msk-rs2/ipv4: show protocols all MayakNetwork

MayakNetwork BGP --- start 2019-07-04 Connect BGP Error: Hold timer expired

Description:    MayakNetwork/47551/AS-MAYAK-B
  BGP state:          Connect
    Neighbor address: 31.44.187.159
    Neighbor AS:      47551
    Last error:       BGP Error: Hold timer expired
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable