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Cisco Bug: CSCsy84200 - qinq encap on PC sub-if fails after doing 'no interface port-channel <>'

Last Modified

Jan 31, 2017

Products (1)

  • Cisco 7600 Series Routers

Known Affected Releases

12.2REC 12.2REE 12.2REF 12.2SRE 15.0(1)S

Description (partial)


Symptoms include the following:

pe1(config-if)#int port-c 1.1
pe1(config-subif)#encapsulation do
pe1(config-subif)#encapsulation dot1Q 1 se
pe1(config-subif)#encapsulation dot1Q 1 second-dot1q 2
%ERROR: Standby doesn't support this command                                        ^ 
% Invalid input detected at '^' marker.

(This can be seen consistently if steps are followed. Make sure PC and links are up up)

Standby reload on following the repro steps mentioned in the repro-steps enclosure.


It will be seen if the customer uses the same series of configuration steps as in the repro-steps.

First configuration of a port-channel and member link to it.
Configuration of sub-interfaces to it with single tag encapsulation.
Deletion of the port-channel in entire by the command no interface port-channel <>
reconfiguration of the port-channel and try to configure qinq encapsulation on the sub-interface.
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