vm-birdlg/ipv4: show protocols all rs1

rs1 BGP Trs1 up 2018-12-18 Established

Description:    session avec RR-l1
  Preference:     100
  Input filter:   ACCEPT
  Output filter:  REJECT
  Routes:         49684 imported, 0 exported, 49684 preferred
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:        3246217          0          0      12817    3233400
    Import withdraws:      1059657          0        ---        395    1059262
    Export updates:        3233514    3233514          0        ---          0
    Export withdraws:      1059262        ---        ---        ---          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:       206/240
    Keepalive timer:  47/80