Research on Bearer Network of Dual-Homed Soft-Switch System

2017 International Conference on Network and Information Systems for Computers (ICNISC) Pub Date : 2017-04-01 DOI:10.1109/ICNISC.2017.00010

Yun Lan, Yong Sun, Sheng-peng Liu, Qian Zhang

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Abstract

Dual-homed soft-switch network has special interaction requirements in signaling flow, media flow, maintenance flow and billing flow based on Huawei softswitch in ATCA platform. In order to realize geographical redundancy for two telephone bureaus, A and B, the bearer network was designed. Through the way of dividing OSPF area, route aggregation, cost allocation and other related technologies the regional link state information is isolated. The regional summary routing entries of the backbone is reduced from 43 to 4. It greatly reduces the probability of inter-regional LSA flooding and the risk of global recalculation caused by route changes in a single area. Then, the traffic management model was designed. Through the access control, priority remarking and rate limiting technology, the purpose of restricting illegal traffic entering the network, controlling traffic and avoiding network congestion is achieved. The reliability, controllability and security of the bearer network are verified by the network connectivity test, the interrupt routing check and the illegal traffic test.

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双主软交换系统承载网的研究

双主软交换网络在ATCA平台上基于华为软交换，在信令流、媒体流、维护流、计费流等方面有特殊的交互需求。为了实现A、B两个电话局的地理冗余，设计了承载网。通过划分OSPF区域、路由聚合、费用分摊等相关技术，实现了区域间链路状态信息的隔离。骨干网的区域聚合路由表项由43个减少到4个。它大大降低了区域间LSA泛洪的概率和单个区域内路由变化引起全局重新计算的风险。然后，设计了交通管理模型。通过接入控制、优先级备注和限速技术，达到限制非法流量进入网络，控制流量，避免网络拥塞的目的。通过网络连通性测试、中断路由检查和非法流量测试，验证了承载网络的可靠性、可控性和安全性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2017 International Conference on Network and Information Systems for Computers (ICNISC)

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