Installation guide

65
Release Notes for Catalyst5000 Family Software Release4.x
OL-2306-01
Open and Resolved Caveats in Software Release4.2(2)
• In some cases, when you open a Telnet session to a Catalyst 5000 family switch from a Windows95
PC and then attempt to configure the switch using the configure network command, the Telnet
session hangs.
Workaround: Connect to the switch through the console port and then configure the switch from
the network using the configure network command. (CSCdk30576)
• In some situations, when you configure a four-port Fast EtherChannel bundle and then configure a
two-port bundle using the first two ports in the original bundle, the remaining two ports will not
participate in spanning tree.
Workaround: Turn channeling off on all four ports and then create the two-port Fast EtherChannel
bundle. (CSCdk37901)
• In some cases, when you initiate a switchover from the active supervisor engine in slot1 to the
standby supervisor engine in slot2, the Token Ring module (WS-X5030 and WS-X5031) fails to
come online. The output of the show module command shows the module status as “faulty.”
Workaround: Reset the Token Ring module. (CSCdk30906)
• In some cases, in a Catalyst 5000 family chassis with both a Supervisor Engine III module and a
Token Ring module (WS-X5030 and WS-X5031), the supervisor engine periodically might generate
an MCP exception error that resets the switch. The problem occurs more frequently if the switch is
processing many SNMP queries. (CSCdk34066)
• If two IEEE 802.1Q-capable peers are negotiating a trunk when a spanning tree loop or prolonged
line-rate traffic exists, a port inconsistency error might occur, causing an excessive number of
syslog messages to be sent to the console. (CSCdk29882)
• When upgrading to software release 4.2(1) from a previous release, if you download the software
image file and then hot insert a second supervisor engine before you reset the system, the standby
supervisor engine does not synchronize with the primary. (CSCdk31881)
Resolved Caveats in Software Release4.2(2)
Note For a description of open caveats in software release 4.2(2), see the “Open Caveats in Software
Release4.2(2)” section on page64.
This section describes caveats resolved in software release 4.2(2):
• The 48-port, 10BASE-T Ethernet module (WS-X5012) incorrectly drops valid frames with dribble
bits (extra bits added to frames by some end stations and transceivers). This problem is resolved in
software release4.2(2). (CSCdk32984)
• In a Catalyst 5000 family switch with a Supervisor Engine III and an NFFC, if there is no uplink
module installed in the supervisor engine, MLS might not function correctly.
Workaround: Install an uplink module in the Supervisor Engine III. This problem is resolved in
software release4.2(2). (CSCdk43863)
• In Catalyst 5000 family supervisor engine software release 3.2(2) and later, when the 48-port
10BASE-T Telco module (WS-X5012) detects excessive/late collisions on a port, that port is
automatically disabled. The show port command output shows the state of the disabled port as
“errdisable.”