Symbol Technologies Spectrum24 AP-4131 User Manual

Page 87

Configuring the AP

AP-4131 Access Point Product Reference Guide

WLAP Forward
Delay

Specifies the time, in seconds, to prevent an AP from
forwarding data packets to and from an interface
during initialization. The WLAPs involved and the
wireless operation state, see section 3.8: ”Radio
Statistics” on page 176, affect the WLAP Forward
Delay time. This delay ensures that all WLAP nodes
are heard. The default is

seconds per wireless

operation state.

The WLAP Forward Delay of the Root AP overwrites
the WLAP Forward Delay of designated WLAPs.

WLAP MU Table
Aging Time

Allowable WLAP Mobile Unit aging timeout in
minutes. The time out limit is from 1 to 86400
minutes. Default is

240

minutes.

Short RF
Preamble

Determines whether the AP uses a short or long
preamble. The preamble is approximately 8 bytes of
the packet header generated by the AP and attached
to the packet prior to transmission.
The preamble length is transmission data rate
dependant. The short preamble is 50% shorter than
the long preamble.

This feature is only available on high rate DSSS
hardware. Non-high rate DSSS hardware (e.g. the
BAY Stack 660) can not enable the short preamble
function and can not see, receive or acknowledge
messages from short preamble enabled version 2.0
hardware. Disable this feature in a mixed hardware
network and use the long preamble. MUs and APs
are required to have the same Short RF Preamble
settings for interoperability. The default is

Disabled

Tx Power Control Allows the system administrator to reduce the

coverage area to facilitate greater AP density
resulting in greater wireless network capacity.
Available settings are:

Full

(default),

30mW

15mW

5mW

and

1mW

. These values are approximate.