Roteador SDN em hardware independente de protocolo com análise, casamento e ações dinâmicas

• Racyus D. G. Pacífico UFMG
• Gerferson R. Coelho UFV
• Marcos A. M. Vieira UFMG
• José A. M. Nacif UFV

DOI: https://doi.org/10.5753/sbrc.2018.2431

Abstract

The OpenFlow standard is the most used solution in SDN, separating the data plane from the control plane and using a limited set of fields and actions. However, OpenFlow does not allow to include new fields outside the specification, making it difficult to adopt new protocols and services. In this work, we propose a hardware-implemented SDN router that enables the use of dynamically defined new fields and protocols, without the need to recompile or restart the router when the user changes, at run time, how the flows should be processed. In addition, our system enables the processing of protocol-independent SDN network flows using eBPF instructions generated from C or P4 language programs created by the user. Our prototype was instrumented on the NetFPGA platform. Our results show that the system allows to change parsings, matchings, and actions at run time with zero downtime.

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