Storage Elasticity and the Cloud’s Noisy Neighbors

If you’re looking at setting up private cloud services — or public ones, for that matter — you should already to have a handle on how to automate the critical functions of creating, managing and migrating virtual servers. That’s because if you haven’t achieved this level of service elasticity, it is going to cost a […]

The Need to Plan for WAN Evolution

In a previous entry here on the WAN Speak blog I discussed some of the differences between the LAN and the WAN.  I also pointed out that there are not any fundamentally new WAN technologies under development, and that as a result, IT organizations need to plan for WAN evolution based on the assumption that, […]

The Real-Time Value Chain

I’m old enough to remember when an organization could pretty much draw a line around itself and say, “that’s us”.  Sure, suppliers and customers were involved, but as far as IT was concerned, little interaction happened beyond the four walls of the organization itself. How things have changed.  Widespread use of the internet has made […]

When “East-West” is More than Pacific to Atlantic

When discussing cloud computing, the term “East-West latency” often comes up as users on one coast of the US have found themselves using data centres on the opposite coast – and find that the user experience was not quite as they would wish. The direct distance between San Diego, California on the western seaboard to […]

No WAN is an Island

“No man is an island, entire of itself. Each is a piece of the continent, a part of the main.” The timeless metaphor by English poet John Donne provides many applications for reflection. Far from being islands, Wide-area-networks (WANs) actually interconnect islands of technology, such as data centers, branch offices and islands of individual mobile […]

Controlling Next-Gen WAN Costs

According to a new study from Information Week, “The Next-Gen WAN,” the biggest WAN game changer is the cloud, both public and private. Public cloud users will have to shift from the conventional WAN hub-and-spoke design to a distributed model, where services are delivered over Internet connections at each location, to reduce the load over […]

When You Expect Fast But You Get Slow

Most of us have pummeled the bottom of a reluctant ketchup bottle; waiting impatiently for the tangy, red condiment to flow onto our plate or burger. That’s similar to the frustration users feel when they try to download an application or web page, but have to wait, and wait, and wait! They might tap on […]

WAN Optimizing the Big Data Network

There is a lot of hype – and confusion – about the growing phenomenon of ‘Big Data’, a.k.a. the acquisition, analysis and interpretation of ridiculously huge data sets. Depending upon the sources you use, Big Data is still very much in its infancy, but it is growing and will have a major impact on network […]

Serenity Now!

One of my favorite Seinfeld episodes is the one in which Frank Costanza yells, “Serenity Now!” every time his blood pressure was in danger of rising. Clearly, he was using this “technique” to relieve his stress. Unfortunately, Frank’s method of relaxation drove everyone else crazy. While data centers and WAN infrastructures continue to grow in […]

Good Marketing or Product U-Turn?

Riverbed’s announcement of a new “Packet Mode Optimization” feature in RiOS 7 is puzzling. In many ways, it seems like more of a marketing ploy than a serious technology focus. Speaking of technology, I can’t help but be amused at Riverbed’s brand new tunnel-based architecture. Aside from the fact that a new architecture that hasn’t […]