msk-rs2/ipv4: show protocols all spbtv

spbtv BGP --- start 2020-06-17 Passive

Description:    spbtv/197888/AS197888
  BGP state:          Passive
    Neighbor address: 185.1.160.125
    Neighbor AS:      197888
    Local AS:         49869
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable