Quality of Service Sensitive Routing for Software Defined Network Using Segment Routing
Ohmmar Min Mon, Myat Thida Mon · 2018
Communication networks are growing in size at an increasing rate with the traditional network. Quality of Service (QoS) is needed for new applications and new services on the Internet. Software Defined Network (SDN) techniques are appeared to be more flexible and programmable network. By utilizing the characteristics of SDN, this paper proposes QoS sensitive routing for available bandwidth by using segment routing (SR) to find the best path according to the QoS requirements. This paper focuses on monitoring of flow entries among switches and finding the feasible path over QoS-based routing scheme. To provide network throughput to the end hosts, the available bandwidth has to be accomplished. The routing algorithm finds the path which is feasible to meet the desired QoS of data flows. If the required QoS cannot provide to the requested flow, the controller determines how to calculate depending on the request from the switch. If the initial path will not be able to achieve the available bandwidth, the algorithm reroutes the higher bandwidth flow. This paper suggests improvements in QoS using Open Network Operating System (ONOS) controller with OpenFlow protocol and the simulation experiments with effective QoS are suitable for the future internet using SDN.