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Why I Chose the Open Source Model I did for OpenDaylight

Now that OpenDaylight has arrived, it’s time to explain why I made the Open Source choices eventually embraced by its Founders and the community at large.  One doesn’t often see such leaders as Cisco, IBM, Intel, HP, Juniper, RedHat, VMWare, NEC, Microsoft and others agree, share and collaborate on such key technologies, let alone the latter engaging in a Linux Foundation based community (some thought hell will freeze over before that would ever happen, though it got pretty cold at times last Spring).

For those of you not familiar with OpenDaylight (see “Meet Me On The Equinox”, not a homage to Death Cab for Cutie or my Transylvanian homeland), IBM and Cisco have actually started this with an amazing set of partners, nearly that ephemeral Equinox this year (~11am, March 20th) though we couldn’t quite brag about it until all our partners saw the daylight, which by now, we’re hoping everyone does.  It was hard not to talk about all this as we saw those half baked, speculative stories before the Equinox – amazing how information flew, distorted as it were, but it did; I wish source code would be that “rapid”, we’d all be so much better for it…

The Open Source model for OpenDaylight is simple, it has only two parts: the community is hosted in the Linux Foundation and the license is Eclipse.  The details are neatly captured in a white paper we wrote and published in the Linux Foundation.  Dan Frye, my friend and fellow counterpart at IBM and I came up with the main points after two short meetings.  It would have been one, but when you work for such giants as our parent companies and soon to be OpenDaylight partners, one has to spend a little more time getting everyone to see the daylight.  It boils down to two things, which I am convinced are the quintessential elements of any successful open source project.

1) Community.  Why?  Because it trumps everything: code, money and everything else.  A poor community with great code equals failure (plenty of examples of that).  A great community with poor (or any) code equals success (plenty of examples of that too).  Why? Because open source equals collaboration, of the highest kind: I share with you, and you with me, whatever I have, I contribute my time, my energy, my intellectual property, my reputation, etc.. And ultimately it becomes “ours”.  And the next generation’s.  Open Source is not a technology; it’s a development model.  With more than 10 million open source developers world wide, it happens to be based on collaboration on a scale and diversity that humanity has never experienced before.  Just think about what made this possible and the role some of the OpenDaylight partners have already played in it since the dawn of the Internet.  Dan Frye and I agreed that the Linux Kernel community is the best in the world and so we picked the closest thing to it to model and support ours, the Linux Foundation.

2) Fragmentation, or anti-fragmentation, actually.  Why?  The biggest challenge of any open source project is how to avoid fragmentation (the opposite of collaboration).  Just ask Andy Rubin and the Android guys what they fear the most.  Just ask any open source project’s contributors, copyright holders, or high priests, how much they appreciate an open source parasite that won’t give back.  Though we would have liked to go deeper, we settled on Eclipse, largely because of the actual language and technology we dealt with in the OpenDaylight Controller: most, if not all the initial code is Java, and though some are worried about that, I’m sure Jim Gosling is proud (btw, I’m not sure the Controller has to stay that way, I actually agree with Amin Vahdat), but we had to start somewhere.  Plus having a more friendly language NB (northbound, as in the applications run on top of the Controller) is such a cool thing, we think that the #1 open source (Eclipse) and the #1 commercial (Microsoft) IDE’s are going to be very good to it, so why not?  There are more reasons that pointed in the Eclipse direction, and other reasons for such wonderful alternatives (as APL or MPL, perhaps the subject of another post, some day).  But when it comes to understanding the virtues of them all, no one understands them better than the amazing founders of these license models, most of them from IBM, of course (I wish they did that when I was there).

What happened between the Equinox and Solstice is a fascinating saga within the OpenDaylight community which I think played its course in the spirit of total and complete openness, inclusion, diversity, respect of the individual and the community, and most of all, that code rules – we do believe in running code and community consensus.  I tip my hat to all my fellow colleagues that learned these two things along the way, the enormous talent at the Eclipse and Linux Foundation that helped us launch, and even the analysts who tried (and did incredibly well at times) to speculate the secret reasons why these partners came up with the model we did: there is no secret at all, my friends, we’re simply creating a community that is truly open, diverse, inclusive, and never fragmented.  Just like a big, happy family.  Welcome to OpenDaylight, we hope you’ll stay!

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Securing the Open Network Environment

With all of the focus on Software Defined Networking, open networking, API’s, you name it, I do often wonder how, with all of this ‘openness’, does an Enterprise keep their network secure? After years of security teams working  tirelessly to protect their business critical infrastructure does this paradigm shift where anyone can write an application to control, get the intelligence from, and manipulate the network become the reason for many a sleepless night for security experts around the world? And on the other hand, can this new way to manage the network help in threat detection and prevention?

If you, like me, are wondering the same thing, I invite you to register here for the 5th session of the Cisco Open Network Environment Webcast Series titled “Securing the Open Network Environment” broadcasting on July 30th at 9 a.m. PST.

Jon Oltsik, ESG, Security, Mike Nielsen, Bret Hartman, ONE, SDN

Join Mike Nielsen and Bret Hartman from Cisco as well as Jon Oltsik from Enterprise Strategy Group (ESG) for a great discussion featuring live Q&A throughout the session.

If you have missed any of our previous sessions featuring introductions to OpenFlow, OpenStack, Cisco’s onePK, and Using Open Source in Networked Environments, please visit www.cisco.com/go/onewebcasts.

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Programmability and SDN are not the same

June 26, 2013 at 7:05 am PST

Network programmability means democracy, means freedom, freedom to program across all layers and entities, software or hardware – depending on your needs. Is SDN required to have network programmability? Not at all. Does the SDN architecture leverage network programmability? Yes, of course.  So, why do many people equate network programmability and SDN? Read More »

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The “Business” of Software Defined Networking

I admit it. I’ve grown weary of the debate about whether SDN includes network programmability or whether or not SDN can only be accomplished through NfV, or the relative merits of control plane / dataplane separation. I will leave those debates to others more focused on the technology itself.  Personally, I have been more fascinated with what I see as the new business opportunities emerging around SDN.

Certainly there is a raft of opportunities for start-up companies in the controller space or in the virtualization of various networking functions. Many innovative new companies are re-examining existing network functions within the SDN paradigm; that will lead to some potentially new and useful approaches that may be cheaper/easier/faster than current designs. No doubt many customers will see value in these new ways of doing things, and everybody will benefit.

But that’s not what I find fascinating about SDN. What I am starting to see are ideas that are completely out of the box, and would likely not be thought of by typical network technologists working alone. Let me discuss a few categories of things I have seen possible with the emerging technologies.

The Network as a Compute Resource
It turns out Read More »

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Blogging Journey from Cisco Live from Cisco ONE: Intelligent Programmable Network

Cisco Live is here! It’s a great opportunity for you to discover some really exciting technology solutions at our Cisco ONE: Cisco Intelligent Programmable Network booth featuring a few of our latest innovations.

Onsite you will be able to see and ask your questions at live demos featuring applications and services developed with One Programmable Kit (onePK), Openflow and the eXtensible Network Controller. In addition, we have demos devoted to IPv6, routing, service discovery and network design simulation -- all things meant to make your network simpler and smarter.

There are also some great partner demos including our friends from SAP, Citrix, Glue Networks, Pramacom, Radware, and Starview who are showing some really cool apps that use the Cisco ONE APIs. Read More »

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