Question

A network engineer is enabling Cisco Catalyst SD-WAN Cloud OnRamp for SaaS to optimize Webex for a large branch. The branch WAN edge router has two DIA transport interfaces (biz-internet and public-internet), and the engineer has already defined Webex as a monitored cloud application. During validation, the engineer notices that only one interface is actively forwarding Webex traffic even though both are up. What determines which interface Cloud OnRamp for SaaS selects to carry the SaaS application traffic?

Accepted Answer

The interface whose cloud application probe measures the best performance (loss and latency to the SaaS endpoint, surfaced as a vQoE score) is selected as the active path.

Answer

The interface with the highest configured bandwidth in the interface template is always chosen for SaaS traffic.

Answer

The interface with the lowest OMP administrative distance is preferred for all SaaS-bound flows.

Answer

SaaS traffic is always load-balanced equally across all DIA interfaces regardless of application performance.