An Optimal Path Computation Architecture for the Cloud-Network on Software-Defined Networking

Abstract

Legacy networks do not open the precise information of the network domain because of scalability, management and commercial reasons, and it is very hard to compute an optimal path to the destination. According to today's ICT environment change, in order to meet the new network requirements, the concept of software-defined networking (SDN) has been developed as a technological alternative to overcome the limitations of the legacy network structure and to introduce innovative concepts. The purpose of this paper is to propose the application that calculates the optimal paths for general data transmission and real-time audio/video transmission, which consist of the major services of the National Research & Education Network (NREN) in the SDN environment. The proposed SDN routing computation (SRC) application is designed and applied in a multi-domain network for the efficient use of resources, selection of the optimal path between the multi-domains and optimal establishment of end-to-end connections.

Software Defined Cloud Mini Data Centers – An Effort towards Reduction in Latency of Cloud Traffic Delivery

“…We suggest Backward Recursive Path Method for path computation among source to destination. In Backward Recursive path technique the path computation is based on all paths between the domains and the path computation in neighboring domain including the destination [6]. Here the module that calculates optimal path plays a key role.…”

“…Here the module that calculates optimal path plays a key role. This path computing module of controller can support in calculating topology based network path [6]. Here, the path computation starts from source domain, as shown in Figure below, and the neighboring Path Computing modules of controller are notified of the group of available paths.…”