bird> s interfaces
lo up (index=1)
        MultiAccess AdminUp LinkUp Loopback Ignored MTU=65536
        2803:1920::b4b2:5f61:d37f:0/112 (Primary, scope univ)
        2803:1920::b4b2:5f61:d37f:1/112 (Unselected, scope univ)
        2803:1920::b4b2:5f61:d37f:2/112 (Unselected, scope univ)
        2803:1920::b4b2:5f61:d37f:3/112 (Unselected, scope univ)
        2803:1920::b4b2:5f61:d37f:4/112 (Unselected, scope univ)
        2803:1920::b4b2:5f61:d37f:5/112 (Unselected, scope univ)
        2803:1920::b4b2:5f61:d37f:6/112 (Unselected, scope univ)
        2803:1920::b4b2:5f61:d37f:7/112 (Unselected, scope univ)
        2803:1920::b4b2:5f61:d37f:8/112 (Unselected, scope univ)
        2803:1920::b4b2:5f61:d37f:9/112 (Unselected, scope univ)
        ::1/128 (Unselected, scope host)
ens18 up (index=2)
        MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500
        2620:13a:c000:fa0::23/44 (Primary, scope univ)
        fe80::7093:2aff:fe32:9f9a/64 (Unselected, scope link)
tap0 up (index=3)
        MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1420
        2803:1920::9c8f:e163:d6a:1/112 (Primary, scope univ)
        fe80::3436:dcff:fec0:2e95/64 (Unselected, scope link)
backup up (index=5)
        PtP Multicast AdminUp LinkUp MTU=1420
        2803:1920::9c8f:e163:d6f:0/127 (Primary, opposite 2803:1920::9c8f:e163:d6f:1, scope univ)
bird> s ospf interface
main:
Interface tap0 (IID 0)
        Type: broadcast
        Area: 0.0.0.0 (0)
        State: Backup
        Priority: 1
        Cost: 10000
        Hello timer: 1
        Wait timer: 4
        Dead timer: 10
        Retransmit timer: 5
        Designated router (ID): 172.20.0.9
        Designated router (IP): fe80::7c32:23ff:fe05:5017
        Backup designated router (ID): 23.152.224.172
        Backup designated router (IP): fe80::3436:dcff:fec0:2e95
bird> s ospf neighbors
main:
Router ID       Pri          State      DTime   Interface  Router IP   
172.20.0.9        1     Full/DR         00:09   tap0       fe80::7c32:23ff:fe05:5017