一种在MPLS网络中支持QoS的流量工程算法

A Traffic Engineering Algorithm Supporting QoS in MPLS Networks

该文提出了一种改善QoS的队列调谐算法(QueueTuningAlgorithm:QTA),该算法应用于多协议标签交换(MPLS)流量工程。该算法通过把不同类别的业务,如传统的尽力而为(Best-Effort)业务和具有QoS需求的业务,映射到不同队列,然后根据链路的状况以及业务的QoS需求来进行队列调谐。QTA在实现负载均衡的同时又支持业务流的QoS,优化网络资源的利用。仿真表明该算法在MPLS网络中运行良好。

In this paper, a Queue Tuning Algorithm （QTA） supporting QoS for traffic engineering in Multiprotocol Label Switching（MPLS） networks is proposed. The algorithm aims at mapping different traffics, consisting of both best-effort traffic and traffic with QoS requirement, onto different queues while preserving the order of packets within a flow in traffic The algorithm supports QoS while realizing load balancing to optimize network resource utilization. Simulation indicates that the algorithm works well in MPLS networks.