vm-birdlg/ipv4: show protocols all rs1

rs1 BGP Trs1 up 2021-04-20 Established

Description:    session avec RR-l1
  Preference:     100
  Input filter:   ACCEPT
  Output filter:  REJECT
  Routes:         86690 imported, 0 exported, 86690 preferred
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:       14520979          0          0    1245499   13275480
    Import withdraws:      6780089          0        ---      26138    6753951
    Export updates:       13275480   13275480          0        ---          0
    Export withdraws:      6753951        ---        ---        ---          0
  BGP state:          Established
    Neighbor address: 77.95.71.9
    Neighbor AS:      43100
    Neighbor ID:      77.95.71.7
    Neighbor caps:    refresh enhanced-refresh restart-aware AS4
    Session:          external AS4
    Source address:   77.95.71.15
    Hold timer:       170/240
    Keepalive timer:  52/80