ZyXEL Communications NWA3550 - Manual (Page 124)

Chapter 9 MBSSID and SSID
NWA3550 User’s Guide
124
802.11 Mode Select 802.11b Only to allow only IEEE 802.11b compliant WLAN devices to
associate with the ZyXEL Device.
Select 802.11g Only to allow only IEEE 802.11g compliant WLAN devices to
associate with the ZyXEL Device.
Select 802.11b+g to allow both IEEE802.11b and IEEE802.11g compliant
WLAN devices to associate with the ZyXEL Device. The transmission rate of
your ZyXEL Device might be reduced.
Select 802.11a to allow only IEEE 802.11a compliant WLAN devices to
associate with the ZyXEL Device.
Super Mode Select this to improve data throughput on the WLAN by enabling fast frame
and packet bursting.
Choose Channel ID Set the operating frequency/channel depending on your particular region. To
manually set the ZyXEL Device to use a channel, select a channel from the
drop-down list box.
Click MAINTENANCE and then the Channel Usage tab to open the Channel
Usage screen to make sure the channel is not already used by another AP or
independent peer-to-peer wireless network. To have the ZyXEL Device
automatically select a channel, click Scan instead.
Scan Click this button to have the ZyXEL Device automatically select the wireless
channel with the lowest interference.
Disable channel
switching for DFS
This field is available when you select 802.11a in the 802.11 Mode field.
DFS (dynamic frequency selection) allows an AP to detect other devices in
the same channel. If there is another device using the same channel, the AP
changes to a different channel, so that it can avoid interference with radar
systems or other wireless networks.
Select this option to disable DFS on the ZyXEL Device when 802.11 Mode is
set to 802.11a.
RTS/CTS Threshold The threshold (number of bytes) for enabling RTS/CTS handshake. Data with
a frame size larger than this value will perform the RTS/CTS handshake.
Setting this attribute to be larger than the maximum MSDU (MAC service data
unit) size turns off the RTS/CTS handshake. Setting this attribute to its lowest
value (256) turns on the RTS/CTS handshake. Enter a value between 256
and 2346.
This field is not available when Super Mode is selected.
Fragmentation
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.
This field is not available when Super Mode is selected.
Output Power Set the output power of the ZyXEL Device in this field. 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 100%, 50%, 25%, 12.5% or
Minimum. See the product specifications for more information on your ZyXEL
Device’s output power.
This field is not available when you select 802.11a in the 802.11 Mode field.
Rates Configuration This section controls the data rates permitted for clients.
For each Rate, select an option from the Configuration list. The options are:
•
Basic (1~11 Mbps only): Clients can always connect to the access point
at this speed.
• Optional: Clients can connect to the access point at this speed, when
permitted to do so by the AP.
• Disabled: Clients cannot connect to the access point at this speed.
Table 34 Wireless: Multiple BSS
LABEL DESCRIPTION