ZyXEL Communications Network Card unified security gateway Manual de usuario descargar pdf (Pagina 251)

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Chapter 11 Interfaces

ZyWALL USG 20/20W User’s Guide

251

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(A-

MSDU)

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.

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.

Guard Interval 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.

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.

Add Click this to create a new WLAN interface.

Edit Double-click an entry or select it and click Edit to open a screen where

you can modify the entry’s settings.

Remove To remove an entry, select it and click Remove. The ZyWALL confirms

you want to remove it before doing so.

Activate To turn on an entry, select it and click Activate.

Inactivate To turn off an entry, select it and click Inactivate.

Object

References

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.

Status This icon is lit when the entry is active and dimmed when the entry is

inactive.

Name This field displays the name of the WLAN interface.

SSID This is the SSID (Service Set IDentity) of the WLAN interface.

Table 58 Configuration > Network > Interface > WLAN

LABEL DESCRIPTION

1 2 ... 246 247 248 249 250 251 252 253 254 255 256 ... 958 959

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