Cisco Gigabit Ethernet Switch Module for HPBladeSystem p-Class Release Notes, CiscoIOSRelease12.2(35)SE and later

Cisco Gigabit Ethernet Switch Module for HP BladeSystem p-Class Release Notes, Cisco IOS Release 12.2(35)SE and later

459515-002

Open Caveats

• CSCsd78044

When IGMP snooping is enabled and an EtherChannel member interface goes down, the switch

might stop forwarding multicast traffic on the EtherChannel. This problem occurs when the

EtherChannel interface is a member of a multicast group that is not directly connected (that is, the

multicast group that does not have the C flag set in the show ip mroute privileged EXEC command

output).

The workaround is to either disable IGMP snooping, or to use the clear ip mroute user EXEC

command to refresh all the routes.

• CSCsd85770

When you apply the mls qos trust dscp global configuration command to a port, this error message

might appear.

Master sets trust failed, sets to untrust modetrust type update

failed on ifc GigabitEthernetx/x

Switch(config-if)#Tcam write failed trust dscp

%QOSMGR-4-COMMAND_FAILURE: Execution of slave:HQM_IDBTRUST_CMD

command failed on GigabitEthernetx/x

The workaround is to apply the sdm prefer qos global configuration command before you enter the

mls qos trust dscp global configuration command.

• CSCsd86177

When you remove and reconfigure a loopback interface, it does not appear in the ifTable.

The workaround is to reload the switch.

• CSCse03859

If the switch is in VTP server mode and VLANs with IDs greater than 255 (256 and above) are

created, DHCP snooping does not work properly on these VLANs.

The workaround is to put the switch in VTP transparent mode before creating the VLANs.

• CSCse06827

When dynamic ARP inspection is configured on a VLAN, and the ARP traffic on a port in the VLAN

is within the configured rate limit, the port might go into an error-disabled state.

The workaround is to configure the burst interval to more than 1 second.

• CSCse14774

If a switch is connected to a third-party router through an EtherChannel and the EtherChannel is

running in Link Aggregation Control Protocol (LACP) mode, the interfaces in the EtherChannel

might go down after you enter the switchport trunk native vlan vlan-id interface configuration

command to change the native VLAN from VLAN 1 (the default) to a different VLAN ID.

These are the workarounds. You only need to do one of these:

–

Do not change the native VLAN ID from the default setting of VLAN 1.

–

If you need to change the native VLAN ID to a VLAN other than VLAN 1, do not run the

EtherChannel in LACP mode, and change the mode to On by using the channel-group

channel-group-number mode on interface configuration command.