spb-rs1/ipv4: show protocols all Marosnet

Marosnet BGP --- down 2019-11-21

Description:    Marosnet/48666/AS-MAROSNET
  BGP state:          Down
    Neighbor address: 31.44.186.163
    Neighbor AS:      48666
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
  Channel ipv6
    State:          DOWN
    Table:          master6
    Preference:     100
    Input filter:   REJECT
    Output filter:  REJECT
    Import limit:   5000
      Action:       disable