%L2-L2RIB-5-DUP_HOST

tkifleyesus · ‎07-15-2024

I have NCS 540 router which i recently updated from IXR 7.4.2 to 7.7.2
Not sure if the error is related to the upgrade but i have been seeing a lot of those messages on my NCS 540 router
what could be the cause and how i can i resolve it.
RP/0/RP0/CPU0:Jul 15 15:28:15.512 EDT: l2rib[353]: %L2-L2RIB-5-DUP_HOST : Detected duplicate host X.X.X.X due to mobility in topology 19 (bd1601), NH: BVI1601, during Local update, with host located at local. Existing local host NH: GigabitEthernet0/0/0/13.16. The condition will auto-recover when the host is no longer duplicate.

MHM Cisco World · ‎07-15-2024

Bvi so it evpn and I think it with bgp discovery?

MHM

Giuseppe Larosa · ‎07-15-2024

Hello @tkifleyesus ,

the event is related to an host mobility event

>> L2-L2RIB-5-DUP_HOST : Detected duplicate host X.X.X.X due to mobility in topology 19 (bd1601), NH: BVI1601, during Local update, with host located at local. Existing local host NH: GigabitEthernet0/0/0/13.16. The condition will auto-recover when the host is no longer duplicate.

Verify what you have on GigabitEthernet0/0/0/13.16 and on BVI 1601 associated to bridge domain 1601.