spb-rs1/ipv4: show protocols all AirNet

AirNet BGP --- start 2020-01-20 Passive Received: Administrative shutdown

Description:    AirNet/44923/AS44923
  BGP state:          Passive
    Neighbor address: 31.44.186.29
    Neighbor AS:      44923
    Last error:       Received: Administrative shutdown
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable