Datasheet
32
Release Notes for Catalyst 4500 Series Software Release 7.x
OL-1983-28
Open and Resolved Caveats in Software Release 7.6(3a)
• On a Catalyst 2948G switch you may lose the SPAN configuration after changing from binary to
text config mode.
Workaround: Reenter SPAN configurations. This problem is resolved in software release 7.6(4).
(CSCec17704)
• If you initiate a session on a Supervisor Engine to a WS-X4232-L3 module the session may not work
after running for an unknown period of time. This situation occurs because of an incorrect adjacency
in the Catalyst operating system side of the inband MAC address for the WS-4232-L3 module.
Workaround: Establish a Telnet session with a Gigabit Ethernet 3 or Gigabit Ethernet 4 port (or a
subinterface IP address) and reset the WS-X4232-L3 module to temporarily recover the problem.
After you have recovered the session, you need to move the sc0 interface into a different VLAN to
avoid this problem in the future. This problem is resolved in software release 7.6(4). (CSCdx30617)
• When configuring VMPS, you may run out of memory in some rare instances.
Workaround: Change all dynamic memberships to static and then back to dynamic. This problem
is resolved in software release 7.6(4). (CSCec29748)
• A Catalyst 4500 series switch with spanning tree disabled may forward 1Q-BPDU packets causing
a downstream port to incorrectly block its ports.
Workaround: Enable spanning tree using the set spantree enable command. This problem is
resolved in software release 7.6(4). (CSCeb43406)
• Upgrading a Catalyst 4500 series switch to software Release 12.1(13)EW can cause a problem with
the WS-X4148-RJ45V Power over Ethernet (PoE) module.
Workaround: Turn off autonegotiation using the set port speed command. This problem is
resolved in software release 7.6(4). (CSCec67534)
• After upgrading a Catalyst 4500 series switch from software release 6.3(3) to software release
7.6(1), you cannot configure logging-level COPS. This problem is resolved in software release
7.6(4). (CSCec37831)
Open and Resolved Caveats in Software Release 7.6(3a)
These sections describe the open and resolved caveats in supervisor engine software release 7.6(3a):
• Open Caveats in Software Release 7.6(3a), page 32
• Resolved Caveats in Software Release 7.6(3a), page 33
Open Caveats in Software Release 7.6(3a)
These caveats are open in software release 7.6(3a):
• A Catalyst 4500 series switch with spanning tree disabled may forward 1Q-BPDU packets causing
a downstream port to incorrectly block its ports.
Workaround: Enable spanning tree using the set spantree enable command. (CSCeb43406)
• If a port with port security enabled receives a filtered CAM entry on a VLAN, the port may shut
down.
Workaround: There is no workaround. (CSCin51183)










