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C-7
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-11350-01
Appendix C Error and Event Messages
802.11 Subsystem Messages
Error Message DOT11-3-RADIO_IF_LO: “Interface %s Radio cannot lock IF freq.”
Explanation
The radio intermediate frequency (IF) PLL is unable to lock the correct frequency on
the indicated interface.
Recommended Action Remove unit from network and service.
Error Message DOT11-6-FREQ_SCAN: “Interface %s Scanning frequencies for %d seconds.”
Explanation
Starting a scan for a least congested frequency on the interface indicated for a the time
period indicated.
Recommended Action None.
Error Message DOT11-2-NO_CHAN_AVAIL: “Interface %s, no channel available.”
Explanation
No frequency is available, likely because RADAR has been detected within the previous
30 minutes.
Recommended Action None.
Error Message DOT11-6-CHAN_NOT_AVAIL: “DFS configured frequency %d Mhz unavailable
for %d minute(s).
Explanation
Radar has been detected on the current channel. Dynamic Frequency Selection (DFS)
regulations require no transmission for 30 seconds on the channel.
Recommended Action None.
Error Message DOT11-6-DFS_SCAN_COMPLETE: “DFS scan complete on frequency %d MHz.”
Explanation
The device has completed its Dynamic Frequency Scan (DFS) frequency scanning
process on the displayed frequency.
Recommended Action None.
Error Message DOT11-6-DFS_SCAN_START: “DFS: Scanning frequency %d MHz for %d
seconds.”
Explanation
The device has begun its DFS scanning process.
Recommended Action None.
Error Message DOT11-6-DFS_TRIGGERED: “DFS: triggered on frequency %d MHz.”
Explanation
DFS has detected RADAR signals on the indicated frequency.
Recommended Action None. The channel will be placed on the non-occupancy list for 30 minutes and
a new channel will be selected.