基于流量工程的ECRP设计与实现

Design and Implementation of ECRP based on Traffic Engineering

对基于MPLS的流量工程进行了深入探讨与分析,并着重研究其关键技术:约束路由算法。主要包括以下几个方面:介绍MPLS技术的基本原理,并在此基础上分析了如何基于MPLS技术实现流量工程(MPLS TE);分析了当前的约束路由算法,提出了一种能用于某ATM交换机的增强型约束路由协议(Enhanced Constraint-based Routing Protocol,简称ECRP),它能够维护全网的拓扑及链路状态信息。从中选择满足用户约束条件的路由,使得整个网络在一定程度上达到流量均衡。

This text discussion and analysis the traffic engineering based on MPLS deeply,and research the key technology： constraints routing algorithm.This article includes the following aspects： The basic principle of MPLS technology,and analysis how to implement MPLS TE based on MPLS technology;Analysis the current constraints routing algorithm,and put forward a kind of Enhanced Constraint-based Routing Protocol（ECRP for short） using on a certain ATM switches,it can maintain the whole network topology and link state information,choose a routing which satisfied the user constraints condition,making the entire network to a certain balanced flow.