Securing BGP — A Literature Survey

Securing BGP — A Literature Survey,10.1109/SURV.2011.041010.00041,IEEE Communications Surveys and Tutorials,Geoff Huston,Mattia Rossi,Grenville Armita

Securing BGP — A Literature Survey   (Citations: 3)
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HE INTERNET is a decentralised collection of interconnected component networks. These networks are composed of end hosts (who originate and/or receive IP packets, and are identified by IP addresses) and active forwarding elements (routers) whose role is to pass IP packets through the network. The routing system is responsible for propagating the relative location of addresses to each routing element, so that routers can make consistent and optimal routing decisions in order to pass a packet from its source to its destination. Routing protocols are used to perform this information propagation. The Internet’s current routing system is divided into a twolevel hierarchy. At one level is intra-domain routing, used by the set of autonomous routing systems operating within each component network. At the other level is a single interdomain routing system that maintains the inter-autonomous system connectivity information that straddles these component networks. A single inter-domain routing protocol, the Border Gateway Protocol (BGP) [1], has provided interdomain routing services for the Internet’s disparate component networks since the late 1980’s [2]. Given the central role of routing in the operation of the Internet, BGP is one of the critical protocols that provide security and stability to the Internet [3]. BGP’s underlying distributed distance vector computations rely heavily on informal trust models associated with information propagation to produce reliable and correct results. It can be likened to a hearsay network — information is flooded across a network as a series of point-to-point exchanges, with the information being incrementally modified each time it is exchanged between BGP speakers. The design of BGP was undertaken in the relatively homogeneous and mutually trusting environment of the early Internet. Consequently, its
Journal: IEEE Communications Surveys and Tutorials - COMSUR , vol. 13, no. 2, pp. 199-222, 2011
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