Dell TrueMobile 4350 User Manual page 228

The fragmentation threshold determines the size of data packets that will be fragmented before transmission. The available range is from
1 to 2346, with the default value being 2346 (Note: The fragmentation threshold is specified in bytes).
Data packets that are smaller than the specified fragmentation threshold value will not be fragmented. Data packets that are larger than
the fragmentation threshold will be fragmented into smaller packets and transmitted one at a time instead of all at once. The purpose of
fragmentation is to reduce the need for retransmission and improve overall network performance. Fragmentation is normally activated
when there is heavy traffic on the wireless network or the network is operating in a high interference environment. It is recommended to
use the default value or only minor reductions of this default value.
DTIM Interval
The DTIM (Delivery Traffic Indication Message) Interval setting determines how often a beacon contains a traffic indicator map (TIM).
The TIM is used to alert stations in sleep mode that date is available for reception. The DTIM Interval is always a multiple of the beacon
period and the available range is from 1 to 255, with the default value being 1.
CTS Protection mode
The CTS Protection mechanism allows interoperability of 802.11b & 802.11g devices in the same location. When the CTS Protection
mechanism is enabled, 802.11g devices will inform 802.11b devices (using either a CTS/RTS or CTS-Self broadcast message)
whenever a 802.11g data transmission is to occur. Enabling CTS Protection will reduce the throughput performance of your access point.
The options available for CTS Protection mode are none, always and auto (with the default being auto). In Auto mode, the Dell
Wireless 4350 Small Network Access Point will only enable CTS Protection if any 802.11b devices exist within it's wireless range. If the
mode is set to none, CTS Protection is disabled. If the mode is set to always, the CTS protection mode is always on.
The options available for CTS Protection Type are CTS/RTS and CTS-Self (with the default being CTS-Self). The CTS/RTS mechanism
results in a lower throughput performance than the CTS-Self mechanism.
Wireless Repeater
The Wireless Repeater setting can be used to increase the coverage of your wireless network. You need two or more Dell Wireless 4350
Small Network Access Point to set up wireless repeating. The access point that is connected to the network is known as the "root AP",
the access points that extend the coverage of this root AP are known as "repeater AP's".
To Configure your Access Point as a Wireless Repeater:
1. Click the option Enable this AP as a Wireless Repeater.
2. Type the wireless network name (SSID) of the root AP in the SSID of root AP field.
3. Set the "Network Encryption" mode as None, If the root AP does not provide wireless security.
4. et the "Network Encryption" mode as WEP, If the wireless security mode of the root AP is WEP. Then, set the proper key value,
S
key length, key format, and default key.
5. Click the Submit button.
The repeater AP must be located within the coverage of your root AP in order to associate with the root AP and extend it's coverage.
The repeater AP should not be connected into the wired network.
NOTE:Ensure all Dell Wireless 4350 Small Network Access Points are set to same wireless settings.
Wireless Repeater Link