Compare Routing Models of NGN

刘韶桦; 谢袆

doi:10.13992/j.cnki.tetas.2008.06.002

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Compare Routing Models of NGN

更新时间：2026-04-20

- Compare Routing Models of NGN
- Issue 6, Pages: 83-87(2008)
- 作者机构：
  
  南京邮电大学,南京,210003
- 作者简介：
- 基金信息：
- DOI：10.13992/j.cnki.tetas.2008.06.002
  CLC： TN915
- Published：2008
- 稿件说明：
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[1]刘韶桦,谢袆.NGN中路由配置方案的比较[J].电信工程技术与标准化,2008(06):83-87.

刘韶桦, 谢袆. Compare Routing Models of NGN[J]. 2008, (6): 83-87.
[1]刘韶桦,谢袆.NGN中路由配置方案的比较[J].电信工程技术与标准化,2008(06):83-87. DOI： 10.13992/j.cnki.tetas.2008.06.002.

刘韶桦, 谢袆. Compare Routing Models of NGN[J]. 2008, (6): 83-87. DOI： 10.13992/j.cnki.tetas.2008.06.002.

摘要

本文首先介绍NGN的基本概念和网络构架

接着介绍了软交换的概念和体系结构

然后针对目前NGN建设的现状

提出了NGN中的3种路由解决方案:平面软交换路由体系、层次化的软交换路由体系和服务器定位方案

并对这3种方案的优劣进行比较分析

平面软交换路由结构简单

建设成本低

因此在网络运营的初期

可以采用该方式

当网络规模扩大到一定程度

就需要采用分级的路由结构。层次化软交换路由体系中

软交换机根据呼叫信令进行逐跳路由

因此呼叫接续时延较大

但这一方案比较成熟

LS路由则是呼叫信令直接在起始和目的软交换机之间传递并处理

但相对前者成熟度不高。本文的一个重点是介绍TRIP的概念

因为它将是NGN的标准路由协议。

Abstract

This paper outlines the concept and architecture of NGN and softswitch.And then presents three routing models of NGN according the current cases of NGN:no interoperability between softswitches

interoperability between softswitches and local server.The architecture of plain network is simple

so it is a very popular business model in the initial stage of NGN.With the development of NGN

interoperability between softswitches becomes more and more popular.For softswitches

any single call must pass though multiple switches to its destination by some definitely rules

so there will be a long time delay to establish a call.However

LS routing can send a call directly from initial softswitch to the destination.One of the key aspects is the introduction to the concept of TRIP

which can be the standard routing protocol in NGN.

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