3Com 3CRWEASYA73, WL-575 manual Default Setting +g mode Command Mode, Preamble

CHAPTER 6: COMMAND LINE INTERFACE

Default Setting

b+g mode

Command Mode

Interface Configuration (Wireless - 802.11g)

Command Usage

•For Japan, only 13 channels are available when set to g or b+g modes. When set to b mode, 14 channels are available.

•Both the 802.11g and 802.11b standards operate within the 2.4 GHz band. If you are operating in g mode, any 802.11b devices in the service area will contribute to the radio frequency noise and affect network performance.

Example

Outdoor 11a Building to Building(if-wireless g)#radio-mode g

Outdoor 11a Building to Building(if-wireless g)#

preamble

This command sets the length of the signal preamble that is used at the start of a 802.11b/g data transmission.

Syntax

preamble [long short-or-long]

•long - Sets the preamble to long (192 microseconds).

•short-or-long- Sets the preamble to short if no 802.11b clients are detected (96 microseconds).

Default Setting

Short-or-Long

Command Mode

Interface Configuration (Wireless - 802.11b/g)

Command Usage

•Using a short preamble instead of a long preamble can increase data throughput on the access point, but requires that all clients can support a short preamble.

•Set the preamble to long to ensure the access point can support all 802.11b and 802.11g clients.

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