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Source-specific routing

Abstract : Source-specific (or source address-dependent) routing is a routing technique where routing decisions depend on both the source and the destination address of a packet. Source-specific routing solves some difficult problems related to multihoming, notably in edge networks, and is therefore a useful addition to the multihoming toolbox. In this paper, we describe the semantics of source-specific packet forwarding, and describe our implementation of a source-specific extension to the Babel routing protocol --- to our knowledge, the first complete implementation of source-specific routing ---, including a disambiguation algorithm that makes our implementation work over widely available networking APIs. We further discuss interoperability between ordinary next-hop and source-specific routing. Our implementation has seen a moderate amount of deployment, notably as a testbed for the IETF Homenet working group.
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Contributor : Matthieu Boutier <>
Submitted on : Tuesday, December 16, 2014 - 3:34:02 PM
Last modification on : Thursday, October 1, 2020 - 9:33:13 AM
Long-term archiving on: : Monday, March 23, 2015 - 2:15:38 PM


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  • HAL Id : hal-00947234, version 3
  • ARXIV : 1403.0445


Matthieu Boutier, Juliusz Chroboczek. Source-specific routing. 2014. ⟨hal-00947234v3⟩



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