ZyXEL Communications NWA5301-NJ User Manual page 82

Chapter 9 AP Profile
Table 37 Configuration > Object > AP Profile > Add/Edit Profile (continued)
LABEL
RTS/CTS
Threshold
Beacon Interval
DTIM
Output Power
Enable Signal
Threshold
Station Signal
Threshold
Disassociate
Station
Threshold
Allow Station
Connection after
Multiple Retries
Station Retry
Count
Rate Configuration
Multicast Settings
82
DESCRIPTION
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.
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. 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 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 255.
Set the output power of the AP in this field. If there is a high density of APs in an area,
decrease the output power of the NWA5160N to reduce interference with other APs.
Select one of the following Max, -3db (50%), -6db (25%), -9dB (12.5%) or Min.
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.
Select the check box to use the signal threshold to ensure wireless clients receive good
throughput. This allows only wireless clients with a strong signal to connect to the AP.
Clear the check box to not require wireless clients to have a minimum signal strength
to connect to the AP.
Set a minimum client signal strength. A wireless client is allowed to connect to the AP
only when its signal strength is stronger than the specified threshold.
-20 dBm is the strongest signal you can require and -76 is the weakest.
Set a minimum kick-off signal strength. When a wireless client's signal strength is
lower than the specified threshold, the NWA disconnects the wireless client from the AP.
-20 dBm is the strongest signal you can require and -90 is the weakest.
Select this option to allow a wireless client to try to associate with the AP again after it
is disconnected due to weak signal strength.
Set the maximum number of times a wireless client can attempt to re-connect to the
AP
This section controls the data rates permitted for clients.
For each rate, select a rate option from its list. The rates are:
• Basic Rate (Mbps) - Set the basic rate configuration in Mbps. Clients can always
connect to the NWA at this speed.
• Support Rate (Mbps) - Set the support rate configuration in Mbps. Clients can
connect to the NWA at this speed, when permitted to do so by the NWA.
• MCS Rate - Set the MCS rate configuration. EEE 802.11n supports many different
data rates which are called MCS rates. MCS stands for Modulation and Coding
Scheme. This is an 802.11n feature that increases the wireless network
performance in terms of throughput.
NWA5301-NJ User's Guide