Download Cisco IOS Enhanced Layer 3 & Voice Software w/ 3DES, (OSPF, IS-IS, IGRP, EIGRP)

Caveats
•
Gigabit IP phones cannot process IEEE 802.1Q tagged CDP packets when 802.1X is configured on
a voice VLAN. This causes the phone to continually register and de-register with Call Manager. 100
Mbps IP phones are not affected.
Workaround: Remove the IEEE 802.1X configuration from the switch port. (CSCsg10135)
•
When the same MAC addresses are learned and aged out on different VLANs, the Cat4k Mgmt
LoPri process will cause CPU utilization to increase. This does not impact local data switching
performance because the LoPri process is of low priority with limited access to the CPU.
Workaround: None. (CSCsg76868)
•
When policing IEEE 802.1Q tagged non-IP traffic and calculating traffic conformance, the policer
excludes the four bytes that constitute the 802.1Q tag even when you configure
qos account layer2 encapsulation.
Workaround: None. (CSCsg58526)
•
When hardcoded duplex and speed settings are deleted after an interface shuts down, an "a-" is
added to the duplex and speed in the output from the show interface status command.
This does not impact performance.
Workaround: Issue the no shutdown command. (CSCsg27395)
•
If the ACL of an SVI interface is too large for the TCAM, ARP replies for the associated VLAN
may not be processed.
Workaround: Upgrade to Cisco IOS Release 12.2(31)SG or later and resize the TCAM with the
access-list hardware region balance command to support the ACL Verify TCAM utilization with
the show platform hardware acl statistics utilization brief command. (CSCse50565)
•
The RADIUS attribute 32 is not being sent to the RADIUS server for Cisco IOS Release 12.2(31)SG
and beyond.
Workaround: Downgrade to Cisco IOS Release 12.2(25)EWA10, if feasible. (CSCsi22041)
Resolved Caveats in Cisco IOS Release 12.2(31)SGA1
This section lists the resolved caveats in Release 12.2(31)SGA1:
•
The Catalyst 4900 switch running 12.2(31)SG and configured for 802.1X may reset after displaying
the following console messages while switching EAP packets:
Jul 27 08:14:36: %SYS-2-FREEFREE: Attempted to free unassigned memory at 1A35ACA8,
alloc 10355D60, dealloc 103594B4
-Traceback= 10FAC5A8 1035A150 1035A30C 105A7A7C 1059F3A8
Jul 27 08:14:36: %SYS-6-MTRACE: mallocfree: addr, pc
1A35ACA8,1035A14C 195FECAC,103592E8 1A1A97D4,60000010 1A1A9780,10359134
1A084698,10249D60 1A16F008,10355724 1A0FBE24,10359098 127B42B8,600000F8
Jul 27 08:14:36: %SYS-6-MTRACE: mallocfree: addr, pc
127B3E80,103594C4 1A35AF4C,600000F2 1A35ACA8,103594B4 1A1F9F6C,1083D310
127B16CC,6000005E 127B11A8,50000208 127B15E0,1083D300 1A17258C,1083D2E4
Jul 27 08:14:36: %SYS-6-BLKINFO: Attempt to free a block that is in use blk 1A35AC80,
words 580, alloc 10355D60, Free, dealloc 103594B4, rfcnt 0
-Traceback= 10F96808 10FAC5B8 1035A150 1035A30C 105A7A7C 1059F3A8
Jul 27 08:14:36: %SYS-6-MEMDUMP: 0x1A35AC80: 0xAB1234CD 0x390000 0x1983C854 0x11F30330
Jul 27 08:14:36: %SYS-6-MEMDUMP: 0x1A35AC90: 0x10355D60 0x1A35B130 0x1A35AC38 0x244
Workaround: Upgrade to Cisco IOS Release 12.2(31)SGA1 or later. (CSCsf09339)
Release Notes for the Catalyst 4900 Series Switch, Cisco IOS Release 12.2(40)SG
62
OL-9592-17