Datasheet

Release Notes for Catalyst 4500 Series Software Release 7.x

OL-1983-28

Open and Resolved Caveats in Software Release 7.6(10)

• In rare conditions Dot1x authenitication may cause a switch to reset. This problem is resolved in

software release 7.6(11). (CSCeg36465)

• A Catalyst 4000 switch with a Supervisor Engine 2, configured with switch acceleration, reloads

unexpectedly when the whichgigaport 1/1 or whichgigaport 1/2 hidden command is executed. This

problem is resolved in software release 7.6(11). (CSCeg49479)

• The MIB object “snmpEngineTime” does not report the correct value if the SNMP engine has been

active for more than 496 days. This problem is resolved in software release 7.6(11). (CSCeg61577)

• With a Supervisor Engine 2/MSFC2, a MST BPDU might not be generated when a blocking port

forms a channel and moves to forwarding state. This behavior results in the CAM table not being

flushed at the other end of the link which causes a communication loss. This problem is resolved in

software release 7.6(11). (CSCee08366)

• You might experience a problem with an SSH login. The login prompt appears and you enter your

a blank line and pressing Enter again does nothing. If you try to enter a command, there is no echo

on the screen but the output from the command is displayed on the screen. This problem is not

affecting the ability of the switch to function correctly. Once the problem happens, it is continuous.

Logging off and back on does not clear the problem. You must reboot the switch to clear the

problem. If you attempt an SSH login on an affected switch and it fails, you can immediately do an

SSH login to an unaffected switch from the same session without a problem. This problem is

resolved in software release 7.6(11). (CSCef54438)

• If a port goes up and down, you might see a port security failure. If port security is enabled on the

port, if the port goes up and down during the programming of the secure MAC address, you will lose

connectivity. This problem is resolved in software release 7.6(11). (CSCef06707)

• You might see a VTP pruning failure with spanning tree PortFast enabled. This problem is resolved in

software release 7.6(11). (CSCef86022)

Open and Resolved Caveats in Software Release 7.6(10)

These sections describe the open and resolved caveats in supervisor engine software release 7.6(10):

• Open Caveats in Software Release 7.6(10), page 23

• Resolved Caveats in Software Release 7.6(10), page 23

Open Caveats in Software Release 7.6(10)

There are no open caveats in software release 7.6(10).

Resolved Caveats in Software Release 7.6(10)

These caveats are resolved in software release 7.6(10):

• A Catalyst 4500 series switch with a WS-X4448-GB-RJ45 module that includes 10/half hardcoded

ports might display as connected, even if there is no cable connected to the port. This problem is

resolved in software release 7.6(10). (CSCef43904)