spb-rs2/ipv4: show protocols all cdcua

cdcua BGP --- up 2021-10-20 Established

Description:    cdcua/49588/AS-SDS
  BGP state:          Established
    Neighbor address: 185.1.152.214
    Neighbor AS:      49588
    Local AS:         50817
    Neighbor ID:      176.101.192.5
    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:   185.1.153.0
    Hold timer:       136.309/180
    Keepalive timer:  7.302/60
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   500
      Action:       disable
    Routes:         37 imported, 0 filtered, 108177 exported, 30 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:             38          0          0          0         38
      Import withdraws:            1          0        ---          0          1
      Export updates:         301217         33         25        ---     301159
      Export withdraws:       140258        ---        ---        ---     140266
    BGP Next hop:   185.1.153.0