SD-WAN has rapidly become the standard in enterprise deployments. especially as deployments have moved to the edge. An SD-WAN network can manage multiple types of connections, from LTE to broadband to multiprotocol label switching (MPLS) links. This means that traffic can be routed over the most cost-effective services, such as broadband. Services that require high quality, such as video or voice, or high security, with sensitive information, can still be routed over remaining MPLS lines, although many enterprises are freeing themselves of MPLS entirely. Because of this flexibility, SD-WANs can dramatically lessen the cost and minimise the complexity of traditional WANs.
Given the growing prevalence of SD-WAN in corporate infrastructures and the move to home working driven by the current pandemic, keeping these key networks up and running and providing secure remote access to them is increasingly critical.