network flexibility and efficiency—SD-WAN

  • The WAN is typically used to connect multiple business locations, such as headquarters and branch offices, to provide a point-to-point private network that allows applications to share applications and materials. For the management of the WAN, if the traditional method is used to manage the WAN endpoints separately, it is very complicated. At present, everyone tends to software-defined WAN (SD-WAN) technology, a centralized controller and some software applications can cover the entire WAN. The SD-WAN architecture is an attractive option because the deployment, configuration, and management of remote connections can be greatly improved, and some even provide zero-touch configurations.

    Initially, most companies simply added software coverage to the WAN connection. However, over time, due to the easy-to-configure capabilities of the SD-WAN architecture, enterprises will begin to adopt more complex features of SD-WAN.

    In the past, WAN connectivity was based on Multiprotocol Label Switching (MPLS), a very expensive technology with limited bandwidth but excellent quality of service (QoS). However, there are many links that do not require high QoS traffic, such as web content, file sharing, and email. In addition, all branch office data needs to be backhauled in each direction of the WAN under this mechanism, increasing costs and delays. Therefore, removing this data from the MPLS link can reduce the cost of data transmission and free up bandwidth for more critical applications. There is a lot of work to do to optimize the WAN connection using the SD-WAN architecture.

    Read More; SD-WAN Market Factors