lg/ipv4: show protocols all bgp4v4

bgp4v4 BGP --- up 2021-06-29 Established

Description:    bgp4.f.de.plusline.net
  BGP state:          Established
    Neighbor address: 213.83.21.131
    Neighbor AS:      12306
    Local AS:         12306
    Neighbor ID:      213.83.21.131
    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
      Enhanced refresh
    Session:          internal multihop AS4
    Source address:   82.98.65.76
    Hold timer:       142.098/180
    Keepalive timer:  43.609/60
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Routes:         847638 imported, 238 exported, 847605 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:      190193804          0          0      58264  190135540
      Import withdraws:     11159017          0        ---          5   11159012
      Export updates:      318782531  318780920          0        ---       1611
      Export withdraws:     10612191        ---        ---        ---        698
    BGP Next hop:   82.98.65.76
    IGP IPv4 table: master4