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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

15.0(0.144)

Description (partial)

Symptom:
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.

Conditions:
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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