Mobility

Get Off My Prefix! the Need for Dynamic, Gerontocratic Policies in Inter-Domain Routing

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Executive Summary

Inter-domain routing in today's Internet is plagued by security and reliability issues (e.g., prefix hijacking), which are often caused by malicious or Byzantine misbehavior. The authors argue that route selection policies must move beyond static preferences that select routes on the basis of static attributes such as route length or which neighboring AS is advertising the route. They prove that route convergence in the presence of Byzantine misbehavior requires that the route selection metric include the dynamics of route updates as a primary component. They then describe a class of simple dynamic policies which consider the observed "Ages" of routes.

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