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Abstract

International audience; The present paper proposes a novel method for computing inter-domain paths subject to multiple independent additive constraints in MPLS-TE networks. An efficient solution to this problem is a key element for providing services with guaranteed performance across domain boundaries. However, the inherent hardness of the multi-constrained path computation as well as inter-domain scalability and security constraints complicate the computation problem. We propose a novel algorithm named kID-MCP that tackles the computational complexity of the problem by reducing the number of paths included in the computation process. kID-MCP is compatible with existing techniques and fulfills the security requirements. We undergo a complexity analysis that shows that kID-MCP scales well. Moreover, a simulation study reveals that kID-MCP finds a solution in most situations. These results indicate that the computation of inter-domain multi-constrained paths is tractable in practice, which opens interesting perspectives for QoS routing and traffic engineering among multiple operators.


Original document

The different versions of the original document can be found in:

http://dx.doi.org/10.1109/ngi.2009.5175757
https://hal.archives-ouvertes.fr/hal-00424319,
https://dblp.uni-trier.de/db/conf/ngi/ngi2009.html#BertrandLTM09,
https://academic.microsoft.com/#/detail/2115074685
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Document information

Published on 01/01/2009

Volume 2009, 2009
DOI: 10.1109/ngi.2009.5175757
Licence: CC BY-NC-SA license

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