WESM zl Management and Configuration Guide WT.01.28 and greater

3-22
Radio Port Configuration
Configuring Radio Settings
You can set an RTS threshold size, in bytes, which determines when an RTS/CTS
exchange must be made. If a station wants to send a data frame larger than the
threshold size, it must exchange RTS/CTS frames with the radio. Otherwise, it can
follow typical 802.11 procedures.
It is important to consider the needs of your wireless network when setting this
threshold. If your network has a high level of wireless traffic, hidden stations, or
interference, you should set a lower RTS. However, if your network has a relatively
low amount of wireless traffic and transmission contention, you could set a higher
RTS to allow a higher data throughput.
To configure the RTS threshold for adopted radios of a particular type, complete these
steps:
1. Select Network Setup > Radio Adoption Defaults and click the
Configuration tab.
2. Select the radio type and click the Edit button.
3. In the RTS Threshold field, enter the data frame size, in bytes, at which a station
must send an RTS frame.
The default threshold is 2,346 bytes, which means that the RTS/CTS exchange
will never be used (because 2,346 bytes is the maximum size for an 802.11
frame).
4. Click the OK button.
Setting the Beacon Interval. A beacon is an 802.11 management frame that is
broadcast by an RP radio to advertise its presence as a network point of access and
to keep the network synchronized. Beacon frames include information such as:
■ the service set identifier (SSID) for a WLAN
■ the RP radio’s basic SSID (BSSID) (media access control [MAC] address)
■ the broadcast destination address
■ a time stamp for synchronization
■ indicators about traffic and delivery, such as DTIMs
To let stations sleep longer and preserve battery life, you can increase the time
between beacons. Decreasing the beacon interval, on the other hand, helps to support
streaming multicast audio and video applications that are jitter-sensitive.
To adjust the default beacon interval for radios in your network, complete these steps:
1. Select Network Setup > Radio Adoption Defaults and click the
Configuration tab.
2. Select the radio type and click the Edit button.