ZyXEL nbg-4615 Betriebsanweisung
Chapter 14 Wireless LAN
NBG4615 User’s Guide
141
The following table describes the labels in this screen.
14.6 Quality of Service (QoS) Screen
The QoS screen allows you to automatically give a service (such as VoIP and
video) a priority level.
video) a priority level.
Table 47 Network > Wireless LAN > Advanced
LABEL
DESCRIPTION
RTS/CTS
Threshold
Threshold
Data with its frame size larger than this value will perform the RTS
(Request To Send)/CTS (Clear To Send) handshake.
(Request To Send)/CTS (Clear To Send) handshake.
Enter a value between 256 and 2432.
Fragmentation
Threshold
Threshold
The threshold (number of bytes) for the fragmentation boundary for
directed messages. It is the maximum data fragment size that can be
sent. Enter an even number between 256 and 2346.
directed messages. It is the maximum data fragment size that can be
sent. Enter an even number between 256 and 2346.
Output Power
Set the output power of the NBG4615 in this field. If there is a high
density of APs in an area, decrease the output power of the NBG4615 to
reduce interference with other APs. Select one of the following 100%,
90%, 75%, 50%, 25% or 10%. See the product specifications for
more information on your NBG4615’s output power.
density of APs in an area, decrease the output power of the NBG4615 to
reduce interference with other APs. Select one of the following 100%,
90%, 75%, 50%, 25% or 10%. See the product specifications for
more information on your NBG4615’s output power.
HT (High Throughput) Physical Mode
- Use the fields below to configure the 802.11
wireless environment of your NBG4615.
Operating
Mode
Operating
Mode
Choose this according to the wireless mode(s) used in your network.
Mixed - Select this if the wireless clients in your network use different
wireless modes (for example, IEEE 802.11b/g and IEEE 802.1n modes)
wireless modes (for example, IEEE 802.11b/g and IEEE 802.1n modes)
Green - Select this if the wireless clients in your network uses only one
type of wireless mode (for example, IEEEE 802.11 n only)
type of wireless mode (for example, IEEEE 802.11 n only)
Channel
Bandwidth
Bandwidth
Select the channel bandwidth you want to use for your wireless network.
It is recommended that you select 20/40 (20/40 MHz).
Select 20 MHz if you want to lessen radio interference with other
wireless devices in your neighborhood.
wireless devices in your neighborhood.
Guard Interval Select Auto 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 or the NBG4615 is located in an
environment prone to radio interference.
wireless network is busy and congested or the NBG4615 is located in an
environment prone to radio interference.
Extension
Channel
Channel
This is set to Auto by default.
If you select 20/40 as your Channel Bandwidth, the extension
channel enables the NBG4615 to get higher data throughput. This also
lowers radio interference and traffic.
channel enables the NBG4615 to get higher data throughput. This also
lowers radio interference and traffic.
Apply
Click Apply to save your changes back to the NBG4615.
Cancel
Click Cancel to reload the previous configuration for this screen.