Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 289

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735
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Workaround: There is no workaround.
CSCsl85041
Symptoms: Health monitoring tests will not trigger Call-Home message even when the threshold is
reached.
Conditions: When there is a hardware or software failure, health monitoring tests which run in the
background may fail continuously. When the failure threshold is reached, a Call-Home message is
expected but it will not be triggered without this fix.
Workaround: There is no workaround.
CSCsl85391
Symptoms: When an interface comes up or when its IP address has changed, there is a race condition
between the MPLS TE and OSPF code recognizing the event. As a result, when TE calls OSPF to
build an opaque LSA containing the newly available link, OSPF may not be able to match the IP
address with an interface number. This causes the link in question to be omitted from the opaque
LSA.
Conditions: The issue is found to be in the interface between TE and OSPF area.
Workaround: Use shut/no shut to clear the problem.
CSCsl85847
Symptoms: Router may reload due to some sup ipc issue. The XDR gets disabled with the line card
and the RP-SP IPC communication is broken. External Data Representation (XDR) communication
to a line card is disabled, followed by a message in this format:
%XDR-6-XDRDISABLEREQUEST: Peer in slot 2/0 (2) requested to be disabled due to: XDR
Keepalive Timeout. Disabling linecard
Conditions: This symptom is observed on Cisco 7600 series routers that are running Cisco IOS
Release 12.2(33)SRB under some high XDR traffic conditions. Affected line card can be a SIP card,
line card with DFC or SP.
Workaround: There is no workaround.
Further Problem Description: Most common cause of high XDR traffic is flap of a routing peer with
a high number of advertised prefixes. This will cause a high number of updates to the Forwarding
Information Base (FIB), which has to be distributed to SIP cards, line cards with DFC and SP.
CSCsl86316
Symptoms: High CPU utilization and tracebacks occurs in the VTEMPLATE Backgr process of the
VPDN subsystem and may result in the router becoming unstable.
Conditions: The symptoms are observed in an L2TP scenario
Workaround: There is no workaround.
CSCsl86614
Symptoms: E-OAM loopback session gets broken after SSO.
Conditions: This issue is observed in the following scenario:
1. Two routers are connected back-to-back and configured for e-oam.
2. A remote loopback is created and then a switchover is performed.
It is expected that the loopback status holds during switchover, however, the interface exits that state.
Workaround: There is no workaround.
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