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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(30)S3
• CSCeh39904
Symptoms: After removing a large number of Frame Relay subinterfaces, the following log is
displayed:
SYS-3-CPUHOG: Task ran for 38160 msec (3/2), process = MDFS LC Process, PC = 41129150
Conditions: This symptom is observed on a Cisco 12000 series that is configured for Multicast VPN.
Workaround: There is no workaround.
• CSCeh40556
Symptoms: Links flap on a 1-port channelized OC-12/STM-4 (DS1/E1) ISE line card after an RP
switchover has occurred.
Conditions: This symptom is observed on a Cisco 12000 series that has two PRPs and that runs
Cisco IOS Release 12.0(31)S.
Workaround: There is no workaround.
• CSCeh40882
Symptoms: On a Cisco 12000 series router with a 1xChOC12/DS1 ISE line card configured with
multilink MFR protocol and a MQC policy, after a reload the QoS does not get applied to the bundle.
The QoS goes to the suspend mode.
Conditions: The bundle loses its QoS policy when the router is reloaded. This problem is observed
when running Cisco IOS Releases 12.0(28)S1, 12.0(30)S, and an interim release for
Release 12.0(31)S.
Workaround: Remove the service-policy from the bundle and re-apply it.
• CSCeh46072
Symptoms: When the following sequence if performed on a GSR, multiple subinterfaces will end
up with the same ifnumber, thus resulting in incorrect CEF entries:
1. add serial subinterface (channelized). 2. delete the interface created. 3. add ATM subinterface. 4.
add back the serial subinterface.
Conditions: This symptom occurs only if the above (or similar) sequence of adding and deleting
subinterface is done.
Workaround: Do not delete and re-add the same subinterface. Instead, enter the shut command and
then the no shut command. The same effect is achieved without running into the above symptom.
• CSCeh49881
Symptoms: In a tag switching-to-IP switching scenario with an ISE ingress line card and an
Engine 4 plus (E4+) egress line card, the following bad packets may be forwarded to the E4+ line
card:
–
tag2ip, with bad ip hdr cksum
–
tag2ip, with ip->tl > L2
–
tag2ip, with ip->tl < 20
–
tag2ip, with ip options packets
–
tag2ip, with ip options packets with bad ip hdr cksum
–
tag2ip, with ip options packets with ip->tl > L2
–
tag2ip, with ip options packets with ip->tl < 20
These bad packets cause packet corruption and an “TX192-3-PAM_PIM” error message on the E4+
line card and may even cause the E4+ line card to reset.
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