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The new WAN: Virtualization, user-aware optimization, and more
This article is part of the Network Evolution issue of June 2013 / Vol. 4/ No. 3
In all the hubbub about software-defined networking (SDN) and network programmability, it’s easy to lose focus on traditional wide area networking technologies. Yet WAN innovation is plentiful these days, with radical developments in the way we architect and manage networks. This innovation will be driven, in part, by SDN and network virtualization. New technology will enable a sort of WAN-on-demand where service providers and enterprises can automatically spin up long-distance virtual networks to interconnect data centers, campuses and remote offices. Soon these long-distance virtual segments will be able to cross network domains to enable granular routing across hybrid clouds, for example. But it’s not just SDN driving the new WAN. WAN optimization itself is now being optimized. In this issue of The Network Evolution, we learn that WAN optimization and application acceleration can be improved by technology that lets admins prioritize applications and data according to user identity, location, time of day and other factors. ...
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Features in this issue
IT teams are setting WAN optimization policy that takes into account user, location and application type.
Ethernet-dedicated Internet is a continuous, high-bandwidth way for enterprises to connect their LANs to the public Internet and to streamline the performance of their WAN.
Network hardware providers and third-party vendors have very different WAN security offerings. How do you choose?
Columns in this issue
In the new WAN, we’ll see the rise of WAN virtualization, user-aware optimization and a move toward hosted WAN services.
SDN could make the WAN flexible enough for dynamic network virtualization, but first engineers must address a myriad of challenges.