NDLI: A scalable heuristic for hybrid IGP/MPLS traffic engineering

Content Provider	IEEE Xplore Digital Library
Author	Skivee, F. Balon, S. Leduc, G.
Copyright Year	2006
Description	Author affiliation: EECS Dept., Liege Univ. (Skivee, F.; Balon, S.; Leduc, G.)
Abstract	In current IP networks, a classical way to achieve traffic engineering is to optimise the link metrics. This operation cannot be done too often and can affect the route of a lot of traffic. Multiprotocol label switching (MPLS) opens new possibilities to address the limitations of IP systems concerning traffic engineering thanks to explicit label-switched paths (LSPs). This paper proposes a new method based on simulated annealing meta-heuristic to compute a set of LSPs that optimise a given operational objective. The hybrid IGP/MPLS approach takes advantage of both IP and MPLS technologies and provides a flexible method to traffic engineer a network on a day to day basis. We illustrate the capabilities of our method with some simulations and a comparison with other techniques on an existing operational network. The results obtained by setting up a small number of LSPs are nearly optimal and better than by engineering the IGP weights. Moreover, although it could be combined with a static setting of the latter, SAMTE alone gives already the same results as this combination in much less CPU time, which thus allows an administrator to keep its initial and meaningful IGP metrics in his network
Starting Page	1
Ending Page	6
File Size	7321527
Page Count	6
File Format	PDF
ISBN	0780397460
ISSN	15566463
DOI	10.1109/ICON.2006.302621
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-13
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiprotocol label switching Telecommunication traffic Traffic control IP networks Routing Simulated annealing Communication system traffic control Computational modeling Systems engineering and theory Optimization methods hybrid IP/MPLS Traffic Engineering MPLS Simulated Annealing TOTEM
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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