Wireless Access

Hi sir,

         I have a question！

         In the AOS 8 MM with md topology, I want to fix the channel and transmit power of one of the APs. How do I implement this?

          Also, does the arm work when I turn off the airmach?

You need to use the "Airmatch AP freeze" command to statically set the access point power and channel.  http://www.arubanetworks.com/techdocs/ArubaOS_82_Web_Help/Web_Help_Index.htm#ArubaFrameStyles/1CommandList/ap_airmatch.htm?Highlight=freeze

When you freeze the channel and power, it stays like that.  If you unfreeze, Airmatch resumes working.

Thank you a lot.

So, I can understand that when I turn off Airmacth globally, arm will funcation,right?

When you execute a freeze, those access points have static channel and power.  All the rest of the access points function on their Airmatch channels and power.  ARM does not come into the picture, at all.

I don't believe you can turn off AirMatch globally, to do so you would have to do an AP Freeze on all APs, and even then it would still be enabled, but not applying the channel / power plan. If you have an MM, you are using Airmatch.

Can you please clarify my statements?

(AOS8)

MM Deployment: AirMatch runs, ARM is obsolete?

Standalone Deployment: Airmatch is not possible, ARM runs?

Previously we used to configure the arm-profiles to give it a power range.

rf arm-profile "default-a"
  max-tx-power "18"
  min-tx-power "12"
rf arm-profile "default-g"
  max-tx-power "12"
  min-tx-power "6"

Now we configure the dot11a/g radio-profile

rf dot11a-radio-profile "default"
    eirp-max 18
    eirp-min 12
!
rf dot11g-radio-profile "default"
    eirp-max 12
    eirp-min 6 

Under a dot11a/g radio-profile there is always a ARM Profile assigned. 

Adaptive Radio Management (ARM) Profile        default-a

How are those technologies working together or not, why there is a arm profile under a dot11a/g profile?

Greetings

Marc

Airmatch does not run unless there is an MM in your network on AOS 8

Please see Master Controller Mode (MCM) in the AirubaOS 8 Fundamentals Guide here:  https://www.arubanetworks.com/assets/atmosphere/2018-Airheads/Fundamentals%20Guide%20-%20ArubaOS%208%20Fundamentals.pdf

But does ARM still run when a MM is in my network?

Why there is a arm profile under a dot11a/g profile? - Sorry this is so confusing.

ARM does not run when an MM is in your network, but the ARM noise wait parameter in the ARM profile parameter is still used (when an MM is present) to force a channel change when there is too much noise on a channel.  The other parameters in the ARM profile are ignored when Airmatch is running and an MM is in the network.

If the same configuration is loaded on a controller in MCM (no MM) mode, the Airmatch parameters in the radio profile are ignored and the ARM parameters are used.  I hope that makes sense.