
456
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
• CSCsv70157
Symptoms: On a Cisco 7609 router that is running Cisco IOS Release 12.2(33)SRD, after
configuring any interface with any carrier-delay value other than 0 (the default), upon entering wr
mem you get an unexpected warning message:
"Warning: Overriding existing carrier delay value to 0"
Conditions: There appears to be no special conditions to reproduce this defect. Simply configure any
interface with a carrier delay and execute wr mem:
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int f2/12
Router(config-if)#carr
Router(config-if)#carrier-delay 2
Router(config-if)#end
Router#wr
Building configuration...
Warning: Overriding existing carrier delay value to 0
%SYS-5-CONFIG_I: Configured from console by console[OK]
Router#
Workaround: There is no workaround.
Further Problem Description: This warning should come when Asymmetric Carrier Delay (ACD) is
configured on an interface and you then attempt to configure Standard Carrier Delay via the
carrier-delay delay interface command. However, the message is coming when ACD is not
configured.
• CSCsv73506
Symptoms: If a port member of a Port-channel interface comes up after a service instance with
bridge-domain is created, it may not join spanning tree for the VLAN corresponding to the
bridge-domain.
Conditions: Unknown at this time.
Workaround: Perform a shut and no shut under the service instance.
• CSCsx56362
Symptoms: BGP selects paths which are not the oldest paths for multipath. This causes BGP to
unnecessarily flap from multipath to non-multipath as a result of route flaps.
Conditions: The symptom is observed when:
1. BGP is configured.
2. More than one equally-good route is available.
3. BGP is configured to use less than the maximum available number of multipaths.
Workaround: There is no workaround.
• CSCsx78789
Symptoms: A router crashes in the presence of MQC samplers.
Conditions: The symptom is observed only when MQC samplers are applied to the interface, when
the configurations are applied in a particular order.
Workaround: Use NetFlow random samplers.
• CSCsy47987
Symptoms: After an RP switchover occurs, some PPP interfaces remain up/down until the router is
reloaded or the encapsulation is changed to HDLC.
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