A STA Cannot Detect Wi-Fi Signals
Symptom
A STA cannot detect Wi-Fi signals.
Possible Causes
- No VAP is not created, or the VAP does not work properly.
- SSID hiding is configured.
- The SSID profile is incorrectly configured.
- The radio parameters are incorrectly configured.
- The configuration is not delivered to the AP.
- The AP fails to properly send Beacon frames.
- The actual transmit power of the AP is low.
- Interference exists on the air interface.
- AP radios enter the silent period.
- The AP is configured to work in WDS leaf mode.
- The STA capability does not match the AP capability.
Troubleshooting Procedure
- Check whether the AP is in normal state and whether a VAP is created on the AP.
- Check the AP status on the AC.
[AC-wlan-view] display ap all Total AP information: nor : normal [4] Extra information: P : insufficient power supply ------------------------------------------------------------------------------------------------------------------------ ID MAC Name Group IP Type State STA Uptime ExtraInfo ------------------------------------------------------------------------------------------------------------------------ 4 9c50-ee45-6cc0 9c50-ee45-6cc0 default 192.168.150.171 AP5030DN nor 0 9H:16M:41S - ...... ------------------------------------------------------------------------------------------------------------------------ Total: 4
When the AP goes online normally, the value of the State field is nor. If the AP does not go online, for example, the AP is in fault state, check the cause of the AP login failure according to An AP Fails to Go Online on the AC.
- If the AP is in normal state, check the VAP status.
[AC-wlan-view] display vap ap-id 4 radio 0 WID : WLAN ID ------------------------------------------------------------------------------------ AP ID AP name RfID WID BSSID Status Auth type STA SSID ------------------------------------------------------------------------------------ 4 9c50-ee45-6cc0 0 1 9C50-EE45-6CC0 ON Open 0 HUAWEI-WLAN ------------------------------------------------------------------------------------ Total: 1
For a normally created VAP, the value of the BSSID field is not all 0s. For a working VAP, the value of the Status field is ON.
If the VAP fails to be created, run the display vap create-fail-record all command to check the cause of the VAP creation failure. The following table lists the common causes. For details about the cause and handling method, see display vap create-fail-record all (V200R010 is used as an example).
Reason for VAP Creation Failures
Suggestion
The VAPs using WEP encryption on an AP cannot use the same key ID.
Check the configuration of the VAP profile or security profile.
Invalid WEP key index.
Check whether the security profile is configured correctly.
Preshared key is not configured.
Configure a pre-shared key.
Only one management VAP profile can be bound.
Delete the management VAP that has been configured.
The bridge is enable. Please undo first.
Select another WLAN ID or delete the WDS configuration.
WLAN ID(16) is used. Please undo first.
Select another WLAN ID or delete the Mesh configuration.
Only one temporary management vap-profile can be bound to an AP.
Delete the offline management VAP that has been configured.
The current country code does not support 5 GHz frequency band.
Change the country code, or do not create a 5 GHz VAP.
The current country code does not support 2.4 GHz frequency band.
Change the country code, or do not create a 2.4 GHz VAP.
The AP type does not support the wlan id.
Delete unused VAPs.
This AP type does not support WDS function.
Replace the AP with one supporting WDS.
This AP type does not support Mesh function.
Replace the AP with one supporting Mesh.
The number of VAPs has reached the upper limit.
Delete excess VAPs.
The AP does not support 5 GHz frequency band.
Replace the AP, or do not create a 5 GHz VAP.
The AP does not support 2.4 GHz frequency band.
Replace the AP, or do not create a 2.4 GHz VAP.
The AP does not support 802.1X+WEP.
Replace the AP with one in compliance with 802.11ac Wave 2.
SFN roaming can be configured only on one VAP of each radio.
Create a VAP on another radio or delete the SFN roaming VAP on the current radio.
The AP does not support SFN.
Replace the AP with one supporting SFN roaming.
The 5G radio of the AP does not support SFN.
Replace the AP or change the 5 GHz radio configuration.
The number of VAPs has reached the card specific.
Reduce the number of VAPs on a card, or enable the AP to go online on another card of the switch and create VAPs.
The AP in this version does not support PPSK authentication.
Upgrade the AP to V200R010C00 or later.
The AP in this version does not support Navi-AC VAPs.
Upgrade the AP to V200R010C00 or later.
Unknown reason, error code is 0x%x.
