ZyXEL VMG4381 User Guide - Page 117

Table 28, Label, Description

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Chapter 7 Wireless The following table describes the labels in this screen. Table 28 Network Setting > Wireless > Others LABEL RTS/CTS Threshold DESCRIPTION Data with its frame size larger than this value will perform the RTS (Request To Send)/CTS (Clear To Send) handshake. Fragmentation Threshold Auto Channel Timer Output Power Beacon Interval Enter a value between 0 and 2347. This is the maximum data fragment size that can be sent. Enter a value between 256 and 2346. If you set the channel to Auto in the Network Setting > Wireless > General screen, specify the interval in minutes for how often the Device scans for the best channel. Enter 0 to disable the periodical scan. Set the output power of the Device. If there is a high density of APs in an area, decrease the output power to reduce interference with other APs. Select one of the following: 20%, 40%, 60%, 80% or 100%. When a wirelessly networked device sends a beacon, it includes with it a beacon interval. This specifies the time period before the device sends the beacon again. DTIM Interval 802.11 Mode The interval tells receiving devices on the network how long they can wait in low power mode before waking up to handle the beacon. This value can be set from20ms to 1000ms. A high value helps save current consumption of the access point. Delivery Traffic Indication Message (DTIM) is the time period after which broadcast and multicast packets are transmitted to mobile clients in the Power Saving mode. A high DTIM value can cause clients to lose connectivity with the network. This value can be set from 1 to 100. Select 802.11b Only to allow only IEEE 802.11b compliant WLAN devices to associate with the Device. Select 802.11g Only to allow only IEEE 802.11g compliant WLAN devices to associate with the Device. Select 802.11n Only to allow only IEEE 802.11n compliant WLAN devices to associate with the Device. Select 802.11b/g Mixed to allow either IEEE 802.11b or IEEE 802.11g compliant WLAN devices to associate with the Device. The transmission rate of your Device might be reduced. 802.11 Protection Select 802.11b/g/n Mixed to allow IEEE 802.11b, IEEE 802.11g or IEEE802.11n compliant WLAN devices to associate with the Device. The transmission rate of your Device might be reduced. Enabling this feature can help prevent collisions in mixed-mode networks (networks with both IEEE 802.11b and IEEE 802.11g traffic). Select Auto to have the wireless devices transmit data after a RTS/CTS handshake. This helps improve IEEE 802.11g performance. Select Off to disable 802.11 protection. The transmission rate of your Device might be reduced in a mixed-mode network. Preamble This field displays Off and is not configurable when you set 802.11 Mode to 802.11b Only. Select a preamble type from the drop-down list box. Choices are Long or Short. See Section 7.10.7 on page 124 for more information. Apply Cancel This field is configurable only when you set 802.11 Mode to 802.11b. Click Apply to save your changes. Click Cancel to restore your previously saved settings. VMG4381-B10A User's Guide 117

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Chapter 7 Wireless
VMG4381-B10A User’s Guide
117
The following table describes the labels in this screen.
Table 28
Network Setting > Wireless > Others
LABEL
DESCRIPTION
RTS/CTS
Threshold
Data with its frame size larger than this value will perform the RTS (Request To Send)/CTS
(Clear To Send) handshake.
Enter a value between 0 and 2347.
Fragmentation
Threshold
This is the maximum data fragment size that can be sent. Enter a value between 256 and
2346.
Auto Channel
Timer
If you set the channel to
Auto
in the
Network Setting > Wireless > General
screen,
specify the interval in minutes for how often the Device scans for the best channel. Enter 0
to disable the periodical scan.
Output Power
Set the output power of the Device. If there is a high density of APs in an area, decrease
the output power to reduce interference with other APs. Select one of the following:
20%
,
40%
,
60%
,
80%
or
100%
.
Beacon Interval
When a wirelessly networked device sends a beacon, it includes with it a beacon interval.
This specifies the time period before the device sends the beacon again.
The interval tells receiving devices on the network how long they can wait in low power
mode before waking up to handle the beacon. This value can be set from20ms to 1000ms.
A high value helps save current consumption of the access point.
DTIM Interval
Delivery Traffic Indication Message (DTIM) is the time period after which broadcast and
multicast packets are transmitted to mobile clients in the Power Saving mode. A high DTIM
value can cause clients to lose connectivity with the network. This value can be set from 1
to 100.
802.11 Mode
Select
802.11b Only
to allow only IEEE 802.11b compliant WLAN devices to associate with
the Device.
Select
802.11g Only
to allow only IEEE 802.11g compliant WLAN devices to associate with
the Device.
Select
802.11n
Only
to allow only IEEE 802.11n compliant WLAN devices to associate with
the Device.
Select
802.11b/g Mixed
to allow either IEEE 802.11b or IEEE 802.11g compliant WLAN
devices to associate with the Device. The transmission rate of your Device might be
reduced.
Select
802.11b/g/n Mixed
to allow IEEE 802.11b, IEEE 802.11g or IEEE802.11n
compliant WLAN devices to associate with the Device. The transmission rate of your Device
might be reduced.
802.11
Protection
Enabling this feature can help prevent collisions in mixed-mode networks (networks with
both IEEE 802.11b and IEEE 802.11g traffic).
Select
Auto
to have the wireless devices transmit data after a RTS/CTS handshake. This
helps improve IEEE 802.11g performance.
Select
Off
to disable 802.11 protection. The transmission rate of your Device might be
reduced in a mixed-mode network.
This field displays
Off
and is not configurable when you set
802.11 Mode
to
802.11b
Only
.
Preamble
Select a preamble type from the drop-down list box. Choices are
Long
or
Short
. See
Section 7.10.7 on page 124
for more information.
This field is configurable only when you set 802.11 Mode to
802.11b
.
Apply
Click
Apply
to save your changes.
Cancel
Click
Cancel
to restore your previously saved settings.