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Fat AP and Cloud AP V200R008C00 CLI-based Configuration Guide

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User CAC

User CAC

On WLANs where many users exist, such as in high density scenarios, as the number of online users increases users compete fiercely to occupy channels. As a result, network quality deteriorates. To ensure online users' network access, configure the user Calling Access Control (CAC) function. User CAC allows an AP to control user access based on the terminal SNR, which enables high-quality network access services.

However, too many users roaming to the AP deteriorated online users' experience of the AP. Therefore, a CAC threshold for roaming users is required. When a user roams to an AP, the AP accepts them provided the number of users on the AP does not reach the CAC threshold for roaming users.

SNR-based UAC 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 at the edge of WLAN coverage areas.

When receiving a new access request, the AP checks whether the terminal SNR reaches the threshold specified for new users. If so, the user is denied access. If not, the AP allows the user to go online.

Updated: 2019-01-11

Document ID: EDOC1000176006

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