Contact technical support personnel.
If the configuration is correct, that is, a VAP is bound to the radio, but the BSSID field in the command output is all 0s, the configuration fails to be delivered. In this case, contact R&D personnel to locate the fault.
If the BSSID is normal but the value of Status is OFF, the problem is caused by incorrect configurations. Perform the following operations to check the configurations.
- Check whether the radio is disabled.
If the radio is disabled, the corresponding VAP status is automatically displayed as OFF.
<AC> display ap config-info ap-id 4 ...... Radio 0 configurations: Radio enable : yes ...... Radio 1 configurations: Radio enable : no ......
If the value of Radio enable is no, the radio is disabled. Run the undo radio disable command in the AP radio view or AP group radio view to enable the specified radio.
- Check whether the VAP service is disabled.
<AC> display vap-profile name default -------------------------------------------------------------------------------- Profile ID : 0 Service mode : enable ......
If the value of Service mode is disable, the VAP service is disabled. Run the undo service-mode disable command in the VAP profile view to enable the VAP service.
- Check whether the scheduled VAP auto-off function is enabled and whether the time range is correct.
<AC> display vap-profile name default -------------------------------------------------------------------------------- ...... Auto off service switch : disable Auto off starttime : - Auto off endtime : - Auto off time-range : ......
If the scheduled VAP auto-off function is disabled, check whether this function is required by customer services. If the scheduled VAP auto-off function is not required by services, run the undo auto-off service command in the VAP profile view to disable the scheduled VAP auto-off function. If the scheduled VAP auto-off function is required by services, check whether the configured time range is proper. If the time range is improper, run the auto-off service start-time start-time end-time end-time command in the VAP profile view to reconfigure the time range.
- If a VAP has been created on the AC but the AP still cannot detect Wi-Fi signals, log in to the AP to check whether the VAP is successfully created on the AP.
Check whether a VAP is created on the AP based on the radio ID and VAP ID. The difference between the VAP ID created on the AC and the VAP ID on the AP is 1 (2.4 GHz).
In V200R019C00 and earlier versions:
[AP-diagnose] iwconfig radio 1 vap 0 IEEE802.11ac ESSID:"HUAWEI-WLAN" Mode:Master Frequency:5.825 GHz Access Point: 9C:50:EE:45:6C:D0 Bit Rate:312 Mb/s Tx-Power=25 dBm RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality=27/94 Signal level=-83 dBm Noise level=-95 dBm Rx invalid nwid:576316 Rx invalid crypt:0 Rx invalid frag:-- Tx excessive retries:-- Invalid misc:-- Missed beacon:--
In V200R019C10:
[AP-diagnose] display umac vap-config radio 1 vap 0 Radio type :802.11ax SSID :HUAWEI-WLAN Status :run Mode :host Channel :52 Bandwidth :20Mhz Access point :60d7-55b5-3c10 Security mode :restricted
If the SSID can be queried, the VAP is successfully created on the AP.
- Check whether the radio is disabled.
- Check the AP status on the AC.
- Check whether SSID hiding is configured.If SSID hiding is configured, STAs cannot search for signals. The following methods can be used to hide SSIDs:
- SSIDs are hidden in a VAP.
- SSIDs are hidden when the number of access users in a VAP reaches the configured maximum (supported since V200R007C20).
- SSIDs are hidden automatically when the number of access users on the radio reaches the threshold.
The procedure is as follows:
- On the AC, check whether SSID hiding and automatic SSID hiding when the maximum number of users is reached are configured in the SSID profile of the VAP.
- V200R010 and later versions:
<AC> display ssid-profile name default ------------------------------------------------------------------- Profile ID : 0 SSID : HUAWEI-WLAN SSID hide : disable Association timeout(min) : 5 Max STA number : 64 Action upon reaching the max STA number : SSID hide
- Versions earlier than V200R010:
<AC> display ssid-profile name default ------------------------------------------------------------------- Profile ID : 0 SSID : HUAWEI-WLAN SSID hide : disable Association timeout(min) : 5 Max STA number : 64 Reach max STA SSID hide : enable
You can run the undo ssid-hide enable and reach-max-sta hide-ssid disable commands in the SSID profile view to disable SSID hiding and automatic SSID hiding when the number of users reaches the maximum.
