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Configuring the RTS/CTS Protocol
Configuring the RTS/CTS Protocol
The RTS/CTS protocol forces the wireless device to transmit an RTS (Request To Send)
signal and wait for a CTS (Clear To Send) signal from the receiving wireless device before
transmitting a message. Any messages that are shorter in length than the length defined by
the RTS/CTS setting do not use the RTS/CTS protocol.
You should not use RTS/CTS unless you have a problem.
RTS Threshold on Access Points
The RoamAbout Access Point uses the RTS Threshold to define the length of messages that
must use RTS/CTS. When the message exceeds the threshold, the Access Point sends an
RTS to the client (or Access Point in a LAN-to-LAN configuration). The Access Point
waits until the device responds with a CTS message.
To reduce or eliminate collisions at the Access Point:
1. Set the RTS Threshold to 500.
Using the AP Manager, select the Access Point from the Managed List field and click
the Wireless Parameters button. In the Wireless Parameters window, click the
Advanced button.
Using the console port, choose Module-Specific Options from the RoamAbout
Access Point Installation Menu, then choose Set Wireless Configuration. If you do
not want to change the value, press <Enter> to go back to the previous menu.
2. At a RoamAbout client, use the RoamAbout Client Utility Link Test to determine if
the lowered RTS Threshold reduced collisions. You can also use the AP Manager, by
selecting Integrity from the menu bar, then selecting Link Test.
Medium Reservation on RoamAbout Clients
By default, Medium Reservation is disabled. You should only use Medium Reservation if
you have a hidden station problem. To modify the Medium Reservation setting on a client,
perform the following:
1. Open the RoamAbout Driver Properties window as described in the "Showing Current
Client Settings" section on page 5-21.
2. Click the Advanced tab. Press <F1> on your keyboard for detailed information.
3. In the Medium Reservation field, select Off or Hidden Stations.
4. Click OK to close the Properties window. Restart the computer when prompted.
5-24 Configuring the Wireless Network
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