Enabling SDN on a special deployment of OpenStack

Emerging Software Defined Network (SDN) can improve many parameters such as programmability, manageability, scalability, reliability and agility in nowadays networks, Internet and also part of infrastructure Cloud systems and datacenters. In this paper, SDN technology on OpenStack platform and XenServer hypervisor has been implemented using OpenStack architecture without network node. Consequently, without using network node in OpenStack implementation is released its consumed resources. Therefore, due to network scalability a lot of resources are released using this approach. Moreover, in this work a module is proposed to manage network traffic and quality of service (QoS) optimization. This module checks servers´ traffic status and determines high traffic servers which can specify high traffic virtual machines (VMs) located on busy servers. High traffic VMs are limited or migrated to another server that is not busy. Limiting VM´s bandwidth is proposed in this work and VM´s migration will be presented in future work.