Can Huawei 802.11n APs automatically switch between 2.4 GHz and 5 GHz

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Huawei 802.11n APs cannot automatically switch between 2.4 GHz and 5 GHz frequency bands. Switching is performed manually.

Other related questions:
Configure 2.4 GHz and 5 GHz radios
Configure 2.4 GHz and 5 GHz radios. In most cases, wlan-radio 0 or radio 0 indicates the 2.4 GHz radio, and wlan-radio 1 or radio 1 indicates the 5 GHz radio. When configuring 2.4 GHz and 5 GHz radios, bind the corresponding radio profiles and service sets. To switch or disable a radio, delete the radio profile and service set bound to the radio. Note: 1. For Fat APs: - Radio profiles: must be added for 2.4 GHz and 5 GHz radios in V200R003, and network types must be selected accordingly. However, this process is not required in V200R005 and later versions. - Service sets: must be created for 2.4 GHz and 5 GHz radios, and be invoked by wireless networks separately. 2. For ACs: - Radio profiles: must be added for 2.4 GHz and 5 GHz radios in V200R003, and network types must be selected accordingly. However, this process is not required in V200R005 and later versions. - Different radios can reuse a service set. 3. The AP2010DN supports only one radio. Change the radio frequency by running the ap id radio 0 command.

Whether the WLAN supports the concurrent dual-band
From V200R001C00 to V200R002C02, the device supports only the 2.4G frequency band but does not support the 5G frequency band. Starting from V200R003C00, the AR201VW-P and AR207VW support both 2.4 GHz and 5 GHz frequency bands but cannot work on the two frequency bands simultaneously. Starting from V200R005C30, the AR510 series can work on 2.4 GHz and 5 GHz frequency bands simultaneously. Starting from V200R006C10, the AR503GW-LM7 can work on 2.4 GHz and 5 GHz frequency bands simultaneously.

What is the minimum adjustment value of radio power for Huawei indoor APs (supporting 2.4 GHz and 5 GHz frequency bands) and outdoor 802.11n APs (supporting only the 2.4 GHz frequency band)
The radio power of Huawei APs can be adjusted automatically and manually. APs automatically adjust the radio power to the optimal value based on calculation. The minimum value for manual adjustment is 1 dBm.

Why cannot an 802.11a/b/g/n NIC receive 5 GHz signals when the AP works at channel 149
The 5 GHz frequency band is divided into the low frequency band (5150�?250 MHz), medium frequency band (5250�?350 MHz), and high frequency band (5725�?825 MHz). China uses 5.8 GHz with available channels 149, 153, 157, 161, and 165. China supports medium and low frequency bands, but the State Radio Regulatory Commission (SRRC) opens only the 5.8 GHz frequency band. The NICs produced by some vendors support 5.2 GHz but do not support 5.8 GHz. If this problem occurs, you can change the AP channel to work on the medium or low frequency band.

Wavelength spacing for 200G signals
For 10 Gbit/s, 40 Gbit/s, and 100 Gbit/s signals, the wavelength spacing is 50 GHz for an 80-wavelength system and 100 GHz for a 40-wavelength system. For 200 Gbit/s signals, the flexible grid technology can be used. When the technology is used, wavelength bandwidth is flexible, instead of being fixed at 50 GHz or 100 GHz. For example, if different modulation methods are used for 200 Gbit/s signals, different required bandwidth is required. (For example, it can be 75 GHz or 150 GHz). Flexible ROADM adjusts bandwidth based on signals and grooms the signals to specified directions according to the network configurations.

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