No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


Fat AP and Cloud AP V200R010C00 Command Reference

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
uac client-snr threshold

uac client-snr threshold


The uac client-snr threshold command configures the user CAC threshold based on terminal SNR.

The undo uac client-snr threshold command restores the default user CAC threshold based on terminal SNR.

By default, the user CAC threshold based on terminal SNR is 15 dB.


uac client-snr threshold threshold

undo uac client-snr threshold


Parameter Description Value

Specifies the user CAC threshold based on terminal SNR.

The value is an integer that ranges from 5 to 25, in dB.


RRM profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

On WLANs where many users exist, such as WLANs in high density scenarios, users compete fiercely to occupy the channels as the number of online users increases. As a result, network quality deteriorates. To ensure network access experience of online users, configure the user CAC function. The user CAC function allows an AP to control user access based on the thresholds specified according to the radio channel usage, number of online users, or terminal SNR, which enables provisioning of high-quality network access services.

The configured user CAC threshold based on terminal SNR takes effect for new STAs. When a new STA (or a roaming STA) attempts to connect to an AP, the AP checks the STA's SNR. If the SNR is smaller than the threshold, the AP denies the STA's access.

  • User CAC based on channel usage uses a complex algorithm but is accurately implemented to ensure service quality. This mode is recommended when service types and traffic volumes differ greatly among users.

  • User CAC based on the number of users is less accurate but uses a simple algorithm. This mode is recommended when most users have the same type of services and similar service traffic volumes.

  • SNR-based user CAC controls access from weak-signal users, applicable to scenarios where the WLAN has good signal coverage and weak signals only at the edge of WLAN coverage areas.

User CAC based on channel usage and user CAC based on the number of access users cannot be configured simultaneously, but either of them can be configured together with user CAC based on terminal SNR.


The user CAC function based on terminal SNR has been enabled using the uac client-snr enable command.


# Set the user CAC threshold based on terminal SNR to 16 dB.

<Huawei> system-view
[Huawei] wlan
[Huawei-wlan-view] rrm-profile name huawei
[Huawei-wlan-rrm-prof-huawei] uac client-snr enable
[Huawei-wlan-rrm-prof-huawei] uac client-snr threshold 16
Related Topics
Updated: 2019-11-21

Document ID: EDOC1100064352

Views: 196069

Downloads: 118

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Previous Next