Hi Guys,
we have a VHD scenario with 200 AP in a football arena. We had some critical issue with DFS only during match.
The configuration is following the VRD for VHD Scenario suggested by Aruba.
After the RF planning and static channel allocation, we have tested the overall RF behaviour. We have identified that some channels were subject to frequent DFS events (probably weather radar on ch 120,124). In order to avoid trouble we have modified our RF planning excluding those channels.
The RF part was running fine until a lot of people began to connect to the infrastructure. When the number of people connected increased, the cases of radar detect increased dramaticallly and we had about 40 radio in Radar Detect and, due to static allocation, moved into AM mode so not working on 5 Ghz!
Before/after the match we had this rate:
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RATE: 1 Radar Detect/hour
AP involved: 1 AP
Channel hitted: 112
During match
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RATE: 120+ Radar Detect/hours
AP involved: about 60
Channel hitted: 52-56-60-64-100-104-108-112-116-(120-124)-128-132-140
We are thinking that are related to various frames and other craps that are generated in a High Density environment and they trigger signal pattern masks set on the DFS analysis.
We have also tested that during match also indoor AP are experiencing Radar Detect.
Do you have any suggestions? We already open a support ticket but I was wondering if there is a way to inhibit DFS working only during match.
Thanks !!