
724
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(32)S
• CSCsc34976
Symptoms: A PRP may reload because of a CPUvector 300 error.
Conditions: This symptom is observed on a Cisco 12816 that runs Cisco IOS Release 12.0(28)S1
and that is configured for QoS.
Workaround: There is no workaround.
• CSCsc36217
Symptoms: When you send IPv6 multicast traffic without hardware routes, the IPv6 multicast traffic
is punted to the CPU of the line card without any hardware rate-limiting. This situation may cause
the CPU of the line card to become overloaded.
Conditions: This symptom is observed on a Cisco 12000 series that is configured with Engine 3 and
Engine 5 line cards.
Workaround: There is no workaround.
• CSCsc37404
Symptoms: An Engine 6 line card may reset with the following error messages:
%IPC-5-INVALID: NACK Source Port=0x403F0000
%MCC192-3-CPU_PIF: Error=0x4
%MCC192-3-CPUIF_ERR: Packet Exceeds Programmed Length.
%GSR-3-INTPROC: Process Traceback= 40D32E5C 406D8CE0
...
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(28)S2.
Workaround: There is no workaround.
• CSCsc38678
Symptoms: When IS-IS IPv6 routes flap, a memory leak occurs on an ISE line card, eventually
causing dCEF to be disabled when no more memory is available.
Conditions: This symptom is observed on a Cisco 12000 series that is configured with 180,000 BGP
routes and 6000 IS-IS routes, 10 percent of which flaps each 30 seconds. The symptom occurs only
when IS-IS flaps, not when BGP flaps. The symptom does not occur either when IPv6 routing is not
configured.
Workaround: There is no workaround. If this is an option, remove IPv6 routing by entering the no
ipv6 unicast-routing global configuration command. When the symptom has occurred and dCEF is
disabled, you must reload the line card to restore its memory.
• CSCsc38929
Symptoms: Multicast Distributed Switching (MDS) may become disabled on one or more line cards,
and the following error messages may be generated:
%SYS-2-WATCHDOG: Process aborted on watchdog timeout, process =
TCAM Mngr merge process.
-Traceback= 40030EFC 40112C80 401176A0 4010CB14 405FB2E0 405FC234 4069F47C 4069F6C4
406A12B4 406A2AA0 404E3950 404E57E8 404E59B0 404E5AD4 404F23A8 404FC7E4
--More--
%RP-4-RSTSLOT: Resetting the card in the slot: 1,Event: linecard error report
%QM-2-BAD_TLV: Error in internal messaging - bad tlv 0
%LINK-5-CHANGED: Interface POS1/0/0, changed state to administratively down
%LCINFO-3-CRASH: Line card in slot 1 crashed
The output of the show ip mds stats linecard command shows the MDS status. To reset the lMDS
on the line card(s), enter the clear ip mds linecard command.
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