msk-rs2/ipv4: show protocols all flex

flex BGP --- up 2021-03-31 Established

Description:    flex/21453/AS-FLEX
  BGP state:          Established
    Neighbor address: 185.1.160.159
    Neighbor AS:      21453
    Local AS:         49869
    Neighbor ID:      80.252.128.1
    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
        Restart time: 120
        Restart recovery
        AF supported: ipv4
        AF preserved: ipv4
      4-octet AS numbers
    Session:          external route-server AS4
    Source address:   185.1.161.0
    Hold timer:       134.703/180
    Keepalive timer:  30.363/60
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         108 imported, 1 filtered, 103988 exported, 61 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            471          0          3        214        254
      Import withdraws:           68          0        ---          1         68
      Export updates:        1326085        320       1990        ---    1323775
      Export withdraws:       517214        ---        ---        ---     516329
    BGP Next hop:   185.1.161.0