Specifications

1057
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(29)S
Workaround: After the symptom has occurred, readd the sequence number configuration to the PVC.
• CSCee43569
Symptoms: The TE DB on a tunnel headend may become corrupted.
Conditions: This symptom is observed on a Cisco router that has MPLS configured.
Workaround: There is no workaround.
• CSCee43855
Symptoms: Starting with Cisco IOS Release 12.0(26)S, the Cisco 10720 router supports the IPv6
ACL feature. The IPv6 packets are corrupted (including the IPv6 header) for the following scenario:
For a packet in 6PE decapsulation case (MPLS to IPv6), if output ACLs are applied at the output
interface and these ACLs are long enough to require a second PXF pass (known as output ACL split
case), then the outgoing IPv6 packet is corrupted.
Conditions: This symptom is observed on Cisco 10720 routers that are running Cisco IOS
Release 12.0(26)S or later releases.
Workaround: There is no workaround.
• CSCee47026
Symptoms: The ATM HA process may crash.
Conditions: This symptom is observed on a Cisco router that has VCS configured with local
switching.
Workaround: There is no workaround.
• CSCee52752
Symptoms: A Cisco router may crash when interfaces are brought up or when interfaces are deleted.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS Release 12.0 S.
However, this caveat is platform-independent.
Workaround: There is no workaround.
• CSCee55068
Symptoms: On a Cisco router that has L2 PVCs in the AIS alarm state, in addition to sending AIS
cells, the router also sends loopback cells to the customer edge router.
Condition This symptom is observed on a Cisco 12000 series that runs Cisco IOS Release 12.0 S
when the oam-pvc manage command is configured and when the L2 PVC gets enters the AIS alarm
state. However, this caveat is platform-independent.
Workaround: There is no workaround.
• CSCee56225
Symptoms: A Cisco router may experience alignment errors involving MPLS and BGP, and the
output of the show alignment command may show the following information:
Total Spurious Accesses 1, Recorded 1
Address Count Traceback
C 1 0x612EE93C 0x60BD2894 0x60BD2F0C 0x60B8C2DC
Conditions: This symptom is observed on a Cisco router that is configured for MPLS and BGP.
Workaround: There is no workaround. However, note that the symptoms are of a transient nature and
do not affect the functionality of the router.