tll-rs1/ipv4: show protocols all svols

svols BGP --- start 2021-05-04 Passive

Description:    svols/51028/AS51028
  BGP state:          Passive
    Neighbor address: 37.9.49.91
    Neighbor AS:      51028
    Local AS:         57936
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable