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Using Decoupling Data Plane From Control Plane And The Network Industry Essay

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I. ABSTRACT “SDN industry is expected to surpass 35 billion in next five years” concluded by SDNcentral after conducting a market research on the impact of SDN on network industry. Clearly the impact is huge. Why? Because the concept of decoupling data plane from control plane and making networks programmable is a powerful one. If deployed in large scale, replacing the legacy networks architecture, it will empower service providers and operators to deploy new services, provide freedom from proprietary vendor specific network solutions while providing greater control over the network. However, this future vision of networks and SDN cannot be realized if one of the criteria of large scale acceptance is overlooked, i.e. how secure is networking the SDN way. In this paper I analyze the various vulnerabilities which can be exploited if SDN architecture is deployed on large scale. II. INTRODUCTION In traditional networking architecture, control plane and data plane are coupled in the network infrastructure. This traditional architecture has many inherent issues: 1. Traditional Networks are very hard to manage. With ever increasing size of networks, it becomes very difficult to manage and interoperate heterogeneous devices. Control plane is distributed in each infrastructure devices. 2. Cost of managing traditional networks are very high. One, the network infrastructure devices like routers, switches are very costly. Two, very highly skilled workforce is required with knowledge of

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