Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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Client Match graph on Instant

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  • 1.  Client Match graph on Instant

    Posted May 30, 2017 09:49 AM

    Good morning guys,

     

    Do you know how interpret the Client Match graph that is displayed in the Client Match tab on Instant APs? Here is my graph:

    clientmatch.PNG

    What does the X/horizontal axis means? Is it number of clients? Is it channel? I have read documentation but is not very short and not clear. Please help with this.

     

    Regards,

    Julián



  • 2.  RE: Client Match graph on Instant

    Posted Jun 02, 2017 10:07 AM

    Hi guys,

     

    Any ideas?

     

    Regards,

    Julián



  • 3.  RE: Client Match graph on Instant
    Best Answer

    EMPLOYEE
    Posted Jun 05, 2017 03:05 AM

    It shows the count of associated and unassociated clients at different SNR levels. X-axis is the count of clients. Blue line is for unassociated clients and red dots for associated clients. 

     

     



  • 4.  RE: Client Match graph on Instant

    Posted Jun 05, 2017 10:18 AM

    Hi Rajaguru,

     

    Thanks very much for your response. Two more questions about this please:

     

    1. How does the AP compute the signal strength at the client location to calculate the SNR? Or does the client advertises its signal to the AP?

     

    2. How does the AP know the number of unassociated clients? Do the clients advertise their presence always? Do the clients advertise their presence even when they do not want to join the WLAN?

     

    Regards,

    Julián



  • 5.  RE: Client Match graph on Instant

    EMPLOYEE
    Posted Jun 07, 2017 07:00 AM

    Hi Julian, 

     

    1. How does the AP compute the signal strength at the client location to calculate the SNR? Or does the client advertises its signal to the AP?

    ---- It is actually not the signal strength at the client location. It is the signal strength seen by the IAP at the AP location when the client transmits wireless frames.


    2. How does the AP know the number of unassociated clients? Do the clients advertise their presence always? Do the clients advertise their presence even when they do not want to join the WLAN?

    ---- In addition to client service, IAP also monitors the air for the presense of other APs and clients. Use the command "show ap monitor ap-list" to see the list of SSIDs monitored by the IAP. And the command "show ap monitor sta-list" will show the client list monitored by the IAP. Unassociated client is actually something unassociated to the IAP, but these clients are associated to some other SSIDs. IAP knows these clients by monitoring the air.

     



  • 6.  RE: Client Match graph on Instant

    Posted Jun 09, 2017 10:24 AM

    Hi Rajaguru,

     

    Very good explanation, I understand now, many thanks!

     

    Regards,

    Julián