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Cisco Bug: CSCtb12487 - Multicast ET DB entires not deleted quickly.

Last Modified

Jan 13, 2010

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases

12.2(33)SCB

Description (partial)

None
Symptom:

Unused multicast flows, i.e. flows that have no member CMs in the system can take a long time to be
cleaned up and the IGMP Input process continues to hold large amount of memory.

Conditions:

This occurs when 
a. There are CMs that have joined multiple multicast flows
b. These CMs are not responding to any IGMP queries for the flow, ie. the are no longer interested
in receiving the flow, but have not sent IGMP leave for these flows.
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