spb-rs2/ipv4: show protocols all Olivenet

Olivenet BGP --- start 2019-04-22 Connect

Description:    Olivenet/201746/AS-OLIVENET
  BGP state:          Connect
    Neighbor address: 31.44.186.172
    Neighbor AS:      201746
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable