Site-to-site internet traffic control

Frank Cangialosi, Akshay Narayan, Prateesh Goyal, Radhika Mittal, Mohammad Alizadeh, Hari Balakrishnan

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


Queues allow network operators to control traffic: where queues build, they can enforce scheduling and shaping policies. In the Internet today, however, there is a mismatch between where queues build and where control is most effectively enforced; queues build at bottleneck links that are often not under the control of the data sender. To resolve this mismatch, we propose a new kind of middlebox, called Bundler. Bundler uses a novel inner control loop between a sendbox (in the sender's site) and a receivebox (in the receiver's site) to determine the aggregate rate for the bundle, leaving the end-to-end connections and their control loops intact. Enforcing this sending rate ensures that bottleneck queues that would have built up from the bundle's packets now shift from the bottleneck to the sendbox. This enables the sendbox to exercise control over its traffic by scheduling packets according to any policy necessary to achieve the network operator's higher-level objectives. We have implemented Bundler in Linux and evaluated it with real-world and emulation experiments. We find that Bundler allows the sender-chosen policy to be effective: when configured to implement Stochastic Fairness Queueing (SFQ), it improves median flow completion time (FCT) by between 28% and 97% across various scenarios.

Original languageEnglish (US)
Title of host publicationEuroSys 2021 - Proceedings of the 16th European Conference on Computer Systems
PublisherAssociation for Computing Machinery
Number of pages16
ISBN (Electronic)9781450383349
StatePublished - Apr 21 2021
Event16th European Conference on Computer Systems, EuroSys 2021 - Virtual, Online, United Kingdom
Duration: Apr 26 2021Apr 28 2021

Publication series

NameEuroSys 2021 - Proceedings of the 16th European Conference on Computer Systems


Conference16th European Conference on Computer Systems, EuroSys 2021
Country/TerritoryUnited Kingdom
CityVirtual, Online

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Hardware and Architecture


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