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Fat AP and Cloud AP V200R010C00 Command Reference

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display channel switch-record

display channel switch-record

Function

The display channel switch-record command displays channel switching records on the device.

Format

display channel switch-record { all | calibrate | radio radio-id }

Parameters

Parameter Description Value
all

Displays all channel switching records.

-

calibrate

Displays channel switching records for radio calibration.

-

radio radio-id

Displays channel switching records.

The radio ID must exist.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

This command enables you to view channel switching records on a device.

Run the display channel switch-record calibrate command to query channel or power switching records caused by radio calibration to check the calibration results.

Example

# Display all channel switching records.

<Huawei> display channel switch-record all
Old/New: Old channel/New channel
RfID   : Radio ID
----------------------------------------------------------------------------------------------
RfID      Old/New  Switch reason  Switch time
----------------------------------------------------------------------------------------------
 0        1/6      calibration    11:03:30 2014/9/28
----------------------------------------------------------------------------------------------
Total : 1
Table 9-11  Description of the display channel switch-record all command output

Item

Description

RfID

Radio ID.

Old/New

Channels used before and after switching.

Switch reason

Reason for channel switching.
  • calibration: channel switching caused by radio calibration
  • configuration: channel switching caused by configuration
  • dfs: channel switching performed to avoid radar channels
  • dfs recover: channel switching caused by DFS channel switchback
  • mesh: channel switching caused by channel negotiation on a Mesh network

Switch time

Time when channel switch occurred.

# Display channel calibration records.

<Huawei> display channel switch-record calibrate
PCH : Pre channel 
CCH : Current channel
PBW : Pre bandwidth
CBW : Current bandwidth
PE  : Pre EIRP (dBm)
CE  : Current EIRP (dBm)
PR  : Pre RSSI (dBm)
CR  : Current RSSI (dBm)
RfID: Radio ID
----------------------------------------------------------------------------------------------------
RfID  PCH/CCH  PBW/CBW  PE/CE   PR/CR    Reason         Time                 Trigger ID(Radio)
----------------------------------------------------------------------------------------------------
0     11/6     80M/40M+ 27/127  -32/-40  Period recheck 19:30:00 2016/04/11  -
0     6/11     20M/20M  27/127  -40/-48  Bad env        19:21:53 2016/04/11  3(0)
----------------------------------------------------------------------------------------------------
Total : 2
Table 9-12  Description of the display channel switch-record calibrate command output
Item Description

RfID

Radio ID.

PCH/CCH

Channels before and after calibration.

NOTE:
PCH/CCH changes may be discontinuous for a radio.

PBW/CBW

Bandwidth before and after calibration.

PE/CE

Power before and after calibration.

NOTE:
PE/CE changes may be discontinuous for a radio.

PR/CR

Interference values before and after calibration.

Reason

Reason for triggering calibration.

  • Period recheck: periodic calibration
  • Bad env: environment deterioration
  • Non-Wi-Fi report: non-Wi-Fi report
    NOTE:

    Only cloud APs support this parameter.

  • Rogue AP report: rogue AP report
  • Noise interfere: noise interference
  • Global plan: trial operation
  • AP online: The AP radio is on, the radio is switched (between 2.4 GHz and 5 GHz bands), the radio working mode changes, or the AP goes online.
  • AP offline: The AP radio is off, the radio is switched (between 2.4 GHz and 5 GHz bands), the radio working mode changes, or the AP goes offline.
  • Unknown: unknown reason

Time

Time when calibration is triggered.

Trigger ID(Radio)

ID of the device (radio) that triggers radio calibration.

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Updated: 2019-11-21

Document ID: EDOC1100064352

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