I (try to) run a WISP and have five APs covering my neighborhood, but this question focuses on one area, the main AP (which serves the other multipoints in an omni radius). This main point is an Engenius 3220-ext AP that uses Access Control to allow only certain users (APs or Client Bridges) via MAC address.
The system is fed by a T1 line through an Adtran NetVanta 3430. The Adtran has no QoS policy enforced.
I installed PRTG Traffic Grapher on a server and monitor the main APs for latency and bandwidth. The graphs have revealed that when any single user grabs 300k or more of the bandwidth, other users experience service disruption. Bandwidth use directly correlates with latency.
Two questions then:
1. what is(are) the best tool(s) to use to find out what kind of traffic is causing the bottleneck and where it comes from?
2. Can anyone suggest a QoS reference for an Adtran NetVanta, or would volunteer to help?