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Cisco Bug: CSCte44433 - 7600-ES20-10G3C delay in relearning MAC addr after clearing from module

Last Modified

Feb 15, 2017

Products (1)

  • Cisco 7600 Series Routers

Known Affected Releases

12.2SRD

Description (partial)

Symptom:

Traffic drop is seen for around 90 seconds when MAC addresses are cleared on the module.  

Conditions:

Have a port-channel with ES20 members across line cards. The ingress traffic is on only 1 member but the egress traffic is out of all the members. 
Clearing the MAC address table on the ingress LC causes traffic dip for aroun 9- seconds.
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