msk-rs2/ipv4: show protocols all Megabit

Megabit BGP --- down 15:32:45.518

Description:    Megabit/57864/AS-MEGABIT
  BGP state:          Down
    Neighbor address: 31.44.187.213
    Neighbor AS:      57864
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable