"The current interdomain routing protocol, BGP, is not resilient to a path failure due to its single-path and slowly-converging route calculation. This paper proposes a novel approach to improve the resilience of the interdomain communication by enabling a set of ASes to form an alliance for themselves," scientists writing in the journal Ieice Transactions on Communications report.
"The alliance members cooperatively discover a set of disjoint paths using not only the best routes advertised via BGP but also the ones unadvertised. Since such a set of disjoint paths are unlikely to share a link failure, a member AS can provide a pair of the other members with a transit to circumvent the failure. We evaluate how many disjoint paths we could discover from both advertised and hidden (unadvertised) routes by analyzing publicly available BGP route data," wrote Y. Hei and colleagues.
The researchers concluded: "Our feasibility study indicates that an alliance of ASes can establish a set of disjoint paths between arbitrary pair of its alliance members with high probability to improve the resilience of interdomain routing among the members."
Hei and colleagues published their study in Ieice Transactions on Communications (AS Alliance for Resilient Communication over the Internet. Ieice Transactions on Communications, 2010;E93B(10):2706-2714).
Additional information can be obtained by contacting Y. Hei, KDDI R&D Laboratories Inc., Fujimino 3568502, Japan.
The publisher of the journal Ieice Transactions on Communications can be contacted at: Ieice-Institute Electronics Information Communications Eng, Kikai-Shinko-Kaikan Bldg Minato-Ku Shibakoen 3 Chome, Tokyo, 105, Japan.
Keywords: Country:Japan, Networks, Routing Protocol, Telecommunications
This article was prepared by Network Weekly News editors from staff and other reports. Copyright 2011, Network Weekly News via VerticalNews.com.
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