I want to prioritize messaging apps (What's App, Skype, etc.) so that anyone using our AP's during heavily congested periods experience snappy performance when messaging. I've added a Classifier Map with all the Messaging Apps as a QoS Class of 3 (Excellent Effort) and I've added this Classifier Map to 'Additional settings' > 'QoS Settings'. However, I have not added a Marker Map. Is a Marker Map necessary? I suspect that QoS packet marking is for the benefit of upstream routers & switches. We don't have any upstream equipment, just a BR200 and AP's. I suspect I would only need a marker map if continuing QoS through the LAN.
someone confirm if I need a Marker Map?