SD-WAN upends this model by using devices that are configured, managed, and monitored centrally through a controller. This controller acts as the central source of truth for the network, and is responsible for distributing configuration changes throughout the network to each device. SD-WAN is considered “software-defined” because these solutions often have programmatic interfaces for configuration, management, and monitoring, as opposed to legacy CLIs and protocols.
SD-WAN solutions simplify configuration, management, and monitoring by providing a single interface for the network through the controller. With SD-WAN, you no longer have to perform these functions discretely at each device. And, when you need to see what’s happening on the network, you have a single pane of glass to do it.
SD-WAN solutions often include security capabilities built in, such as a firewall, and virtually all of them establish VPN connections amongst sites automatically.
CloudGenix AppFabric goes a step beyond by aligning business policies with WAN policy and application-centricity to provide the best possible user experience, easiest integration of the cloud, and the best economics and simplicity.
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