I'm in Indonesia, where I use Cisco SD-WAN for DC and DRC to communicate with bank branches. One customer uses traditional simple routing via VGP or SPF to communicate to the head office data center or disaster recovery center. Still, I proposed using SDN technology, Cisco SD-WAN, to improve the application experience, have visibility to the provider link, and communicate directly from the branches to the application, such as Microsoft 365.
The customer also wants to access an application in the cloud from the branches, which requires a proxy, so the traffic goes to the data center and then to the cloud. You can directly connect all components to the cloud with Cisco SD-WAN, so I've implemented the product for the customer.
The primary use case for Cisco SD-WAN is direct internet access, including onboard security. Customers don't want just a simple routing. Customers also want a firewall and IPS feature from Cisco SD-WAN.
One of the benefits of Cisco SD-WAN is cost reduction for customers. In Indonesia, it's costly to use NPLS and Metro for connection, so I always propose using an internet link to communicate between branches to the data center or disaster recovery center. Cisco SD-WAN can provide that service; the product also keeps traffic secure. Some customers may be afraid to use the internet link or connection to communicate between the branches and the data center because of some critical applications, so it may not be the best practice for some customers.
However, as my company is a partner of Cisco, I give the customer the PLC first before providing the solution, and I have customers happy about what I propose, in this case, Cisco SD-WAN.
If a customer wants access to cloud-based collaboration apps, such as WebEx, Google Meet, Zoom, and Teams, Cisco SD-WAN can integrate with Cisco Umbrella for cloud security.
With Cisco SD-WAN, customers can enjoy cost reduction. Customers also don't need to use a third-party DNS or process security solution because Cisco SD-WAN integrates with Cisco Umbrella. This is how beneficial Cisco SD-WAN is to an organization or business.