Dell PowerConnect W-Airwave, Руководство пользователя

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88 | Configuring and Using Device Groups in AirWave Dell PowerConnect W-AirWave 7.4 | User Guide
Figure 44
Groups > Radio Page Illustration
3. Locate the Radio Settings area and adjust these settings as required. Table 62 describes the settings and
default values.
Table 62
Groups > Radio > Radio Settings Fields and Default Values
Setting Default Description
Allow Automatic Channel
Selection (2.4, 5, and 4.9
GHz Public Safety) No If enabled, whenever the AP is rebooted it uses its radio to scan the airspace and
select its optimal RF channel based on observed signal strength from other radios.
NOTE: If you enable this feature, AirWave automatically reboots the APs in the group
when the change is implemented.
802.11b Data Rates
(Mbps) Required:

1.0

2.0
Optional:

5.5

11.0
Displays pull-down menus for various data rates for transmitting data.
NOTE: This setting does not apply to Cisco LWAPP devices.
The three values in each of the pull-down menus are as follows:

Required—The AP transmits only unicast packets at the specified data rate;
multicast packets are sent at a higher data rate set to optional. (Corresponds to a
setting of yes on Cisco devices.)

Optional—The AP transmits both unicast and multicast at the specified data
rate. (Corresponds to a setting of basic on Cisco devices.)

Not Used—The AP does not transmit data at the specified data rate.
(Corresponds to a setting of no on Cisco devices.)
Frag Threshold Enabled No If enabled, this setting enables packets to be sent as several pieces instead of as one
block. In most cases, leave this option disabled.
Threshold Value 2337 If Fragmentation Threshold is enabled, this specifies the size (in bytes) at which
packets are fragmented. A lower Fragmentation Threshold
setting might be required
if there is a great deal of radio interference.
RTS/CTS Threshold
Enabled No If enabled, this setting configures the AP to issue a RTS (Request to Send) before
sending a packet. In most cases, leave this option disabled.
RTS/CTS Threshold Value 2338 If RTS/CTS is enabled, this specifies the size of the packet (in bytes) at which the AP
sends the RTS before sending the packet.
RTS/CTS Maximum
Retries 32 If RTS/CTS is enabled, this specifies the maximum number of times the AP issues an
RTS before stopping the attempt to send the packet through the radio.
Acceptable values range from 1
to 128.