Disable Rates

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  • Updated 4 months ago
Hello

I'm doing an implementation of an aerohive wireless network, but the roaming is not taking, I would like to know what is the recommendation of rates to disable for 2.4 and 5 to force roaming, this given that the apes are quite close and are thought for high density.

Thank you
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Danilo Arias

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Posted 4 months ago

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Crowdie, Champ

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A good starting point would be:

  • Disable all data rates below 12 Mbps
  • Have 12 Mbps as the only basic data rate
  • Have 18 Mbps and above as optional data rates 
(Edited)
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Danilo Arias

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Hello

someone could help me quickly clarifying the operation of the rates, as probe deactivating the rates of b / g leaving 48 basic and 54 optional BUT when I apply and perform the tests and I go away I see that in my phone with aruba utilities shows me that the rate goes down as I go away starting at 72Mbps then going to 54Mbps, then at 36Mbps and then it falls, the same thing happens to me with my laptop when I move away from the low card monitoring rate to 72, 54, 28,

It is assumed that the teams to move away and have a lower rssi and increase snr should only take the last rate 48Mbps and then if not download but disconnect from the wireless network?

Thank you
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Crowdie, Champ

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Those will be the MCS rates used by 802.11n and 802.11ac clients.  Unless a vendor specifically advises otherwise leave these as they are.

MCS rates were introduced with 802.11n to support wider channels than 802.11a/b/g and multiple spatial streams.
(Edited)
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Danilo Arias

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Hello

Thanks indeed the connection was being made by 2.4 802.11n eliminate some rates and the tests were successful, however the client has devices that come up with 802.11ac and do not roam properly, in this case you can have the rates modified?

Thank you
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Crowdie, Champ

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If you are brave enough you could disable some of the lower MCS rates as these are used for both 802.11n and 802.11ac clients.

That said, I have never had to disable MCS rates (except MCS0 for a specific VoWiFi handset) so I would look at:
  • Your access point placement.
  • Transmit power levels.  If your access points are very densely deployed you may have to drop the transmit powers to 3 or 5 dBm and forget about clients connecting to the 2.4 GHz radios (just don't broadcast "mission critical" SSIDs on the 2.4 GHz radios).
  • Antenna selection.  Have you deployed omni-directional antennas where a directional antenna would be a better option?
(Edited)