rs2/ipv4: show protocols all pb_4_interlink_as49774_1

pb_4_interlink_as49774_1 BGP --- start 2020-05-20 Active Socket: Connection refused

Description:    Interlink Banat 1
  BGP state:          Active
    Neighbor address: 86.104.125.173
    Neighbor AS:      49774
    Connect delay:    0.857/5
    Last error:       Socket: Connection refused
  Channel ipv4
    State:          DOWN
    Table:          t_4_interlink_as49774_1
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   50
      Action:       restart