Low-latency Packet Parsing in Software Defined Networks

Hesam Zolfaghari, Davide Rossi, Jari Nurmi

    Tutkimustuotos: KonferenssiartikkeliTieteellinenvertaisarvioitu

    6 Sitaatiot (Scopus)
    68 Lataukset (Pure)

    Abstrakti

    Packet parsing is the first step in processing of packets in devices such as switches and routers. In this paper, we present a totally new program control unit as well as further enhancements for a recently designed packet parser architecture which can parse headers of most commonly used protocols such as Ethernet, IPv4, IPv6 and TCP in a time window shorter than 10 nanoseconds. However, when it comes to parsing variable-length headers and multiple stacked headers, it deviates from its maximum throughput due to inefficiencies in its program control logic. We have designed and employed a more advanced program control logic that improves parsing time of variable length headers such as IPv4 header by up to 48 percent and parsing time of typical header stacks used on the Internet by 16 to 21.42 percent. Our solution can sustain aggregate throughput of 640 Gbps while requiring only 30 percent of the number of gates used in the parser used in the Reconfigurable Match Tables architecture.
    AlkuperäiskieliEnglanti
    Otsikko2018 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC)
    KustantajaIEEE
    ISBN (elektroninen)978-1-5386-7656-1
    DOI - pysyväislinkit
    TilaJulkaistu - 13 jouluk. 2018
    OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
    TapahtumaIEEE Nordic Circuits and Systems Conference - Tallinn, Viro
    Kesto: 30 lokak. 201831 lokak. 2018

    Conference

    ConferenceIEEE Nordic Circuits and Systems Conference
    LyhennettäNorCAS 2018
    Maa/AlueViro
    KaupunkiTallinn
    Ajanjakso30/10/1831/10/18

    Julkaisufoorumi-taso

    • Jufo-taso 1

    !!ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Computer Networks and Communications

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