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OpenDaylight: Understanding the Value Propositions

April 8, 2013 at 6:03 am PST

The announcement today of OpenDaylight is big news.  Industry leading companies are partnering via Open Source to serve an emerging set of market needs:

  • Operators: want affordable real-time orchestration and operation of integrated virtual compute, application, and network.
  • Application Developers: want a single simple interface to the network.  Underlying details such as “router”, or “switch”, or “topology” can be a distraction they desire to abstract and simplify away.
  • Equipment Vendors: want a stable forum to interwork a plethora of Application interfaces with a plethora of nascent Network Device programmatic interfaces.

OpenDaylight members understand Read More »

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Infrastructure Software: SDN makes network management a first class citizen

April 7, 2013 at 9:41 am PST

Back in May 2012 Mike Fratto predicted in his blog that SDN will be “Reborn in Network Management”. There is a lot of truth to his statement. The words “software defined” in “Software Defined Networking (SDN)” inspired people to rethink the overall control plane architecture of the network making the case for infrastructure software that complements software already embedded in virtual and physical devices, (e.g., the software and protocols running in and between network elements).

We are evolving our treatment of the network.  What once was a discrete set of loosely coupled devices will now be interacted with as a system.  To get there means the network must be represented by an overall system model. Classic network management functions become an integral part of the infrastructure software, and will spawn their own management requirements. SDN makes network management a first class citizen. Effectively we’re past the time when network management was an afterthought, or when network management was an operational silo. The coming integration of network management into the larger network software domain means infrastructure managers will not only manage and operate, but also actively contribute to the overall business proposition of the IT infrastructure. Read More »

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Deploying onePK Applications

This post expands on my previous posts about what makes onePK better, and the onePK software architecture. Here I focus on the application deployment options onePK makes available.

The deployment options are summarized in the diagram below.


Process hosting means that the onePK application is running within a container on the same hardware as the network operating system (NOS). Read More »

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Shelly’s onePK “Wiring” App

This blog is a follow on to my introductions to onePK and the onePK software architecture. This post is special, as I have the pleasure of introducing, by way of conversation, my colleague Shelly Cadora, an experienced speaker on SDN, and developer with onePK, and to highlight some of the work she has done with onePK.


“So, Shelly, in my blog on onePK a few months ago I said that I thought that we would start to see new models for network management and deployment enabled by onePK. Lo and behold! You created just such an example for demonstration at Cisco Live, so what’s that mean for us all?” Read More »

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Virtualization, SDN, and Radically Simplified Operations

January 2, 2013 at 8:37 am PST

Today many look to SDN as the next big revolution in Networking.  But why is there such hype?  What radical change in the economics of networking will shift the industry?  The answer is Virtualization.

Virtualization’s growth is still in its infancy, and many aspects remain unexplored.  Still there are aspects of which we are certain:

  • With an explosion in the number of Virtual devices, it is unaffordable for humans to remain in the loop for routine network operations.
  • Emerging business models are not achievable when (slow) humans are involved in the provisioning process. Read More »

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