Optimizing Rules Placement in OpenFlow networks: Trading routing - - PowerPoint PPT Presentation

Optimizing Rules Placement in OpenFlow networks: Trading routing for better efficiency

NGUYEN Xuan-Nam, Damien Saucez, Chadi Barakat, Thierry Turletti DIANA – INRIA Sophia Antipolis, France

Motivation

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Manual configuration, Complicated, Error prone Blackbox: Abstraction, High-level policies

Today With SDN/OpenFlow

OpenFlow Rules Placement Problem

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Recent solutions: Network-wide Optimization Endpoint policy OpenFlow Rules Policies

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Place rules along each path Pre-defined paths Challenge: Memory limitation

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Routing policy

Match Port Default South East Match Port Default East Match Port Default East

Trading routing for better efficiency

• Loose routing policy: no loops, no memory and link overload

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E

OF1

Controller

OF4 OF2 OF3

I F

Match Port Default East Match Port F North East Default South East Match Port F North East Default East Match Port F North Default East

Our Methodology

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ILP model OpenFlow Rules Endpoint policy Loose routing policy Outperform existing solutions in memory-constrainted networks Memory, Link constraints

Thank you !

xuan-nam.nguyen@inria.fr

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