Cisco OL-4015-08 Manual de usuario Pagina 274

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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
CSCsc73436
Symptoms: High CPU usage may occur and the table versions of BGP peers are reset to zero.
Conditions: This symptom is observed when you update a complex policy on a Cisco router that has
a complex configuration of BGP peers.
Workaround: There is no workaround.
CSCsc75426
Symptoms: A router that is configured for BGP and that has the ip policy-list command enabled
may unexpectedly reload because of a bus error or SegV exception.
Conditions: This symptom is observed when BGP attempts to send an update with a “bad” attribute.
Workaround: There is no workaround.
ISO CLNS
CSCsc63871
Symptoms: When IS-IS and CLNS are configured, a router may enter a state in which only one
adjacency is shown in the output of the show clns interface command, even though the show clns
neighbors command may correctly display all the neighbors that are connected to the interface.
When this situation occurs and any one of the neighbors on the segment goes down, all routing
updates may be lost. The single adjacency is torn down and despite the fact that the output of the
show clns neighbors command still shows the neighbors, routing stops because there are no
adjacencies.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.2(18)S1 or
Release 12.3(9b) when an adjacency goes down while it is still in the INIT state. The symptom
occurs because the adjacency counter is incorrectly decremented. The symptom may also occur in
other releases.
Workaround: Enter the shutdown interface configuration command followed by the no shutdown
interface configuration command on the interface that reports only one adjacency.
Alternate Workaround: Enter the clear clns neighbors command on the affected router.
Miscellaneous
CSCee20451
Symptoms: A VC may experience an output stuck condition.
Conditions: This symptom occurs when using T1 ATM (the IMA function is not used) on a
PA-A3-8T1IMA.
Workaround: Perform the clear interface command.
CSCee31719
Symptoms: Multicast packets are not fast-switched on an MDT tunnel interface, causing packets to
be blackholed.
Conditions: This symptom is observed on a Cisco router that functions as a PE router in a Multicast
VPN environment.
Workaround: There is no workaround.
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