Controller-less WLANs

What is local-probe-threshold on ssid-profile configuration on controller?

QuestionWhat is local-probe-threshold on ssid-profile configuration on controller?

 

The Local Probe Request Threshold specifies an SNR threshold for the probe requests. If a threshold is specified, the AP will not respond to probe requests received with SNR lower than the threshold.
This will of course affect the ability of clients farther from the AP to connect.
 
Local-probe-threshold setting helps great to address far roaming and sticky client issues.
Once we enabled this feature, it should take effect right away.
 
Here is the exact configuration from CLI:-
------------------------------------------------------
(Master) #configure terminal
Enter Configuration commands, one per line. End with CNTL/Z
 
(Master) (config) #wlan ssid-profile test
(Master) (SSID Profile "test") #local-probe-req-thresh ?
<local-probe-req-thre.. The SNR threshold below which incoming probe
                        requests will get ignored (only used if
                        local-probe-response is also enabled)
 
Normally in production environment, it is advised to enable Hide SSID along with Local-probe-threshold as some clients attach to the AP since its broadcasting the SSID (beacons).
 
This helps for client hand-off from one AP to another AP results in improved roaming. Best practice we should set this up to value of 20 or 25 to get better results.
 
To enable Hide-ssid:-
----------------------------
 
(Master) #configure t
Enter Configuration commands, one per line. End with CNTL/Z
 
(Master) (config) #wlan ssid-profile sri
(Master) (SSID Profile "sri") #hide-ssid ?
<cr>
 
Screen shot from WEBUI :-
----------------------------------
 Go to Configuration tab--> Security--> AP configuration--> Edit ap-group--> Wireless LAN -->Virtual AP--> Under Virtual-ap choose click on ssid-profile -->Click on Advanced tab
rtaImage2.jpg
 
 
 
This feature helps to keep a device from attaching to a very, very weak access point on the other side of the room, usually in an environment that is not dense.
Client roaming decision are made by clients no matter how much we try to influence and what all we could do is to encourage them.
 
 
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Last update:
‎07-10-2014 02:56 PM
 
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