Datasheet

22
Release Notes for Catalyst 4500 Series Software Release 7.x
OL-1983-28
Open and Resolved Caveats in Software Release 7.6(11)
Resolved Caveats in Software Release 7.6(12)
These caveats are resolved in software release 7.6(12):
• In rare occurrences, when a root switch is running Rapid PVST+ and a second switch is running in
PVST+ mode, if a VLAN is added to the second switch and was preconfigured on the root switch,
the second switch might receive malformed BPDUs from the root switch for that VLAN and the
secondary root switch might not receive any BPDUs from the root switch on that particular VLAN.
This behavior results in ports on the second switch going into forwarding mode causing a spanning
tree loop. The loop may cause high CPU utilization on these switches. This problem is seen only
when adding a VLAN to a switch that is running in PVST+ mode and only if the VLAN had been
preconfigured for quite some time on the root switch which is running Rapid PVST+.
Workaround: Remove the VLAN from all switches, add it again to all switches, then reboot the
root switch or the secondary root switch. This problem is resolved in software release 7.6(12).
(CSCeh53054)
• Using 802.1X, simultaneous authentications might fail. This problem is resolved in software release
7.6(12). (CSCeh52596)
• A Catalyst 4000 switch with a Supervisor Engine II (WS-X4013) may experience high cpu on the
"Packet Forwarding" process after you upgrade your software from software release 6.4(15),
7.6(11), or 8.4(5)GLX.
Workaround: There is no workaround. This problem is resolved in software release 7.6(12).
(CSCeh26223)
Open and Resolved Caveats in Software Release 7.6(11)
These sections describe the open and resolved caveats in supervisor engine software release 7.6(11):
• Open Caveats in Software Release 7.6(11), page 22
• Resolved Caveats in Software Release 7.6(11), page 22
Open Caveats in Software Release 7.6(11)
There are no open caveats in software release 7.6(11).
Resolved Caveats in Software Release 7.6(11)
These caveats are resolved in software release 7.6(11):
• A WS-X4148-RJ45V auto-negotiates to 10-full when connected to computers with certain models
of Intel Pro 1000 MT NIC card.
Workaround: There is no workaround. his problem is resolved in software release 7.6(11).
(CSCeg79650)
• 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(11). (CSCef43904)
• Currently, all dynamically learned secured mac-addresses are now stored in a context file. This
problem is resolved in software release 7.6(11). (CSCef89420)