>>>> We have a lot of VoIP customers. I am surprised that we haven't received a 
>>>> single complaint. 
Consider yourself very lucky... 

>>>> However, there is no way I am going to do a complete forklift of the 
>>>> entire network at this point. 
Agreed, and this is why some of us are eagerly awaiting for the Bitlomat 250... 

>>>> I am not the only one creating noise. There are at least four other 
>>>> providers in this area to contend with. 
Results of field deployments of EPMP in congested RF environments, offer 
impressive results... 

Faisal Imtiaz 
Snappy Internet & Telecom 
7266 SW 48 Street 
Miami, FL 33155 
Tel: 305 663 5518 x 232 

Help-desk: (305)663-5518 Option 2 or Email: [email protected] 

----- Original Message -----


From: "Jeremy" <[email protected]> 
To: [email protected] 
Sent: Saturday, May 16, 2015 12:45:27 PM 
Subject: Re: [AFMUG] ePMP vs Ubiquiti AC 

Yeah, I just researched it further on the forums. We have a lot of VoIP 
customers. I am surprised that we haven't received a single complaint. The 
uptime on these radios are over a year though. I'd love to be able to use 
back-to-back frequencies, or to not have to have such large guard bands in 
between freqs. However, there is no way I am going to do a complete forklift of 
the entire network at this point. I am not the only one creating noise. There 
are at least four other providers in this area to contend with. I will have to 
investigate this further and see if I can move some channels around to resolve 
this. Thanks for the heads up. 

On Sat, May 16, 2015 at 10:40 AM, Faisal Imtiaz < [email protected] > 
wrote: 

<blockquote>

That is the infamous 'stuck beacon' issue... 
Essentially, every time you see that in the log of an AP, for about couple of 
seconds that AP totally stops communications (TX & RX) while doing a reset. 
This is a bug associated with the atheros chip set used in the Rocket M.. XW 
firmware designated ones are with a different chip set... 

This problem shows up in moderate to heavy RF interference environments. 

For IP Services, even video (due to buffering) the effect is minimal, however 
for voice services the affect is bit more disastrous (causes very distinct 
voice drop outs). 

Radios using GPS sync can avoid such issues. 

FWIW:- Radios not using GPS sync are supposed to have a full 20mhz channel 
separation between adjacent Radios (AP)...... EPMP Radios (AP) with GPS Sync 
only need 10mhz channel separation and PMP needs only 5mhz channel separation. 

Say in your environment, you are most likely causing your own noise and 
interference (assuming that there is no other provider) with the non gps sync 
radios, and there is a very good chance that you are not getting the most out 
of your Fixed Wireless Network (the current performance may very well be 
acceptable, but not the most efficient). 

If you were running GPS sync radios, then your channel use would be much less 
(due to channel reuse), and you would be not creating your own noise, and as 
such having a more efficient Fixed Wireless Radio. 

GPS is not a magic bullet, but it is a very powerful tool in keeping things 
running well and using limited resources very efficiently. 

It is purely my opinion that in 802.11ac, because getting larger amount of thru 
put requires fat channels (40/80/160mhz), it is even more important to have GPS 
sync, so that you can have a function, effective channel reuse. 


Faisal Imtiaz 
Snappy Internet & Telecom 
7266 SW 48 Street 
Miami, FL 33155 
Tel: 305 663 5518 x 232 

Help-desk: (305)663-5518 Option 2 or Email: [email protected] 



<blockquote>
From: "Jeremy" < [email protected] > 
To: [email protected] 
Sent: Saturday, May 16, 2015 12:05:54 PM 
Subject: Re: [AFMUG] ePMP vs Ubiquiti AC 

Faisal, 

Yes, I am seeing that in almost all of the M5s. I haven't had any reports of it 
being service affecting. What does it mean? 

On Fri, May 15, 2015 at 10:07 PM, Faisal Imtiaz < [email protected] > 
wrote: 

<blockquote>

Hi Jeremy, 
A bit off topic, but can you ssh into a hand full of your Rocket M's, and do a 
dmesg and see if you get something like this... 

ath_bstuck_tasklet: stuck beacon; resetting (bmiss count 9) 

Regards 

Faisal Imtiaz 
Snappy Internet & Telecom 
7266 SW 48 Street 
Miami, FL 33155 
Tel: 305 663 5518 x 232 

Help-desk: (305)663-5518 Option 2 or Email: [email protected] 



<blockquote>
From: "Jeremy" < [email protected] > 
To: [email protected] 
Sent: Friday, May 15, 2015 10:17:26 PM 
Subject: Re: [AFMUG] ePMP vs Ubiquiti AC 

I have 22 towers with over a hundred UBNT APs in a valley 11 miles wide, built 
over the top of a synced Canopy network. I take about 10 customers a week off 
of their 450 platform and we are constantly told that the difference is night 
and day better on our network. Careful spectrum management and proper AP 
loading wins over sync every time. 

On Fri, May 15, 2015 at 8:11 PM, Mathew Howard < [email protected] > wrote: 

<blockquote>

No, we can't always control that, but if I can at least control it sometimes, 
I'll take it. 

On Fri, May 15, 2015 at 8:48 PM, Josh Reynolds < [email protected] > wrote: 

<blockquote>

And you have the opinion you can control that, constantly, on unlicensed 
spectrum? 

*smirk* 
Josh Reynolds
CIO, SPITwSPOTS www.spitwspots.com 
On 05/15/2015 05:46 PM, Mathew Howard wrote: 

<blockquote>

That's a very good point, regardless of what some customers seem to think, mbps 
really isn't the most important thing... 

On Fri, May 15, 2015 at 8:41 PM, Adam Moffett < [email protected] > wrote: 

<blockquote>

I've always considered mbps to be among the least important concerns on PTMP, 
well below packet loss, jitter, QoS features, manageability, consistency, and 
reliability. Which is why I'm not super keen on *any* of the wifi stuff. This 
seems is like an argument about whether a Pinto is better than a Fiesta. 
</smug> 


<blockquote>
One could say "I can sync but I can only get 60 Mbps per sub" (*) 

Another person could say "I can't sync but I can get 200+ Mbps per sub" (*) 

(*) under the right conditions 

Your market and deployment strats will dictate which is more important. 
Josh Reynolds
CIO, SPITwSPOTS www.spitwspots.com 
On 05/15/2015 04:56 PM, SmarterBroadband wrote: 

<blockquote>



But no sync. 




From: Af [ mailto:[email protected] ] On Behalf Of Peter Kranz 
Sent: Friday, May 15, 2015 3:12 PM 
To: [email protected] 
Subject: Re: [AFMUG] ePMP vs Ubiquiti AC 




AC blows doors on ePMP 



Peter Kranz 
www.UnwiredLtd.com 
Desk: 510-868-1614 x100 
Mobile: 510-207-0000 
[email protected] 



From: Af [ mailto:[email protected] ] On Behalf Of Jason McKemie 
Sent: Friday, May 15, 2015 11:21 AM 
To: [email protected] 
Subject: [AFMUG] ePMP vs Ubiquiti AC 




I know this isn't an apples to apples comparison, but what are other's thoughts 
on these two products? I'm looking at 5GHz, and I know the AC gear doesn't have 
the lower 5GHz bands - hopefully they will in the near future. 





-Jason 




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