msk-rs2/ipv4: show protocols all StackGroup

StackGroup BGP --- up 2020-02-14 Established

Description:    StackGroup/200044/AS-SG
  BGP state:          Established
    Neighbor address: 31.44.187.108
    Neighbor AS:      200044
    Local AS:         50817
    Neighbor ID:      89.249.16.248
    Local capabilities
      Multiprotocol
        AF announced: ipv4
      Route refresh
      Graceful restart
      4-octet AS numbers
      Enhanced refresh
      Long-lived graceful restart
    Neighbor capabilities
      Multiprotocol
        AF announced: ipv4
      Route refresh
      Graceful restart
      4-octet AS numbers
      Long-lived graceful restart
    Session:          external route-server AS4
    Source address:   31.44.187.254
    Hold timer:       47.434/90
    Keepalive timer:  2.665/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         47 imported, 0 filtered, 85208 exported, 43 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            241          0          6        141         94
      Import withdraws:           45          0        ---         12         39
      Export updates:        5586987         88          6        ---    5586893
      Export withdraws:      2593274        ---        ---        ---    2593252
    BGP Next hop:   31.44.187.254