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Cisco Bug: CSCsz30314 - ES20-Multicast ingress queue wedged

Last Modified

Jan 24, 2017

Products (1)

  • Cisco 7600 Series Routers

Known Affected Releases


Description (partial)

An ES-20/SIP600 line card interface may start dropping multicast frames destined for the router.  This will prevent protocols dependent on multicast hellos/keepalives from functioning on the interface. It is also possible that Xconnect/VPLS end to end mac learning doesn't occur.

It could happen under erroneous  circumstances when lots of fabric errors are seen on ES20/SIP600 line cards.
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