How do WLAN devices restrict access from low-rate STAs

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For details about how to configure an AC to restrict access from low-rate STAs, see:

V200R005:

Restricting Access from Weak-Signal or Low-Rate STAs

V200R006:

Configuring Smart Roaming

Other related questions:
How do WLAN devices restrict access from weak-signal STAs
For details about how to configure an AC to restrict access from weak-signal STAs, see: V200R005: Restricting Access from Weak-Signal or Low-Rate STAs V200R006: Configuring Smart Roaming

How do WLAN devices force low-rate STAs to log out
For details about how to configure an AC to force low-rate STAs to log out, see: V200R005: Restricting Access from Weak-Signal or Low-Rate STAs V200R006: Configuring Smart Roaming

How do I view STA Internet access behavior on a WLAN device
APs serve as Layer 2 access nodes and cannot record information about STA Internet access.

Why is the association rate displayed on the STA low
The possible causes for the low association rate displayed on the STA include: - If the STA is far away from the AP, signals are weak, and the negotiated association rate of the STA is low. - If the 802.11n APs use WEP or TKIP encryption, the association rate of STAs may only be 54 Mbit/s (that is the rate of 802.11b/g). Because WEP and TKIP are not defined in the 802.11n protocol, the STA associates with the AP in 802.11g mode if TKIP encryption is used. - If the network adapter supporting only the 802.11b/g mode is associated with the 802.11n AP, the maximum associated rate is 54 Mbit/s. Alternatively, the radio type configured on the 802.11n AP is in 802.11b/g mode, so the AP supports only the radios in 802.11b/g mode. Try the following methods to resolve the problem: 1. Place the STA closer to the AP. 2. Change the encryption mode to CCMP in the security profile.

Does an online 802.11b/g STA affect the rate of another online 802.11n STA
Yes. 802.11b/g STAs have a low rate and occupy the air interface for a longer time when forwarding the same traffic as 802.11n STAs. This lowers the rate of an online 802.11n STA.

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