User manual

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

78-12569-16

Caveats

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Traffic into the CSM from an IP address must arrive on the same VLAN that the CSM uses to

send to that IP address. Ensure that all traffic received by the CSM from a specific destination

address arrives on the same VLAN that the CSM uses to reach that destination if the CSM is

configured with a route as follows:

Router(config)# module csm 4

Router(config-module-csm)# vlan 10 client

Router(config-slb-vlan-client)# route 10.0.0.0 255.255.255.0 gateway 1.1.1.1

For load balancing to function properly, all traffic arriving from the 10.0.0.0/24 subnet must

reach the CSM through VLAN 10.

Resolved Caveats in Release 2.2(7)

This section describes caveats that have been resolved in CSM software release 2.2(7).

• CSCdz48294

When a VLAN interface is removed from the CSM configuration, the learned ARP entries

associated with this subnet are still in the ARP table of CSM.

Workaround: None.

• CSCdz47531

In the 2.2(7) release, the CSM now supports non-standard HTTP requests from the Wireless

Application Protocol (WAP) devices.

Workaround: None.

• CSCdz38938

When one of the firewalls fails ARP request, the ICMP health probe to other servers or firewalls will

occasionally drop the ICMP reply. If the number of probe attempts is small, other ICMP health

probes could incorrectly be marked as failed.

Workaround: Increase the probe retries count, and increase the probe failed interval for ICMP.

• CSCdz35004

The CSM receive engine was limiting the ICMP probe rate to 60 probes per second. With the fix in

the 2.2(7) release, the maximum ICMP health probe rate is at 600 probes per second.

Workaround: None.

• CSCdz34419

When you configure a virtual server with a wildcard 0.0.0.0 address, and you use the clear module

csm id conns vserver vs-name command, the command clears all current opened connections in the

CSM.

Workaround: None.

• CSCdz24949

The clear module csm x arp command does not clear the learned ARP entries.

Workaround: Any old learned ARP entries are removed in the next ARP probing cycle.

• CSCdy04751

Sometimes the CSM cannot get the fault tolerance statistics from the hardware. In this case, the

show module csm x ft command always returns an error. However, the fault tolerance function is

still working.