ChannelVision September - October 2016

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trolled centrally. SD-WAN solutions can detect and com-
pensate for issues such as packet loss and latency, but
its decisions are made by intelligence on the edge. It can
automatically choose the best path among all available
paths, and if a connection is showing packet loss, jitter or
delay, it can choose another path or avoid that one alto-
gether. That’s not the same as ensuring quality of service
across the entire route on a best-effort-based broadband
link. So it’s likely corporate network managers will choose
to keep a MPLS link in parallel with their broadband for
more-sensitive, real-time traffic (voice, video), as many
SD-WAN providers recommend.
Of course, there is still the opportunity to lower over-
all cost of network ownership through better utilization
of resources. So it would be wise for network pros to
understand the benefits of increased flexibility, simplified
management and improved security that SD-WAN solu-
tions afford. As networks sprawl across multiple data links,
devices and remote employees, it’s no surprise there is
exciting about a development that centralizes network
control and operations.
All the while, SD-WAN certainly can, and will, lower the
dependency on a given access technology and, one could
argue, “private” links in general. Buyers will likely use it
that way. We’re just not so sure, as yet, that SD-WAN re-
places the need for any of them.
(Continued from page 28)
90 ChannelVision | September - October, 2016