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A recovery prototype based on network coding and software defined networks

Abstract:

This document presents a prototype that uses Network Coding as a tool for the recovery of lost packets in a butterfly network which is implemented using Software Defined Networking (SDN). The system is based on Ryu as the SDN controller; modules were developed for setting up the rules of the switches that structure the butterfly network, one without network coding and another for using it. Two complementary applications were developed, one for performing the tasks associated to network coding that requires generating new packets and the other for performing the necessary tasks to recover lost packets. Finally, the results of several tests performed using the prototype are presented and discussed and conclusions are drawn.