Installation guide

Release Notes for Catalyst5000 Family Software Release4.x

OL-2306-01

Open Caveats in Software Release4.1(1)

Resolved Caveats in Software Release4.1(2)

Note For a description of open caveats in software release 4.1(2), see the “Open Caveats in Software

Release4.1(2)” section on page72.

This section describes caveats resolved in software release 4.1(2):

If you attempt to upgrade the software on a Catalyst 5500 chassis with redundant Supervisor EngineIIIs

from software release 3.X to software release 4.1(1), the image loads properly but the Flash

synchronization between the active and standby supervisor engine is unsuccessful due to a checksum

failure. This problem is resolved in Catalyst 5000 family supervisor engine software release 4.1(2).

(CSCdk18762)

Open Caveats in Software Release4.1(1)

This section describes open caveats in software release4.1(1).

Caution We do not recommend using the Token Ring modules (WS-X5030 and WS-X5031) with supervisor

engine release 4.1(1).

• If you have redundant Fast EtherChannel links and redundant Gigabit Ethernet links, and UplinkFast

is enabled, Fast EtherChannel may be incorrectly chosen as the primary path.

Workaround: Manually adjust the port costs. (CSCdk02273, CSCdk10855)

• On a Catalyst 5000 family switch with a Supervisor Engine III, if the “System Uptime” (shown in

the output of the show version command) reaches 49days, 17hours, and 3minutes (2

seconds),

some switching modules might reset. (CSCdk32229)

Usage Guidelines and Restrictions

This section describes features, warnings, and cautions about using Catalyst5000 family supervisor

engine software release4.x.

• Ensure that the total number of logical ports across all instances of spanning tree for different

VLANs does not exceed the maximum number supported for each supervisor engine type and

memory configuration. Use this formula to compute the total number of logical ports on the switch:

sum of all logical ports <=

(number of non-ATM trunks on the switch * number of active VLANs on that trunk)

+ (number of ATM trunks on the switch * number of active VLANs on that trunk * 2)

+ number of nontrunking ports on the switch

where the sum of all logical ports equals:

–

400 for Supervisor Engine I (with 20-MB DRAM)

–

1500 for Supervisor Engine II and IIIF

–

4000 for Supervisor Engine III