Provisioning a Virtual Private Network: A network design problem for multicommodity flow

DMCA

Provisioning a Virtual Private Network: A network design problem for multicommodity flow (2001)

Cached

Download Links

Other Repositories/Bibliography

DBLP

by Anupam Gupta , Jon Kleinberg , Amit Kumar , Rajeev Rastogi , Bulent Yener

Venue:	In Proceedings of the 33rd Annual ACM Symposium on Theory of Computing
Citations:	109 - 13 self

BibTeX

@INPROCEEDINGS{Gupta01provisioninga,
    author = {Anupam Gupta and Jon Kleinberg and Amit Kumar and Rajeev Rastogi and Bulent Yener},
    title = {Provisioning a Virtual Private Network: A network design problem for multicommodity flow},
    booktitle = {In Proceedings of the 33rd Annual ACM Symposium on Theory of Computing},
    year = {2001},
    pages = {389--398}
}

OpenURL

Abstract

Consider a setting in which a group of nodes, situated in a large underlying network, wishes to reserve bandwidth on which to support communication. Virtual private networks (VPNs) are services that support such a construct; rather than building a new physical network on the group of nodes that must be connected, bandwidth in the underlying network is reserved for communication within the group, forming a virtual “sub-network.” Provisioning a virtual private network over a set of terminals gives rise to the following general network design problem. We have bounds on the cumulative amount of traffic each terminal can send and receive; we must choose a path for each pair of terminals, and a bandwidth allocation for each edge of the network, so that any traffic matrix consistent with the given upper bounds can be feasibly routed. Thus, we are seeking to design a network that can support a continuum of possible traffic scenarios. We provide optimal and approximate algorithms for several variants of this problem, depending on whether the traffic matrix is required to be symmetric, and on whether the designed network is required to be a tree (a natural constraint in a number of basic applications). We also establish a relation between this collection of network design problems and a variant of the facility location problem introduced by Karger and Minkoff; we extend their results by providing a stronger approximation algorithm for this latter problem. 1

Keyphrases

virtual private network network design problem multicommodity flow several variant possible traffic scenario facility location problem approximate algorithm cumulative amount traffic matrix consistent underlying network natural constraint upper bound large underlying network general network design problem traffic matrix bandwidth allocation basic application latter problem approximation algorithm new physical network virtual sub-network

DMCA