Quality Of Service (Qos) Screen - ZyXEL Communications NBG-418N User Manual

Chapter 6 Wireless LAN
Table 31 Network > Wireless LAN > Advanced (continued)
LABEL
Extension Channel
Aggregation
Short GI
Enable Intra-BSS
Traffic
WLAN STA setting
overwrites WLAN
AP setting
Apply
Reset

6.7 Quality of Service (QoS) Screen

Use the QoS screen to enable Wifi MultiMedia Quality of Service (WMMQoS). This allows the NBG-
418N to automatically set priority levels to services, such as e-mail, VoIP, chat, and so on.
Click Network > Wireless LAN > QoS. The following screen appears.
Figure 56 Network > Wireless LAN > QoS
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DESCRIPTION
If you select 40 MHz or Auto 20/40MHz as your Channel Bandwidth in the Wireless
LAN > General screen, the extension channel enables the NBG-419N to get higher data
throughput. This also lowers radio interference and traffic.
Message Protocol Data Unit (MPDU) aggregation collects Ethernet frames along with their
802.11n headers and wraps them in a 802.11n MAC header. This method is useful for
increasing bandwidth throughput in environments that are prone to high error rates.
Mac Service Data Unit (MSDU) aggregation collects Ethernet frames without any of their
802.11n headers and wraps the header-less payload in a single 802.11n MAC header.
This method is useful for increasing bandwidth throughput. It is also more efficient than
A-MPDU except in environments that are prone to high error rates.
Select Enable to use Short GI (Guard Interval). The guard interval is the gap introduced
between data transmission from users in order to reduce interference. Reducing the GI
increases data transfer rates but also increases interference. Increasing the GI reduces
data transfer rates but also reduces interference.
A Basic Service Set (BSS) exists when all communications between wireless clients or
between a wireless client and a wired network client go through one access point (AP).
Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is
enabled, wireless client A and B can access the wired network and communicate with
each other. When Intra-BSS is disabled, wireless client A and B can still access the wired
network but cannot communicate with each other.
This field is available only when the NBG-418N is in universal repeater mode.
Select Enabled to have the NBG-418N copy the SSID and wireless security settings of
the associated AP, and use them for wireless connections between the NBG-418N and its
wireless clients.
Otherwise, select Disabled to configure different wireless and security settings for
wireless connections between the NBG-418N and its wireless clients.
Click Apply to save your changes to the NBG-418N.
Click Reset to reload the previous configuration for this screen.
NBG-418N User's Guide