DFS Meshproblem..

Nilsnos — Wed, 27 Mar 2024 06:49:49 GMT

Hello!

DFS Meshproblem here..

Controller: Catalyst 9800-L 17.3.6

I have 2 c9124AXD in a meshlink over ca 1000m, but the link is going down cyclic because i got radar detection on every channel!?

Not sure what to do in this case? the old link with c2702E was working without any issues..

Output from Root AP log:

Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.1491] wcp/dfs :: RadarDetection: Suppressed duplicate radar event, slotId=1, chanCnt=1 -104
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.1491] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.1492] wcp/dfs :: RadarDetection: Suppressed duplicate radar event, slotId=1, chanCnt=1 -104
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.2490] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.2490] wcp/dfs :: RadarDetection: Suppressed duplicate radar event, slotId=1, chanCnt=1 -104
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.2491] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.2491] wcp/dfs :: RadarDetection: Suppressed duplicate radar event, slotId=1, chanCnt=1 -104
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.3490] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.3491] wcp/dfs :: RadarDetection: Suppressed duplicate radar event, slotId=1, chanCnt=1 -104
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.3491] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.3492] wcp/dfs :: RadarDetection: Suppressed duplicate radar event, slotId=1, chanCnt=1 -104
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.3710] DOT11_DRV[1]: Channel set to 108
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.7957] systemd[1]: Starting Lighttpd Watcher...
Mar 27 06:26:32 kernel: [*03/27/2024 06:26:32.8411] systemd[1]: Started Lighttpd Watcher.
Mar 27 06:26:50 kernel: [*03/27/2024 06:26:50.5803] wlan: [0:D:dfs] WLAN_DEBUG_DFS_ALWAYS : dfs_process_radar_ind_on_home_chan: Radar found on channel=108, freq=5542 MHz. Primary beaconning chan:108, freq=5540 MHz.
Mar 27 06:26:59 kernel: [*03/27/2024 06:26:59.4836] wlan: [0:D:dfs] WLAN_DEBUG_DFS_ALWAYS : dfs_process_radar_ind_on_home_chan: Radar found on channel=108, freq=5540 MHz. Primary beaconning chan:108, freq=5540 MHz.
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6801] wlan: [0:D:dfs] WLAN_DEBUG_DFS_ALWAYS : dfs_process_radar_ind_on_home_chan: Radar found on channel=107, freq=5539 MHz. Primary beaconning chan:108, freq=5540 MHz.
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6916]
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6916] **** Got RADAR event from radio 1 ****
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6916] radio 1 detected RADAR on channel 108
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6916]
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6917] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6917] CRIT-MeshChannelMgr[1]: Radar Detected Ch( 108 😞 Wired Uplink! Send notification to Controller
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6917] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6918] wcp/dfs :: RadarDetection: sending packet out to capwapd, slotId=1, msgLen=386, chanCnt=1 -108
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6918] CRIT-MeshChannelMgr[1]: RAP DFS event: shutdown radio for 30mins
Mar 27 06:27:18 kernel: [*03/27/2024 06:27:18.6921] CRIT-MeshRadioBackhaul[1]: Radio DOWN
Mar 27 06:27:19 kernel: [*03/27/2024 06:27:19.7948] systemd[1]: Starting Lighttpd Watcher...
Mar 27 06:27:19 kernel: [*03/27/2024 06:27:19.8234] systemd[1]: Started Lighttpd Watcher.
Mar 27 06:31:59 sshd[11529]: syslogin_perform_logout: logout() returned an error
Mar 27 06:34:41 kernel: [*03/27/2024 06:34:41.6908] DOT11_DRV[1]: Channel set to 112
