13½ Interesting Questions about SD-WAN

Ethan Banks raised some thought provoking questions around SD-WAN on his blog. Here’s our response to those questions. 1) What’s the impact to hosts on virtual machine based endpoints, i.e. how much CPU does an SD-WAN VM eat for solutions that use VMs? Not a simple question to answer anymore, as there’s usually cryptography involved. Silver […]

Network Analytics: The New Route To GRC?

The predictions for the growth in data volumes are stark – the impact of a large increase in the number and diversity of devices being attached to networks through the internet of things (IoT) and internet of everything (IoE) will be massive. Alongside the need to open up data access to more entities along the […]

What Are The Next Steps In A WAN Redesign?

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 […]

Your Network Needs Agility — Whatcha Gonna Do?

Remember in the old World Wrestling Federation days when Mean Gene Okerlund would interview all of the wrestlers and each one would have their own tag line? Rick Flair’s was a simple “woo!” while Hacksaw Jim Duggin would scream “oh-ooh!” Hulk Hogan’s might have been the most memorable when he would ask his next opponent, […]

What Is A Next-Generation WAN?

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 […]

Finding Networking’s ‘Missing Leg’

Three-legged stools can be found all over the place – bar stools, children’s stools, farmers’ milking stools are just a few. This isn’t because having three legs is cheaper than 4: it is actually that three legs are better than four in many cases. Take those four-legged chairs that you often find yourself having to […]

Goodbye Radio Shack — Software Shift Claims Another Victim

Radio Shack recently announced that, after 94 years, it was declaring bankruptcy and selling over 2000 stores to Sprint. The company may sell some other stores and no matter how the restructuring turns out, the Radio Shack moving forward will be significantly different than the one we’ve known. Radio Shack was a giant in its […]

The Sky Still Hasn’t Fallen — Further Thoughts On IPv6

Just over a year ago, I wrote a piece on why IPv6 has not taken off. 12 months on, has much changed? To a greater extent, the urgency behind why IPv6 has to be adopted has grown – as mentioned in this piece pulling out the difference between the IoT and the IoE, the growth […]

Internet Connections Can Be Used For More Than Best Effort Traffic

The topic of WAN transformation is certainly nothing new, but the shift to mobile and cloud computing is making the evolution of the WAN something businesses must make a priority. Prior to being an analyst I ran some fairly large WANs, and for as long as I can remember there has been talk of trying […]

It’s The Software, Stupid! But Also The Hardware And ASICs

The mania around software is at an all-time high. Everyone is a software vendor and it seems no one wants to be in the hardware business anymore. Software is the new, sexy item and people flock to software solutions like teens flock to Taylor Swift — hardware is so last century. However, I think it’s […]