Datasheet

Release Notes for Catalyst 4500 Series Software Release 7.x

OL-1983-28

Open and Resolved Caveats in Software Release 7.6(9)

Resolved Caveats in Software Release 7.6(9)

These caveats are resolved in software release 7.6(9):

• After executing many show commands over and over for 6~9 hours, via a telnet session, the system

tries to access an off-limits address, and reloads. This problem is resolved in software release 7.6(9).

(CSCee45047)

• If a MAC address is configured as a “filtered” address right after the MAC address is learned but

before the address is aged out, traffic will not get filtered or dropped.

Workaround: Enter the clear cam dynamic command. This problem is resolved in software release

7.6(9). (CSCin78010)

• A Catalyst 4500 series switch might reboot abnormally with the following exception code:

Cause : Exception 2: Tlb exception (load or fetch)

This problem is resolved in software release 7.6(9). (CSCef08126)

• A switch running software release 8.3(1)GLX may fail because of an SRAM failure with the

following epc values in the crashdump:

epc 0x00000000100fdee4

epc 0x00000000100fd590

Workaround: Disable the SRAM online diagnostics using the set test switch-memory disable

command. This problem is resolved in software release 7.6(9). (CSCee88146)

• A Catalyst 4500 series switch might reboot abnormally with the following exception code:

Cause : Exception 2: Tlb exception (load or fetch)

This problem is resolved in software release 7.6(9). (CSCef08126)

• The dot3StatsFrameTooLongs counter should not increment when the port is configured as a trunk

port. This problem is resolved in software release 7.6(9). (CSCee94947)

• If you upgrade your switch from any software release 7.x or earlier releases to software release 8.x

and later releases with the boot mode set to “text” and spanning tree set to “PVST+,” the

spanning-tree mode changes to “Rapid PVST+.”

Workaround: Change the boot mode to “binary” before performing the upgrade. This problem is

resolved in software release 7.6(9). (CSCin75737)

• With MISTP enabled and the EtherChannel mode set to "ON," if you configure more than one

EtherChannel and trunk in a short period of time, all of the newly configured channels might not

join the trunk. With this configuration scenario, the problem has also been seen after the switch is

reset. This problem is resolved in software release 7.6(9). (CSCee95922)

• There is a vulnerability in the Transmission Control Protocol (TCP) specification (RFC793). All

Cisco products that contain TCP stack are susceptible to this vulnerability. This advisory is available

at these URLs:

–

http://www.cisco.com/warp/public/707/cisco-sa-20040420-tcp-ios.shtml

This URL describes this vulnerability as it applies to Cisco products that run Cisco IOS

software.

–

http://www.cisco.com/warp/public/707/cisco-sa-20040420-tcp-nonios.shtml

This URL describes this vulnerability for products that do not run Cisco IOS software.

This problem is resolved in software release 7.6(9). (CSCed32349)