The most common SD-WAN deployment model includes vendor-branded hardware known as SD-WAN edges, but there are also virtual options for the cloud. The edge replaces service provider handoffs – Ethernet, LTE, T1 – and offers routing or switching access to the branch infrastructure.
Network Function Virtualization (NFV) is another deployment model, where virtualization and white box compute platforms are combined. Regardless of deployment model, a physical networking element is required to connect back to the SD-WAN edge. The SD-WAN device must also provide the functionality needed to incorporate the branch into the WAN and the rest of the network.
What are the benefits of SD-WAN?
Organizations are now requiring a higher level of agility than what traditional WAN designs offer. With SD-WAN technology, businesses can instantly realize benefits such as secure connectivity and endpoint management, transport and hardware independence, bandwidth efficiency, improved application performance and simplified IT operations.
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