msk-rs2/ipv4: show protocols all StackGroup

StackGroup BGP --- up 2019-09-12 Established

Description:    StackGroup/200044/AS-SG
  BGP state:          Established
    Neighbor address: 31.44.187.108
    Neighbor AS:      200044
    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:       50.115/90
    Keepalive timer:  15.889/30
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         45 imported, 0 filtered, 81053 exported
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            146          0          0         90         56
      Import withdraws:            5          0        ---          0          5
      Export updates:         319187         48          2        ---     319137
      Export withdraws:       125961        ---        ---        ---     125960
    BGP Next hop:   31.44.187.254