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CIOs-Guide-to-SD-WAN

Executive Summary

Digital transformation is driving organizations to fully embrace cloud native platforms and applications, including Salesforce, SAP Business ByDesign, WebEx, AWS, Office 365, Google, and a host of specialized applications. WAN traffic growth and changing traffic patterns (towards the cloud) are driving new requirements for global networks – and making traditional MPLS connections obsolete. Global organizations require fast, secure, reliable connections to all of their remote branch locations.

Leading IT organizations are embracing the power of SD-WAN to reduce costs and deliver predictable application performance. Managed and As-a-Service SD-WAN solutions can ease the pain of deploying, managing, and troubleshooting WAN links in remote locations. Globally distributed organizations require SD-WAN solutions which provide secure, low latency, reliable connectivity as well as fast and consistent application performance. Aryaka’s global SD-WAN solution is easy to deploy, cost effective as compared to MPLS, and provides fast and consistent performance for both cloud-based and on-premises applications.

Changing Global WAN Requirements

Digital business initiatives are now a standard part of the efficient delivery of goods/services and are increasing the requirement for high customer satisfaction for all vertical industries. These organizations are rapidly expanding into new locations and closing old locations as part of restructuring operations. As part of this digital transformation, organizations have rapidly adopted cloud-based solutions, both as platforms for compute and storage and to deliver business critical applications. As a result, most organizations are now dependent on reliable, secure, and fast access to cloud-based services, including the most popular ones such as AWS, Google, Microsoft, Salesforce, etc. and a host of cloud applications specific to an industry vertical or job function.

The migration to the cloud has increased bandwidth requirements and radically altered WAN traffic patterns. In many organizations the majority of traffic from remote and branch locations is destined to the Internet, not the corporate data center. This means the next generation WAN solutions require new architectural approaches and that traditional hub-spoke MPLS networks are rapidly becoming obsolete.

The challenge for IT organizations is to deploy global networks that deliver a consistently good user experience – one with reliable and rapid access to their critical data and applications. From a technology perspective, this requires WANs with the predictability and security associated with MPLS and the availability, bandwidth, and cost effectiveness of Internet services. The next generation WAN must move beyond the limitations of MPLS (high cost, poor links to the cloud, long deployment times) and fix the problems with Internet connectivity with regards to unpredictable latency, poor application performance, and weak security.

SD-WAN solutions are rapidly being deployed by distributed organizations to deliver WAN solutions with high bandwidth, low latency access to cloud-based applications with strong security. SD-WAN can deliver predictable access independent of device, location, and application (cloud or premise). Managed and As-a-Service SD-WAN solutions ease the pain of do-it-yourself deployments and provide rapid deployment for global organizations.

Building a global SD-WAN

SD-WAN is a relatively new technology which can be challenging to architect and implement across a global network – especially given the need to rapidly connect locations at a moment’s notice. IT organizations must negotiate with CSPs delivering WAN transport solutions across the globe – for different types of services (MPLS and Internet), transport speeds, SLAs, and costs. They also must integrate SD-WAN solutions with existing network and security gear, including routers, WAN optimization, and firewalls. And, of course, IT personnel must learn a new set of management tools – which usually operate independently of existing WAN solutions.

Using the Internet alone as the underlying transport for SD-WANs can offer a low-cost, flexible and rapid deployment option for regional scenarios, but relying on SD-WANs using only Internet links in a global deployment can adversely affect user experience and productivity since application performance deteriorates with an increase in distance. Latency, packet loss and jitter are inherent to the Internet and these issues are exaggerated when data must travel further.

IT leaders in global distributed organizations should consider the following when deploying SD-WAN solutions:

  • Secure, high performance access to cloud and SaaS applications
  • Ability to support high speed connectivity to all locations and users
  • Reliable network transport with uptime SLAs
  • WAN Optimization to optimize performance for all applications
  • Rapid deployment for new locations
  • End-to-end multi-layered security functionality

In addition, the solution must be easy to deploy, scale, and provide excellent visibility into application performance.

Aryaka Provides Global SD-WAN for Global Enterprises

Aryaka’s Global SD-WAN is a SD-WAN solution designed for global enterprises as it combines SD-WAN technology with a global cloud-native private network and WAN Optimization. Over 700 global enterprises leverage Aryaka to replace their legacy MPLS-based connectivity.

The core of Aryaka’s global SD-WAN is a global private network with 28 points of presence (POPs) across six continents, less than 30 milliseconds away from 95% of the world’s business users. These POPs are interconnected by a backbone of private network connections delivered by top service providers. Aryaka’s global backbone delivers private L2 network transport with built-in cloud and SaaS connectivity. On top of this global network, Aryaka integrates SD-WAN technology, WAN optimization, content delivery network (CDN) functionality, mobile application acceleration, and connectivity to cloud platforms. See Figure 1.

Figure 1

global SD-WAN

Aryaka’s global SD-WAN is delivered as a service, reducing costs compared to legacy solutions like MPLS. Deployment of the Aryaka solution at a customer site takes hours or days compared to the months that it takes to set up MPLS.

Recommendations for IT Executives

Digital transformation is driving the increased use of cloud-based applications for remote compute/storage, office software, UC and conferencing, and a plethora of specialized SaaS-based applications. The rise of the cloud is changing the WAN requirements for global networks in terms of requirements for more bandwidth, improved security, and rapid access to SaaS applications.

SD-WAN has emerged as the primary solution to deliver cost effective, predictable performance for distributed, cloud-based applications. Global organizations require SD-WAN solutions to deliver application performance for all of their remote locations. SD-WAN solutions should deliver high performance for cloud-based applications, be secure, easy to install and monitor, and support WAN optimization. Aryaka’s global SD-WAN solution is easy to deploy, cost effective as compared to MPLS, provides faster and more predictable performance for cloud-based as well as on-premises applications.

Meet the Author

Lee Doyle is Principal Analyst at Doyle Research, providing client focused targeted analysis on the Evolution of Intelligent Networks. He has over 25 years’ experience analyzing the IT, network, and telecom markets. Lee has written extensively on such topics as SDN, NFV, enterprise adoption of networking technologies, and IT-Telecom convergence. Before founding Doyle Research, Lee was Group VP for Network, Telecom, and Security research at IDC. Lee contributes to such industry periodicals as Network World, Light Reading, and Tech Target. Lee holds a B.A. in Economics from Williams College.

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