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Preprints, Working Papers, ... Year : 2014

Source-sensitive routing

Matthieu Boutier
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  • PersonId : 931441
Juliusz Chroboczek
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  • PersonId : 927254


Source-sensitive routing is a routing technique where routing decisions are made according to both the source and the destination address of a packet. This is a slight refinement of ordinary next-hop routing, as used in the Global Internet, where packets are routed according to their destination only. Source-sensitive solves a number of difficult problems in multihomed edge networks as well as in the presence of tunnels. This paper describes our experience with the design and implementation of a source-sensitive extension to a distance-vector routing protocol (the Babel protocol). First, we define the behaviour of our source-sensitive routers, and show that mixing different behaviours in a single routing domain causes persistent routing loops. We then describe two implementation techniques for source-sensitive routing, and show how source-sensitive routers can interoperate with ordinary next-hop routers in a single routing domain. We conclude with experimental data obtained with our implementation.
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Dates and versions

hal-00947234 , version 1 (14-02-2014)
hal-00947234 , version 2 (20-11-2014)
hal-00947234 , version 3 (16-12-2014)
hal-00947234 , version 4 (24-03-2015)



Matthieu Boutier, Juliusz Chroboczek. Source-sensitive routing. 2014. ⟨hal-00947234v1⟩
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