msk-rs2/ipv4: show protocols all TNC

TNC BGP --- down 21:05:57.404

Description:    TNC/30833/AS-TNC
  BGP state:          Down
    Neighbor address: 31.44.187.232
    Neighbor AS:      30833
    Local AS:         50817
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable