hels-rs2/ipv4: show protocols all nwlink

nwlink BGP --- up 2021-06-21 Established

Description:    nwlink/42893/NOTHING
  BGP state:          Established
    Neighbor address: 193.27.37.28
    Neighbor AS:      42893
    Local AS:         39607
    Neighbor ID:      10.135.154.253
    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:   193.27.37.254
    Hold timer:       112.589/180
    Keepalive timer:  33.835/60
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   REJECT
    Output filter:  (unnamed)
    Import limit:   500
      Action:       disable
    Routes:         0 imported, 3 filtered, 1852 exported, 0 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:              3          0          3          0          0
      Import withdraws:            0          0        ---          3          0
      Export updates:        2853262          0          0        ---    2853262
      Export withdraws:      2841078        ---        ---        ---    2841078
    BGP Next hop:   193.27.37.254