Network Managers Want Automation for WAN-Based SDN

To date, the majority of software-defined network (SDN) solutions have been focused on the data center. Recently, though, there has been an increase in the number of vendors that provide wide area network (WAN)-based SDN solutions. As is the case with the data center, the term is very broad and means everything from orchestration of […]

What’s the Role of the Application Delivery Controller in a Software-Defined Network?

The topic of software-defined networks (SDNs) has been one of the hottest on this site, or really any site dedicated to networking. Much of the focus of the SDN-centric reports and articles I have seen has been on the disruption of the layer 2/3 network by abstracting control functions up from the physical infrastructure to […]

Staying On Top Of The SDN Heap

It’s a good news/bad news situation for Cisco, according to a couple of new reports. The good news is that Cisco still dominates the networking industry, showing its heels to the more than 100 vendors competing for a slice of a $50-billion pie. On the bad news front — or at least problematic from Cisco’s […]

Where’s the SDN Business Case?

Ok, I’ll admit it: I think that Software Defined Networking (SDN) is an exciting alternative to traditional network architectures. But companies don’t implement a technology or an architecture just because it’s exciting, or because it’s all the rage with the press and the analysts. In most cases there has to be a strong business case. […]

When Will The SDN Smoke Turn Into Flames?

Over the last two years, Software Defined Networking (SDN) has been one of the most-discussed topics in all of IT.  There is an old adage that says that where there’s smoke there’s fire.  Does that adage apply here?  More to the point: Will all of the ongoing discussion of SDN lead to broad SDN deployment […]

Network Functions Virtualization Enables Cost-Effective Route Reflectors

One of the concerns I hear from network managers regarding all things software defined networks (SDNs) is the lack of use cases for the new technology.  It seems the technology promises to solve so many problems that it’s hard to understand where to start.  Network Functions Virtualization (NFV) is no different.  Lots of possibilities, but […]

The Pollock Platform: Network as Abstract Art

Jackson Pollock was the father of “action painting”, dripping paint on to canvas and even using jet engines to create his abstract art, now worth millions on the art market.  Although he used the same basic resources as any other painter (oils and canvas), he used different techniques to create something that is pretty easily […]

The Calm Before The SDN Storm?

Software-defined networking has been all the rage when it comes to the Internet of Things, Big Data, cloud, and mobility, but a couple of new reports indicate that the approaching SDN storm is calming down — unless you’re Cisco and VMware. It’s hard to find anyone who doesn’t believe that SDN will radically reshape the […]

IP Video Surveillance a “Deadly” Application for Network Virtualization

It seems in the technology industry we’re always on the lookout for the “killer application” to take something that’s new and make it mainstream.  The best example of this was, of course, Lotus 1-2-3 and its role in the Windows interface becoming the de facto standard it is today.  After that, the floodgates opened and […]

Is NFV The Answer?

In a recent blog I suggested that NFV was hotter than SDN, and pointed out how impressed I was with the European Telecommunications Standards Institute (ETSI) Industry Specifications Group for Network Functions Virtualization (NFV ISG) and the nine Proof of Concepts (POCs) that they were sponsoring.  Since I wrote that blog, the number of POCs […]