What does SD-WAN mean?
Programmable Wide Area Network (SD-WAN) technology is used to distribute traffic over wide area networks ( WANs ).
It is based on the rules of programmable networks ( SDN , "Software-Defined Networking") to automatically determine the most efficient route between the various data centers and remote sites.
In most cases, a transport independent virtual layer is superimposed: it makes transparent the underlying connections of the public or private WAN, such as MPLS , broadband Internet, fiber, wireless or evolution. long term ( LTE , Long Term Evolution).
Without modifying the existing WAN links within the company, the superimposed programmable wide area network will use the various tunnels, to optimize the bandwidth , by directing the WAN traffic to the best route between the various data centers and remote sites. This SD-WAN technology centralizes network control and manages traffic over these links in real time and flexibly.
A centralized controller manages the programmable wide area network. With this software, IT teams can remotely program connected peripheral devices and reduce provisioning times. This makes it less necessary, if not unnecessary, to manually configure traditional routers at remote sites.