If SDN and NFV are going to create market waves, the obvious question is whether vendors are going to ride them or be swept away. Given the immature state of both technologies, there’s not a lot of clear indicators to read on that topic, but there do seem to be a few signposts emerging from…
A Realistic if Unsatisfying View of the “Market” for SDN and NFV
You can hardly pick up (virtually) an online publication these days without seeing an extravagant market forecast on NFV. I don’t have much faith in forecasts in general; they usually turn out to be aimed at validating the largest market possible because the buyers of the report are usually vendors. NFV is particularly problematic, though,…
Making Network Revolutions into Realized Revolutions
The notion that things are changing, perhaps a bit too fast for comfort, is hardly a modern phenomenon nor one confined to tech. One of my favorite poems (Arthur Guieterman’s On the Vanity of Earthly Greatness) starts with the provocative line “The tusks that clashed in mighty brawls of mastodons…are billiard balls.” Change, and not…
What Operators Think of SDN Deployment Models and What that Says about the Future
I had an interesting exchange with a planner in a mid-sized carrier, and got some insight into how network operators are seeing SDN. Coming from an exchange with some other operators, my contact gave me a tutorial on the “models” of deployment the operators are seeing as promising. Some are familiar, and some approaches we…
The Five Stages of VNFs
VNFs, meaning virtual network functions, are important to NFV. Without them there’s no possible business justification to be had, no matter how good our infrastructure or orchestration and management might be. Well, we all know there are supposed to be five stages of grief. I contend that there are five stages of VNF too, and…
Here’s an IoT Approach that Works (but Nobody Sells it)
I said in a comment on an earlier blog that I thought all the IoT approaches touted so far were irrational. In earlier blogs I’ve noted my view that IoT had to be viewed more as a big-data application than as a network. A few of you have asked me to expand on my own…
NFV Management’s Final Dimension–OSS/BSS/NMS Integration
In prior blogs I looked at the NFV deployment model and the way that management as ETSI defined it would presumably work within a “typical” deployment. The question this last of my more detailed explorations of NFV management will deal with is how “NFV management” relates to management and operations in a broader sense. You…
The Three Paths to NFV Victory (and the Risk of Detours)
NFV is turning out to be a lot more complicated than it first appeared, and that’s particularly true in the area most critical to vendors—the business case. While the question of making a broad business case for NFV is weeding out a lot of secondary players, it’s not deciding a market leader yet. In fact,…
Putting the ETSI NFV Architecture Through a Hypothetical Scenario Set
Hopefully your interest in NFV management prompted you to read yesterday’s blog and you’re ready to follow up. If not, you may want to review it before you read this one because I’m building on the last one with only a very brief level-set! Let’s assume we have a VNF with four components, one of…
NFV Management Discussion Phase One: NFV as a World of Subnets
NFV management has never been my favorite part of NFV, and I’ve groused about it here fairly regularly. It’s probably time to talk about the issues in more detail, and so I’m going to do an as-yet-undetermined number of blogs in a series about the issue. To get this straight, we have to set the…