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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(32)S
CSCec65977
Symptoms: A 4-port serial enhanced port adapter (PA-4T+) may receive packets, even though the
status of the serial interface is “down/down.
Conditions: This symptom is observed on a PA-4T+ that is installed in a Cisco 7200 series router
and that is connected to a 1-port serial WAN interface card (WIC-1T) that is installed in a
Cisco 2600 series. The serial interfaces of both routers are connected with a CSU/DSU.
The input packet counter of the serial port of the PA-4T+ increments even though the status of the
serial interface is “down/down.” However, the 2600 series functions properly, and the input packet
counter of its serial interface does not increment.
Possible Workaround: Administratively shut down the serial port.
CSCee48782
Symptoms: An Engine 4 or Engine 4+ line card in a Cisco 12000 series that switches multicast
traffic may reload.
Conditions: This symptom is observed on a Cisco 12000 series when the ip multicast-routing
distributed command is configured.
Workaround: Configure an access control list (ACL) to block ingress traffic with a source address
of 0.0.0.0, as in the following example:
access-list 1 deny 0.0.0.0
access-list 1 permit any
interface pos3/0
ip access-group 1 in
Note that this ACL does not have any effect on multicast traffic because multicast traffic with source
address 0.0.0.0 is dropped anyway by the Reverse Path Forwarding (RPF) check.
CSCee93598
Symptoms: An LSP ping reports that an LSP is fine although the LSP is unable to carry MPLS
payloads such as VPN traffic.
Conditions: This symptom is observed on a Cisco router when MPLS echo request packets are
forwarded from untagged interfaces that are directly connected to the destination of the LSP ping
and when the IP time-to-live (TTL) value for the MPLS echo request packets is set to 1.
Workaround: There is no workaround.
CSCef02056
Symptoms: An inter-AS TE tunnel continues to resignal a path that is rejected instead of switching
to a second path.
Conditions: This symptom is observed when the RSVP local policy on the ASBR rejects the path
message because it does not meet the policy.
Workaround: There is no workaround.
CSCef08173
Symptoms: A VIP in which a PA-2FE port adapter is installed may reload because of memory
corruption that is caused by a hardware issue of the PA-2FE port adapter.
Conditions: This symptom is observed when the VIP and port adapter function under stress, when
the VIP is unable to serve memory read/write requests from the port adapter, and when there are PCI
retry timeouts.
Workaround: There is no workaround.
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