Question

A network engineer is enabling Cloud OnRamp for SaaS on a branch WAN Edge router that has two Direct Internet Access (DIA) transport interfaces. The engineer wants Cisco Catalyst SD-WAN Manager to continuously evaluate the quality of each internet path to a monitored SaaS application and automatically steer application traffic out the interface with the best experience. Which mechanism does Cloud OnRamp for SaaS use on the WAN Edge to make this per-application path decision?

Accepted Answer

Cloud application probes (HTTP/HTTPS probing to the SaaS endpoint) that compute a Viptela Quality of Experience (vQoE) score per interface

Answer

BFD echo sessions between the WAN Edge and the SD-WAN Controller that measure loss and latency across each transport

Answer

A centralized control policy on the vSmart controller that statically pins the SaaS prefix to the primary DIA interface

Answer

OMP route metrics advertised by the SaaS provider that indicate the least-cost path to the application