How will SDN and NFV Standards Really be Developed?
How will SDN and NFV Standards Really be Developed?
/ Jun 2, 2015 0 COMMENTS

Most people like standards because they believe that standards lead to something they really want, which is interoperability. I have been a member of three different standards committees, one of which was sponsored by the European Computer Manufacturers Association (ECMA). At one ECMA meeting, a 45 minute discussion broke out about the proper format for…

How Do I Build A Framework To Justify Upgrading The WAN?
How Do I Build A Framework To Justify Upgrading The WAN?
/ Apr 20, 2015 0 COMMENTS

As described in previous blogs, there is a large and growing set of technologies that can be used to implement a next generation of enterprise WAN. However, no enterprise implements technology just for technology’s sake… and as a result, network organizations interested in upgrading their WAN are facing a critical question: What do I have…

How Do You Choose Which WAN Vendors To Talk To?
How Do You Choose Which WAN Vendors To Talk To?
/ Apr 15, 2015 0 COMMENTS

If you’re thinking of updating your WAN I have good news and bad news. The good news is that there is a wide range of new functionality being introduced into the market that can form the basis for a new generation of enterprise WANs. The bad news is that without an effective strategy for analyzing…

How Do You Pull Together a WAN Project Team?
How Do You Pull Together a WAN Project Team?
/ Apr 6, 2015 0 COMMENTS

There is absolutely no doubt that it has been a very long time since there were any fundamental changes to enterprise WAN design. There is also no doubt that there is a broad breadth of WAN-related functionality currently being introduced into the marketplace. This has to leave many network organizations wondering: How do I go…

What Are The Next Steps In A WAN Redesign?
What Are The Next Steps In A WAN Redesign?
/ Mar 18, 2015 0 COMMENTS

Most of the network organizations that I work with realize that they have the same basic WAN design as they did 5 to 10 years ago. They also realize that there is a lot of WAN-focused technology being brought to market. That leaves these organizations asking a critical question: How do I get from where…

What Is A Next-Generation WAN?
What Is A Next-Generation WAN?
/ Mar 11, 2015 0 COMMENTS

In one of my last two blogs I discussed how a software defined WAN will automate the configuration of WAN edge routers and enable a WAN with multiple links to automatically reallocate traffic based on changing network conditions. In the other I discussed some of the WAN design options that the Open Networking User Group…

How Should You Be Thinking About Your WAN?
How Should You Be Thinking About Your WAN?
/ Mar 2, 2015 0 COMMENTS

For a twenty year period that began in the mid-1980s the enterprise WAN went through a series of transitions, starting with Time Division Multiplexing (TDM) based on T1 access and then moving on to Frame Relay, ATM, and finally to MPLS. Unfortunately, over the last decade there hasn’t been a new transmission service introduced into…

SD-WAN To The Rescue
SD-WAN To The Rescue
/ Feb 16, 2015 0 COMMENTS

Sofware-Defined WAN (SD-WAN) technologies are a hot topic right now in the networking world. Here we have a case of two extremes coming together. One extreme is the WAN, which has seen little fundamental development in roughly a decade. The other extreme is Software-Defined Networking (SDN), which has been a focal point for massive development…

Should Enterprise Take a Big Bang Approach To NFV?
Should Enterprise Take a Big Bang Approach To NFV?
/ Jan 21, 2015 0 COMMENTS

As the interest in SDN continues to increase, we are also seeing growing interest in a related network architecture: Network Functions Virtualization (NFV). Organizations that are evaluating the viability of NFV have to make a key decision early on: Should they go forward with a piecemeal approach or should they go for a big bang…

Where Do We Stand With SDN?
Where Do We Stand With SDN?
/ Jan 9, 2015 0 COMMENTS

I wrote my first analyst report on SDN back in 2012. Since then there have been more analyst reports, white papers, and blogs written on SDN than I or anybody else could ever count. The sheer volume of documents on SDN can lead networking professionals to become SDN-weary. However, since it is often the case…