Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 312

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758
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
CSCsm46170
Symptoms: Upon the execution of the test crash command on the active supervisor in an HFS
capable chassis, the new active fabric channel may go out of synchronization, the linecard shows up
minor errors with the show mod command, the traffic stops passing through the linecard, and the
following error message may be seen:
%FABRIC_INTF_ASIC-5-FABRICSYNC_REQ: Fabric ASIC 0: Fabric sync requested after 3 sync
errors
Conditions: The symptoms are observed on an HFS-capable chassis and are triggered by the test
crash command on the active supervisor. It is seen with both SIP200 and SIP400.
Workaround: There is no workaround. The only way to come out of the problem state is with a line
card reset using the hw-module module slot reset command.
CSCsm46290
Symptoms: Weighted Random Early Detection (WRED) does not take effect on the remarked CoS
(Class of Service) value.
Conditions: If a policy-map marks the COS field in the packet and also does WRED on the traffic
classified in the same class, then WRED does not take effect on the newly marked cos value.
Workaround: There is no workaround.
CSCsm46903
Symptoms: The following error messages occur:
%SPA_OIR-3-SW_INIT_TIMEOUT: subslot <slot>/<bay>: SPA initialization not completed.
%SPA_OIR-3-RECOVERY_RELOAD: subslot <slot>/<bay>: Attempting recovery by reloading SPA
Conditions: Occurs in a heavily loaded system with 16,000 xconnects and around 200,000 BGP
routes. When traffic running is being processed during online insertion and removal (OIR), the
linecard fails to come up displays the error messages.
Workaround: Perform another OIR of the linecard.
CSCsm47111
Symptoms: Traceback is seen.
Conditions: Occurs when certain memory checking is enabled.
Impact: This is a fairly harmless issue. No impact.
Workaround: Disable memory checking.
CSCsm47544
Symptoms: Software/SVI-based EoMPLS with VC type Ethernet VLAN does not work with the
following core-facing line cards:
* SIP200
* Flexwan
* Enhanced Flexwan
Conditions: Occurs when the cards above are configured for xconnect SVI-based VLAN interface
with MPLS. If the pseudo-wire VC type negotiated with peer is type 4/Ether Vlan, packets are sent
across pseudo-wire with DOT1q VLAN tag removed causing ping to fail between CEs
Workaround: Use one of the following as core-facing line cards:
* SIP-400
* SIP-600
* ES20
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