Software-Defined Wide Area Networking (SD-WAN) is a new innovative way to provide optimal application performance by redefining branch office networking. Unlike traditional expensive private WAN connection technologies such as MPLS, etc., SD-WAN delivers increased network performance and cost reduction. SD-WAN solution decouple network software services from the underlying hardware via software abstraction.
Last Mile Connectivity challenge:
If you are a SD-WAN provider you may have an efficient SDN-Cloud based SD-WAN infrastructure, but the real challenge is the connectivity between your clients (SD-WAN subscribers/users Branch Office Edge Devices/CPE) and your Cloud Infrastructure. This last mile connectivity bottleneck can be addressed via TOFFEE-DataCenter as shown below.
NOTE: In this case let us assume you (the SD-WAN service provider) have a client/subscriber who got high-speed network connectivity between their corporate headquarters(may be situated in a data-center, etc) and your SD-WAN Cloud Infrastructure. But they have various other remote branch-offices with extremely poor high-latency Internet/network connectivity.
SD-WAN Infrastructure using TOFFEE-DataCenter as one of its building components:
Along with VPN modules/components you can even use TOFFEE-DataCenter as one of the building blocks within your SD-WAN Infrastructure.
Here is my short video on SD-WAN product architecture and its internal foundational VPN Networks with which the core SD-WAN product is built upon. As with any VPN network this will inturn makes the overall SD-WAN connected networks inefficient due to fundamental VPN encapsulation overheads. Hence to mitigate the same it is crucial to perform WAN Optimization on the same to compensate VPN overheads and thus improve the efficiency of the SD-WAN network.