User manual

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

78-12569-16

Caveats

–

Multiple routes on the CSM to the same destination are supported, but all such routes need to

go through gateways on the same VLAN. Ensure that all routes to any particular destination go

through the same VLAN. For example, the following configuration is invalid because it is

possible for traffic from a remote source to arrive on both VLAN 10 and VLAN 20:

Router(config)# module csm 4

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

Router(config-slb-vlan-client)# gateway 1.1.1.1

Router(config-module-csm)# vlan 20 client

Router(config-slb-vlan-client)# gateway 2.2.2.2

To make this configuration valid, delete the gateway command from either VLAN 10 or VLAN

20.

Note NOTE: Do not use the gateway command in more than one VLAN.

–

Traffic into the CSM from an IP address must arrive on the same VLAN 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.

• CSCdv00464

Issuing the clear interface gigabit slot/port command for a CSM gigabit port may not clear the

counters.

Workaround: None.

• CSCdv11685

Do not configure different fault-tolerant pairs to use the same FT VLAN.

Workaround: Use a different FT VLAN for each fault-tolerant CSM pair.

• CSCdv29125

In firewall configurations using an HTTP 1.1 redirect virtual server, a connection going through the

firewalls may remain open after a redirect virtual server connection is established.

Workaround: None. This connection closes when it times out.

• CSCdw49073

The CSM does not support creating more than 127 virtual servers with the same virtual IP (VIP)

address, even though the CLI does enable you to configure more than 127 virtual servers. If you use

the CLI to configure more than 127 virtual servers, the 128th and subsequent virtual servers will not

function properly.

Workaround: Do not configure more than 127 virtual servers on the same VIP.

• CSCdw80718

Configuring a large number of client VLANs (each configured with its own gateway) can cause the

switch console to hang and the configuration performance to be extremely slow.

Workaround: Limit the number of client-side gateways configured to a small number (less than 10).