Secondly, based on the introduction of IGP, wrap model, and integration model, this thesis introduces the concept and advantages of MPLS traffic engineering.

• 对MPLS的几种信令也作了介绍和比较分析。 接着又从对传统的流量工程技术IGP、重叠模型和集成模型的介绍引出MPLS流量工程的概念和优势。