Wireless Access

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Contributor I
Posts: 86
Registered: ‎07-08-2013

Anyone know the minimum TX EIRP on AP-215?

Anyone know this value?  ARM profiles can be dropped to 3 dBm, which I have tried, but no APs are below 5, (and most are at 5).  I have a school district that another VAR deployed an 802.11ac wireless deployment.  The walls are very thin.  I have already dropped BC/MC, disabled TX rates <18 db in SSID Profile, set ARM to Min 3, Max 12, and most of the other recommendations in the VRD.

 

Still, most APs are at 5 dBm on Radio 1.  This has me wondering if the AP-215 will go below 5 dBm Min TX.

 

BTW I have an open TAC case due to code 6.4.2.12 not having ARM lower TX powers.  Despite configuring lower EIRP values in ARM, the APs still broadcast at their maximum 23 dBm.

Guru Elite
Posts: 8,637
Registered: ‎09-08-2010

Re: Anyone know the minimum TX EIRP on AP-215?

What problem are you trying to solve? The deployment is too dense?

Tim Cappalli | Aruba Security TME
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
Contributor I
Posts: 86
Registered: ‎07-08-2013

Re: Anyone know the minimum TX EIRP on AP-215?

Trying to improve roaming and client connectivity.  This is a typical school district 1 AP per classroom deployment.  A "Show AP Active | Inc Filter" revealed that a high percentage of APs are broadcasting at the minimum configured ARM TX EIRP of 6 dBm.  I lowered this to 3 dBm, and most APs dropped to 5 dBm (NOT 3).  This has me wondering if the AP-215 can actually go lower than 5 dBm TX power?

Guru Elite
Posts: 8,637
Registered: ‎09-08-2010

Re: Anyone know the minimum TX EIRP on AP-215?

Hm interesting. I don't think I've tried to go that low. Hopefully someone else has some insight. Do you have a TAC case open on this issue as well?


Tim Cappalli | Aruba Security TME
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
Guru Elite
Posts: 21,270
Registered: ‎03-29-2007

Re: Anyone know the minimum TX EIRP on AP-215?

Wifi_Willie,

 

Choose an AP and type "show ap debug driver-log ap-name <name of ap>".  I believe the internal antenna gain is 5db for the AP 215 so that is the lowest you can set it.  Are you having problems on the 2.4ghz or the 5ghz band?  If it is on the 5ghz band, just make sure you are using 20mhz channels and you could have enough non-overlapping channels to make it work.  If it is on the 2.4ghz band, you might want to consider ARM mode-aware for the ARM profile on the 2.4ghz band....



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Contributor I
Posts: 86
Registered: ‎07-08-2013

Re: Anyone know the minimum TX EIRP on AP-215?

That is right, I just checked.  The internal is 5 db on the 215.  That is the floor.  Mode Aware is enabled.

Guru Elite
Posts: 21,270
Registered: ‎03-29-2007

Re: Anyone know the minimum TX EIRP on AP-215?

[ Edited ]

Okay.  If the customer has Airwave, make sure Amon is configured so that you can track the RF utilization on those access points at midnight and at peak before and after you make your changes.  At midnight the RF utilization on either band should be no more than 1 to 5%, otherwise you probably still have too much coverage.   Also make sure you have client-aware off so that the APs are free to move to better channels throughout the day, at least after you first make your changes.



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Contributor I
Posts: 86
Registered: ‎07-08-2013

Re: Anyone know the minimum TX EIRP on AP-215?

The next step may be disabling the 2.4 gHz radios on some APs.  I am assuming the best way to do this is to have a print of the floor plan, list out all the APs, and begin to manually assign channels on paper to create a channel map, which will reveal logical breaks at which point to disable radios.

Contributor I
Posts: 86
Registered: ‎07-08-2013

Re: Anyone know the minimum TX EIRP on AP-215?

No Airwave.  :(

Guru Elite
Posts: 21,270
Registered: ‎03-29-2007

Re: Anyone know the minimum TX EIRP on AP-215?

Okay.  Typing "show ap radio-summary" will get you the current RF utilization for all access points, just like the dashboard, so you can observe where you have the highest utilization at the time.

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

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