Research on new network architecture through SD-WAN

Abstract

Today society and many organizations use the internet which is interconnects the people around the world. This internet uses the traditional Wide Area Network architecture. The traditional WAN requires a single provider to access many sites which does allow the sites for direct access to cloud resources, inflexible and these are had unpredictable performance. To overcome these problems SD-WAN architecture introduced based on SDN technology. SD-WAN had dynamic multi-path selection and cloud optimized functionalities. These functionalities are providing improved performance and fault tolerance. The implementation of SD-WAN in inter autonomous systems with Cloud Computing allows virtualization on the network architecture with provisioning and de-provisioning of resources on demand,so it is becoming new era of service by Cloud Computing named as Network as a Service (NaaS). Recently the telecom services started the NaaS to their subscribers to avoid the more use of physical network. Due to present network traffic demands SD-WAN needs dynamic network controls, optimal path selections, Forward error controls and secure transmission. In this article we discuss about SD-WAN design issues, transmission control and possible integrated architecture.we also present the functional process of RESTful API on SD-WAN with program fragments.