Incentive-Compatible Interdomain Routing with Linear Utilities

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Abstract

We revisit the problem of incentive-compatible interdomain routing, examining the, quite realistic, special case in which the autonomous systems’ (ASes’) utilities are linear functions of the traffic in the incident links, and the traffic leaving each AS. We show that incentive-compatibility towards maximizing total welfare is achievable efficiently, and, in the uncapacitated case, by an algorithm that can be implemented by BGP, the standard protocol for interdomain routing.