A repeated radar event on the MAP (radar triggers once, and then almost immediately again), causes the
MAP to disconnect.
Note
Preparation in a DFS Environment
This section describes how to prepare in a DFS environment:
• To verify that your controller is set to the correct country domain, enter the following command:
(Cisco Controller) > show country
• To check the mesh access point country and the channel setting on the controller, enter the following
command:
(Cisco Controller)> show ap config 802.11a ap-name
• To identify channels available for mesh, enter the following command:
(Cisco Controller)> show ap config 802.11a ap-name
Look for the allowed channel list.
Allowed Channel List....................... 100,104,108,112,116,120,124,
......................................... 128,132,136,140
• To identify channels available for mesh on the AP console (or use remote debug from the controller,
enter the following command:
ap1520-rap # show mesh channels
HW: Dot11Radio1, Channels:
100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
An asterisk next to a channel indicates that radar has been seen on the channel.
• To invoke remote debug, enter the following commands:
(Cisco Controller) > debug ap enable ap-name
(Cisco Controller) > debug ap command command ap-name
• Debug commands to see radar detection and past radar detections on the DFS channel are as follows:
show mesh dfs channel channel-number
show mesh dfs history
Information similar to the following appears.
ap1520-rap # show mesh dfs channel 132
Channel 132 is available
Cisco Mesh Access Points, Design and Deployment Guide, Release 7.3
218 OL-27593-01
Troubleshooting
Dynamic Frequency Selection
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