I've finally started to investigate an issue I have with our CSM setup. Several times a day I get the below syslog message from the 6500
10:49:11: %CSM_SLB-6-RSERVERSTATE: Module 4 server state changed: SLB-NETMGT: TCP health probe failed for server
Then a few seconds later
10:49:41: %CSM_SLB-6-RSERVERSTATE: Module 4 server state changed: SLB-NETMGT: TCP health probe re-activated server
I never seems to catch the event in action and can never verify if the real server is indeed failed or if this is only a probe timeout. I have both layer 2 and layer 3 server farms in operation and this problem occurs on all of my server farms a few times a day.
No pattern and I have no other indications of any problems. I have most of the probes set on 1 repeat and 30sec timeout. Increase the probe timeouts perhaps?