What is AppQoE, and why it matters for your SD-WAN

Application Quality of Experience (AppQoE) is a core capability of modern SD-WAN, designed to keep your most important business applications running smoothly — even when the underlying network conditions change. Rather than treating every WAN link the same, AppQoE continuously monitors performance and reacts in real time to protect the applications your business depends on.

How AppQoE works

Traditional routing sends traffic down a static path regardless of how that link is actually performing. AppQoE takes a different approach:

• Continuous link monitoring — measuring latency, jitter and packet loss on every available WAN path, in real time.
• Application-aware routing — identifying which application is generating the traffic (voice, video, ERP, cloud apps) and applying the right policy to it.
• Automatic path remediation — instantly steering traffic away from a degraded link onto a healthier one, without dropping the session.
• Forward error correction & packet duplication — for the most sensitive traffic, proactively protecting against loss rather than just reacting to it.

Why it matters for your business

Even small amounts of latency, jitter or packet loss can be highly disruptive to real-time applications like voice and video calling, while barely being noticeable for general web browsing. AppQoE ensures your bandwidth and remediation effort are prioritised where they matter most:

• Reliable VoIP & video conferencing — calls stay clear even during a degraded broadband or mobile link.
• Consistent cloud & SaaS performance — business-critical apps like Microsoft 365 and cloud ERP get prioritised, low-latency paths.
• Resilience by design — a failing circuit is worked around automatically, often before your team even notices.
• Better use of every link — including lower-cost broadband and 4G/5G backup circuits alongside premium leased lines.

AppQoE as part of Stream's SD-WAN

Our SD-WAN as a Service builds AppQoE into every deployment, combining multiple underlying connections — from fibre leased lines through to 4G/5G mobile backup — into a single, application-aware overlay network. Traffic is continuously steered to the best-performing path, giving your business consistent performance without manual intervention.