Mar 10, 2014
Two years ago most articles, webinars, and seminars on SDN seemed to focus largely on some of the more technical details, such as the role of OpenFlow. In the last six months, however, the conversation has changed to where it now often focuses on linking business policy and SDN. It is difficult to be against the idea of linking business policy and SDN, but that concept raises a number of questions, one of which is: will SDN enable companies to transform how they do business?
To put this discussion in context, I should point out that for roughly twelve years I was involved in running networking organizations at two Fortune 500 companies. During that time I dealt with several waves of networking innovation, both in the LAN and in the WAN. On the LAN side, that included migrating from a number of shared technologies — such as Ethernet, Token Ring, and FDDI — to switched Ethernet. For the WAN, that included migrating from time division multiplexing (TDM) networks to Frame Relay, ATM, and MPLS. In most cases, the migration was driven by cost savings, and in some instances, we were able to add additional value by improving the availability of the network and by implementing some quality of service capabilities. However, not once in those twelve years did I, or anybody else that I know of in the network organization, have a discussion with a business manager about how any of those technologies would enable them to fundamentally improve their business processes.
All of the discussion over the last decade about aligning IT with business had begun to make me feel professionally guilty about the narrow focus of the network migrations that I had been involved with. Luckily, however, a somewhat recent MIT study assuaged my guilt. That study pointed out that implementing new technology can have three effects:
It shouldn’t come as a surprise to anybody that the study pointed out that in the vast majority of instances, senior IT executives believe that they are experiencing effects one and two, and that they rarely experience effect three.
So is this a call to action? Should network organizations have a strong focus on how SDN can enable fundamental business change? No, I don’t think so. If I were still running networking organizations I would focus on things that are potentially doable in a relatively short timeframe to try to get some early wins. Implementing virtual networks using SDN and using SDN for network monitoring come right to mind.
I would take that approach because network organizations unto themselves cannot cause fundamental business change. That has to be led and coordinated by the company’s senior leadership. But this doesn’t mean that network organizations should sit idly on the sidelines. Networking organizations can and should deploy the technologies that enable fundamental business change, and they can and should actively advocate for those changes.