Cisco Aironet 1131AG and measure access points to the power of the wireless signal?

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We have about forty points of access Cisco Aironet 1131AG spread over four floors and they all have a static IP (BVI1) on the same SSID, customers will be on its own virtual local area network (dhcp on 3750 switch) and they use several channels (1,6,11).  Cisco Wireless Control System is pending. This wireless network should support roaming for customers (there will be Wi - Fi tags of multiple AeroScout and wireless laptops). To measure the strength of the wireless signal and wireless coverage on each floor. My questions are:

  1. How to measure the strength of the wireless signal: we must meet at least three APs available with signal excellent (I guess for the WCS needs that will determine the position of the client in the building)? We thought to use NetStumbler and a few laptops with wifi and measure as many points as we can as simpler thing. Or should we use something like Cisco Aironet Client adapters for our mobile phone and then use Cisco Aironet Client Utility (is it worth buying for our analysis and measurement)? Any other idea?
  2. What signal level should we consider for a good wireless (dBm)?
  3. That we should propose for authentication, authorization and management accounting? What happens to the roaming wireless? I did not quiteunderstand WCS, WDS and WLC-that should be used for above tasks?

Thanks in advance.

"Use the command on the AP" sh dot11 associations "will give you the clients associated with success.  If you add the MAC address of the client at the end of the command, you will get detailed information.  Look under "Signal Strength" and "Signal to noise".  Under the strength of the Signal, you want a value of-75 dBm or lower (lower values the better).  -76 dBm and is bad.  Under Signal-noise, you want a value of 25 dBm or more (values higher the better).

To measure the strength of the signal, I use Airmagnet, but you can use Netstumbler or Cisco Wireless Site Survey.

Tags: Cisco Wireless

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