What is SD-WAN?


Traditionally, a proxy server at the head office has been the most common way for businesses to use the Internet safely. However, as business use of IT equipment such as PCs and smartphones expands, network traffic is increasing.

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In addition, the recent development of telework environments and the use of cloud services have had a major impact on the operation and management costs of secure network connections. Therefore, "SD-WAN" (software-defined wide area network) is attracting attention. In this column, I will explain what SD-WAN is in the first place, and "Internet breakout" which is one of the major functions realized by SD-WAN.

How SD WAN works

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