Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Uživatelský manuál Strana 81

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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Workaround: Move the relay agent function to the global routing table.
CSCtd90429
Symptoms: VPLS traffic occasionally gets blackholed after multiple iterations of mid-point failure
or reoptimization.
Conditions: The symptom is observed when the core-facing interfaces are SIP400.
Workaround: Perform a shut/no shut on the TE tunnel interface.
CSCtd91012
Symptoms: If BRE configurations are present on the HWIDB, when you configure an APS group an
error message will be thrown to remove the BRE configurations.
Conditions: The symptom is observed when there are BRE configurations on the HWIDB and you
try to configure an APS group.
Workaround: Remove the BRE configurations and then configure the APS group.
CSCtd94128
Symptoms: On ES+ cards, packets in the egress direction do not have the outer tag preserved.
Conditions: This is seen on a port-mode configuration for an L2TPv3 tunnel where tagged packets
are sent from the subscriber. The outer tag is always rewritten to null while the COS bits are
preserved.
Workaround: There is no workaround.
CSCtd94438
Symptoms: When the show memory fast fragment detail command is given, it leads to a crash of
the Cisco 7600 series router. The console logs show some semaphore lock-related messages,
IPC/XDR messages, and RP crash-related messages.
Conditions: The symptom is observed when BFD is enabled and the show memory fast fragment
detail command is given.
Workaround: Avoid using the show memory fast fragment detail command, or disable BFD from
the startup configuration and reload the router.
Further Problem Description: If BFD is disabled in the startup configuration (i.e.: BFD is not
configured when bringing up the router) the crash is not seen.
CSCtd99244
Symptoms: ES+ line card crashes reporting double bit ECC error.
Conditions: This symptom occurs usually in the initial phases of line card bootup, but this has also
been reported after a few hours of traffic through the ES+ line card ports.
Workaround: There is no workaround. The ES+ may not report this error in the second reload. If
errors persist, powercycle the chassis, or OIR the ES+.
CSCtd99248
Symptoms: There could be occasional double bit ECC errors for the traffic manager and other
metadata memories that are reported on the Network processor on the ES+ line card.
Conditions: This symptom is observed when the router reloads, OIR of ES+ cards, system
environment temperatures that slowly vary around an ambient temperature of about 30 degreesC.
This happens at system powerup. We have seen double bit ECC problems reported after a few hours
of traffic if the ambient temperatures vary around 30 degreesC.
Workaround: No configuration workaround is available. The line card will reset itself and will be
operational in the second reload.
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