spb-rs2/ipv4: show protocols all sovtel

sovtel BGP --- start 2021-01-25 Passive

Description:    sovtel/42097/AS-SOVTEL/via SovTel
  BGP state:          Passive
    Neighbor address: 185.1.152.62
    Neighbor AS:      42097
    Local AS:         50817
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable