tll-rs2/ipv4: show protocols all pg19

pg19 BGP --- up 2021-12-02 Established

Description:    pg19/49037/as-pg19
  BGP state:          Established
    Neighbor address: 37.9.49.127
    Neighbor AS:      49037
    Local AS:         57936
    Neighbor ID:      95.174.97.72
    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
      Extended message
      Graceful restart
        Restart time: 120
        AF supported: ipv4
        AF preserved:
      4-octet AS numbers
      Enhanced refresh
      Long-lived graceful restart
    Session:          external route-server AS4
    Source address:   37.9.49.254
    Hold timer:       225.658/240
    Keepalive timer:  64.336/80
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       disable
    Routes:         39 imported, 0 filtered, 97391 exported, 39 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:             39          0          0          0         39
      Import withdraws:            0          0        ---          0          0
      Export updates:         179769         39        121        ---     179609
      Export withdraws:        65199        ---        ---        ---      65199
    BGP Next hop:   37.9.49.254