spb-rs2/ipv4: show protocols all spline

spline BGP --- up 2020-07-19 Established

Description:    spline/49722/AS-SP-LINE/via SPLine
  BGP state:          Established
    Neighbor address: 185.1.152.113
    Neighbor AS:      49722
    Local AS:         50817
    Neighbor ID:      91.215.227.1
    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
      4-octet AS numbers
    Session:          external route-server AS4
    Source address:   185.1.153.0
    Hold timer:       111.024/180
    Keepalive timer:  3.326/60
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         2 imported, 0 filtered, 93629 exported, 1 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:              4          0          0          0          4
      Import withdraws:            1          0        ---          0          1
      Export updates:        1751768          3          2        ---    1751763
      Export withdraws:       883481        ---        ---        ---     883482
    BGP Next hop:   185.1.153.0