Installation guide

Release Notes for Catalyst 6000 Family Software Release 5.x 29

Resolved Caveats in Software Release 5.2(2)CSX

• Because of a race condition when 10/100 ports are trunking and channeling, all VLANs are not

added to the spanning tree except the native VLAN. This problem is ﬁxed in software release

5.2(2)CSX. (CSCdm26399)

• When accessing the MSM through the session command, a timeout occurs when uploading an

image from MSM bootﬂash to supervisor engine slot 0 (sup-slot0). This problem does not occur

when connected to the MSM console port. This problem is ﬁxed in software release 5.2(2)CSX.

(CSCdm26984)

• When GMRP is learning a lot of groups the system might experience a reset while transmitting

GMRP packets. This problem is ﬁxed in software release 5.2(2)CSX. (CSCdm27226)

• It takes a long time to process the set module power down command for an MSM with a large

number of VLANs (approximately 100 or more). This problem is ﬁxed in software release

5.2(2)CSX. (CSCdm27592)

• Improved supervisor engine switchover for redundant supervisors. The time during supervisor

failover in which packet forwarding has stopped has been greatly reduced with maintenance

release 5.2(2)CSX. Previous version 5.2(1)CSX failover times were 30 to 60 seconds. With this

maintenance release 5.2(2)CSX, supervisor failover is reduced to 3 to 10 seconds to resume

packet forwarding. Both times are with spanning tree portfast enabled. See conﬁguration

information on spanning tree portfast. This problem is ﬁxed in software release 5.2(2)CSX.

(CSCdm27781)

• When QoS is enabled, a channel is not formed for ports conﬁgured with desirable or on mode

and with different QoS values. But when QoS is disabled, the different QoS-value ports form a

channel in on mode, but do not form a channel in desirable mode.This problem is ﬁxed in

software release 5.2(2)CSX. (CSCdm30231)

• Problem channeling with GVRP. A six-port channel with ISL trunking was formed and GVRP

was enabled on the channel. An attempt was made to add one additional port with ISL trunking

and GVRP enabled to the same admin group of the channel. This failed, as the port failed to

become GVRP enabled at the protocol level. NVRAM saved the GVRP status of the port as

enabled causing an inconsistency between PAgP and the NVRAM conﬁguration. Although the

port channeling parameters look the same between the seventh port and the existing channel, the

seventh port cannot join the channel. Disabling GVRP on the existing channel and the new port

cleans up the inconsistencies between PAgP and NVRAM and the new port can be added to the

channel. This problem is ﬁxed in software release 5.2(2)CSX. (CSCdm32448)

• The supervisor engine might reset after conﬁguring a port channel on the MSM. This problem

might occur if the previous MSM conﬁguration was cleared a few seconds earlier using the clear

conﬁg mod_num command. This problem is ﬁxed in software release 5.2(2)CSX.

(CSCdm33830)

• The spanning tree uplinkfast feature might not converge fast enough or is not converging at all.

This problem is ﬁxed in software release 5.2(2)CSX. (CSCdm26273)

• On some GBICs shipped with the switch, when a port is disabled and then enabled, the link might

be lost. Some GBICs also might lose link after a power-cycle. This problem is ﬁxed in software

release 5.2(2)CSX. (CSCdm33296)

• When ports on the 48-Port 10/100TX Switching modules (WS-X6248-RJ-45 and

WS-X6248-TEL) are disabled the show port ﬂowcontrol command shows that the port’s ﬂow

controls are operationally on. This problem is ﬁxed in software release 5.2(2)CSX.

(CSCdm29087)