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Cisco Bug: CSCvs95666 - 9904: RSP4 multicast drops are seen when an A99 LC is swapped with an A9K LC

Last Modified

Sep 02, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)


In a 9904 chassis with RSP880 and an A99 LC is swapped with an A9K LC, the new A9K LC sees multicast traffic drop only on a few subset of flows. Drops are seen on RSP880 switch fabric device and can be checked using "show controller fabric crossbar statistics" CLI.

Problem is limited to 9904 chassis with RSP880. And the trigger for the problem is swapping an A99 LC with an A9K LC.
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