debug frrouting

debug bgp neighbor-events
debug bgp keepalives
debug bgp zebra
debug bgp update-groups
debug bgp updates

 bgp log-neighbor-changes

Troubleshooting

To troubleshoot EVPN, enable FRR debug logs. The relevant debug options are as follows:

• debug zebra vxlan traces VNI addition and deletion (local and remote) as well as MAC and neighbor addition and deletion (local and remote).
• debug zebra kernel traces actual netlink messages exchanged with the kernel, which includes everything, not just EVPN.
• debug bgp updates traces BGP update exchanges, including all updates. Output is extended to show EVPN specific information.
• debug bgp zebra traces interactions between BGP and zebra for EVPN (and other) routes.