感知区分服务的MPLS流量工程技术研究

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。

Technique Research On Diffsevr-aware MPLS Traffic Engnineering

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.