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Field Trial Readiness
∆Q demo measurement examples
September 2017
Made with the support and assistance of Predictable Network Solutions Ltd
UPSTREAM DSL
DOWNSTREAM DSL
WiFi Ethernet
4G MOBILE HOTSPOT
WiFi + DSL
ETHERNET + DSL
STAINES TO LONDON
STAINES TO DUBLIN
DOWNSTREAM CONTENTION AT 6PM
DOWNSTREAM CONTENTION AT 1AM
PERIODIC DELAY BURSTS
PERFORMANCE ‘HICCUP’
TRANSIENT LOAD ANOMALY
WIFI SCANNING EVERY 10 SECS
SERVICE PERFORMANCE COLLAPSE
MEASUREMENT SYSTEM ARTEFACT
DUE TO CLOCK DRIFT
(NOTE SCALE – THOUSANDTHS OF SECOND!)
EMERGENT DOWNSTREAM
SERVICE INSTABILITY AT 1AM

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Example high-fidelity network measures using ∆Q metrics