Intra and inter-flow link aggregation in SDN

Ronaldo R. R. Junior (), Marcos A. M. Vieira (), Luiz F. M. Vieira () and Antonio A. F. Loureiro ()
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Ronaldo R. R. Junior: Universidade Federal de Minas Gerais
Marcos A. M. Vieira: Universidade Federal de Minas Gerais
Luiz F. M. Vieira: Universidade Federal de Minas Gerais
Antonio A. F. Loureiro: Universidade Federal de Minas Gerais

Telecommunication Systems: Modelling, Analysis, Design and Management, 2022, vol. 79, issue 1, No 8, 95-107

Abstract: Abstract Link saturation is a problem in computer networks. We propose a link aggregation solution that is robust and solves this problem. The approach consists of creating a virtual link by combining multiple physical interfaces, summing up their bandwidth. Besides increasing the data transmission throughput, this type of solution enables a fast and clear repair in the case of link unavailability. Since Software-Defined Networking usage is increasing daily in business scenarios, this work demonstrates a way to create link aggregation in such situations. This led to the improvement of services availability, among many advantages. To achieve that, we defined and implemented a system with self-adaptive link aggregation. We study the intra-flow and inter-flow link aggregation. To evaluate the implementation, we created three algorithms under different conditions: Virtual Round-Robin, Traffic Analysis, and Hash Table. We evaluated the three algorithms in real-world and virtual scenarios. We used the Ryu controller and, for packet switching, the OVS (Open vSwitch) and BPFabric. Virtual Round-Robin achieved 95% of fairness and Hash Table provided higher throughput.

Keywords: Software defined networking; Link aggregation; LACP; Computer networks; Communication systems (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s11235-021-00841-7

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