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Software Defined Networking | Part 3 By @MJannery | @CloudExpo [#SDN #Cloud]

This post will cover whether you're better off with an all virtual environment or you want some physical hardware

In the last part of our series, we covered overlay SDN and underlay SDN. This post will cover whether you're better off with an all virtual environment or you want some physical hardware.

It is possible to implement SDN solely using existing network infrastructure and to provide SDN overlay connectivity using tunneling technologies.  That said, most people concede that some physical hardware will be needed to perform certain key network functions or at key locations within the network.  Fortunately there are a growing number of physical network appliances which are SDN conversant and can form an integral part of an SDN deployment.  The most widespread SDN southbound protocol being OpenFlow and many hardware vendors now provide switches, routers, etc. offering OpenFlow APIs including Cisco, Brocade, A10, Extreme, HP and many other mainstream network hardware vendors.  For proprietary SDN solutions (such as Cisco ACI) the vendor's own kit is mandated.

Our next part in this series will cover the benefits of SDN.

More Stories By Michael Jannery

Michael Jannery is CEO of Entuity. He is responsible for setting the overall corporate strategy, vision, and direction for the company. He brings more than 30 years of experience to Entuity with 25 years in executive management.

Prior to Entuity, he was Vice President of Marketing for Proficiency, where he established the company as the thought, technology, and market leader in a new product lifecycle management (PLM) sub-market. Earlier, Michael held VP of Marketing positions at Gradient Technologies, where he established them as a market leader in the Internet security sector, and Cayenne Software, a leader in the software and database modeling market. He began his career in engineering.

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