Cisco Bug: CSCvv31871 - EVPN: When we unconfigure and configure NVE in particular order. FLood traffic drop is seen.
Aug 30, 2020
- Cisco Catalyst 9500H Series Switches
Known Affected Releases
16.12.1 16.9.5 17.3.1 17.4.1
Symptom: L2CP VNI is down when all up condition including "host-reachability protocol bgp" is met. NVE conplains L2CP VNI is down dueto bgp host-reachability is un-configured. Conditions: Below L2VNI configure sequence under the NVE interface will trigger the issue: 1, Configure the L2VNI first by command "member vni [id] mcast-group [bum group]", 2, Configure bgp host-reachability and source-interface for the nve interface. 3, Run "show nve vni [id] detail", the VNI is down and the reason said "BGP host-reachability un-configured"
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