Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 8

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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
CSCtk34380
Symptoms: Router may crash during many additions/deletions of MVRFs and/or during SSO
switchover.
Conditions: This symptom is observed on a Cisco 7600 series router with MVRFs added/deleted in
MVPN scenario.
Workaround: There is no workaround.
CSCtk36377
Symptoms: VRF ping fails for some of the VRFs after deleting and adding MVRFs.
Conditions: This symptom is seen when adding and deleting MVRFs using a script.
Workaround: Delete VRF and add it back.
CSCtk36897
Symptoms: Crash is observed.
Conditions: This symptom occurs while unconfiguring “no ipv6 mld snooping”.
Workaround: There is no workaround.
CSCtk47960
Symptoms: Large CLNP packets may be dropped when forwarded over SIP- 200/Flexwan2 module.
Header Syntax errors may be recorded on receiving host.
Remote side will generate the following:
%CLNS-3-BADPACKET: ISIS: L1 LSP, packet (902) or wire (896) length invalid
Conditions: This symptom is seen on Cisco 7600 switch with SIP-200 line card that is running
Cisco IOS 12.2(33)SRD3 and later releases.
Issue is seen when packets larger than 911 bytes are sent (Payload and Header).
Workaround: If CLNS is only used for ISIS neighborships “no isis hello padding” can be configured
to establish ISIS neighborship. For the LSP packets, configure lns-mtu 903 under router isis on the
Cisco 7600 to make this work.
CSCtk83760
Symptoms: Met updates from SUP are reaching Cisco 67xx DFC cards.
Conditions: This symptom is observed during OIF churn. This is not reproduced locally, and the fix
is put in as a sort of preventive mechanism.
Workaround: There is no workaround.
Resolved Caveats—Cisco IOS Release 12.2(33)SRD5
Cisco IOS Release 12.2(33)SRD5 is a rebuild release for Cisco IOS Release 12.2(33)SRD. The caveats
in this section are resolved in Cisco IOS Release 12.2(33)SRD5 but may be open in previous Cisco IOS
releases.
CSCed11719
Symptoms: A switch is learning MAC addresses from the wrong port.
Conditions: This symptom occurs on a dot1q trunk that is connected to that switch port with one of
the subinterfaces configured for bridging.
Workaround: There is no workaround.
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