Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 280

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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Conditions: Happens when traffic on the bundle is oversubscribed.
Workaround: There is no workaround.
CSCsl65179
Symptoms: Setting priority queue limit for PFC QoS configurations resets non- priority queue limits
to default values.
Conditions: The symptom is observed when changing the priority queue limit for PFC QoS to the
default setting. If CoS values are mapped to queues with default queue limits of zero, then traffic
with these CoS values will be dropped until non-default configuration is reapplied.
Workaround: After changing the priority queue limit, reapply non default non- priority queue limits.
Further Problem Description: Setting the priority-queue queue-limit to the default values via the
no priority-queue queue-limit or default priority-queue queue-limit commands sets the WRR
queue limits to default values. This action has the side effect of dropping all traffic mapped to queues
4 and 5 until the WRR queue limits are reconfigured.
CSCsl65327
Symptoms: Unable to write a large file when the file size is larger than the NVRAM size, even when
service compress-config is enabled.
Conditions: Occurs when a large configuration file is copied to startup-config when the file is larger
than the NVRAM size
Workaround: Copy the file to running-config and then issue the wr mem command.
CSCsl65335
Symptoms: A Catalyst 6500 or Cisco 7600 router running Web Cache Communication Protocol
(WCCP) may reload when a WCCP redirect ACL is modified.
Conditions: The router must be configured for WCCP L2 redirection with mask assignment and
input redirection on one or more interfaces. Further, WCCP must be configured with a redirect ACL.
The reload is triggered when the ACL is updated (modified) at the same time as an appliance is
shutdown or fails.
Workaround: If possible wait for the appliance to shutdown (WCCP-1-SERVICELOST) before
updating the ACL.
Further Problem Description: The reload may be more apparent when the WCCP control protocol
is experiencing some instability - numerous WCCP-1-SERVICELOST,
WCCP-5-SERVICEFOUND events - or if the appliance is being reconfigured at the same time as
the ACL is updated.
CSCsl65407
Symptom: A routing loop was formed in MPLS/VPN network topology with EIGRP as the PE-CE
routing protocol.
Conditions: A receiving Provider Edge (PE) router does not update the EIGRP topology entry for a
prefix to match the metric information advertised in the BGP ext.community attribute from the
neighboring PE router. EIGRP is ignoring the metric information within the BGP ext. community
attribute and opting to use the metric defined within the redistribute /jointfilesconvert/422273/bgp AS metric k1 k2 k3 k4
k5 command.
Workaround: As a temporary solution, modify the redistribute /jointfilesconvert/422273/bgp AS metric k1 k2 k3 k4 k5
command to redistribute /jointfilesconvert/422273/bgp AS and then add a default-metric k1 k2 k3 k4 k5 command.
Clearing the routing table of the PE may also be necessary.
CSCsl65820
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