基于流量工程的ECRP设计与实现

摘要

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.