lg/ipv4: show protocols all ibgp_regis_ipv6

ibgp_regis_ipv6 BGP --- up 2021-04-14 Established

Description:    iBGP regis
  BGP state:          Established
    Neighbor address: 2a0e:f42:ffff::1
    Neighbor AS:      208627
    Local AS:         208627
    Neighbor ID:      89.234.186.27
    Local capabilities
      Multiprotocol
        AF announced: ipv6
      Route refresh
      Graceful restart
      4-octet AS numbers
      ADD-PATH
        RX: ipv6
        TX:
      Enhanced refresh
      Long-lived graceful restart
    Neighbor capabilities
      Multiprotocol
        AF announced: ipv6
      Route refresh
      Graceful restart
      4-octet AS numbers
      ADD-PATH
        RX:
        TX: ipv6
      Enhanced refresh
      Long-lived graceful restart
    Session:          internal multihop AS4
    Source address:   2a0e:f42::5
    Hold timer:       210.768/240
    Keepalive timer:  51.615/80
  Channel ipv6
    State:          UP
    Table:          master6
    Preference:     100
    Input filter:   ACCEPT
    Output filter:  REJECT
    Routes:         238677 imported, 0 exported, 4078 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:       26238721          0          0       1524   26237197
      Import withdraws:      1018281          0        ---        168    1018113
      Export updates:       52151908   52151907          1        ---          0
      Export withdraws:       390028        ---        ---        ---          0
    BGP Next hop:   2a0e:f42::5
    IGP IPv6 table: master6