Cost-effective capacity provisioning in wide area networks with Shoofly

Rachee Singh, Nikolaj Bjorner, Sharon Shoham, Yawei Yin, John Arnold, Jamie Gaudette

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

In this work we propose Shoofly, a network design tool that minimizes hardware costs of provisioning long-haul capacity by optically bypassing network hops where conversion of signals from optical to electrical domain is unnecessary and uneconomical. Shoofly leverages optical signal quality and traffic demand telemetry from a large commercial cloud provider to identify optical bypasses in the cloud WAN that reduce the hardware cost of long-haul capacity by 40%. A key challenge is that optical bypasses cause signals to travel longer distances on fiber before re-generation, potentially reducing link capacities and resilience to optical link failures. Despite these challenges, Shoofly provisions bypass-enabled topologies that meet 8X the present-day demands using existing network hardware. Even under aggressive stochastic and deterministic link failure scenarios, these topologies save 32% of the cost of long-haul capacity.

Original languageEnglish
Title of host publicationSIGCOMM 2021 - Proceedings of the ACM SIGCOMM 2021 Conference
PublisherAssociation for Computing Machinery, Inc
Pages534-546
Number of pages13
ISBN (Electronic)9781450383837
DOIs
StatePublished - 9 Aug 2021
Event2021 Annual Conference of the ACM Special Interest Group on Data Communication on the Applications, SIGCOMM 2021 - Virtual, Online, United States
Duration: 23 Aug 202127 Aug 2021

Publication series

NameSIGCOMM 2021 - Proceedings of the ACM SIGCOMM 2021 Conference

Conference

Conference2021 Annual Conference of the ACM Special Interest Group on Data Communication on the Applications, SIGCOMM 2021
Country/TerritoryUnited States
CityVirtual, Online
Period23/08/2127/08/21

Keywords

  • backbone design
  • optical bypass
  • traffic engineering

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