HP procurve 420 Management And Configuration Manual page 97

Data Beacon Rate: The rate at which stations in sleep mode must wake
■
up to receive broadcast/multicast transmissions.
Known also as the Delivery Traffic Indication Map (DTIM) interval, it
indicates how often the MAC layer forwards broadcast/multicast traffic,
which is necessary to wake up stations that are using Power Save mode.
The default value of 2 indicates that the access point will save all broad-
cast/multicast frames for the Basic Service Set (BSS) and forward them
after every second beacon. Using smaller DTIM intervals delivers broad-
cast/multicast frames in a more timely manner, causing stations in Power
Save mode to wake up more often and drain power faster. Using higher
DTIM values reduces the power used by stations in Power Save mode, but
delays the transmission of broadcast/multicast frames.
■ RTS Threshold: Sets the packet size threshold at which a Request to Send
(RTS) signal must be sent to a receiving station prior to the sending station
starting communications. The access point sends RTS frames to a
receiving station to negotiate the sending of a data frame. After receiving
an RTS frame, the station sends a CTS (clear to send) frame to notify the
sending station that it can start sending data.
If the RTS threshold is set to 0, the access point never sends RTS signals.
If set to 2347, the access point always sends RTS signals. If set to any other
value, and the packet size equals or exceeds the RTS threshold, the RTS/
CTS (Request to Send / Clear to Send) mechanism will be enabled.
To Change the Working Mode:
1. Select the Configuration tab.
2. Click the [ Port/Radio Settings]
Select the working mode you want to use, b & g mixed mode, g only mode,
3.
or b only mode.
4. Click the
[Radio Mode Change]
To Modify Radio Settings:
Select the Configuration tab.
1.
2. Click the [
Port/Radio Settings]
To enable the radio, check the Enable check box next to Radio.
3.
Select Enable for Auto Channel Select, or select a specific number for the
4.
Radio Channel. If you are deploying access points in the same area, be sure
to select channel numbers that are at least five apart (for example,
channels 1, 6, 11).
5. Modify other radio parameters, if appropriate.
button.
button.
button.
Access Point Configuration
Modifying Radio Settings
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