分段路由网络研究及其在流量工程中的应用

Study on segment routing network and its application in traffic engineering

分段路由网络是对IP路由技术的继承和创新,在实现网络虚拟化、快速重路由、网络可编程、负载均衡和流量工程等方面具有独特优势。深入研究了分段路由的实现机制,全面介绍和剖析了IGP和BGP支持分段路由网络的协议扩展,探讨了分段路由在运营商网络中典型应用场景的流量工程实现。随着技术的成熟和标准的完善,分段路由网络将具有广阔的应用前景。

Segment routing network is the inheritance and innovation of IP routing technology, which has manyunique advantages in the realization of network virtualization, fast re-routing, network programming, load balancingand traffic engineering, and so on. Segment routing mechanism was studied in depth, and the protocol extensions ofinterior gateway protocols （IGP） and border gateway protocol （BGP） for segment routing were introduced andanalyzed in detail. Furthermore, the realization of traffic engineering for segment routing in typical applicationscenarios of the operator networks was explored. With the maturity of technology and standardization, segmentrouting network will promise to have broad application prospects.