Software-Defined Wide Area Networking (SD-WAN) is a connectivity option that utilizes broadband Internet, LTE/5G, or MPLS access. By centralizing control in the cloud and combining functions at the edge, customers gain greater flexibility and performance combined with better economics. SD-WAN can also be delivered as-a-service, so networking can be consumed the same way as cloud services.
Because SD-WANs are software controlled, it is easier to add features and functions from a central location, while also reducing the need for edge appliances (e.g., WAN optimization and firewall boxes). SD-WANs delivered as a service over a private network also make it possible to deploy a global enterprise WAN without sourcing and procuring MPLS links around the world.
MPLS never got the memo about the speed of business change, because adding new locations can still take weeks, if not months. With SD-WAN, new locations can be brought up in days. What’s more, Aryaka’s Global SD-WAN encrypts traffic end-to-end, which isn’t offered with MPLS and may be an important compliance consideration.
Speed up your applications no matter where they are hosted. An SD-WAN, with built-in WAN optimization, improves performance for all mission-critical applications, hosted on-premises or in the cloud. And if you choose an SD-WAN delivered as a service over a private network, you can realize consistent application response times for users anywhere in the world, and sidestep the performance problems that plague SD-WANs that use internet transport.
Instead of the typical WAN construction model, which requires you to procure, deploy and manage equipment at locations scattered around the world, SD-WANs delivered as a service over a global private network enable you to turn up WAN services just as you do cloud resources, with a click of a button.
MPLS has served enterprise WAN needs reliably for more than two decades, but age is catching up to it. MPLS networks are too expensive and too hard to modify for modern business needs, two of the most critical factors SD-WANs address.
MPLS was designed before cloud services rose to prominence, and typically only provide pipes directly into only a small portion — 1%-2% — of the cloud/SaaS resources available today. SD-WANs can be used to directly access most all cloud/SaaS options.
To overcome MPLS limitations, enterprises typically need to procure and deploy WAN Optimization appliances to achieve desired application performance levels. This counteracts the need to simplify the enterprise WAN and create solutions that are easily portable.
According to Gartner an SD-WAN service must have the following functions at a minimum.
Supports multiple transport technologies – like Internet, MPLS, LTE etc
Supports dynamic path selection
Robust Management layer – Allowing for easy management of WAN
Supports VPN and other functions like WAN optimization, firewalls, web gateways etc
There are dozens of companies offering SD-WAN solutions. Broadly, these solutions fall into 3 different types of architectures – Carrier SD-WAN, Overlay SD-WAN and a Cloud-First SD-WAN.Read More >
From CapEx and OpEx savings to operational simplicity, SD-WAN has a number of benefits over the traditional enterprise WAN. Cloud connectivity, application performance and security are some of the other areas that benefit from a well-designed SD-WAN solution.Read More >
The Cloud-First WAN is a new approach to the enterprise WAN designed to meet the needs of the Cloud-First enterprise. The new offerings cover areas including connectivity, application acceleration, cloud, security and analytics, all brought together seamlessly, and “as-a-service.”Read More >
What IT Leaders Should Know About the SD-WAN Market
Read this white paper to understand industry analysts’ predictions about the growth of the SD-WAN market and why they matter to IT leaders preparing for digital transformation initiatives.