- V200R010 and later versions:
- Check whether automatic SSID hiding is configured in the RRM profile corresponding to a radio on the AC when the number of access users on the radio reaches the threshold.
<AC> display rrm-profile name default ------------------------------------------------------------------- ...... UAC check client's SNR : disable UAC client's SNR threshold(dB) : 20 UAC check client number : disable UAC client number access threshold : 64 UAC client number roam threshold : 64 UAC check channel utilization : disable UAC channel utilization access threshold(%) : 80 UAC channel utilization roam threshold(%) : 80 UAC hide SSID : enable ...... -------------------------------------------------------------------
You can run the following command in the RRM profile view to disable automatic SSID hiding when the number of access users on a radio reaches the configured threshold.- V200R010 and later versions: undo uac reach-access-threshold
- Versions earlier than V200R010: undo uac reach-access-threshold hide-ssid
- Log in to the AP and check VAP information on the AP. Check whether the value of hide_ssid is 1. If the value is 1, the SSID is hidden.
In V200R019C00 and earlier versions:
[AP-diagnose] display wifi vap-cfg radio 1 vap 1 ------------------------------------ abolt = 0 ant_ps_on = 0 authmode = 1 burst = 0 ccmpSwSelEn = 1 countermeas = 0 doth = 1 driver_caps = 1703339583 dropunencry = 0 hide_ssid = 1 inact_init = 30 isWdsEnabled = 0 mcast_rate = 54000 mcastcipher = 5 mode = 11ACVHT20 ps_timeout = 0 protmode = 2 pureg = 0 puren = 0 privacy = 0 shpreamble = 1 uapsdflag = 0 wdsdetect = 1 wmm = 1 wps_mode = 0 sfn = 0 vht_tx_nss = 4 vht_tx_mcs = 9 vht_rx_nss = 4 vht_rx_mcs = 9 ------------------------------------
In V200R019C10:
[AP-diagnose] display umac dot11 vap-obj radio 1 vap 0 VAP ID : 0 BSSID : 60d7-55b5-3c10 SSID : HUAWEI-WLAN SSID hide : 0 DTIM period : 1 STA num : 0 BSS Load switch : 0 UAPSD switch : 0 EDCA param count : 1 VHT info: SU Beamformer : 1 MU Beamformer : 0 TX MCS MAP : 0xFFAA RX MCS MAP : 0xFFAA HE info: UL OFDMA : 0 DL OFDMA : 0 Partial MU MIMO : 0 ER SU : 1 TX MCS MAP : 0xFFAA RX MCS MAP : 0xFFAA
- Check whether the SSID profile is configured.
SSIDs are used to distinguish different wireless signals. If an SSID is incorrectly configured, STAs cannot find the expected SSID name. As a result, the STAs consider that they cannot find signals. If no SSID is configured, the default SSID is HUAWEI-WLAN.
- Check the SSID of the VAP on the AC.
<AC> display vap-profile all FMode : Forward mode STA U/D : Rate limit client up/down VAP U/D : Rate limit VAP up/down BR2G/5G : Beacon 2.4G/5G rate ------------------------------------------------------------------------------------------------------------ Name FMode VLAN AuthType STA U/D(Kbps) VAP U/D(Kbps) BR2G/5G(Mbps) Reference SSID ------------------------------------------------------------------------------------------------------------ default direct VLAN 1 Open -/- -/- 1/6 0 HUAWEI-WLAN ------------------------------------------------------------------------------------------------------------ Total: 1
- Check the SSID profile referenced by the VAP profile on the AC.
<AC> display vap-profile name default -------------------------------------------------------------------------------- ...... SSID profile : guest ...... --------------------------------------------------------------------------------
- Configure an SSID in the SSID profile on the AC.
[AC-wlan-view] ssid-profile name guest [AC-wlan-ssid-prof-ssid1] ssid guest Warning: This action may cause service interruption. Continue?[Y/N]y
When an SSID profile is configured, the SSID profile name may be incorrectly considered as the SSID for sending signals. Actually, the SSID profile name is configured using the ssid command in the SSID profile view.
- Check the SSID of the VAP on the AC.
- Check whether the radio configuration is correct.
