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

This field is available only when 802.11b+g+n or 802.11g+n is

MSDU(A-

selected as the 802.11 Band.

MSDU)

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

This field is available only when 802.11b+g+n or 802.11g+n is

ACK

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

Select an entry and click Object References to open a screen that

References

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.

 

 

 

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ZyWALL USG 20/20W User’s Guide