User manual

13
Release Notes for Catalyst 6500 Series Content Switching Module Software Release 2.2(8)
78-12569-16
Caveats
• CSCdy29182
When multiple CSM users perform a do copy xx running-config from a CSM submode in
Cisco IOS, the next command entered will fail with the message “% CSM parser state not found.”
This problem occurs only if the file copied to running-config contains at least one CSM command.
When the CSM command in the file copied to running-config is run, it overwrites the current CSM
configuration parser state.
Workaround: Do not perform a do copy xx running-config operation from a CSM configuration
submode. You can also exit out to the top level configuration submode and then re-enter the desired
CSM configuration submode.
• CSCdy26940
Beginning with Cisco IOS Release 12.1(13)E, it is possible for multiple users to simultaneously
issue configuration commands for the same CSM. When you use this capability, it is possible to
corrupt the configuration. In particular, if one user changes the “type” of an object while another
user is simultaneously configuring that same object, the configuration will be corrupted. For
example, if a user changes probe “FOO” from type “script” to type “http” while another is
configuring probe “FOO,” the configuration will be corrupted.
Workaround: Ensure that multiple users do not simultaneously modify the CSM configuration in
such an inconsistent way.
• CSCdy00143
With Multiple Spanning Tree (MST) or Rapid PVST (RPVST) enabled, CSM failover time is
excessive. When MST or RPVST is enabled and the spanning tree protocol is configured on a CSM
client or server VLAN, it may take up to one minute for traffic flow through a CSM to resume after
a CSM failover. The delay is caused by reconvergence of the Spanning Tree Protocol (STP).
Workaround: Ensure that MST and RPVST are not enabled on the Catalyst 6500 series switch
containing the CSM, or ensure that the spanning tree protocol is disabled on the CSM client and
server VLANs.
• CSCdx73636
Some FTP connections may not replicate. An FTP connection through an active CSM is not
replicated if no data channel has been setup for the connection. Data channels are typically
established when the client uses a get or put command on a file or performs a directory listing.
Workaround: None.
• CSCdw84018
CSM software release 3.1(2) does not support the Real Time Streaming Protocol (RTSP) and User
Datagram Protocol (UDP) streaming when a client NAT is enabled. If this configuration is set up,
the server attempts to open a UDP connection. Some RTSP clients then fall back to interleaved mode
(inline TCP). This mode works in the application software, although the connection is sent to
fastpath.
Workaround: None
• CSCdw49073
The CSM does not support creating more than 127 virtual servers with the same virtual IP (VIP)
address, even though the CLI does allow 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.