Referring to the diagram above, a federal agency can leverage multiple benefits of SD-WAN as agency applications continue to shift to SaaS, and assuring the requirement is met for TIC transit for those SaaS applications hosted in the public cloud. Leveraging SD-WAN brings several key benefits, including:
● Multiple WAN transport paths, including cost-effective internet, to the regional data center.
● With SaaS application intelligence using Cisco SD-WAN “CloudExpress” at the agency branch, the SD-WAN edge router can make intelligent forwarding decisions, over those WAN paths that meet the applications’ Quality of Experience (QoE) requirements, (Office 365, Amazon Web Services, Google G Suite, etc.) improving overall end-user experience.
● Application aware probing, to the cloud application, to measure loss/latency and application reachability from the various exit points. In this example, application probes can be leveraged at the Government Agency Branch Location, TIC provider location, as well as the regional data center (on federal agency facility or colocation such as Equinix).
The application awareness that the SD-WAN solution offers completely transforms the WAN from forwarding IP packets based on destination IP address/domain names, to forwarding based on application performance in the private data center, public cloud (AWS, Azure, Google), and SaaS providers (Google, Cisco Webex, Microsoft Office 365, etc.)
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