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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)S2
CSCsb52900
Symptoms: An inconsistency may occur in the outlabel information that is used by BGP and MPLS
forwarding.
Conditions: This symptom is observed when there are two route reflectors (RRs) that advertise the
same route and when one of the routes is the best path. The symptom occurs when the following
conditions are present:
The PE router that is the source restarts, causing the prefix to be readvertised with a new label.
The RR that forms the non-best path delays the withdrawal and readvertisement of the prefix,
for example, because the RR has a heavy load.
This situation causes BGP to function with the new label but MPLS forwarding to function with the
old label.
Workaround: Enter the clear ip route network command for the affected prefix.
CSCsb88907
Symptoms: A Cisco 12000 series RP crashes when you enter the clear l2tun all command.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(30)S3 when the debug vpdn l2x-packets command is enabled on the router.
Workaround: Do not enter the clear l2tun all command when the debug vpdn l2x-packets
command is enabled on the router.
CSCsc01223
Symptoms: The following symptoms may occur after you have reloaded a router:
For a session that is in the idle state, the output of the show l2tun session brief command may
not show a circuit/interface name, that is, the output shows "-".
Not every session comes up.
When the debug ssm cm error command is enabled, a “Two segs” error is consistently
generated in the log.
Conditions: This symptom is observed when multiple L2TPv3 Xconnect links are configured and
occurs only after you have reloaded the router.
Workaround: Disable the xconnect command for the idle session and then re-enable the same
command.
CSCsc16318
Symptoms: When you enter the shutdown interface configuration command followed by the no
shutdown interface configuration command on all serial interfaces of an MLP bundle, a ping fails
because OSPF is stuck in the INIT state.
Conditions: This symptom is observed even while the MLP bundle comes up after you have entered
the no shutdown interface configuration command.
Workaround: Enter the shutdown interface configuration command followed by the no shutdown
interface configuration command on the main interface of the MLP bundle.
CSCsc30268
Symptoms: When you reload one line card, all other line cards in the chassis may reload
unexpectedly.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS
Release 12.0(32)S or an earlier release and on a Cisco 7600 series that runs Cisco IOS
Release 12.2(18)SX.
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