# Display the status and working mode of each radio on an AP.
[AC6005] display radio ap-id 59 CH/BW:Channel/Bandwidth CE:Current EIRP (dBm) ME:Max EIRP (dBm) CU:Channel utilization ST:Status WM:Working mode (normal/monitor/monitor dual-band-scan) -------------------------------------------------------------------------------------------------------- AP ID Name RfID Band Type ST CH/BW CE/ME STA CU WM ------------------------------------------------------------------------------------------------------- 59 14a0-f8a7-1d60 0 2.4G bgn on 6/20M 9/33 0 - normal 59 14a0-f8a7-1d60 1 5G an11ac on 161/20M 18/32 0 8% normal -------------------------------------------------------------------------------------------------------- Total:2
- If a radio is off, check whether the radio disable command configuration exists in the corresponding radio view. If so, enable the current radio.
[AC6005-wlan-radio-59/1] undo radio disable //Enable the current radio.
- If the work mode of a radio is not normal, the radio cannot provide WLAN services. In this case, run the work-mode command in the corresponding radio view to set the work mode of the radio to normal.
[AC6005-wlan-radio-59/1] work-mode normal //Set the work mode of the current radio to normal.
- If a radio is off, check whether the radio disable command configuration exists in the corresponding radio view. If so, enable the current radio.
- The preceding steps are performed to check whether the failure to query SSIDs is caused by incorrect configurations. If the problem persists after the preceding steps are performed, perform other operations. Check whether Beacon frames are sent normally.
# Check the number of discarded Beacon frames on an AP.
In V200R019C00 and earlier versions:
[AP-diagnose] display wifi radio-statistics radio 0 ...... [Beacon] Transmitted : 41663 Missed : 13427 ......
In V200R019C10:
[AP-diagnose] display lmac radio-tx-statistics radio 1 ...... Tx mgmt stats: Beacon transmitted : 941309 Beacon missed : 5 ......
If the value of Missed is large, Beacon frames are sent unstably. As a result, the SSID may be not queried sometimes.
If the value of Missed is much larger than the value of Transmitted, SSIDs cannot be found.
If many Beacon frames are lost, you need to locate causes. When the air interface is always busy, the AP cannot compete for the packet sending window. As a result, Beacon frames are discarded. In this case, you need to check whether the channel is busy in the current environment and whether there are many interferences. If there are wireless audio and video devices, Beacon frames will be lost.
# Check the channel utilization and noise floor of the AP radio on the AC.
<AC> display ap traffic statistics wireless ap-id 1 radio 0 ----------------------------------------------------------------------- ...... Wireless noise(dBm) :-104 Wireless port up rate(Kbps) :0 Wireless port down rate(Kbps) :0 ...... Wireless channel utilization(%) :84 ...... -----------------------------------------------------------------------
When the channel utilization or noise floor is too high, the number of discarded Beacon frames increases. In this case, you can use an external device or software to scan the air interface environment to identify the interference source. For details, see Signal Interference Occurs.
If there are a large number of discarded Beacon frames but the surrounding environment is clean and the interference of the AP is small, collect information and send it to technical support personnel.
If the values of Transmitted and Missed do not increase for more than 10 minutes, there is a high probability that the AP is faulty. In this case, contact technical support personnel.
- Check whether the transmit power of the AP is small.
In practice, if the transmit power of the AP is low and the signal strength is weak, STAs may fail to search for SSIDs.
# Check the transmit power of the AP.
<AC> display radio ap-id 1 CH/BW:Channel/Bandwidth CE:Current EIRP (dBm) ME:Max EIRP (dBm) CU:Channel utilization ST:Status WM:Working Mode (normal/monitor/monitor dual-band-scan/monitor proxy dual-band-scan) ------------------------------------------------------------------------------------ AP ID Name RfID Band Type ST CH/BW CE/ME STA CU WM ------------------------------------------------------------------------------------ 1 60de-4474-9640 0 2.4G bgn on 6/20M 11/24 0 55% normal 1 60de-4474-9640 1 5G an on 56/20M 25/25 0 3% normal ------------------------------------------------------------------------------------ Total:2
If the transmit power of the AP is low, adjust the transmit power. You are advised to manually adjust the transmit power of the AP to the maximum value to check whether the STAs can search for SSIDs.
