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Release Notes for the Catalyst 3750 Switch Cisco IOS Release 12.1(14)EA1

OL-4215-01

Open Caveats

These are the open caveats with possible unexpected activity in this software release:

• “Open Cisco IOS Caveats” section on page 22

• “Open CMS Caveats” section on page 25

Open Cisco IOS Caveats

These are the severity 3 Cisco IOS configuration caveats:

• CSCdz30046

When multicast VLAN registration (MVR) groups are added or deleted, the receiver port that joined

the groups after the addition still receives traffic even after the group is deleted. The correct behavior

is that MVR data traffic to the group should stop flowing to the receiver port immediately after the

no mvr group ip-address global configuration command is entered.

The workaround is to disable MVR by using the no mvr global configuration command and then to

re-enable it by using the mvr command. Add and delete the groups that have problems by using the

mvr group ip-address and the no mvr group ip-address global configuration commands.

• CSCea26207

If the stack master is reloaded immediately after adding multiple VLANs, the new stack master

might fail.

The workaround is to wait a few minutes after adding VLANs before reloading the stack master.

• CSCea75390

When two RSPAN sessions are active at the same time, packets might swap VLAN IDs during

periods of very high traffic. Packets with swapped VLAN IDs can be egressed spanned on VLAN 1.

There is no workaround.

• CSCea84802

While booting up a nine-member switch stack with a large number of SNMP traps enabled, some of

the stack members might not come up fully and become operational. There are two possible

scenarios:

–

The stack member stays in the initializing state. Use the show switch user EXEC command to

detect this condition. Normally a switch joining the switch stack transitions from Initializing

to Ready within 1 minute.

–

The stack member comes up in the ready state, but all ports on the stack member remain in the

linkdown state even though link partners indicate a linkup state.

The workaround is to reboot the whole switch stack using one of these methods:

–

Use the reload privileged EXEC command on the stack master.

–

Power cycle the stack master.

• CSCea90131

Under the these conditions, the Catalyst 3750 might report a false security violation after an 802.1X

supplicant is authenticated and assigned a new VLAN by the RADIUS server:

–

802.1X, port security, and voice VLAN are configured on a stack member port.

–

Maximum number of secure addresses have been learned on the port before it is authenticated.

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Cisco 3520 Guía de instalación Pagina 22

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