spb-rs2/ipv4: show protocols all realhost

realhost BGP --- down 2020-10-21

Description:    realhost/51520/as-rh
  BGP state:          Down
    Neighbor address: 185.1.152.223
    Neighbor AS:      51520
    Local AS:         50817
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable