spb-rs1/ipv4: show protocols all AirNet

AirNet BGP --- down 15:33:30.402

Description:    AirNet/44923/AS44923/via @AirNet
  BGP state:          Down
    Neighbor address: 31.44.186.29
    Neighbor AS:      44923
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable