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Does SDN change everything in network architectures?
Some experts predict that the network functions virtualization (NFV) and software-defined networking (SDN) mean that physical network equipment will soon be a thing of the past. Not true! While new virtual overlays are required as technology evolves, beneath them the physical network will persist. And that network will still need upgrades. The current evolution is unique in that core equipment upgrades must lend themselves to a next-generation network migration. Both the short- and long-term impact of SDN and NFV must be considered. So, too, the potential impact of WebRTC, the open source technology that promises to enable video, talk and text through Web browsers.
This issue of Network Evolution will help network engineers assess the looming changes, determine how fast they might arrive and guide them in determining how to keep physical networks functioning in the meantime.
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Features in this issue
The next stage in network architecture's evolution is upon us. An SDN future is certain. What's less clear is how quickly it will become the norm, and what network architects should do in the meantime to keep their systems healthy and operational.
WebRTC technology promises video chat between browsers without plug-ins or installs. If video gets cheap and easy, will it overtake the enterprise?
NFV may not let operators toss their routers for generic servers yet, but it could mean a new level of service agility and increased revenue.
Columns in this issue
SDN and NFV offer exciting new features, such as network automation, but are we able to prove the business benefits of this new technology?
Big data gets big hype, but monitoring it creates more information than companies have time or money to analyze. Are we experiencing a big data fail?