Tracking DFS radar events


Is there a way to get all of the DFS Radar events that cause APs to change channel? I'm trying out a 40MHz-wide 5GHz channel plan with DFS channels, and I've noticed them happening (thanks to the "ch 100" changing to "ch 60" in the config). I can also view them by going to the AP log on the controller, but I'd have to do that one by one, which is not so great with 180 APs.

It'd also be good to aggregate the DCS monitor reports so I can view them all at once. And maybe a way to report on APs with different ch and ch_req in the configuration.

The new Nearby AP report in 9.21 has been a godsend in terms of channel planning, so thanks for that.

5 replies

Userlevel 5
Hello James. Since 9.21 any DFS event sent out , so if you using NMS (or any other snmp management system) you can configure email or other form of notification. Here is example of what notification I am getting from my NetSight in case of DFS event : Subject: NetSight Warning Alarm: AP DFS Channel Timeout Device: Severity: Warning Message: EWC[212.54.150.118]: AP Serial Number 1225009790410000: 06/29/15 16:29:54: Radar found on channel 5500Mhz
Ostrovsky, Yury wrote:

Hello James. Since 9.21 any DFS event sent out , so if you using NMS (or any other snmp management system) you can configure email or other form of notification. Here is example of what notification I am getting from my NetSight in case of DFS event : Subject: NetSight Warning Alarm: AP DFS Channel Timeout Device: Severity: Warning Message: EWC[212.54.150.118]: AP Serial Number 1225009790410000: 06/29/15 16:29:54: Radar found on channel 5500Mhz

Hi Yuri, where in NetSight can I view these events? I can see interference events from my guardian APs, so some information is coming across.
Ostrovsky, Yury wrote:

Hello James. Since 9.21 any DFS event sent out , so if you using NMS (or any other snmp management system) you can configure email or other form of notification. Here is example of what notification I am getting from my NetSight in case of DFS event : Subject: NetSight Warning Alarm: AP DFS Channel Timeout Device: Severity: Warning Message: EWC[212.54.150.118]: AP Serial Number 1225009790410000: 06/29/15 16:29:54: Radar found on channel 5500Mhz

Well hello Yury! I was just wondering the same thing. So thanks for this!
Userlevel 5
Ostrovsky, Yury wrote:

Hello James. Since 9.21 any DFS event sent out , so if you using NMS (or any other snmp management system) you can configure email or other form of notification. Here is example of what notification I am getting from my NetSight in case of DFS event : Subject: NetSight Warning Alarm: AP DFS Channel Timeout Device: Severity: Warning Message: EWC[212.54.150.118]: AP Serial Number 1225009790410000: 06/29/15 16:29:54: Radar found on channel 5500Mhz

James , Jeremy , I just made a small doc step-by-step how you can create DFS notification with OneView - please see it here
How to create an email notification for DFS Events in NetSight
Let me know if you have any problem getting such email notification
Userlevel 7
Reference: https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-create-an-email-notification-for-DF...

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