Cisco Cisco Prime Network Control System Appliance Leaflet

 

 

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A.  No, it actually creates less channel utilization by allowing non-802.11n clients to operate at a higher data rate. 

This provides for up to a 60 percent improvement in channel capacity. The beacons are not beam-formed to 

prevent cell expansion. ClientLink also focuses the information toward the client that it is intended for. The use 

of ClientLink does not result in any changes to the output power of the access point. In general, it is not a good 

idea to increase output power due to issues with co-channel interference on neighboring cells. 

Most competitors’ beam-forming capabilities improve only the uplink (how well the access point can hear the 

clients). Cisco ClientLink improves the downlink as well by using a proprietary algorithm to improve the 

phase/amplitude of multiple Tx beams to the clients. We can also improve channel capacity by 27 percent to 

support more clients. 

Please take a look at the following white paper for details on Cisco ClientLink: 

. 

A.  You can support beam-forming for up to 15 clients per radio. Note that this does not restrict the total number of 

clients on the radio or access point but simply the number of 802.11a/g clients that you will simultaneously 

beam-

form to. Cisco ClientLink helps the worst a/g clients, not the “first” that connect. 

A.  Cisco CleanAir technology can correlate the same source of interferes seen across multiple access points, so 

you get a single alert (in contrast to other, noisier spectrum analysis features on competitors’ products). 

CleanAir monitors the severity and impact to Wi-Fi from each interference source. The algorithm is designed to 

show the performance-impacting effect of the interference source. For example, Bluetooth typically has ~20 

percent performance impact, whereas an analog video camera has ~95 percent. 

A.  Cisco is working with Apple at various levels, and you should see updates in later Apple iOS versions. Starting 

with Cisco Wireless LAN Controller Software Release 7.0, vendor client devices are published in the release 

notes to show which have been tested for compatibility by the Cisco AssureWave team. 

A.  Yes, VideoStream is supported on the Cisco Aironet 1040, 1140, 1250, 1260, 3500, 1130, and 1240 Series 

access points. For more information, see the release notes for the specific access points you’re interested in. 

A.  The RRM engine runs on the controller. You can configure it through the command-line interface (CLI), the 

Wireless LAN Controller (WLC) GUI interface, or WCS. 

A.  What RRM is doing is looking at the worst access points and a handful of others each tune-up cycle. If the 

WLC can fix the local RF neighborhood, it will make changes accordingly. It does not cascade changes 

through the whole network. Some customers run at longer intervals.