IP网络服务质量保证技术

现有的IP网络本身没有特别考虑对业务服务质量的保证技术,无法满足综合业务的应用。几年来,业界提出了一些针对IP网络的服务质量保证方法,但是并没有真正在现有网络中普及应用。随着下一代网络的提出,网络服务质量保证技术已经列为其核心技术,只有该技术得到解决,基于IP的下一代网络才能够满足电信级网络的要求。简要分析了服务质量的要素,梳理了服务质量保证的几个关键技术,并对这些技术的原理和特点进行了简要分析。

QoS Guarantee Techniques in IP Communication Networks

As QoS guarantee techniques have not been considered specially for current IP networks,applications of integrated services can not be satisfied.Some advices about QoS guarantee have been put forward in recent years,but are not applied widely in current networks.With the development of NGN,QoS guarantee is becoming its key technique.The IP network based on NGN could really satisfy telecommunications requirements,only if the solution has been found for this technique.In this paper,some factors of QoS are described,key QoS guarantee techniques are illustrated,and their principles and characteristics are simply analyzed.