A SDN/Openflow Framework for Dynamic Resource Allocation based on Bandwidth Allocation Model

Abstract

The communication network context in actual systems like 5G, cloud and IoT, present an ever-increasing number of users, applications and services that are highly distributed with distinct and heterogeneous communications requirements (SLA, QoS, QoE). Resource allocation in this context requires dynamic, efficient and customized solutions and Bandwidth Allocation Models (BAMs) are an alternative to support this new trend. This paper proposes and evaluates the BAMSDN framework that dynamically allocates resources (bandwidth) for a MPLS network using a SDN/Openflow strategy with BAM. The efficacy of the framework in terms of dynamic resource allocation, flexibility of resource sharing, blocking rate and preemption performance metrics are evaluated. Experimental results indicate that using SDN/Openflow with BAM for resource allocation does have effective advantages for networks requiring flexible resource sharing among applications and facilitates the migration path to a SDN/Openflow network.