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Figure 5: Cisco WCS
WCS provides a client troubleshooting tool that walks the user through a wizard-like interface that can assist in
problem diagnosis. WCS also provides the ability to view how a client has moved around a floor plan over time
and can show per-client historical-statistical-trend analysis.
Cisco purchased a spectrum analysis company, Cognio, in September 2007. Cisco embedded the Cognio
technology into its APs in order to provide spectrum analysis and classification (the solution is marketed as
CleanAir). CleanAir provides visibility into the physical layer, can provide insight into interference issues, and
automatically performs workaround adjustments.
Enterasys Networks
The Enterasys demonstration team used the SpectraGuard Planner from AirTight Networks for the network-
design use case. The SpectraGuard Planner auto-placed APs on the floor plan and also suggested which channels
each AP should use. However, the Enterasys APs can override these suggestions through the use of the auto-
channel and auto-power features embedded in every AP. The SpectraGuard Planner can create voice/data designs
that consider 3D signal propagation. The Enterasys Wireless Management Suite (WMS) can import files from the
SpectraGuard Planner (and also from the Ekahau Site Survey tool).
The process of reconciling the predictive design with the as-built network can occur in two ways. First, WMS
allows administrators to manually move registered APs into the correct location on the floor plan. Alternatively,
administrators can input the AP MAC addresses into the SpectraGuard Planner before they import the design to
WMS. In this case, the reconciliation process is done automatically. In both cases, the WMS solution provides an
automatic calibration process to ensure exact placement of APs on the design map.
WMS can provide navigation either by showing a list of devices or by a location-based navigation explorer on the
left-hand side of the screen (see Figure 6). WMS can also provide a more intuitive location view that shows a
floor plan with APs, sensors, and clients. The Enterasys wireless system can perform load balancing and has an
ATF algorithm, but it does not currently support band steering.
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