Datasheet

36
Release Notes for Catalyst 4500 Series Software Release 7.x
OL-1983-28
Open and Resolved Caveats in Software Release 7.6(1)
• After you reboot a Catalyst 4500 series switch with an upgraded image and enable VMPS, ports that
are configured for dynamic VLAN assignment may not have connectivity.
Workaround: Physically disconnect and reconnect the cable to the port. (CSCea08895)
• 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. (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. (CSCea69221)
• Dynamic VLANs are not always updated on the switch when the incoming SA changes.
Workaround: There is no workaround. (CSCea50001)
Resolved Caveats in Software Release 7.6(1)
These caveats are resolved in software release 7.6(1):
• When CGMP is enabled on a Catalyst 4500 series switch, IGMP global leave is not generated after
a spanning tree topology change occurs in MST mode.
Workaround: Switch to PVST+ or Rapid PVST+ mode. This problem is resolved in software
release 7.6(1). (CSCdz50009)
• Moving a host from a secured port to an unsecured port causes a security violation.
Workaround: There is no workaround. This problem is resolved in software release 7.6(1).
(CSCea07450)
• Under certain conditions a switch may overwhelm the console with log messages for 4 to 5 minutes
when BPDU guard and port security are enabled. The workaround is to disable console logging
using the set logging console disable command. This problem is resolved in software release 7.6(1).
(CSCdz70110)
• When a port receives a VLAN assignment from the RADIUS server and the port mode is set to
multiple-hosts, the output of the show port command may show the old VLAN. The feature works
correctly, allowing multiple hosts.
Workaround: Ignore the output of the show port command. The output of the show spantree
command displays the correct port in the appropriate state. This problem is resolved in software
release 7.6(1). (CSCin26149)
• A port with port security enabled is not included in the static CAM table when an MC receiver is on
the port. When the host sends an IGMP join report to the MC router, the MC router sends a CGMP
join to the switch but the switch does not add the host to the static CAM table.
If there are no other hosts, the switch will flood the MC traffic and all hosts will receive the traffic.
However, if just one host with port security disabled joins the group, only that host will show up in
the static CAM table and all other hosts will stop receiving the MC traffic.
Workaround: Disable either port security or CGMP on the switch. This problem is resolved in
software release 7.6(1). (CSCdz89564)