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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.

Nathan:

“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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Network wide Bonjour® – How would you support Bonjour across multiple VLANs?

As the saying goes, “every stick has two ends”. While laptops, smartphones and tablets have enabled us to be more mobile without compromising on being “connected,” with it comes challenges such as WIFI accessibility, power consumption and your ability to find network based services, like a printer wherever you happen to be.

To facilitate the ability for an end user to discover Services on a network, various Service Discovery protocols have been introduced. One of the most popular is DNS-SD (DNS-Service Discovery), which in conjunction with mDNS (multicast DNS) make up Apple’s offering called Bonjour. Bonjour enables end users to discover Services on their local network. While Bonjour is focused on smaller networks (e.g. Home Networks) with the advent of mobile customers wanting to discover services in close proximity, Bonjour becomes an ideal option to facilitate that. However, as Bonjour utilizes mDNS which is constrained to a single VLAN, customers are not able to discover services across multiple VLANs.

There are a few approaches being proposed to support Bonjour across multiple VLANs:

Read More »

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Accounting and Routing in the Internet

Accounting Traffic in the Internet Today

[the full article can be seen at http://www.internetsociety.org/sites/default/files/BGP-for-regulators.pdf]

Business Model Changes

In the past, voice traffic was transported over a dedicated voice infrastructure, and the data network infrastructure was established in parallel so that voice and data traffic did not interfere with each other. Traditional voice accounting and performance functions are standardized within SS7 (Common Channel Signaling System No. 7), the global standard for telecommunications, defined by the ITU-T. The success of data networks led to the development of techniques to encapsulate voice traffic in IP packets, and thus Voice over IP (VoIP) was born. Read More »

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The onePK Software Architecture

This post is about the onePK software architecture, and how it allows us to consistently expose network operating system (NOS) features to a wide variety of programming environments for IOS, IOS-XE, IOS-XR and NXOS.

For an overview of onePK in general, and some more context, see my October 2012 post and my slides in Slideshare.

The main elements of the onePK software architecture are illustrated Read More »

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