msk-rs2/ipv4: show protocols all StackGroup

StackGroup BGP --- up 2018-12-28 Established

Description:    StackGroup/16083/AS-SG
  BGP state:          Established
    Neighbor address: 31.44.187.108
    Neighbor AS:      16083
    Neighbor ID:      89.249.16.248
    Local capabilities
      Multiprotocol
        AF announced: ipv4
      Route refresh
      Graceful restart
      4-octet AS numbers
      Enhanced refresh
    Neighbor capabilities
      Multiprotocol
        AF announced: ipv4
      Route refresh
      Graceful restart
      4-octet AS numbers
    Session:          external route-server AS4
    Source address:   31.44.187.254
    Hold timer:       84.885/90
    Keepalive timer:  17.000/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       restart
    Routes:         40 imported, 0 filtered, 67274 exported
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            143          0          0         80         63
      Import withdraws:           23          0        ---          0         23
      Export updates:         526478         61          0        ---     526417
      Export withdraws:       229181        ---        ---        ---     229171
    BGP Next hop:   31.44.187.254