ZyXEL ZyWALL USG 20 User Guide - Page 251
Configuration > Network > Interface > WLAN - qos
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Chapter 11 Interfaces Table 58 Configuration > Network > Interface > WLAN LABEL DESCRIPTION QoS Select the Quality of Service priority for this traffic. • If you select WMM (Wi-Fi Multimedia) from the QoS list, the priority of a data packet depends on the packet's IEEE 802.1q or DSCP header. If a packet has no WMM value assigned to it, it is assigned the default priority. • If you select NONE, the ZyWALL applies no priority to traffic on this SSID. 802.11n Settings Aggregation MSDU(AMSDU) This field is available only when 802.11b+g+n or 802.11g+n is selected as the 802.11 Band. Check this to allow the grouping of several A-MSDUs (Aggregate MAC Service Data Units) into one large A-MPDU (Aggregate MAC Protocol Data Unit). This function allows faster data transfer rates. Auto Block ACK This field is available only when 802.11b+g+n or 802.11g+n is selected as the 802.11 Band. Guard Interval Check this to add the block ACK (BA) mechanism, in which multiple frames can be streamed out and acknowledged by a single frame. This function allows cutting the wait time between frames and increasing the data throughput. This field is available only when 802.11b+g+n or 802.11g+n is selected as the 802.11 Band. Select Short to increase data throughput. However, this may make data transfer more prone to errors. Select Long to prioritize data integrity. This may be because your wireless network is busy and congested. Add Edit Remove Activate Inactivate Object References # Status Name SSID 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. Click this to create a new WLAN interface. Double-click an entry or select it and click Edit to open a screen where you can modify the entry's settings. To remove an entry, select it and click Remove. The ZyWALL confirms you want to remove it before doing so. To turn on an entry, select it and click Activate. To turn off an entry, select it and click Inactivate. Select an entry and click Object References to open a screen that shows which settings use the entry. See Section 11.3.2 on page 232 for an example. This field is a sequential value, and it is not associated with any interface. This icon is lit when the entry is active and dimmed when the entry is inactive. This field displays the name of the WLAN interface. This is the SSID (Service Set IDentity) of the WLAN interface. ZyWALL USG 20/20W User's Guide 251