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Detecting hidden broken pieces of the Internet : BGP lies, forwarding detours and failed IXPs

Abstract : The objective of this thesis is to detect hidden broken pieces of the Internet. First, we study the deployment of Internet exchange points (IXPs) in Latin America and find that while some IXPs across the region have managed to proliferate, some countries have failed IXPs, i.e., no IXP at all, or the IXP has not succeeded to attract members. Second, we focus on the border gateway protocol (BGP), the routing protocol used on the Internet, and study whether ASes carry on BGP lies, i.e., if the forwarding routes through which packets actually flow on the Internet diverge from the AS-paths that ASes advertise on BGP. Wefind cases where the paths indeed mismatch. Finally, we study how traffic flows inside ASes and focus on the detection of forwarding detours, i.e., cases in which the forward ingroutes do not match the best available routes, according to the internal gateway protocol(IGP) in use. We reveal such forwarding detours in multiple ASes
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https://tel.archives-ouvertes.fr/tel-03198502
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Submitted on : Wednesday, April 21, 2021 - 10:44:08 AM
Last modification on : Tuesday, April 27, 2021 - 11:56:07 AM

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  • HAL Id : tel-03198502, version 1

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Julian Martin del Fiore. Detecting hidden broken pieces of the Internet : BGP lies, forwarding detours and failed IXPs. Networking and Internet Architecture [cs.NI]. Université de Strasbourg, 2021. English. ⟨NNT : 2021STRAD001⟩. ⟨tel-03198502⟩

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