Mar 27 06:34:41 kernel: [*03/27/2024 06:34:41.6913] DOT11_CFG[1]: Starting radio 1
Mar 27 06:34:41 kernel: [*03/27/2024 06:34:41.7171] CRIT-MeshRadioBackhaul[1]: Radio UP
Mar 27 06:34:49 kernel: [*03/27/2024 06:34:49.0863] wlan: [0:D:dfs] WLAN_DEBUG_DFS_ALWAYS : dfs_process_radar_ind_on_home_chan: Radar found on channel=111, freq=5558 MHz. Primary beaconning chan:112, freq=5560 MHz.
Mar 27 06:34:58 kernel: [*03/27/2024 06:34:58.8643] wlan: [0:D:dfs] WLAN_DEBUG_DFS_ALWAYS : dfs_process_radar_ind_on_home_chan: Radar found on channel=111, freq=5558 MHz. Primary beaconning chan:112, freq=5560 MHz.
Mar 27 06:34:59 kernel: [*03/27/2024 06:34:59.1442] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:34:59 kernel: [*03/27/2024 06:34:59.1443] wcp/dfs :: RadarDetection: sending packet out to capwapd, slotId=1, msgLen=386, chanCnt=1 -112
Mar 27 06:34:59 kernel: [*03/27/2024 06:34:59.1541] DOT11_DRV[1]: Channel set to 116
Mar 27 06:35:02 kernel: [*03/27/2024 06:35:02.4057] systemd[1]: Starting Lighttpd Watcher...
Mar 27 06:35:02 kernel: [*03/27/2024 06:35:02.4492] systemd[1]: Started Lighttpd Watcher.
Mar 27 06:35:08 kernel: [*03/27/2024 06:35:08.3421] wlan: [0:D:dfs] WLAN_DEBUG_DFS_ALWAYS : dfs_process_radar_ind_on_home_chan: Radar found on channel=116, freq=5582 MHz. Primary beaconning chan:116, freq=5580 MHz.
Mar 27 06:35:17 kernel: [*03/27/2024 06:35:17.7446] wlan: [0:D:dfs] WLAN_DEBUG_DFS_ALWAYS : dfs_process_radar_ind_on_home_chan: Radar found on channel=117, freq=5586 MHz. Primary beaconning chan:116, freq=5580 MHz.
Mar 27 06:35:34 kernel: [*03/27/2024 06:35:34.2830] wlan: [6184:F:OBJMGR] wlan_objmgr_print_ref_ids: Pending references of object
Mar 27 06:35:34 kernel: [*03/27/2024 06:35:34.2831] wlan: [6184:F:OBJMGR] wlan_objmgr_print_ref_ids: WLAN_OBJMGR_ID -- 1
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.3382] wlan: [0:D:dfs] WLAN_DEBUG_DFS_ALWAYS : dfs_process_radar_ind_on_home_chan: Radar found on channel=116, freq=5581 MHz. Primary beaconning chan:116, freq=5580 MHz.
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5904]
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5904] **** Got RADAR event from radio 1 ****
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5905] radio 1 detected RADAR on channel 116
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5905]
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5906] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5906] CRIT-MeshChannelMgr[1]: Radar Detected Ch( 116 😞 Wired Uplink! Send notification to Controller
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5906] wcp/dfs :: RadarDetection: radar detected
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5907] wcp/dfs :: RadarDetection: sending packet out to capwapd, slotId=1, msgLen=386, chanCnt=1 -116
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5907] CRIT-MeshChannelMgr[1]: RAP DFS event: shutdown radio for 30mins
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.5910] CRIT-MeshRadioBackhaul[1]: Radio DOWN
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.6019]
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.6020] **** Got RADAR event from radio 1 ****
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.6020] radio 1 detected RADAR on channel 116
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.6020]
Mar 27 06:35:36 kernel: [*03/27/2024 06:35:36.6021] wcp/dfs :: RadarDetection: radar detected

Regards Matte Nilsson

Re: DFS Meshproblem..

Mark Elsen — Wed, 27 Mar 2024 07:48:54 GMT

- FYI : https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwc78435

Re: DFS Meshproblem..

Nilsnos — Wed, 27 Mar 2024 07:57:16 GMT

Thanks for the reply! I'll will check this out!

topic Re: DFS Meshproblem.. in Wireless

DFS Meshproblem..

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Re: DFS Meshproblem..