tll-rs2/ipv4: show protocols all rokson

rokson BGP --- start 2020-02-25 Passive

Description:    rokson/5433/AS-ROKSON
  BGP state:          Passive
    Neighbor address: 37.9.49.46
    Neighbor AS:      5433
    Local AS:         50817
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable