NDLI: Robust traffic engineering using l-balanced weight-settings in OSPF/IS-IS

Content Provider	IEEE Xplore Digital Library
Author	Abrahamsson, H. Bjorkman, M.
Copyright Year	2009
Description	Author affiliation: Swedish Institute of Computer Science, Box 1263, SE-164 29 Kista, Sweden (Abrahamsson, H.) \|\| Mälardalen University, Västerås, Sweden (Bjorkman, M.)
Abstract	Internet traffic volumes continue to grow at a great rate, now pushed by video and TV distribution in the networks. This brings up the need for traffic engineering mechanisms to better control the traffic. The objective of traffic engineering is to avoid congestion in the network and make good use of available resources by controlling and optimising the routing function. The challenge for traffic engineering in IP networks is to cope with the dynamics of Internet traffic demands. Today, the main alternative for intra-domain traffic engineering in IP networks is to use different methods for setting the weights in the routing protocols OSPF and IS-IS. In this paper we revisit the weight setting approach to traffic engineering but with focus on robustness. We propose l-balanced weight settings that route the traffic on the shortest paths possible but make sure that no link is utilised to more than a given level l. This gives efficient routing of traffic and controlled spare capacity to handle unpredictable changes in traffic. We present a heuristic search method for finding l-balanced weight settings and show that it works well in real network scenarios.
Starting Page	1
Ending Page	8
File Size	4532360
Page Count	8
File Format	PDF
ISBN	9789639799493
DOI	10.4108/ICST.BROADNETS2009.7184
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-14
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	ICST
Subject Keyword	Robustness Telecommunication traffic Communication system traffic control Routing Traffic control IP networks TV Search methods Thumb Data engineering
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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