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Let’s Talk about SD-WAN for Critical Network Redundancy
Technology - May 1st, 2019
Enterprises have long relied on major carriers to maintain and optimize data networks
spanning long distances. These traditional Wide Area Networks (WANs) have met most
needs in the past, but are not ideal for today’s cloud-driven SaaS software
Likewise, conventional approaches to WAN architecture can leave small and mid-sized
enterprises in the lurch whenever major carriers experience problems. Technical
issues SMB clients have no control over can hamstring their operations for days at a
This can cost companies millions of dollars. Even when the direct losses aren’t
severe, there are knock-on effects. Your clients may believe that they cannot rely
on you for reasons beyond your control. This threatens renewal rates and revenue.
Software-Defined Wide Area Networks (SD-WANs) can protect your business.
SD-WAN architecture delivers critical redundancy to keep your network going.
• More cost-effective than conventional Wide Area Networks.
• Less reliant on proprietary hardware devices to transmit data.
• Faster and more versatile in delivery of SaaS functionalities.
• More robust and scalable due to its rules-based automation.
In effect, SD-WAN defends you against “worst case scenarios” in data performance and
Let’s take a closer look.
What is SD-WAN and Why Is It Necessary?
Today’s networks are reaching the limits of their capacity. As more people and
enterprises have gone online, they have introduced massive volumes and velocity of
data. Application performance is falling.
The old-fashioned approach to this problem was to introduce improvements in physical
architecture that would expand bandwidth and accelerate data transmission. This
paradigm brought vital improvements to networking, not least the shift from copper
wiring to fiber optic.
To evolve further, however, a shift in the underlying logic of network optimization
Traditional WAN implementation connected a campus or office to software applications
that “lived” on high-powered servers in a distant location. Applying this worldview
to the distributed software delivery model of today has led to unpredictability and
SD-WAN changes the equation.
It allows you to manage multiple data types and connections from a single interface,
optimizing and aggregating links so bandwidth is available on demand to
decentralized applications. This eliminates the need to individually define
bandwidth allocations to locations or applications.
The biggest benefit: Critical network redundancy. When key resources are managed by
SD-WAN, they are protected from major performance degradation resulting from loss of
a single hardware or software device.
SD-WAN Enhances Performance at All Levels
SD-WAN is a major part of the trend toward Software-Defined Networking (SDN), where
AI facilitates goals set by network leaders. While SDN represents a broad
architecture and philosophy, however, SD-WAN is a technology businesses can buy and
It strengthens network redundancy at all levels
Less Exposure to External Network Risks
Risk reduction is the core goal of any network redundancy plan. SD-WAN facilitates
business continuity by doing away with the resource bottlenecks inherent in
traditional network design. No matter what’s happening “out there,” your connections
can remain safe and stable.
Less Hardware to Upgrade and Maintain
Implementing SD-WAN allows many enterprises to save millions on network equipment. It
is no longer necessary to separately buy, maintain, and synthesize services from
routers, optimizers, path controllers, firewalls, and more. With this simplicity
comes far fewer points of fault.
Fast Adjustment of Network Resources
SD-WAN makes networks more granular and responsive to change. It abstracts away the
tedious and error-prone network optimization tasks of the past. Strategic IT leaders
can quickly adjust network behaviour on the highest plane and performance benefits
flow across the system.
Before crisis strikes your network, implement SD-WAN for critical network redundancy.