Fortress Technologies ecure Wireless Access Bridge - Manual (Page 37)

Fortress Bridge: Configuration
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3.3.2.3 Distance
The
Distance setting configures the maximum distance—from 1
to 35 miles, in increments of 1 mile—for which the radio must
adjust for the propagation delay of its transmissions.
Figure 3.1. Point-to-multipoint Bridge deployment with bridging radio Distance settings of 3 miles
In a point-to-multipoint deployment, the Distance setting on the
networked radios of all member Bridges should be the number
of miles separating the two Bridges with the greatest,
unbridged distance between them. In Figure 3.1, above, the
Distance setting would be 3 miles: the longest distance in the
network between two Bridges without another Bridge between
them.
Propagation delay is not a concern at distances of one mile
and under, at which you should leave the setting at
1 mile (the
default for both radios).
Additional radio configuration can be done through the Bridge
CLI (refer to Section 6.7).
3.3.2.4 Preamble
The short preamble is used by virtually all wireless devices
currently being produced. The default
Preamble setting of Short
is therefore optimal for most network implementations.
Some older 802.11b devices, however, still use the long
preamble, and if the network must support such devices, you
must configure the radio they will communicate with to use a
Preamble setting of Long .