Symptom
Crash produces IOSd core files
Conditions
CCK feature enabled. the chances for crash are more. Otherwise as well crash can occur.
Workaround
CCK feature is disabled by default in v17.9.4 onwards.
Still, we can disable it to avoid future crashes:
sh run all | i diagnostic
diagnostic monitor interval switch 1 test TestConsistencyCheckL2m 02:00:00 0 0 cardindex 7
diagnostic monitor threshold switch 1 test TestConsistencyCheckL2m failure count 1 cardindex 7
diagnostic monitor switch 1 test TestConsistencyCheckL2m cardindex 7
Then, go to global config mode and disable the CCK:
conf t
no diagnostic monitor switch 1 test TestConsistencyCheckL2m cardindex 7
