Software Defined Network

In my quest to really understand SDN, I’ve been reading a number of research papers and watching presentations by industry researchers. It has been quite educational and I thought that [...]

I’ve been thinking about the types of network abstractions that SDN might enable ever since I saw Scott Shenker’s Gentle Introduction to SDN. In that presentation Scott said that we [...]

It is no secret that I am interested in network management. Every time I start working in a large network, I get frustrated with the lack of tools to see [...]

I just posted a blog at nojitter.com titled Monitoring a Software Defined Network, Part 1. In it, I discuss the basic network monitoring functions that will be needed. Most of these [...]

I’ve been thinking about many of the topics that were discussed in the recent NFD6) meetings I attended last month. What really stands out for me is that the use case [...]

I have some comments about a recent article on Using Network Virtualization in Campus Networks. I appreciate the author’s attempt to compare. The article omitted some relevant points. Or the author [...]

Do you recall a lot of talk a year or two ago about SDN or perhaps OpenFlow and finding the right level of abstraction? What ever happened to that? Did we [...]

SDN has to be one of the most amazing hype flareup ever. Pour VC capital on and it behaves sort of like marketing kerosene. Is there a networking / management product left that doesn't claim to be doing SDN?

I keep hearing about how SDN will fail because of high round-trip latency from an switch or router platform to the controller. This is much like the criticism I heard [...]

Thanks to the person who asked me about the Daylight Project via a blog comment. I’ve been researching the rumors online. The purpose of this blog is to summarize the [...]

Yes, I’ve been lurking and watching discussions of SDN (Software Defined Networking) for quite some time. I’ve been quietly assessing what I read and hear, what I believe, where I’m skeptical, and [...]

Software Defined Networking (SDN) is a relatively new term and its definition is still being refined. I thought that it would be useful to help refine the definition with some [...]