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Cautious Weight Tuning for Link State Routing Protocols
Number of Authors: 2
2011 (English)Report (Other academic)
Abstract [en]

Link state routing protocols are widely used for intradomain routing in the Internet. These protocols are simple to administer and automatically update paths between sources and destinations when the topology changes. However, finding link weights that optimize network performance for a given traffic scenario is computationally hard. The situation is even more complex when the traffic is uncertain or time-varying. We present an efficient heuristic for finding link settings that give uniformly good performance also under large changes in the traffic. The heuristic combines efficient search techniques with a novel objective function. The objective function combines network performance with a cost of deviating from desirable features of robust link weight settings. Furthermore, we discuss why link weight optimization is insensitive to errors in estimated traffic data from link load measurements. We assess performance of our method using traffic data from an operational IP backbone.

Place, publisher, year, edition, pages
Kista, Sweden: Swedish Institute of Computer Science , 2011, 7.
SICS Technical Report, ISSN 1100-3154 ; 2011:01
National Category
Computer and Information Science
URN: urn:nbn:se:ri:diva-23797OAI: diva2:1042874
Available from: 2016-10-31 Created: 2016-10-31

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