The evolution of transport network survivability

被引：32

作者：

Manchester, J ^{[1
]}

Bonenfant, P ^{[1
]}

Newton, C ^{[1
]}

机构：

[1] Lucent Technol Bell Labs, Tech Strategy, Opt Networking Grp, Murray Hill, NJ 07974 USA

来源：

IEEE COMMUNICATIONS MAGAZINE | 1999年 / 37卷 / 08期

关键词：

D O I：

10.1109/35.783124

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The bandwidth explosion ushered in by the popularity of the Internet has spurred the recent acceleration in the development and deployment of equipment supporting packet-based services. This - coupled with the widespread deployment of dense wavelength-division multiplexed systems in the core transport network to satisfy the corresponding increase in capacity demand - has led network planners to reconsider traditional approaches to network survivability. Existing architectures for transport network survivability were developed based on a ubiquitous circuit-switched/TDM network paradigm. As tariffed services increasingly migrate from circuit-switched/rDM to packet-switched/DWDM networks, survivability architectures must also evolve to meet the service requirements of this "new" packet-switched/DWDM network paradigm. In this article we begin with an overview of existing strategies for providing transport network survivability, followed by an analysis of how the architectures for network survivability may evolve to satisfy the requirements of emerging networks.

引用

页码：44 / 51

页数：8