跨国数据中心IPLC专线，延迟稳定40ms以内，数据同步零中断？？？解决方案//世耕通信全球办公专网

# 专线服务等级协议(SLA)保障interface TenGigabitEthernet0/0/0
 description IPLC-HANOI-to-NANNING
 bandwidth 100000000  # 100Mbps独享带宽
 service-level end-to-end delay 40ms maximum   # 端到端时延保障
 service-level packet-loss-ratio 0.0001% maximum  # 丢包率保障
 service-level availability 99.99% minimum     # 可用性保障# QoS策略配置：生产数据优先class-map match-any PRODUCTION-DATA
 match protocol udp port 9000-9010  # 实时数据采集端口
 match dscp ef                      # 加速转发类policy-map IPLC-QOS
 class PRODUCTION-DATA
  priority percent 70               # 保证70%带宽
  police cir 70000000               # 承诺信息速率70Mbps
 class class-default
  bandwidth percent 30              # 剩余30%带宽

// UDT传输参数配置UDTSOCKET u = UDT::socket(AF_INET, SOCK_STREAM, 0);// 设置UDT参数UDT::setsockopt(u, 0, UDT_CC, new CCCFactory<CUDPBlast>, sizeof(CCCFactory<CUDPBlast>));UDT::setsockopt(u, 0, UDT_MSS, new int(1500), sizeof(int));UDT::setsockopt(u, 0, UDT_SNDBUF, new int(10000000), sizeof(int)); // 10MB发送缓冲区UDT::setsockopt(u, 0, UDP_SNDBUF, new int(10000000), sizeof(int));UDT::setsockopt(u, 0, UDT_RCVBUF, new int(10000000), sizeof(int)); // 10MB接收缓冲区UDT::setsockopt(u, 0, UDP_RCVBUF, new int(10000000), sizeof(int));// 启动UDT传输线程UDT::bind(u, (struct sockaddr*)&server_addr, sizeof(server_addr));UDT::listen(u, 10);

{
  "data": {
    "values": [
      {"metric": "质量数据完整性", "before": 72, "after": 99.8},
      {"metric": "追溯准确率", "before": 85, "after": 99.9},
      {"metric": "异常响应时间", "before": 45, "after": 8},
      {"metric": "客户投诉率", "before": 3.2, "after": 0.8}
    ]
  },
  "mark": "bar",
  "encoding": {
    "x": {"field": "metric", "type": "nominal", "axis": {"labelAngle": -45}},
    "y": {"field": "value", "type": "quantitative", "title": "百分比/小时"},
    "color": {"field": "type", "type": "nominal"}
  },
  "title": "质量管控指标改善对比"
}