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The hague rina-workshop-congestioncontrol-peyman

Congestion control in RINA

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The hague rina-workshop-congestioncontrol-peyman

  1. 1. Programmable Congestion Control Peyman Teymoori, University of Oslo SDN & OpenFlow World Congress, The Hague, October 2016
  2. 2. Congestion Control in the Internet • Problems with the Internet: – TCP scalability with: • The diameter of the network • The bottleneck link capacity • The number of flows – Different link types • One end-to-end controller! – Split-TCP (PEPs): • IPsec and SSL • Scalability with the number of flows • Processing delay at splitters – PEP-less solutions: • Again hacking! 2
  3. 3. The dream 3 Not by hacking/patching protocols/middleboxes/routers!
  4. 4. RINA Benefits • RINA’s benefits for congestion control: – breaking up the long control loop into shorter ones, – controlling flow aggregates , – deployment of arbitrary congestion controllers per DIF. • The benefits occur – just as the result of layering, – without changing a line of code in the mechanism itself, – without the side effects of Internet improvements (e.g. Split-TCP) – just by different DIF configurations 4
  5. 5. RINA Benefits • It’s a matter of configuration/policy! So, programmable… • Configuration: – Horizontal: Consecutive DIFs – Vertical: Stacked DIFs – Around: In-Network Resource Pooling • Policy: – Use of customized controllers per DIF 5
  6. 6. A Simulation Study 6
  7. 7. Current Status & Further Work • Developing a new congestion controller policy, called LGC: – based on the Logistic Growth function, – taking advantage of RINA’s flow aggregation, • The controller can be smoothed. – playing with it in different use cases, e.g. data center. • Evaluating multiple control loops. 7
  8. 8. Further information can be found here. Twitter@ictpristine www www.ict-pristine.eu <Thank you!>

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Congestion control in RINA

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