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Contributor I

Best Practices for Min Transmit/Max Transmit Power Levels

Hey All -

 

Had a few quick questions since transistioning to the Aruba line, have 4 IAP-225s in service spread across two floors in approx 3000 sq ft of space (2 on 1st floor, 2 on second floor - ceiling mounted)

 

It appear the min power level is set to 18 and max level is set to "Max" by default -  with those settings I get the following:

 

IAP.tiff

Note the utilization across both 2.4 and 5.0GHz

 

I have client match enabled but it doesn't seem to be balancing the clients all that well since the clients are near all 4 access points.  

 

Any suggestions for optimizing the configuration?

 

RF.jpg

 

Spectrum.jpg

RF2.jpg

With adjusted power settings.

 

 

Thanks

Guru Elite

Re: Best Practices for Min Transmit/Max Transmit Power Levels

Under the arm tab uncheck 80 mhz channels. Make your min 9 and your max 15, and then check the utilization.

*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
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Contributor I

Re: Best Practices for Min Transmit/Max Transmit Power Levels

Thanks - out of curioisity, I was previously informed to enable 80Mhz (to increase WiFi speed for connected clients - all 4 APs are connected to a switch with a 1Gig by 1 Gig fiber connection.

 

Is the 80MHz causing the utilization issue?

 

Thanks

Highlighted
Guru Elite

Re: Best Practices for Min Transmit/Max Transmit Power Levels

Utilization is an issue on the access points that are both on channel 32E on the 5ghz band. That is why 80 MHz should be unchecked

Utilization is a problem in the 2.4ghz because the poer is too high. Other non WiFi devices also reside on the 2.4 ghz that exacerbate this problem. Maybe you should make your max 12 since you have such a small space.

*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
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Guru Elite

Re: Best Practices for Min Transmit/Max Transmit Power Levels

Contention is greatest at the wifi layer, so if you do not reduce contention, you will not get anywhere near wired speeds.

 


*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
ArubaOS 8.3 User Guide
InstantOS 8.3 User Guide
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Re: Best Practices for Min Transmit/Max Transmit Power Levels

Hi guys,

 

What are the risks of setting min and max Tx power too far, for example 3 and 24 dBm? Theoretically APs will sense their power each other and ARM will do its job. If there is interference between them they will reduce their power and if not they will increase their power.

 

Occasional Contributor II

Re: Best Practices for Min Transmit/Max Transmit Power Levels

Hello,

 

I am wondering about a similar issue I am having with my AP's.

 

I have AP's that are getting 80 clients from AP's that are 80'-90' away even when I have AP's placed 15' away.

 

I have ARM set to balance and my transmit power is set for min-9 and max-12.

 

Just wondering if I should have my power changed? Trying to cover rooms about 30'x30'  but also a gym that is 100'x100' and an auditorium that is 100'x100' 

 

Any ideas?

 

Thanks!

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