OSPF

RouterOS Forwarding Protocols
1

do you know how to solve it? mt v7.14.3 both sides

backbone-v2 { version: 2 router-id: 10.255.1.253 } backbone-v2 { 0.0.0.0 } interface { p2p 172.16.10.185%vlan201-xxxxxxx } dropping 4 from 172.16.10.185 - unknown neighbor

or

backbone-v2 { version: 2 router-id: 10.255.1.253 } backbone-v2 { 0.0.0.0 } interface { p2p 172.16.10.185%vlan201-xxxxxxx } dropping 5 from 172.16.10.185 - unknown neighbor

2

mismatch with vlans configuration, re-created vlans based on PVID and seems to work.