I have refrained from writing about recent developments in software-defined networking (SDN) and in the larger realm of what VMware, now hosting VMworld in San Francisco, calls the “software-defined data center” (SDDC).
My reticence hasn’t resulted from indifference or from hype fatigue — in fact, these technologies do not possess the jaundiced connotations of “hype” — but from a realization that we’ve entered a period of confusion, deception, misdirection, and murk. Amidst the tumult, my single, independent voice — though resplendent in its dulcet tones — would be overwhelmed or forgotten.
We’re in the midst of a choppy transitional period. Where we’ve been is behind us, where we’re going is ahead of us, and where we find ourselves today is between the two. So-called legacy vendors, in both networking and compute hardware, are trying to slow progress toward the future, which will involve the primacy of software and services and related business models. There will be virtualized infrastructure, but not necessarily converged infrastructure, which is predicated on the development and sale of proprietary hardware by a single vendor or by an exclusive club of vendors.
Obviously, there still will be hardware. You can’t run software without server hardware, and you can’t run a network without physical infrastructure. But the purpose and role of that hardware will change. The closed box will be replaced by an open one, not because of any idealism or panglossian optimism, but because of economic, operational, and technological imperatives that first are remaking the largest of public-cloud data centers and soon will stretch into private clouds at large enterprises.
No Wishful Thinking
After all, the driving purpose of the Open Networking Foundation (ONF) involved shifting the balance of power into the hands of customers, who had their own business and operational priorities to address. Where legacy networking failed them, SDN provided a way forward, saving money on capital expenditures and operational costs while also providing flexibility and responsiveness to changing business and technology requirements.
The same is true for the software-defined data center, where SDN will play a role in creating a fluid pool of virtualized infrastructure that can be utilized to optimal business benefit. What’s important to note is that this development will not be restricted to the public cloud-service providers, including all the big names at the top of the ONF power structure. VMware, which coined software-defined data center, is aiming directly for the private cloud, as Greg Ferro mentioned in his analysis of VMware’s acquisition of Nicira Networks.
Still, it hasn’t happened yet, even though it will happen. Senior staff and executives at the incumbent vendors know what’s happening, they know that they’re fighting against an inevitability, but fight it they must. Their organizations aren’t built to go with this flow, so they will resist it.
That’s where we find ourselves. The signal-to-noise ratio isn’t great. It’s a time marked by disruption and turmoil. The dust and smoke will clear, though. We can see which way the wind is blowing.