# QoS-aware Energy-Efficient Algorithms for Ethernet Link Aggregates in Software-Defined Networks

## TL;DR

This paper presents energy-efficient algorithms for Ethernet link aggregation in SDN, balancing energy savings with real-time traffic requirements through innovative ONOS application solutions.

## Contribution

It introduces novel algorithms and an ONOS application that optimize energy use in Ethernet link aggregates while ensuring quality of service for time-sensitive traffic.

## Key findings

- Energy-efficient algorithms reduce overall power consumption.
- The solutions maintain low latency for real-time traffic.
- Energy savings are effective when real-time traffic share is moderate.

## Abstract

In this paper we discuss the implementation of an ONOS application that leverages Energy-Efficient Ethernet links between a pair of switches and shares incoming traffic among the link in the way that minimizes overall energy usage. As the straightforward solution can result in excessive traffic delay, we provide two alternative solutions to meet the demands of real time traffic arriving to the link aggregate. Experimental results show that our final application can keep low energy usage while meeting the demands of time-sensitive traffic, as long as the latter does not represent an excessive share of traffic demand.