msk-rs1/ipv4: show protocols all privatenetworks

privatenetworks BGP --- down 2020-09-29

Description:    privatenetworks/42946/AS42946
  BGP state:          Down
    Neighbor address: 185.1.160.21
    Neighbor AS:      42946
    Local AS:         49869
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable