spb-rs1/ipv4: show protocols all conveyplus

conveyplus BGP --- start 2020-09-25 Passive Error: BFD session down

Description:    conveyplus/13215/AS-CONVEYPLUS
  BGP state:          Passive
    Neighbor address: 185.1.152.222
    Neighbor AS:      13215
    Local AS:         50817
    Last error:       Error: BFD session down
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable