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Question Answered. SDN Is Secure | @CloudExpo @Ciena #SDN #IoT #M2M #API
SDN provides a centralized intelligence and control model that is well-suited to provide flexibility to network security
By: Chris Janz
Jul. 25, 2015 10:30 AM
The Question Has Been Answered. SDN Is Secure
Software-Defined Networking (SDN) is one of the most interesting developments in networking to emerge in the last decade. The potential to establish a simplified infrastructure and leverage software to dynamically modify existing flow characteristics has the potential to address many concerns around hardware costs, faster service provisioning, and greater configuration control across diverse networks. However, concern for or lack of information about security is a key inhibitor to SDN adoption in today's rapidly-evolving data centers and connected wide area network environments.
With good reason: there is news of another global data breach almost daily. More than 1,500 data breaches led to 1billion data records compromised in 2014 alone, a 49% increase in data breaches and a 78% increase in data records stolen or lost compared to 2013. While it's easy to focus on all of the security vulnerabilities (actual and perceived) in an open system, there a number of security benefits that SDN can in fact help realize.
It's true that currently available security solutions are difficult to deploy, manage, program, scale, and secure. Policies are tightly coupled to physical resources as opposed to services and applications. Security solutions struggle to provide quick and automated threat mitigation across equipment from multiple vendors. Consistent security policies are difficult to administer across compute, storage, and network domains, and multiple data centers.
What SDN provides is a centralized intelligence and control model that is well-suited to provide much-needed flexibility to network security deployments with a number of complementary attributes that are useful for implementing a highly secure and manageable environment, including:
By blending historical and real-time network state and performance data, SDN facilitates intelligent decision making, achieving flexibility, operational simplicity, and improved security across a common infrastructure. And with the proper configuration and integration, you can secure an SDN environment without impact to SDN capabilities. This provides a way to address one of the most common security critiques - that security is bolted on, as opposed to built-in. With SDNs, security can be a core part of the network solution right from the beginning, making the management and implementation of proven security mechanisms easier.
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