vm-birdlg/ipv4: show protocols all rs1

rs1 BGP Trs1 up 2018-06-12 Established

Description:    session avec RR-l1
  Preference:     100
  Input filter:   ACCEPT
  Output filter:  REJECT
  Routes:         42710 imported, 0 exported, 42710 preferred
  Route change stats:     received   rejected   filtered    ignored   accepted
    Import updates:        3546445          0          0     198604    3347841
    Import withdraws:      1233735          0        ---          0    1233735
    Export updates:        3347841    3347841          0        ---          0
    Export withdraws:      1233735        ---        ---        ---          0
  BGP state:          Established
    Neighbor address: 77.95.71.9
    Neighbor AS:      43100
    Neighbor ID:      77.95.71.9
    Neighbor caps:    refresh enhanced-refresh AS4
    Session:          external AS4
    Source address:   77.95.71.15
    Hold timer:       158/180
    Keepalive timer:  40/60