spb-rs1/ipv4: show protocols all tiera

tiera BGP --- start 2021-06-18 Passive

Description:    tiera/39598/AS-TIERA/via Tiera
  BGP state:          Passive
    Neighbor address: 185.1.152.69
    Neighbor AS:      39598
    Local AS:         50817
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   500
      Action:       disable