So the poet Arthur Guiterman tells us. Time marches on. The days when enterprises built their own networks using routers and digital trunks are, for all practical purposes, gone. Thirty years ago, more than three-quarters of enterprises said that was how their wide-area networks were built, and so the “service” they consumed was the digital pipe. Remember T1 and DDS? But time marched on, and today only 18 of 294 enterprise IT professionals who provided me with information on their WAN in the last six months said they used such digital-pipe services today, other than for access. It’s all about the VPN, and 224 of those enterprises think it will be that way for at least five years.
