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.
| Parameter | Description | Value |
|---|---|---|
threshold |
Specifies the user CAC threshold based on terminal SNR. |
The value is an integer that ranges from 5 to 45, in dB. |
Usage Scenario
On WLANs where many users exist, such as WLANs in high density scenarios, users compete fiercely to occupy resources 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 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 the number of users 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, and is applicable to scenarios where the WLAN has good signal coverage and weak signals only at the edge of WLAN coverage areas.
CAC based on the number of users can be configured together with SNR-based CAC.
Prerequisites
The user CAC function based on terminal SNR has been enabled using the uac client-snr enable command.