ZyXEL Communications NWA-3550, User Manual

Page: 133 / 408

Chapter 8 Wireless Configuration
NWA-3500/NWA-3550 User’s Guide
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RTS/CTS
Threshold Use RTS/CTS to reduce data collisions on the wireless network if you
have wireless clients that are associated with the same AP but out of
range of one another. When enabled, a wireless client sends an RTS
(Request To Send) and then waits for a CTS (Clear To Send) before
it transmits. This stops wireless clients from transmitting packets at
the same time (and causing data collisions).
A wireless client sends an RTS for all packets larger than the number
(of bytes) that you enter here. Set the RTS/CTS equal to or higher
than the fragmentation threshold to turn RTS/CTS off.
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 .
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 from 30ms to
1000ms. A high value helps save current consumption of the access
point.
DTIM Delivery Traffic Indication Message (DTIM) is the time period after
which broadcast and multicast packets are transmitted to mobile
clients in the Active Power Management mode. A high DTIM value
can cause clients to lose connectivity with the network. This value
can be set from 1 to 100.
Output Power Set the output power of the NWA in this field. If there is a high
density of APs in an area, decrease the output power of the NWA to
reduce interference with other APs. Select from
100% (Full
Power) , 50% , 25% , 12.5% and Minimum . See the product
specifications for more information on your NWA’s output power.
Note: Reducing the output power also reduces the NWA’s
effective broadcast radius.
SSID Profile The SSID (Service Set IDentifier) identifies the Service Set with
which a wireless station is associated. Wireless stations associating
to the access point (AP) must have the same SSID. Select an
SSID
Profile from the drop-down list box.
Configure SSID profiles in the SSID screen (see Section 9.2 on page
147 for information on configuring SSID).
If you are configuring the NWA from a computer connected to the
wireless LAN and you change the NWA’s SSID or security settings,
you will lose your wireless connection when you press
Apply to
confirm. You must then change the wireless settings of your
computer to match the NWA’s new settings.
Table 25 Wireless: AP + Bridge
LABEL DESCRIPTIONS