# Manually adjust the transmit power of an AP radio.
- V200R006 and V200R007:
[AC-wlan-view] rrm-profile name default [AC-wlan-rrm-prof-default] calibrate auto-txpower-select disable [AC-wlan-rrm-prof-default] quit [AC-wlan-view] ap-id 1 [AC-wlan-ap-1] radio 0 [AC-wlan-radio-1/0] eirp 127
- V200R008 and later versions:
[AC-wlan-view] ap-id 1 [AC-wlan-ap-1] radio 0 [AC-wlan-radio-1/0] calibrate auto-txpower-select disable [AC-wlan-radio-1/0] eirp 127
The automatic power calibration function is enabled by default. The manually configured transmit power takes effect only after the function is disabled. After the verification is complete, set the transmit power to a proper value so that the STAs can search for SSIDs. This prevents interferences to other APs due to a high transmit power.
- V200R006 and V200R007:
- Check whether air interface interference exists on the AP, and check the channel utilization and noise floor of AP radios.
[AC6005] display ap traffic statistics wireless ap-id 59 radio 0 ------------------------------------------------------------------------------------ ...... Wireless noise(dBm) :-90 Wireless port up rate(Kbps) :0 Wireless port down rate(Kbps) :0 ...... Wireless channel utilization(%) :25 ...... ------------------------------------------------------------------------------------
High channel utilization and noise floor indicate severe interference is strong. In this case, scan the radio environment to identify interference sources.
- Check whether AP radios enter the silent period to avoid radar channels.
The 5 GHz frequency band used by wireless signals and the radar frequency band overlap. If an AP detects radar signals, it automatically switches to a non-radar channel for a period of time. The AP enters the silent state for 1 minute when detecting common radar signals and for 10 minutes when detecting meteorological radar signals. When the AP is in silent state, STAs cannot search for SSIDs. This situation is kept for a while. If STAs cannot search for signals for a long time, this cause can be excluded.
# Check channel switching records of an AP radio.
<AC> display channel switch-record ap-id 1 radio 1 Old/New: Old channel/New channel RfID : Radio ID --------------------------------------------------------------------------- AP name RfID Old/New Switch reason Switch time --------------------------------------------------------------------------- dcd2-fcf6-3f20 1 64/36 configuration 11:48:18 2017/08/17 dcd2-fcf6-3f20 1 165/64 dfs 11:34:29 2017/08/17 dcd2-fcf6-3f20 1 64/165 calibration 11:19:58 2017/08/17 dcd2-fcf6-3f20 1 -/64 configuration 17:22:13 2017/08/16 --------------------------------------------------------------------------- Total : 4, printed : 4
dfs indicates the channel is switched because radio signals are detected.
The channels 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, and 140 can be used as radar channels. If the channels supported by a country or region and radar channels overlap, avoid using radar channels. Channels 120 to 128 are radar channels, and the silence duration is 10 minutes.
- Check whether the AP is configured to work in WDS leaf mode. (for V200R019C00 and earlier versions)
If an AP is configured to work in WDS leaf mode and does not go online through the root AP on the WDS network, the radio of the AP cannot send signals.
# Run the ap-id command to enter the AP view or the ap-group command to enter the AP group view, and run the display this command in the AP view or AP group view to check the WDS profile configuration.
<AC> system-view [AC] wlan [AC-wlan-view] ap-id 1 [AC-wlan-ap-25] display this # radio 0 radio-2g-profile huawei vap-profile huawei wlan 1 channel 20mhz 1 radio 1 radio-5g-profile huawei vap-profile huawei wlan 1 wds-profile huawei-leaf wds-whitelist-profile huawei channel 20mhz 161 # return
# Check the WDS mode configured in a WDS profile.
<AC> display wds-profile name huawei-leaf -------------------------------------------------------------------------------- WDS name : HUAWEI-WLAN-WDS WDS work mode : leaf
# Enable the device to go online through the WDS network or run the undo wds-profile command in the AP radio view to delete the WDS profile.
- Check whether the STA capability matches the AP capability.
The STA can search for SSIDs sent by the AP and access the wireless network only when the STA capability matches the AP capability. There are two types of common problems:
- Frequency band mismatch: For example, services are configured on the 5 GHz frequency band of the AP, but the STA supports only the 2.4 GHz frequency band. As a result, the STA cannot search for SSIDs.
- Channel mismatch: By default, the country code of an AP is CN. If the AP is delivered to other countries or regions and the country code is not changed, the channel set is incorrect. For example, the country code of China supports high frequency bands higher than 149, but the target country or region does not support high frequency bands. As a result, terminals in the target country or region cannot search for high frequency band signals.
- Check the frequency band configured for the VAP.
