spb-rs2/ipv4: show protocols all umlc

umlc BGP --- start 2021-09-04 Passive

Description:    umlc/48084/AS-UMLC
  BGP state:          Passive
    Neighbor address: 185.1.153.60
    Neighbor AS:      48084
    Local AS:         50817
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   500
      Action:       disable