br2/ipv4: show protocols all bgsf_br4_gcn

bgsf_br4_gcn BGP --- up 2021/07/06-03:11:25 Established

BGP state:          Established
    Neighbor address: 10.10.66.4
    Neighbor AS:      198228
    Local AS:         198228
    Neighbor ID:      87.121.34.11
    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 AS4
    Source address:   10.10.66.2
    Hold timer:       212.107/240
    Keepalive timer:  46.988/80
  Channel ipv4
    State:          UP
    Table:          master4
    Preference:     100
    Input filter:   bgsf_IN
    Output filter:  (unnamed)
    Import limit:   870000
      Action:       disable
    Export limit:   15
      Action:       disable
    Routes:         334503 imported, 0 filtered, 2 exported, 257152 preferred
    Route change stats:     received   rejected   filtered    ignored   accepted
      Import updates:       15919840          0          0    3403524   12516316
      Import withdraws:      4293574          0        ---         59    4293515
      Export updates:       44022592   15000388   29022201        ---          3
      Export withdraws:       864264        ---        ---        ---          1
    BGP Next hop:   10.10.66.2