DeltaPath: dataflow-based high-performance incremental routing

21 Aug 2018  ·  Dimitrova Desislava, Liagouris John, Wicki Sebastian, Hoffmann Moritz, Kalavri Vasiliki, Roscoe Timothy ·

Routing controllers must react quickly to failures, reconfigurations and workload or policy changes, to ensure service performance and cost-efficient network operation. We propose a general execution model which views routing as an incremental data-parallel computation on a graph-based network model plus a continuous stream of network changes... Our approach supports different routing objectives with only minor re-configuration of its core algorithm, and easily accomodates dynamic user-defined routing policies. Moreover, our prototype demonstrates excellent performance: on Google Jupiter topology it reacts with a median time of 350ms to link failures and serves more than two million path requests per second each with latency under 1ms. This is three orders-of-magnitude faster than the popular ONOS open-source SDN controller. read more

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Networking and Internet Architecture

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