[c-nsp] Transparent mode CSM failover and multicast

[Andy Taylor]

Hi,

Hopefully a simple question...

I currently have a primary and secondary aggregation (distribution)
switches (6500s)with CSMs running in transparent mode. Multicast flows
(PIM SM) pass through the CSMs just fine, but when I fail the primary CSM
to secondary, unicast (icmp) fails over sub 3 seconds, but multicast
takes 40 to 50 seconds to re-establish.

The MSFC is running IOS 12.(18)SXF7 and CSMs run 4.1(7).

Any ideas or thoughts would be greatly appreciated.

All the best,

Andy

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