User's Manual Part 2

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