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Cisco Bug: CSCvu05805 - EPM Core @lazy_obj_update_flush() seen on 144 LBT

Last Modified

Oct 03, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases


Description (partial)

IP is learnt as local Endpoint with MAC 0000.0000.0000. The reason behind this is EPM gets an update for the MAC+IP with an older timestamp. MAC update is rejected and IP is processed as local EP. This caused EPM crash in one scenario and in another case there was a bounce req and EPMC tried to program the all zero MAC and crashed.

This can happen when EPM receives an update from peer with an older timestamp. The fix is to reject the entire req instead of processing IP alone.
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