Ruckus Wireless MM2211 Manuel D’Utilisation

8000013, July 2006

 MM2211 Wireless Broadband Gateway  User’s Guide

33

2. Click Update when you are done.

1. Click Configuration ->Wireless in the left-hand navigation pane. The window of 

 appears.

2. Select WEP in the Security drop-down menu.

3. Click the Edit Security Settings button.TheWEP Configuration window of 

 appears.

Data Rate

Select the desired data rate from the drop-down menu. The default is 
Best, which means the system will adjust the data rate automatically.

Transmit Power

Select the desired Adapter transmit power from the drop-down menu. We 
recommend that you use the default power, Full.

The options are: 

•

Full

•

Half (-3 dB)

•

Quarter (-6 dB)

•

Eighth (-9 dB)

•

Minimum

The default is Full.

Fragment Length

The fragment length. The range is between 256 and 2346 bytes. The 
default is 2346.

The MM2211 Gateway uses fragmentation to divide 802.11 frames into 
smaller fragments which are sent separately to the destination. Only 
unicast frames can be fragmented. The fragment length can be between 
256-2346 bytes. If the data that the MM2211 Gateway is transmitting is 
larger than the threshold, it will trigger the fragmentation function. If the 
packet size is equal to or less than the threshold, the gateway will not use 
fragmentation. In a good wireless environment, the larger the fragment, 
the more efficient the network operates. In a noisy environment, the 
fragment length should be adjusted to a smaller size to minimize 
retransmission and increase the reliability of the transmission.

RTS/CTS Threshold

The RTS-CTS threshold range. The range is between 256 and 2346. The 
default is 2346.

The RTS-CTS threshold is a value that determines at what frame length 
the request-to-send/clear-to-send (RTS-CTS) function is triggered. By 
default, this threshold is set at its highest value. A lower threshold value 
means that the RTS-CTS function is triggered for smaller frame lengths. 

A lower threshold may be necessary in environments with excessive 
signal noise or hidden nodes; but this may result in some performance 
degradation.