Datasheet

35
Release Notes for Catalyst 4500 Series Software Release 7.x
OL-1983-28
Open and Resolved Caveats in Software Release 7.6(1)
• A Catalyst 4006 switch with port channels enabled on the supervisor engine trunk can have a
communication failure between interVLANs.
Workaround: There is no workaround. This problem is resolved in software release 7.6(2).
(CSCdz66547)
• When you enter the show cam dynamic vlanid command, the message “Unable to contact module x”
displays and VMPS does not work.
Workaround: There is no workaround. This problem is resolved in software release 7.6(2).
(CSCea69221)
• Dynamic VLANs are not always updated on the switch when the incoming SA changes.
Workaround: There is no workaround. This problem is resolved in software release 7.6(2).
(CSCea50001)
• If you enable port security and MAC address learning on a switch, when the port sees a MAC address
that contains all zeros, the port is disabled and there is no “Last-Src-Addr.”
Workaround: Reenable the port. This problem is resolved in software release 7.6(2).
(CSCea89001)
• Disabling 802.1X does not work for single authentication and multiple host modes.
Workaround: No workaround is available. You can bring the port back to a normal state by using
the clear config all command followed by resetting the switch. This problem is resolved in software
release 7.6(2). (CSCin41724)
• There is a memory leak that increases the memory held by the console in 16 byte increments. This
memory leak presents itself in one of two ways:
– When you configure a community or isolated VLAN to a primary VLAN using the SNMP CLI.
– Free memory reduces constantly and the memory held by the SptTimer and DTP_Rx process.
You can use the show proc mem command to view the memory held by processes and verify if you
have a memory leak.
Workaround: There is no workaround. (CSCea91118)
Open and Resolved Caveats in Software Release 7.6(1)
These sections describe the open and resolved caveats in supervisor engine software release 7.6(1):
• Open Caveats in Software Release 7.6(1), page 35
• Resolved Caveats in Software Release 7.6(1), page 36
Open Caveats in Software Release 7.6(1)
These caveats are open in software release 7.6(1):
• A Catalyst 4500 series switch running in the access layer may display loop guard-inconsistent
messages if a topology change occurs in corresponding designated switches that have a high number
of spanning tree instances. The switch recovers on its own and does not cause a network outage.
Workaround: There is no workaround. (CSCdz65842)