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Airmagnet 802.11ac surveying heads-up (v8.6)

Hello all,

 

Whilst this isn't Aruba centric, I know a lot of people in the forums use Airmagnet and I just thought I'd share this with the group.

 

Maybe this will help avoid some challenges and time wastage for some of us?

 

In version 8.6 of Survey Pro (still the latest as I write this), they claim 802.11ac compatibility with a number of adapters. Due to our teams/business receiving a lot of 802.11ac survey requests, we pushed on with testing and execution of 8.6 with a couple of 802.11ac adpaters.

 

Our biggest finding was that although Fluke claim 802.11ac survey capability, this is limited to PASSIVE surveying ONLY. You CANNOT currently DO ACTIVE surveys with ANY 802.11ac adapter. There are also some other minor gaps and challenges, but for me this is by far the biggest.

 

Thanks.

Kudos appreciated, but I'm not hunting! (ACMX 104)

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

Hi,

 

I am doing active surveys quite well with the internal Intel 7260-ac.  There are some limitations as you say, but it seems to work really well for me......apart from the usual Intel device reporting the signal too high.

 

The limitations are that you can't do dual active surveys when using the 7260-ac.  I can't change the roaming paramters within Airmagnet either.

 

Apart from that I am having a pretty good experience with it compared the the massive Airmagnet headaches in the past with previous adapters.

 

Have you tried that Intel adapter?


If my post is helpful please give kudos, or mark as solved if it answers your post.

ACCP, ACMP, ACMX #294
mclarke@arubanetworks.com
Guru Elite

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

The big question is "Under what circumstances would you do an active survey"?



Colin Joseph
Aruba Customer Engineering

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

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

Generally always, if possible.  Better to have the info and not need it than the other way round.

 

Currently I do dual surveys with the 7260-ac doing active and the Proxim USB doing the passive.

 

Racking.Monkey, initially I had probs with 8.6 and active survey on the ac adapter.  I installed the patch release 8.6.1 which addressed the issues, though the Release Notes don't mention anything in there.  Airmagnet support advised me to upgrade to that to fix the issues.

 

Compared to previous versions and adapters I am having very few hassles now.  Previously my survey latop very nearly got a flying lesson from a great height on many occasions.....but now is all good.

 

:smileyhappy:


If my post is helpful please give kudos, or mark as solved if it answers your post.

ACCP, ACMP, ACMX #294
mclarke@arubanetworks.com
Guru Elite

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

Michael_Clarke,

 

I have never done an active survey so I was wondering what the value of one is.

 

Would you do a survey with two different cards, even though they have different properties?

 



Colin Joseph
Aruba Customer Engineering

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

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

The value is that in addition to the signal strength, you get info on what the actual connected rate is, retries, lost packets and roaming behaviour.

 

No problem with different adapters.  Different cards report signal strength differently, but you can calibrate the adapter which will give a more accurate figure......apparently.

 

And using two adapters at the same time saves a lot of time....


If my post is helpful please give kudos, or mark as solved if it answers your post.

ACCP, ACMP, ACMX #294
mclarke@arubanetworks.com
Guru Elite

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

Michael_Clarke,

 

Thank you.

 



Colin Joseph
Aruba Customer Engineering

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

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

Yeah, agree with everything MC said about actives. Broadly speaking, some customers like to do actives as it gives them more "comfort". My view is it's a bit of a glamour show.

MC, you wouldn't believe how annoying that is that you have an adapter capable of actives! For the simple reason I asked Fluke outright, "which ac adapters wiil do actives today". They said in writing "none"! Fluke can be really frustrating!

I'll google your adapter and see what's what. Cheers.
Kudos appreciated, but I'm not hunting! (ACMX 104)

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

Forgot to say...

Yeah, we classically run dual Proxims. Quite good historically.

And yeah, I'm not sold on "Calibration". Looks like BS to me!
Kudos appreciated, but I'm not hunting! (ACMX 104)

Re: Airmagnet 802.11ac surveying heads-up (v8.6)

Yeah, the jury is still out on the calibration.  I did test it a bit at some stage, by surveying a channel without calibration  and then looking at the raw signal with a spectrum analyser.  The difference was about 15 dB.  When I looked at the data calibrated, it pretty much matched what the spectrum analyser said.  That was only a quick 15 min test on one channel though.

 

:smileyhappy:


If my post is helpful please give kudos, or mark as solved if it answers your post.

ACCP, ACMP, ACMX #294
mclarke@arubanetworks.com
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