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Diamond-Miner: Comprehensive Discovery of the Internet's Topology Diamonds

Abstract : Despite the well-known existence of load-balanced forwarding paths in the Internet, current active topology Internet-wide mapping efforts are multipath agnostic-largely because of the probing volume and time required for existing multipath discovery techniques. This paper introduces D-Miner, a system that marries previous work on high-speed probing with multipath discovery to make Internet-wide topology mapping, inclusive of load-balanced paths, feasible. We deploy D-Miner and collect multiple IPv4 interface-level topology snapshots, where we find >64% more edges, and significantly more complex topologies relative to existing systems. We further scrutinize topological changes between snapshots and attribute forwarding differences not to routing or policy changes, but to load balancer "remapping" events. We precisely categorize remapping events and find that they are a much more frequent contributor of path changes than previously recognized. By making D-Miner and our collected Internet-wide topologies publicly available, we hope to help facilitate better understanding of the Internet's true structure and resilience.
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https://hal.archives-ouvertes.fr/hal-02493539
Contributor : Kevin Vermeulen <>
Submitted on : Thursday, February 27, 2020 - 8:51:58 PM
Last modification on : Thursday, March 5, 2020 - 1:16:54 AM

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  • HAL Id : hal-02493539, version 1

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Kevin Vermeulen, Justin Rohrer, Robert Beverly, Olivier Fourmaux, Timur Friedman. Diamond-Miner: Comprehensive Discovery of the Internet's Topology Diamonds. USENIX Symposium on Networked Systems Design and Implementation (NSDI) 2020, Feb 2020, Santa Clara, CA, United States. pp.479-493. ⟨hal-02493539⟩

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