Software-Defined Wide Area Networks – better known as SD-WAN.
As those with experience can tell you, constructing, deploying, andmaintaining a Wide
Area Network (WAN) can be a tricky bit of business. Organizations with multiple
branches need WANs to transfer data over long distances to keep productivity levels
high and otherwise optimize their operations. Traditionally—i.e. over the last 20 or so
years—innovation and maintenance within a WAN framework meant installing and
configuring expensive equipment that would eventually become obsolete. With the
advent of Software-Defined WANs in the past couple of years, this process has become
less burdensome to users.
What Are SD-WANs?
The textbook definition of Software-Defined WANs is a little hard to pin down because
there are so many ways to implement and customize them. Essentially, SD-WANs
simplify the connections of the network. By decoupling a WAN from the hardware and
virtualizing the controls, organizations can improve the management and operation of
the network while simultaneously lowering costs. SD-WANs can handle various types of
connections, including MPLS and broadband. Bundling these connections allows sites
with fewer resources and less sophisticated infrastructure in place to utilize things that
might not be available to them otherwise, such as Voice over Internet Protocol (VoIP).
This fact allows organizations to streamline communications between multiple branches.
The interest garnered by SD-WAN is due to the myriad advantages it holds over current
standards. Overall, the technology simplifies WANs without sacrificing security or quality:
Reduced Cost–Internet circuits are much less expensive than MPLS, the
standard for WANs today—switching can cut costs by about two-thirds. Even
creating a hybrid network that employs both MPLS and Internet connections can
reduce the monetary burden on an organization and speed up connections.
SD-WAN technology permits the management of its various branches from a single location,
unlike MPLS, which would require the physical configuration of each site in the event of an
More Comprehensive Security
SD-WANs use Internet Protocol Security (IPsec)
to authenticate data transferred between users and networks.
High Quality of Service
SD-WAN technology supports application level awareness. This gives preference to priority applications, thus increasing speed where it is most needed.
Why You Should Take Note
According to an article by Andrew Lerner, a VP in Gartner Research, the world’s leading
IT research company, we can expect 30% of enterprises to deploy SD-WAN technology
in their branches by 2019. IDC also sees a trend. By 2020, revenues generated by SD-
WAN tech will reach $6 billion. Their survey also revealed that about 70% of companies
interested in the technology expect to deploy within 18 months. SD-WAN technology is
a growing trend that can help businesses and organizations with multiple locations get
more out of their WAN.
There is no better time to deploy this new technology. Over the next couple of years,
SD-WAN technology will become increasingly more common, which means a fluctuation
in pricing. Even so, the value that it offers outweighs any increase in cost.
As the founder of nQuery Technology Solutions, Emilio Diaz uses his 20+ years of
experience in the technology business to help build cost-effective business solutions for
businesses, nonprofit organizations, and government institutions. His experience as an
innovative technology entrepreneur and a long-term business owner gives him intuitive
insight to help boost productivity and maximize future growth. You can reach Emilio at
firstname.lastname@example.org or call 305-760-8491.
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