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OpenFlow - News, Features, and Slideshows
Two users are putting OpenFlow and software-defined networks through their paces in projects of varied urgency.
When getting to know software defined networking, you'll encounter a number of terms that are used in conjunction with the technology. Some of the terms are unique to SDN, while others describe technologies that, while not unique, are frequently used in SDN designs.
Software has been programming our networks for a long time, so how is SDN different?
In today's data center you need to be able to add services and hardware without compromising network performance, but the flexibility to tune the network to meet business needs is also mandatory.
Citing concerns over technical and market direction, Big Switch Networks has downgraded its participation in the OpenDaylight consortium, a multivendor effort to define an open source SDN framework.
If you aren't intimately familiar with software defined networking, don't fret. Only 10 per cent of 450 IT practitioners at a recent Network World event raised their hands when asked if they understand SDN. But if the emerging technology lives up to its promise to redefine networking as we know it, there is no time like the present to dig in and learn more.
What of the oft-mentioned northbound APIs that will let applications tell the controller what they need from the network? What kind of progress is the Open Networking Foundation making on that front? Network World Editor in Chief John Dix put the question to Robert Sherwood, CTO of Big Switch Networks and head of the ONF's Architecture and Framework Working Group.