The Promise of SD-WAN
Business Is Moving to Cloud
Packets Took The Best Path – Every Time!
Selecting paths in networks always consists of choosing the route that will deliver the best user experience by minimizing packet losses and latency. Often known as path steering, or path selection, this routing choice is typically made at the application level as each session is initiated.
What if every single packet took the best path every time? Adapting routing policy decisions on-the-fly would solve a lot of problems, and this would even enhance the performance for application sessions already in progress when path conditions get worse. This would lead to minimum packet loss, low latency, and improved overall user experience. SD-WAN makes it possible to use dynamic routing intelligence to deliver these benefits where every packet takes the best path every time.
Business Critical Apps Ran Better
The cloud is not only driving the digital business transformation; it’s fundamentally changing the way people connect with each other and share ideas. As businesses continue to embrace both public and private cloud applications, CIOs are collectively awakening to the reality that their MPLS WAN was not designed to deliver cloud services.
The traditional MPLS WAN was a relatively static network, connected with private circuits that have been plagued by long deployment cycles and high cost per megabit. Most SD-WAN solutions are simply designed to replace your basic WAN requirements for secure branch-to-branch connectivity and private cloud access.
With many companies already facing a new cloud-based reality where public cloud usage has surpassed WAN traffic, which means their SD-WAN must address both WAN and Internet. The important thing to recognize is that not all SD-WAN solutions are created equal. Any SD-WAN solution that does not address your growing public cloud requirements for SaaS applications will be likely outdated before it’s even fully deployed.
The Transition To The Cloud Reduced CAPEX & OPEX
If you compare the costs of MPLS to those of Internet connections, the broadband circuits offer attractive potential savings, costing anywhere from one third to one half of typical MPLS pricing. Even though MPLS prices may be slowly declining, broadband connectivity is becoming even more compelling as its performance gains continue. Internet access speeds of 500Mbps to 1Gbps are now commonly available even to residential consumers, not just businesses, at prices that provided a fraction of that performance just a few years ago.
So how does a business transition from MPLS to Internet connectivity? Software-defined wide area network (SD-WAN) technology enables organizations to efficiently deploy and manage agile, secure networks that leverage inexpensive broadband links. Multiple links from disparate carriers can be seamlessly combined in an SD-WAN configuration to bolster reliability and meet growing bandwidth demand, while often lowering overall cost.
In addition to these ongoing savings for connectivity, SD-WAN also enables both OPEX and CAPEX reductions for deployment and ongoing maintenance. Zero-touch, cloud-managed provisioning minimizes the need for on-site IT staff for branch office installations and maintenance, while the virtualization of network functions reduces the hardware needed at each location. Meanwhile, cloud-based orchestration allows IT personnel to monitor, manage and troubleshoot network usage and performance at remote sites from a central location, simplifying and reducing the cost of supporting those branches.
Every Connection Was Encrypted and Secure
Security has always been a major consideration when architecting enterprise networks. Key overarching trends such as Bring Your Own Device (BYOD), mobility, and cloud computing have forced most organizations to reevaluate and refocus on critical areas of their IT infrastructure, and network security continues to be one of their highest priorities. Of course, you want your site-to-site traffic to be safe and free from attacks. Intrusions on unencrypted and weak networks are increasingly common, and while the extensive media coverage given to high-profile breaches may seem like sensationalism, it’s often rooted in fact.
MPLS has been very useful for keeping enterprises’ connections between sites secure, but the exploding interest in SD-WAN technology, which use the public broadband Internet, has people investigating the security capabilities of these emerging solutions. What if your network could be fully secured, from end-to-end?
Putting all other pros and cons of MPLS versus SD-WAN aside, the most important question for many enterprises is simply: “How safe is SD-WAN?” In the case of MPLS-based networks, security between sites is not a big problem since they are based on private infrastructure, with no traffic from the outside coming in or interfering. MPLS traffic throughout the enterprise does not traverse public space, so there is no need for encryption. One of the major challenges faced by enterprises worldwide, however, is the constant increase in the number of public cloud applications affecting the policy configuration of their security setups.
New Sites Took Minutes vs. Days
As enterprises move to digital business, there have been significant advancements made in flexibility and agility in the data center through software-defined approaches such as virtualization. However, one part of IT that has yet to evolve to provide the same level of flexibility and agility is the wide-area network.
Evolving the WAN should be at the top of every business leader’s priority list because enterprises will only be as agile as their least agile component—today, that is the WAN. If digital businesses are going ever to reach the level of agility required to compete in today’s rapidly evolving application-centric world, now is the time for the WAN to adopt a Software-Defined WAN (SD-WAN). One of the key attributes required is velocity and speed in wide area network deployment.
What If, You Could Go From Months To About A Week To Obtain A Circuit. And, Days To Minutes To Install Each Site?
SD-WAN Buyer’s Guide
CIO’s and industry analysts agree the time is now for SD-WAN, but with all the marketing hype it’s hard to differentiate among various solutions. Our free buyer’s guide provides a framework for SD-WAN evaluation, including a complete market taxonomy with insights and questions that every customer should be asking about SD-WAN.