SDN has been envisioned as the next generation network paradigm by decoupling control plane and data plane, such that network management and optimization can be conducted in a centralized manner using global network information. In this article, we study how to apply SDN concept to a wireless meshnetwork that has been widely adopted by various applications. We first propose a novel architecture…
Category: OMNET++ PROJECT CENTER IN CHENNAI
EXR: Greening Data Center Network with Software Defined Exclusive Routing
The explosive expansion of data center sizes aggravates the power consumption and carbon footprint, which has restricted the sustainable growth of cloud services and seriously troubled data center operators. In recent years, plenty of advanced data center network architectures have been proposed. They usually employ richly-connected topologies and multi-path routing to provide high networkcapacity. Unfortunately, they also undergo…
Control-plane slicing methods in multi-tenant software defined networks
In this paper, we focused on two prevailing architectural approaches for control-plane virtualization in multi-tenant OpenFlow-ready SDN domains: The first permits the delegation of a specific, non-overlapping part of the overall flowspace to each tenant OpenFlow controller, exposing him/her the entire substrate topology; the second conceals the substrate topology to tenants by abstracting resources and…
Active probing assisted monitoring for software defined networks
Efficient and agile control-plane design is crucial for emerging flexible, on-demand optical networks. Active probing assisted monitoring is proposed and shown to reduce monitoring time by around 75% to achieve rapid monitoring in optical networks.
Demonstrating a software defined network (SDN) using Carrier Ethernet Switch Routers in a provider network
We demonstrate SDN in a service provider network using adapted Carrier Ethernet Switch Routers developed based on principles of segment routing. SDN based service composition and delivery is showcased and validated.
Software defined network for multi-tenancy resource sharing in backhaul networks
This paper introduces a Software Defined Network (SDN) architecture for 5G dense multi-infrastructure provider deployed wireless backhaul networks. The architecture contains a two-tier controller in a hierarchical setup aiming to offload some of the control functionalities from the central controller to a collection of logically distributed dynamically configured local controllers in order to balance the tradeoff between scalability and system…
SoftNet: A software defined decentralized mobile network architecture toward 5G
Mobile cloud computing and other new emerging communication paradigms such as mobile socialnetworking and Internet-of-Things, have brought challenges in flexibility, efficiency, and scalability to the current LTE network. Inspired by thinking of the fundamental mechanisms in LTE as reasons causing those problems, SoftNet, a software defined decentralized mobile network architecture toward 5G, is proposed in this article following principles proposed for designing…
BaProbSDN: A probabilistic-based QoS routing mechanism for Software Defined Networks
Over the past decade there has been an exponential increase in the Internet traffic especially with the proliferation of cloud computing and other distributed data services. This explosion of data traffic with its dynamically changing traffic patterns and flows might result in degradation of the network performance. In this context, there is a need for an intelligent…
Software defined synergistic IP+optical resilient transport networks [Invited]
Integrated orchestration of the IP+optical transport network has been well studied in recent years and has become a realistic trend in telecommunication network deployments. OpenFlow-based softwaredefined network architecture is among the emerging and intensively investigated unified control plane solutions. Numerous previous works have focused on enabling optical networks to support the OpenFlow control plane, but mostly discussed from the single controller’s point of view.…
Integrating Software Defined Networks within a Cloud Federation
Cloud computing has generally involved the use of specialist data centres to support computation and data storage at a central site (or a limited number of sites). The motivation for this has come from the need to provide economies of scale (and subsequent reduction in cost) for supporting large scale computation for multiple user applications…