Specifications
1269
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S5
• CSCsa49740
Symptoms: Packets are punted to the GRP at a rate of 5000 pps, causing the CPU utilization of the
CPU to reach more than 50 percent.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(26)S3 when a 4-port Packet-over-SONET OC-48c Engine 4 plus line card
(4OC48E/POS-SR-SC=) receives TCP packets with destination 0.0.0.0.
Workaround: There is no workaround.
• CSCsa49906
Symptoms: When loopback is removed from a T1 interface of a CT3 controller, the following
warning message is encountered with a removal of the loopback being denied:
GSR(config)#cont t3 7/5
GSR(config-controller)#no T1 5 loopback
%Inband loopback is already running on T1 12. Only one code can be running per
T3 at a time
GSR(config-controller)#
Conditions: The symptom is observed after upgrading to Cisco IOS Release 12.0 (27)S2 on a Cisco
12000 Series Gigabit Switch Router with a 6CT3 linecard.
Workaround: There is no workaround.
• CSCsa54891
Symptoms: Under normal operation, an Engine 6 line card may reset with the following error
messages and tracebacks:
%TX192-3-CPUIF: Error=0x10
rd 0x73 base 0x73 hdr 0x75 last 0x75 wr 0x75 insert 0x0 back 0x0 len 0x2474 cnt 0x0
-Traceback= 40D89758 405A9008 405EC67C 406D5E7C 406D64F8 400FC020
%TX192-3-CPUIF_ERR: FIFO RAM3 Parity Error.
-Traceback= 40D89808 405A9008 405EC67C 406D5E7C 406D64F8 400FC020
%GSR-3-INTPROC: Process Traceback= 400FFD20 400FCAA0 40010F6C
-Traceback= 404EFBCC 406D6760 400FC020
%FABRIC-3-ERR_HANDLE: Due to FIA HALT error, reconfigure FIA on slot 9
Conditions: This symptom is observed on a Cisco 12000 series when false RAM parity errors occur.
Workaround: There is no workaround.
Further Problem Description: The fix for this caveat determines whether the RAM parity errors are
real or false.
• CSCsa56142
Symptoms: Entering the no export map VRF configuration mode command has no effect.
Conditions: This symptom is observed on a Cisco router that is configured for RPR+ or SSO when
the you take the following steps:
1) You enter the no export map VRF configuration mode command on the active RP.
2) You enter the write memory command.
3) You initiate an RPR+ or SSO switchover.
After these steps, the export map is still configured on the new active RP, while it should no longer
be present.