感知区分服务的MPLS流量工程技术研究  

Technique Research On Diffsevr-aware MPLS Traffic Engnineering

作　　者：杜志璟[1] 侯韶华[1] 

机构地区：[1]南京邮电大学,南京210003

出　　处：《现代传输》2006年第4期65-69,共5页Modern Transmission

摘　　要：区分服务(Diffsevr)通过服务分级定义了流量的逐跳行为(PHB);流量工程(Traffic Engnineering)实现转发路径的优化。感知区分服务的MPLS流量工程(Diffsevr-aware MPLS Traffic Engnineering,简称DS-TE)将MPLS的区分服务与流量工程结合在一起,使其能够感知彼此的存在。DS-TE提出了基于类的资源分配思想,可以根据业务的类型,细粒度地建立交换路径,进一步保证了QoS。Diffsevr classifies the classes of service to define the Per-Hop-Behavior of traffic; while Traffic Engnineering optimizes the forwarding paths. Diffsevr-aware MPLS Traffic Engnineering combines the MPLS Diffsevr and Traffic Engnineering. So they are aware of the existence of each other. Diffsevr-aware Traffic Engnineering（DS- TE） introduces the concept of class-based resource allocation, which sets up fine granularity switching paths to further guarantee the quality of service, according to the classes of service.

关 键 词：MPLS 流量工程 区分服务 DS-TE QOS 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]