spb-rs2/ipv4: show protocols all mssltd

mssltd BGP --- start 2020-04-23 Passive

Description:    mssltd/205079/AS205079
  BGP state:          Passive
    Neighbor address: 185.1.152.198
    Neighbor AS:      205079
    Local AS:         50817
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable