Cabletron Systems RoamAbout Access Point Manual page 105

If all clients suffer from poor data throughput efficiency despite a good SNR value, the
traffic load could be caused by the following:
•
Many wireless clients are trying to communicate simultaneously.
•
Clients are deferring data transmissions to avoid frame collisions.
•
Clients are retransmitting frames repeatedly because initial transmissions failed, which
can be due to frame collisions.
If one or more clients are transmitting simultaneously with the Access Point in an
infrastructure network, you may need to lower the RTS Threshold on the Access Point as
described in the "RTS Threshold on Access Points" section on page 5-24.
If the concentration of users per Access Point is high, you may need to place the Access
Points closer together to distribute the load, or add Access Points to the wireless network.
To measure values over time, click the Test History tab. For example, you have a
performance problem during the mid-afternoon but not at other times. Use Test History to
measure wireless performance between 2:00 pm to 3:00 pm. You can save the test results
to a log file, as described in the "Logging Measurement Data" section on page 6-9.
Testing Data Throughput Efficiency
Maintaining the Wireless Network 6-5