DORA: Efficient Routing for MPLS Traffic Engineering

被引:45
作者
Boutaba R. [1 ,2 ]
Szeto W. [1 ]
Iraqi Y. [1 ]
机构
[1] Department of Computer Science, University of Waterloo, Waterloo
[2] Department of Computer Science, University of Waterloo, Waterloo, Ont. N2L 3G1
基金
加拿大自然科学与工程研究理事会;
关键词
Constraint-based routing; MPLS; Traffic engineering;
D O I
10.1023/A:1019810526535
中图分类号
学科分类号
摘要
This paper introduces DORA, a dynamic online routing algorithm for construction of bandwidth guaranteed paths in MPLS-enabled networks. The main objective of DORA is to place paths with reserved bandwidth evenly across the network in order to allow more future paths to be accepted into the network and to balance the traffic load. During path computation, the key operation in DORA is to avoid routing over links that (1) have high potential to be part of any other path, and (2) have low residual bandwidth available. Our simulation results based on unsuccessful path-setup ratio and successful path-reroutes upon link failure, show that DORA offers better performance than some sophisticated algorithms, while at the same time being less computationally expensive.
引用
收藏
页码:309 / 325
页数:16
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