rix-rs2/ipv4: show protocols all flex

flex BGP --- up 2021-11-06 Established

Description:    flex/21453/AS-FLEX
  BGP state:          Established
    Neighbor address: 193.27.39.158
    Neighbor AS:      21453
    Local AS:         49634
    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
        AF supported: ipv4
        AF preserved:
      4-octet AS numbers
    Session:          external route-server AS4
    Source address:   193.27.39.254
    Hold timer:       123.988/180
    Keepalive timer:  30.125/60
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   500
      Action:       disable
    Routes:         81 imported, 2 filtered, 98713 exported, 73 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:            652          0          7         28        617
      Import withdraws:          538          0        ---         12        533
      Export updates:        3006622        630         19        ---    3005973
      Export withdraws:      2147646        ---        ---        ---    2147148
    BGP Next hop:   193.27.39.254