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Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(31)S
Conditions: This symptom is observed on a Cisco Catalyst 6500 series and a Cisco 7500 series when
you send a 64-byte Ethernet frame. The symptom does not occur when the frame size is 512 bytes
or more.
Workaround: There is no workaround.
• 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.
• CSCsa52944
Symptoms: The peak information rate (PIR) receives a random value when a 2-rate 3-color
color-aware MQC policing policy is configured. When you save the configuration and reload the
router, the PIR value is changed into a huge value.
Conditions: These symptoms are observed on a Cisco 12000 series that runs an interim release for
Cisco IOS Release 12.0(31)S.
Workaround: There is no workaround.
Further Problem Description: If PIR has a huge value, it is likely that incoming traffic never violates
the policy.
• CSCsa53001
Symptoms: A VIP6-80 in which a PA-MC-STM-1SMI is installed crashes.
Conditions: This symptom is observed on a Cisco 7500 series that runs a Cisco IOS interim release
for Release 12.0(31)S after link flaps occur on the PA-MC-STM-1SMI that has QoS configured its
serial interfaces.
Workaround: There is no workaround.
• CSCsa53685
Symptoms: Incorrect VC12 defect information may be generated on a Cisco 7500 series that is
configured with a PA-MC-STM-1.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS
Release 12.0(28)S1.
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.
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