Installation guide

Release Notes for Catalyst5000 Family Software Release4.x

OL-2306-01

Open and Resolved Caveats in Software Release 4.3(1)

• In certain situations, attempts to create or modify a VLAN using SNMP fail.

Workaround: Create or modify the VLAN from the CLI. (CSCdk01511)

Note CSCdk01511 has not been seen in later releases.

• In some cases, if you change the VLAN assignment of ports in a Fast EtherChannel, some ports are

placed in the errdisable state and the channel is not renegotiated. The correct behavior is that the

channel is torn down and renegotiated. (CSCdk32807)

• In some cases, after a switchover from the active to the standby supervisor engine, the SPAN

destination port might not function correctly. (CSCdk55360)

• In a network with a large number of Token Ring ports assigned to different TrCRFs, spanning tree

might not converge correctly, causing network loops.

Workaround: Increase the IBM STP maxage timer and forward delay timer to allow spanning tree

to converge. Another workaround is reduce the number of Token Ring ports in a single Catalyst

5000 family switch. (CSCdk63967)

• With Multilayer Switching (MLS) enabled on a Catalyst5000 family switch with an NFFC and one

or more Token Ring modules (WS-X5030 or WS-X5031), after booting the switch you might see

error messages similar to the following as a result of high CPU utilization by MLS:

1/11/1998,13:02:04:MLS-4:Too many moves, stop MLS for 5 sec!(60000000)

11/11/1998,13:04:12:MLS-4:Resume MLS after detecting too many moves

Workaround: Di sable MLS on the switch. (CSCdk63976)

• In some cases, multiple Catalyst5000 family switches connected through ISL trunk ports might all

report that they are the designated root for the default TrBRF (VLAN1005). (CSCdk63476)

• After a switchover from the active to the standby supervisor engine, any Token Ring modules

(WS-X5030 or WS-X5031) installed in the chassis will reset, resulting in a 3- to 5-minute

interruption for users attached to the modules. (CSCdk63991)

• If you reset a Catalyst5000 family switch with a Supervisor Engine II module when the in-band

(sc0) interface is assigned to a Token Ring VLAN, attempts to connect to the switch using IP (such

as a Telnet connection) fail.

Workaround: Connect to the switch through the console port and reconfigure the sc0 interface

using the set interface command. (CSCdk66002)

• When a Catalyst 5000 family switch learns a MAC address on a port of the Gigabit EtherChannel

module (WS-X5410), an ATM LANE module installed in the same chassis might be unable to

respond to LE-ARP requests for that MAC address. As a result, all traffic for this MAC address is

forwarded through the BUS rather than over a data direct VC, resulting in poor network

performance. (CSCdk67909)

• If you attempt to configure a port filter with a protocol or MAC address of 0 on the Catalyst5000

family Token Ring modules (WS-X5030 and WS-X5031), the filter is not set on the module but

appears multiple times in the output of the show config command. These configuration file entries

cannot be removed using the clear port filter command.

Workaround: Clear the configuration, reset the switch, and restore the original configuration.

(CSCdk55091)