In 2019, it was made
clear that SD-WAN is now being seen as the future of enterprise Wide Area
Network (WAN) connectivity. With the rapid adoption of cloud services and
applications, a significant amount of business traffic is moving over public
internet instead of staying in the company’s Wide Area Network as it used to
be. SD-WAN becomes the hub of many internet and WAN circuits simultaneously to
dynamically direct traffic across the best, less congested pathway. By checking
the quality connections and the speed at which a specific type of traffic will
reach its destination when traveling over a pathway, it determines the optimal
pathway.
SD-WAN works by
separating applications from the underlying network services with a
policy-based, virtual overlay. The overlay monitors real-time performance
characteristics of the underlying networks, it then selects the optimum network
for each application based on configuration policies. By monitoring the
performance of the networks, SD-WAN can direct traffic over the most efficient
route available, it might be the company's MPLS line or a 4G LTE connection. If
any of these connections are lost SD-WAN will automatically reroute traffic
over any alternative circuits so that session-based applications such as VoIP
calls are not interrupted.
SD-WAN offers dozens or
hundreds of ways to map application prioritization compared to a handful of
options for tagging and mapping MPLS traffic. SD-WAN is capable of identifying
hundreds to thousands of applications and can map these applications into
queues.
Devices such as
tablets, smart phones, and computers are connected to networks in your personal
space like your office or home by LANs (Local Area Networks). These various
personal spaces situated in different geographical locations around the globe
remain connected with WANs. As it works in companies, WANs grow on SDNs while
facilitating the interconnection of every company in different locations in
order for each branch to stay linked together and ease the flow of data
traffic.
Though a connection
among branches of a company can be achieved by using the traditional broadband
internet connectivity, the company's data flow will fully rely on internet used
by the general public. A company’s data flow may contain sensitive information
about a company. This is the reason VoIP services like Ooma constantly ensure
that an exclusive connection is made to their network in order extricate the unfavorable
impact associated with internet traffic and its effect on QoS and the quality
of voice. Due to the need arising for a private connection, WANs that are
capable of providing better traffic priority like those provided by MPLS
connections, which is now being provided by SD-WAN vendors and companies. For
more information about SD-WAN network, browse this site.
SD-WAN provides
streamlined network management, no software or hardware components need to be
deployed from each remote site, every networking tool is consolidated into a
policy-driven, centralized management interface. SD-WAN can increase your
network performance and agility. In modern-day business connectivity is key.
Since SD-WAN can automatically route traffic through the fastest connection,
network issues like jittery and latency are reduced.
