User manual

Release Notes for Catalyst 6500 Series Content Switching Module Software Release 2.2(8)

78-12569-16

Caveats

• CSCdu05559

During heavy traffic conditions in a fault-tolerant configuration, the primary CSM may not be able

to send heartbeat messages to the secondary CSM. This condition causes both the primary and

secondary CSMs to become active, creating a bridge loop in the network.

Workaround: Reboot the primary CSM.

• CSCdu33696

While the CSM is balancing traffic and you configure the CSM with both a DFP agent and a

manager, the following may occur:

–

All the counters in the show ip slb stats command are reset to 0.

–

The show command returns No ICC Response intermittently.

–

Unknown real servers with unknown bind IDs and weights show up.

–

Virtual servers send an RST to all connection requests.

–

CSM performance becomes very slow.

Workaround: Do not configure both a DFP agent and a manager on the CSM while it is balancing

traffic.

• CSCdu38154

Under a heavy FTP connection load you may see warnings about FTP not finding associated

sessions. These messages are benign.

Workaround: None.

• CSCdu46347

If you change the server farm VLAN IP address while the ICMP probe is configured, the ICMP

probe still uses the old IP address instead of the new one. Changing the server farm with ICMP

causes probes to fail and eventually brings the virtual server out of service.

Workaround: Delete the ICMP probe from the server farm configuration, change the VLAN IP

address, and then add the ICMP probe back to the server farm configuration.

Note Multiple server farms may be associated with a VLAN IP address. To determine which server

farms are associated with a VLAN IP address, issue the show ip slb real command, examine the

display, identify the real servers that are in the same network as the VLAN IP address, and note

the server farm associations of those real servers.

• CSCdu54735

If the version of software running on the CSM does not correspond to the version of Cisco IOS

software running on the Catalyst switch, a spurious memory access message may display when the

CSM is inserted into a Catalyst 6500 Series chassis.

Workaround: If the versions of software do not correspond, either the Cisco IOS or the CSM

software must be upgraded for the module to function.