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Cisco Bug: CSCul17734 - FE TCAM gets disabled, drops PIM (inc. register pass through) packets

Last Modified

Nov 27, 2020

Products (1)

  • Cisco Catalyst 6000 Series Switches

Known Affected Releases

12.2(33)SXI9 12.2(33)SXJ5.9 15.1(1)SY

Description (partial) 

Symptom:
PIM register fail to pass through the box. FE TCAM is disabled on the ingress interface which results in this behavior.

Conditions:
PIM is configured on port-channel and none of its member ports have PIM configured as of now. 

If any of the Member port had PIM configured (as routed port or otherwise) any time on it  since box came up. 

Issue can occur as such or after flap of port-channel or member link which had PIM configured in past.
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