Thursday, December 13, 2012

What Wireless Should Look Like

This is a great example of what wireless SHOULD look like when you view multiple SSIDs in the same area.  Realistically, if this is your enterprise environment, you should really only have the amount of SSIDs you need, but in the case below, you will see a ton of them together.  Its in a lab environment that we created during my Meru trip.  You should see SSIDs residing on 1, 6, and 11.  There shouldn't be any overlapping frequencies at all.  That overlapping can cause interference, which is definitely unwanted.  See below what you should see:

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1 comment:

  1. AnonymousJanuary 4, 2013 at 4:33 PM

    I tend to agree if your running a low dense deployment. Now your method will work if your neighbor AP is on the non overlap. If you can see over 3 AP's in one spot, I typically let my AP's auto tune on all channels (1-11). Then if I'm seeing 4-5 AP's, they will spread out more evenly.

    Example. client sees the following using 3 channels

    AP1 -65dbm ch1
    AP2 -69dbm ch6 - the snr is only 3
    AP3 -74dbm ch11
    AP4 -72dbm ch6 - the snr is only 3

    Example. client sees the following using all channels

    AP1 -65dbm ch1 - can see ch3 as overlap, but there is some channel spacing
    AP2 -69dbm ch8 - can see ch11 as overlap, but there is some channel spacing
    AP3 -74dbm ch3 - can see ch1 as overlap, but there is some channel spacing
    AP4 -72dbm ch11 - can see ch8 as overlap, but there is some channel spacing

    A higher snr is achieved with additional channel spacing.

    Give it a try

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