<AC> display vap ap-id 1 WID : WLAN ID ----------------------------------------------------------------------------- AP ID AP name RfID WID BSSID Status Auth type STA SSID ----------------------------------------------------------------------------- 1 ap1 1 1 9C50-EE45-6CC0 ON Open 0 guest ----------------------------------------------------------------------------- Total: 1
The VAP is configured only on radio 1, that is, the 5 GHz frequency band. You can also configure the VAP on radio 0.
- Check the country code of the AP.
<AC> display ap run-info ap-id 1 -------------------------------------------------------------------------------- ...... Country code : CN ......
In addition, the network adapter of the STA may be faulty. In this case, you can update the network adapter driver or replace the STA to search for signals.
- Collect fault information.
- Collect operation results of the preceding steps and record the results in a file.
- Check AC version information.
[AC-diagnose] vrbd
- Check the AC configuration.
<AC> display current-configuration
- Check AP version information.
[Huawei-diagnose] vrbd
- Collect AP information by one click.
<Huawei> display diagnostic-information saved-file <Huawei> display diagnostic-information
If the problem persists for a long time, export logs on the AP or AC as follows.<fce3-3cb6-47e0> save logfile [fce3-3cb6-47e0-diagnose] save diag-logfile <fce3-3cb6-47e0> cd logfile/ <fce3-3cb6-47e0> dir Directory of flash:/logfile/ Idx Attr Size(Byte) Date Time(LMT) FileName 0 -ro- 1,113,850 Aug 31 2015 11:26:57 2015-08-31.12-29-00.dblg 1 -ro- 1,113,970 Aug 31 2015 19:45:02 2015-08-31.23-14-59.dblg 2 -ro- 1,113,920 May 06 2016 08:42:07 2016-05-06.08-47-07.dblg 3 -ro- 1,113,472 May 11 2016 16:19:54 2016-06-09.17-15-52.dblg 4 -ro- 1,114,104 Jun 14 2016 17:55:56 2016-06-14.18-29-52.dblg 5 -ro- 1,114,031 Jun 14 2016 22:22:06 2016-06-14.22-54-08.dblg 6 -ro- 1,113,835 Jun 17 2016 17:29:24 2016-06-17.18-08-54.dblg 7 -ro- 1,113,843 Jun 17 2016 20:34:50 2016-06-17.20-47-59.dblg 8 -ro- 1,113,743 Jun 22 2016 20:06:19 2016-06-22.20-50-06.dblg 9 -ro- 1,113,271 Jun 28 2016 16:58:37 2016-06-28.19-58-45.dblg 10 -ro- 1,113,494 Jun 29 2016 17:33:23 2016-06-29.18-32-36.dblg 11 -ro- 1,113,824 Jun 30 2016 01:22:38 2016-06-30.02-19-21.dblg 12 -ro- 1,113,773 Jun 30 2016 09:10:31 2016-06-30.10-09-39.dblg 13 -ro- 1,125,418 Jun 30 2016 09:26:03 2016-06-30.12-25-03.log 14 -ro- 1,113,801 Jul 11 2016 09:59:38 2016-07-11.10-13-26.dblg 15 -ro- 1,113,732 Jul 13 2016 15:41:02 2016-07-13.15-54-31.dblg 16 -ro- 1,129,531 Jul 13 2016 19:55:33 2016-07-15.10-37-46.dblg 17 -ro- 1,113,787 Nov 26 2018 21:54:45 2018-11-27.01-02-52.dblg 18 -ro- 1,113,604 Nov 27 2018 22:56:38 2018-11-28.00-20-24.dblg 19 -ro- 1,113,723 Nov 28 2018 07:37:57 2018-11-28.08-40-58.dblg 20 -ro- 1,113,744 Nov 28 2018 15:14:40 2018-11-28.16-10-55.dblg 21 -rw- 384,570 Jul 19 2016 10:07:11 log.dblg 22 -rw- 681,533 Jul 19 2016 10:06:57 log.log 11,144 KB total (1,512 KB free)You must log in to the AP to collect AP logs.
In V200R008C10 and later versions, you only need to run the save logfile command. After the logs are saved, use FTP or TFTP to export the log files with the extension name log and dblg in the corresponding time period.
Information collection is mainly performed in the diagnostic view. To enter the diagnostic view, run the following commands.
<Huawei> system-view [Huawei] diagnose
