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7 Essentials Of Software-Defined Networking
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Marilyn Cohodas
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Marilyn Cohodas,
User Rank: Author
11/19/2013 | 9:35:50 AM
Great Slide Show on a Complex Topic
Sue, Thanks for boiling down this abstract -- and very hot -- topic into key fundamentals  I know I'm going to bookmark the page and refer back to it as trends develop and technologies mature. 
Michael Endler
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Michael Endler,
User Rank: Author
11/19/2013 | 9:44:12 AM
Good intro to SDN
A good explanation. SDN is one of those much-buzzed topics - like the Internet of Things - that people frequently mention without really understanding. As Cisco, Dell and others advanced somewhat different definitions of SDN and what it's supposed to do, it will be important for IT decision-makers to wander into the weeds to select the model that's best for their needs.
HaileyMcK
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HaileyMcK,
User Rank: Apprentice
11/19/2013 | 9:57:28 AM
Word of the day
SDN is certainly the word of the day. I suspect that eventually our networks will be, by definition, software defined. In the meantime, this is really helpful primer. Thanks!
virsingh211
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virsingh211,
User Rank: Strategist
11/19/2013 | 10:31:56 AM
Re: Word of the day
I agree on SDN being word of day, but as it is approaching closer day by day, i feel its getting complicated for IT managers, is there any rules you would suggest as we travel on SDN road..
MarciaNWC
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MarciaNWC,
User Rank: Author
11/19/2013 | 11:39:53 AM
SDN clarity
I really like how this slideshow cuts through all the different SDN messages and approaches to focus on essential SDN concepts. It brings a lot of much-needed clarity to a very important topic.
Susan Fogarty
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Susan Fogarty,
User Rank: Author
11/19/2013 | 3:38:05 PM
Re: Word of the day
Virsingh211, I couldn't agree more that SDN is extremely complex, not only in technical concept, but also in the way the vendors are approaching it and attempting to integrate open standards. (Check out today's commentary, SDN Upends The Switch & Router Market.) My advice would honestly be to wait and see. Also to fully understand the business challenges you are trying to solve and what you'd like to achieve before making any technology investments. 
sam masud
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sam masud,
User Rank: Strategist
11/19/2013 | 4:09:58 PM
SDN numbers
Susan,

I've come across various market estimates for SDN, and to be frank, I wonder if we can really predict the SDN market at this time since there is really is nothing to go by (no baseline) other than the traditional switch-router market. And the latter might not be a very good predictor for SDN since SDN probably will have much lower prices compared to switches-routers.
Li Tan
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Li Tan,
User Rank: Ninja
11/20/2013 | 9:17:51 AM
Re: Great Slide Show on a Complex Topic
Marilyn, I am so glad to see you again.:-) I am with you on this post. This is a great introduction to SDN and presented the essential idea. In old days we talk about MPLS VPN, Juniper Virtual Switch and Virtual Router. They have the concept about virtualization but it's not really SDN. Now the technology evolves so that we have this kind of cutting-edge architecture. I do believe that SDN is the future for networking - today still the physical network infrastructure is not used in its most efficient manner.
Marilyn Cohodas
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Marilyn Cohodas,
User Rank: Author
11/20/2013 | 9:30:31 AM
Re: Great Slide Show on a Complex Topic
Great to see you participating in the InformationWeek community, as well, Li. I know you've been following SDN with keen interest over the past few years. Do you still have a feeling of "Still Don' kNow". Or is it starting to make more sense?

If it's the latter, I wonder if you could share your understanding of the technology and some of the use cases that you might be familiar with or can imagine.

 
Susan Fogarty
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Susan Fogarty,
User Rank: Author
11/20/2013 | 11:18:01 AM
Re: SDN numbers
Sam, you have a good point about the market numbers. The chart I oncluded here was from the most recent analyst report I could find. It also includes revenue from associated equipment and support services -- so that defiition could be very widely interpreted.

I included it less for th exact data and more as a wake-up call to anyone who thinks SDN might be a passing fad. When you look at that kind of projected growth, it's hard to ignore it and hope it will just go away ;)
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