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arXiv · 1505.05646

A mechanized proof of loop freedom of the (untimed) AODV routing protocol

Timothy Bourke·Robert J. van Glabbeek·Peter Höfner
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Abstract

The Ad hoc On-demand Distance Vector (AODV) routing protocol allows the nodes in a Mobile Ad hoc Network (MANET) or a Wireless Mesh Network (WMN) to know where to forward data packets. Such a protocol is 'loop free' if it never leads to routing decisions that forward packets in circles. This paper describes the mechanization of an existing pen-and-paper proof of loop freedom of AODV in the interactive theorem prover Isabelle/HOL. The mechanization relies on a novel compositional approach for lifting invariants to networks of nodes. We exploit the mechanization to analyse several improvements of AODV and show that Isabelle/HOL can re-establish most proof obligations automatically and identify exactly the steps that are no longer valid.

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Timothy Bourke, Robert J. van Glabbeek, Peter Höfner. 2015-05-21. A mechanized proof of loop freedom of the (untimed) AODV routing protocol. https://doi.org/10.1007/978-3-319-11936-6_5

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