We need kernel interposition over the network dataplane

Hugo Sadok, Zhipeng Zhao, Valerie Choung, Nirav Atre, Daniel S. Berger, James C. Hoe, Aurojit Panda, Justine Sherry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Kernel-bypass networking, which allows applications to circumvent the kernel and interface directly with NIC hardware, is one of the main tools for improving application network performance. However, allowing applications to circumvent the kernel makes it impossible to use tools (e.g., tcpdump) or impose policies (e.g., QoS and filters) that need to interpose on traffic sent by different applications running on a host. This makes maintainability and manageability a challenge for kernel-bypass applications. In response, we propose Kernel On-Path Interposition (KOPI), in which traditional kernel data-plane functionality is retained but implemented in a fully programmable SmartNIC. We hypothesize that KOPI can support the same tools and policies as the kernel stack while retaining the performance benefits of kernel bypass.

Original languageEnglish (US)
Title of host publicationHotOS 2021 - Proceedings of the 2021 Workshop on Hot Topics in Operating Systems
PublisherAssociation for Computing Machinery, Inc
Pages152-158
Number of pages7
ISBN (Electronic)9781450384384
DOIs
StatePublished - Jun 1 2021
Event18th Workshop on Hot Topics in Operating Systems, HotOS 2021 - Virtual, Online, United States
Duration: Jun 1 2021Jun 3 2021

Publication series

NameHotOS 2021 - Proceedings of the 2021 Workshop on Hot Topics in Operating Systems

Conference

Conference18th Workshop on Hot Topics in Operating Systems, HotOS 2021
Country/TerritoryUnited States
CityVirtual, Online
Period6/1/216/3/21

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Hardware and Architecture

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