Question

A network administrator has enabled Cisco Catalyst SD-WAN Cloud OnRamp for SaaS to optimize Microsoft 365 traffic across two branch sites, each with a DIA circuit and an MPLS path back to a gateway site. After configuration, the administrator notices that traffic is not being steered to the best-performing path and neither interface shows any differentiated probe measurements (both display the default vQoE indicator) for the M365 application. What is the most likely cause of this behavior?

Accepted Answer

The Cloud OnRamp for SaaS application probing (cloud application feature) has not been enabled on the interfaces, so no loss/latency measurements are being collected to differentiate paths

Answer

The gateway site is configured with a centralized data policy that overrides all vQoE scoring for SaaS applications

Answer

BGP is redistributing the M365 prefixes with equal MED values, forcing ECMP across both paths

Answer

The Microsoft 365 Informed Network Routing telemetry has not been shared with the SD-WAN controller