Traffic engineering and routing in survivable multi-service networks

被引：0

作者：

Pasias, V ^{[1
]}

Karras, D ^{[1
]}

Papademetriou, RC ^{[1
]}

机构：

[1] Univ Portsmouth, Dept Elect & Comp Engn, Portsmouth, Hants, England

来源：

2004 INTERNATIONAL ZURICH SEMINAR ON COMMUNICATIONS: ACCESS-TRANSMISSION-NETWORKING, PROCEEDINGS | 2004年

关键词：

traffic engineering (TE); quality of service (QoS); routing; traffic trunk; best-effort (BE); protection; restoration; Integer Linear Programming (ILP);

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This paper presents a new framework for Traffic Engineering (TE) of primary and backup paths and routing of Quality of Service (QoS) and Best-Effort (BE) flows in multi-service backbone networks capable of surviving against single or multiple node and/or link failure(s). The aforementioned framework involves an off-line and an on-line phase. In the off-line phase either a method based on an Integer Linear Programming (ILP) TE problem or a method based on a heuristic TE algorithm provides the primary and the backup routes (where required) for the QoS-guaranteed flows and the routes for the BE flows. In the on-line phase the QoS and BE flows are routed based on the outputs of the off-line phase. In the case that one or more primary paths fail the corresponding backup paths are used for restoration. However, if one or more backup paths also fail or a backup path is not defined dynamic restoration is applied. Test results regarding the two off-line TE methods are presented.

引用

页码：48 / 51

页数：4

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