed 0

updates: sent 4, received 0, committed 0

coup msgs: sent 260, received 0

election msgs: sent 0, received 108

heartbeat msgs: sent 50503811, received 261

relinquish msgs: sent 0, received 131

conn replicate msgs: sent 0, received 0

conn refresh msgs: sent 0, received 0

conn reset msgs: sent 0, received 0

conn redundancy errors: msgs lost 0, msgs rejected 0

packets: total received 5384656, total dropped 0, duplicates 0

checksum failed 0, dumped 0, buffer unavailable 0

number of state updates in last 10 transfers:

0 0 0 0 0 0 0 0 0 0

Logs for Switch1

Jan 14 16:21:39.252: %CSM_SLB-4-REDUNDANCY_WARN: Module 9 FT warning: Active/Active Collision staying active

Jan 14 16:21:39.256: %CSM_SLB-4-TOPOLOGY: Module 9 warning: IP address conflict: ARP frame from 10.192.200.10 with MAC 00:0f:90:20:5d:93 received on VLAN 210

Switch2#sh mod contentSwitchingModule 9 ft detail

FT group 10, vlan 53

This box is in standby state

priority 9, heartbeat 1, failover 3, preemption is on

total buffer count 6213, illegal state transitions 0

receive buffers not committed 0, send buffers not committed 0

updates: sent 4, received 0, committed 0

coup msgs: sent 0, received 194

election msgs: sent 0, received 0

heartbeat msgs: sent 194, received 37692214

relinquish msgs: sent 97, received 0

conn replicate msgs: sent 0, received 0

conn refresh msgs: sent 0, received 0

conn reset msgs: sent 0, received 0

conn redundancy errors: msgs lost 0, msgs rejected 0

packets: total received 2016, total dropped 0, duplicates 0

checksum failed 0, dumped 0, buffer unavailable 0

number of state updates in last 10 transfers:

0 0 0 0 0 0 0 0 0 0

Logs for switch2

Jan 14 16:21:39.261: %CSM_SLB-6-REDUNDANCY_INFO: Module 9 FT info: State Transition Standby -> Active

Jan 14 16:21:39.265: %CSM_SLB-4-REDUNDANCY_WARN: Module 9 FT warning: Standby is Active now (no heartbeat from active unit)

Jan 14 16:21:39.269: %CSM_SLB-6-REDUNDANCY_INFO: Module 9 FT info: State Transition Active -> Standby

Is there any reason that will force the loss of heartbeats between the two switches?

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: CSM HeartBeat issue

you are running 3.2.1 which is very old.

You should consider an upgrade to a more recent version.

One possible explanation for your problem is this ddts :

CSCsk43903: CSM goes active-active over 828 days

Gilles.

2 REPLIES
Silver

Re: CSM HeartBeat issue

First try rebooting the active/ Standby module to check if this fixes the prolem. Upgrading the standby has helped me fix the issue.

Cisco Employee

Re: CSM HeartBeat issue

you are running 3.2.1 which is very old.

You should consider an upgrade to a more recent version.

One possible explanation for your problem is this ddts :

CSCsk43903: CSM goes active-active over 828 days

Gilles.

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