Installation guide

Release Notes for Catalyst5000 Family Software Release4.x

OL-2306-01

Open and Resolved Caveats in Software Release 4.5(12)

This section describes open and resolved caveats in supervisor engine software release4.5(12):

• Open Caveats in Software Release4.5(12), page20

• Resolved Caveats in Software Release4.5(12), page21

Open Caveats in Software Release4.5(12)

Note For a description of caveats resolved in software release4.5(12), see the “Resolved Caveats in

Software Release4.5(12)” section on page21.

This section describes open caveats in software release4.5(12).

• On Catalyst 5500 series switches, Gigabit Ethernet autonegotiation is broken on the Gigabit

Ethernet uplink module (WS-U5534) in supervisor engine software releases 4.5(11), 4.5(12), and

4.5(13). Autonegotiation fails only if the other end of the link is also connected to a WS-U5534

uplink module. There is no problem if the other end of the link is connected to another Gigabit

Ethernet module such as the 3- or 9-port modules.

Turning off autonegotiation to avoid the problem is not recommended as this can lead to

spanning-tree loops if you have a unidirectional link. The only workaround is to connect a WS-U5534

uplink module to a different module (not the WS-U5534 uplink module). (CSCdw21589)

• If you have multiple ATM fabric integration modules (WS-X5165) installed and you have more than

50 LECs configured on each module, a multiple-module software download to the modules can take

an excessively long time to complete. For this reason, we recommend that you download software

images one module at a time (by specifying the module number in the download command).

(CSCdk55355)

• If IGMP snooping or CGMP is disabled while protocol filtering is enabled, Layer 2 multicast

forwarding will be affected when protocol filtering is later disabled. The commands to reproduce

this are:

a. set igmp enable (or set cgmp enable)

b. set protocolfilter enable

c. set igmp disable (or set cgmp disable)

d. set protocolfilter disable

Workaround: Reenable protocol filtering, which will restore multicast traffic forwarding. If you

do not want to reenable protocol filtering, you must reset the switch to resolve the condition.

(CSCdu04672)

• On the Gigabit EtherChannel module (WS-X5410), if a host allowed on one secured port is moved

to another previously unused secured port on the same module, the host cannot connect to the

network on the second port.

Workaround: Disable port security on the first port, move the host to the second port, and then

reenable port security on the first port (if desired). (CSCdk31747)

• After a switchover from the active to the standby supervisor engine, the SPAN destination port

might not function correctly. (CSCdk55360)