Chapter 5. Using BCAdmin™
802.11b Channel
Line Color
11
Purple
Table 5-1. BCAdmin Line Colors Legend
Link Speed (Mbps)
Line Style
11
Solid
5.5
Dashed
2
Dot-Dash
1
Dotted
Table 5-2. BCAdmin Line Styles Legend
Asymmetric Connections
For a variety of environmental reasons (antenna placement, radio reflections, interference, etc.),
asymmetric connections are sometimes formed between BreadCrumb devices. An asymmetric
connection is a connection between two BreadCrumb devices in which each BreadCrumb device is
transmitting at a different speed.
When an asymmetric connection is made, the BCAdmin operator will see two lines of the same color
connecting two BreadCrumb devices. The speeds will be represented in the line styles as specified in the
BCAdmin Line Styles Legend in the previous section. Transmission direction of each link is represented
by motion of the dots or dashes comprising the lines. (11Mbps links are solid lines, so their direction in
an asymmetric link is determined by elimination; its direction is simply the direction opposite the other
link of the same color). The following figure illustrates an asymmetric link:
Figure 5-4. Asymmetric Connection Example
Redundant Connections
When two BreadCrumb devices have two radio channels in common, they often form redundant links
between one another - that is, one connection on each channel. In these cases, lines of different colors
will connect the two BreadCrumb boxes as in the following figure:
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