Which Cisco SD-WAN feature segments traffic into isolated VPN instances identified by VPN IDs?

• A. OMP reflection
• B. GRE encapsulation
• C. VPN segmentation
• D. Route dampening

Answer: (C)

VPN segmentation is the mechanism that creates isolated, logical traffic domains within the same Cisco SD-WAN fabric by using separate VPN IDs. Each VPN behaves like its own routing and policy boundary, with its own routing table, ACLs, and security rules, so traffic from one VPN stays isolated from traffic in another. This setup enables multi-tenant or multi-segment networks to share the same physical hardware while maintaining clear separation.

OMP reflection, GRE encapsulation, and route dampening serve other purposes: OMP reflection helps distribute routes between devices, GRE is a tunneling method for carrying traffic, and route dampening reduces instability of routes.