Cisco AIR-WLC2006-K9 - Wireless LAN Controller 2006 Guía de instalación descargar pdf (Pagina 39)

Wi-Fi Location-Based Services—Design and Deployment Considerations

OL-11612-01

Cisco Location-Based Services Architecture

the channels for which they are configured (which is why it is important to ensure that they are

configured for the primary channels of all access points in your environment). Once again, these

multicasts are quickly detected by access points operating on these channels in the vicinity of the asset

tags. There is no guarantee, however, that rogue access points or rogue clients are operating on the

channels to which your access points are assigned (primary channels). Because of this, rogue access

points and rogue clients operating on channels other than the primary channel of your access point are

detected during periodic off-channel scans. For an LWAPP access point acting in local mode, this

typically takes place for about 500 milliseconds out of every 180 seconds of operation, or about 50

milliseconds per non-primary channel per 180 second interval.

Rogue Clients

Rogue clients are clients associated to rogue access points. Rogue clients are displayed on the WCS

location floor maps using a black rectangle icon with a skull-and-crossbones, as shown in Figure 24. To

display rogue clients on the WCS location floor map, ensure that the “Show Rogue Clients” view option

is selected at the top of the floor map display and click on “reload” in the left-hand column.

Figure 24 WCS Rogue Client Location Map

Note that beginning with release 4.0 of WCS it is possible to filter the location information displayed by

WCS based on the age of the information. Thus in Figure 24, WCS displays location server information

that has aged up to 15 minutes. Alternatively this value could be set to 2 or 5 minutes for more recent

location information or ½, 1, 3, 6, 12 or 24 hours for less recent information.

Several options are available by clicking on the black rectangular skull-and-crossbones icon under “View

Filters”.

• The total number of rogue clients detected on this floor.

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 117 118

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Cisco AIR-WLC2006-K9 - Wireless LAN Controller 2006 Guía de instalación Pagina 39