code: def _configure_nve_member(self, vni, device_id, mcast_group, host_id):
          
          host_nve_connections = self._get_switch_nve_info(host_id)
  
          for switch_ip in host_nve_connections:
  
              # If configured to set global VXLAN values then
              #   If this is the first database entry for this switch_ip
              #   then configure the "interface nve" entry on the switch.
              if cfg.CONF.ml2_cisco.vxlan_global_config:
                  nve_bindings = nxos_db.get_nve_switch_bindings(switch_ip)
                  if len(nve_bindings) == 1:
                      LOG.debug("Nexus: create NVE interface")
                      loopback = self.get_nve_loopback(switch_ip)
                      self.driver.enable_vxlan_feature(switch_ip,
                          const.NVE_INT_NUM, loopback)
  
              # If this is the first database entry for this (VNI, switch_ip)
              # then configure the "member vni #" entry on the switch.
              member_bindings = nxos_db.get_nve_vni_switch_bindings(vni,
                                                                    switch_ip)
              if len(member_bindings) == 1:
                  LOG.debug("Nexus: add member")
                  self.driver.create_nve_member(switch_ip, const.NVE_INT_NUM,
                                                vni, mcast_group)
docs: Add "member vni" configuration to the NVE interface.
  
          Called during update postcommit port event.