msk-rs2/ipv4: show protocols all DTS

DTS BGP --- start 2019-06-05 Connect Socket: Connection refused

Description:    DTS/34898/AS-SYMBIOS
  BGP state:          Connect
    Neighbor address: 31.44.187.119
    Neighbor AS:      34898
    Last error:       Socket: Connection refused
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable