Cisco BR1400 Deployment Manual page 20

Screenshot for configuring security
Figure 15.
6) After completing the above steps, view the association table of the root bridge to ensure all
non root bridges are associated.
7) Enable TKIP & MIC if you want enhanced encryption in your link.
4 Feasibility Study
This section will provide the reader with an understanding of what is required to determine if a
successful bridge link can be accomplished.
When determining the suitability of a successful bridge link, one needs to define how far the Bridge
link is expected to transit and at what radio data rate. Very close bridge links one Kilometer or less
are fairly easy to achieve assuming there are no obstructions referred to in radio jargon as a "Clear
Line Of Sight" or LOS.
If both buildings are very close, a link might be attained from a window by using one of the upper
floors of the building avoiding the need to install a bridge outdoors. This might be fine for a
temporary event or in a pinch to get a link up when time or weather conditions don't allow for a
more permanent solution. Keep in mind some windows can have metallic flakes inside the glass for
tinting or perhaps conductive gas for insulation to prevent fogging such materials may impede
(attenuate) the radio signal preventing such a link.
Tip: Links through glass are not a preferred method but could work for very short links.
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