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SD-WAN 2017: Learning About Its Uses and Benefits SD-WAN or software-defined networking in a wide area network is defined as an approach to designing and deploying an enterprise WAN using software-defined networking to identify the most effective method to route traffic to remote locations. The SD-WAN concept is somehow similar with the virtualization technology software-defined networking implementation, improving data center operation and management. Companies are able to replace expensive private WAN connection technologies like MPLS and use low-cost internet access with SD-WAN. With WAN (wide area networks), businesses or companies are able to extend their computer networks over large geographical distances to be able to connect to their remote branch offices and data centers, and to be able to deliver applications and services required in performing their business functions. Many companies experiences challenges in operation such as packet loss, jitter, networking congestion and service outages when they extend their networks over greater distances and across multiple networks. The modern applications that require low latency include VoIP calling, streaming media, videoconferencing and virtualized desktops and applications. Aside from low latency, there is an increasing need for bandwidth requirements most especially for high-definition (HD) applications. Because of the difficulties associated with network troubleshooting and management, this can result in expensive and difficult WAN capability expansion. SD-WAN products are specially designed to address network problems through enhancement and replacement of conventional branch routers with virtualization appliances, manage application-level policies and provides network overlay and allowing low-cost consumer-grade internet links acting like a dedicated circuit. Branch personnel deal with setup processes easier and simpler. When it comes to SD-WAN products, they can be virtual appliances or physical appliances, placed in small and remote branch offices, corporate data centers, larger offices and cloud platforms. In SD-WAN a centralized controller is used to be able to prioritize traffic and set policies, taking into account the policies and availability of network bandwidth to route traffic. This is to make sure that service level agreements or SLAs are met by applications’ performance.
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The different features of SD-WANs are resilience, quality of service (QoS) and security with simplified troubleshooting and administration, as well as flexible deployment. A resilient SD-WAN must reduce network downtime, automatically switching over to working links with real-time outages detection. In order to gauge the quality of service, bandwidth should be prioritized, and there should be increased application level awareness through dynamic path selection, application sending to faster links and splitting application into two paths for higher and faster performance. If you are looking for a trusted and reliable SD-WAN vendor we are here to help you, feel free to visit our website or contact us directly. It is time to embrace innovation and embrace success with SD-WAN.The Ultimate Guide to Networks