What to do when you need more Enterprise WAN bandwidth

Moving on in our coverage of which of the various technologies – including those that are part of the Next-generation Enterprise WAN (NEW) architecture, like WAN Optimization, WAN Virtualization and Network-as-a-Service, and others –...

How to address WAN jitter issues for real-time applications

We continue to cover the broad topic of which of the various technologies – including those that are part of the Next-generation Enterprise WAN (NEW) architecture, like WAN Optimization, WAN Virtualization and Network-as-a-Service,...

How to address application performance issues from WAN latency variability

Continuing the broad topic of which of the various technologies, including those that are part of the Next-generation Enterprise WAN (NEW) architecture, like WAN Optimization, WAN Virtualization and Network-as-a-Service, and other,...

Addressing WAN latency issues in application performance

Over the last few months in this column, we've described the various technologies that make up the Next-generation Enterprise WAN (NEW) architecture, and some of the high-level benefits of each. We also spent two columns on the...

Why synchronized, replicated file service makes sense now

Last time, we saw why WAN Optimization won over WAFS. This time we'll take a look at how distributed replicated file services compared to WAN Optimization as alternatives looking backwards, as well as how such file services can...

Why WAN Optimization won over WAFS

In the last few columns we've covered two technologies - server virtualization and colocation - that while not WAN technologies per se, are critical components of the Next-generation Enterprise WAN (NEW) architecture, along with WAN...

The benefits of Colocation facilities for the Next-generation Enterprise WAN

Last time we began our discussion of colocation and how it relates to the Next-generation Enterprise WAN (NEW) architecture. This time, we'll look further into the benefits that colo facilities can bring to the Enterprise WAN, when...

Colocation facilities – the hidden enabler of the Next-generation Enterprise WAN

Last time we covered the network benefits to the enterprise WAN of server virtualization. While WAN Virtualization is the newest technology of the key components of the Next-generation Enterprise WAN (NEW) architecture, and WAN...

Server virtualization and Next-generation Enterprise WAN architecture

Having covered over the last several columns the key WAN factors affecting application performance as well as the "chattiness" issues of certain applications, a lot of the history of the Enterprise WAN and the consequences of that...

'WAN Optimization': the key WAN technology advance of the past decade

In our last several columns, we've been exploring the history of the Enterprise WAN and the consequences of that history.The combination of reliable but very expensive private WAN Frame Relay and now MPLS services, and the need to...

Statefulness in building IP networks

In our last column, we started to look at the consequences of WAN service history. We noted that what almost all the technological innovations in WAN Optimization technology, and the more recently introduced WAN Virtualization...

The Consequences of WAN Service History

In our last few columns, we looked at the history of the Enterprise WAN, with the key takeaway being that reliable but very expensive private WAN services Frame Relay and now MPLS have been the dominant technologies for almost 20...

The scourges of application performance over the WAN

Last time, I asserted that that WAN-specific application performance issues are driven entirely by three factors: latency, packet loss and bandwidth.This time, we'll cover three other major factors affecting WAN application...

What really impacts application performance over the WAN

Having just covered some history of the Enterprise WAN to help give you a feel of WAN economics and reliability, I’d now like to cover the factors that affect application performance over the WAN, as prelude to understanding the...

Enterprise WAN Service History (part 2)

An earlier column described a brief history of Enterprise WAN over the last roughly 25 to 30 years. Here, I want to go into a bit more detail on that history, as a setup for columns the rest of the summer on the factors that affect...

The Black Swan of the MPLS business

This column is usually targeted primarily towards enterprise WAN Managers and CIOs who are, to use terms Geoffrey Moore defined in his books Crossing the Chasm and Inside the Tornado, early adopters and early pragmatists when it...

HP Converged Cloud: the missing (WAN) link

In April, HP announced HP Converged Cloud, clearly targeted at the traditional large enterprise market, with a focus on hybrid environments. It also more recently announced an expansion of the Converged Cloud portfolio at Interop....

WAN Virtualization technology: 'RAID for WANs'

Last time, we looked at the analogy between WAN Virtualization and RAID at the business benefits level. Here, we examine the parallels from the technical point of view.In this post, I will refer mostly to the WAN Virtualization...

Disrupting the high-margin WAN services business model

It usually takes years, if not decades, for newer, "cheaper/faster" technologies to completely replace the older ones. After all, we still have mainframes more than 35 years after the introduction of the PC. It took more than 15...

An evolutionary WAN path to cloud computing with WAN Virtualization

Previously, we covered the network benefits of WAN Virtualization and how WAN Virtualization delivers benefits “beyond the WAN”  to areas like security, backup, file access, DR/business continuity, and private cloud computing. In the...

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