rs1/ipv4: show protocols all pb_4_flow_1

pb_4_flow_1 BGP --- start 2020-07-24 Connect

Description:    Flow Processor
  BGP state:          Connect
    Neighbor address: 86.104.125.10
    Neighbor AS:      64512
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)