I also seem to remember someone in my area like Nate or George posting about 
problems with a Trango Apex Plus backhaul feeding an ePMP sector and getting 
low throughput but not seeing the same problem with a 450 sector on the same 
backhaul.  If I remember correctly they were kind of pointing the finger at 
Trango, athough from the symptoms I wasn’t sure that was clear since the 450 
seemed to deal with it better.  I’m not sure if the OP had a router between the 
backhaul and the APs, or just a switch.


From: Josh Luthman 
Sent: Saturday, August 20, 2016 4:26 PM
To: [email protected] 
Subject: Re: [AFMUG] New to list - issues (i think) with ePMP 2.4

I posted.  Referred to Justin's issue from Wispamerica time frame.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373


On Aug 20, 2016 5:23 PM, "Ken Hohhof" <[email protected]> wrote:

  I think some of the comments about GigE interfaces might have been 
misunderstood.  I suspect whoever posted those was talking about a situation 
where traffic gets bursted over one link and overflows the buffers in the next 
device.

  Also I would ask what hardware on the Mikrotik routers.  I remember having a 
problem with a Maxxwave ATOM box if I had a GigE interface running at FastE 
(because the radio interface was only 10/100), it would exhibit severe packet 
loss.  Downgrading to 5.x firmware fixed that problem.  I think that was also 
some kind of interface buffer issue.


  From: Chuck McCown 
  Sent: Saturday, August 20, 2016 4:09 PM
  To: [email protected] 
  Subject: Re: [AFMUG] New to list - issues (i think) with ePMP 2.4

  I think he has done that and it is  AP to SM or AP to router that is the 
problem.  

  From: Bill Prince 
  Sent: Saturday, August 20, 2016 3:07 PM
  To: [email protected] 
  Subject: Re: [AFMUG] New to list - issues (i think) with ePMP 2.4

  Then break it down. Put a mikrotik at the end point, and run tests from there 
to all the intermediate points. Isolate the segment (or segments) that are 
causing you grief.



bp
<part15sbs{at}gmail{dot}com>

On 8/20/2016 11:43 AM, Jordan Gregory wrote:

    So here are the things i've tried. 

    Both my main Netonix Switch and the microtik switches has flow control 
turned on. I disabled it and actually, if possible, the speed got worse. So i 
re-enabled it.

    I'm still unable to pass more the 3Mbps anywhere though.

    I've been able to replicate this on every sector now. It has to be 
something upstream from the access points, but I'm just not sure where to look 
at this point.

    Thank You, 

    Jordan Gregory
    Founder / CEO
    Hive Wireless, LLC

    On Thu, Aug 18, 2016 at 10:50 PM, Jordan Gregory 
<[email protected]> wrote:

      Tik switch at the tower had flow control enabled on all ports. I have 
disabled it now. Customer is asleep now i'm sure, so I can't have them check. 
But I'll know more in the morning. This was happening on all SMs though, so I 
may fire one up just to see. 




      Thank You, 

      Jordan Gregory
      Founder / CEO
      Hive Wireless, LLC


      On Thu, Aug 18, 2016 at 10:46 PM, Jordan Gregory 
<[email protected]> wrote:

        They aren't airfiber, they are Mimosa B5s 

        Microtik routers/switches.

        I didn't enable flow control, but i'll double check


        Thank You, 

        Jordan Gregory
        Founder / CEO
        Hive Wireless, LLC


        On Thu, Aug 18, 2016 at 10:43 PM, George Skorup <[email protected]> 
wrote:

          What is all of the equipment involved? Have you looked for CRC or FCS 
errors on any ethernet links? Unfortunately, the ePMP gear does not have 
ethernet CRC errors stats. What about flow control on your GigE interfaces?

          Have you ran iperf from behind the SM all the way through to your 
router?

          You say 750Mbps. Are they AirFiber radios? Flow control is what comes 
to my mind there. If you have flow control enabled anywhere, turn it off and 
see if end-user speed increases. We don't use it because pause frames cause 
jitter for VoIP.


          On 8/18/2016 10:34 PM, Jordan Gregory wrote:

            Everyone,

            I enabled the MIR profiles and set the one I am talking about to 
25000/5000, the link test shows this speed perfectly, except when we do a 
speedtest via speedof.me or speedtest.net or anything really, it's only showing 
3Mbps.

            I have a cambium support ticket open, but that may take a while.

            I've dug through every setting I can find and can't see anything 
that would be causing this.

            Here is the generic layout of my network:

            SM --><-- AP --> L3 Switch --> BH Radio --> <-- BH Radio --> Switch 
--> Router --> Internet

            I've tested the speed (iperf) all the way from my router to my l3 
swtich at the tower and I'm getting roughtly 750Mbps avg to the l3 switch. I've 
tested throughput on the switch as well and I was easily passing 5Gbps through 
it.

            I've seen no speed mismatch errors anywhere on the network.


            Thank You, 

            Jordan Gregory
            Founder / CEO
            Hive Wireless, LLC


            On Thu, Aug 18, 2016 at 11:05 AM, Kerry <[email protected]> 
wrote:

              Here's a couple things to check,


              Check the ap, is MIR under QOS enabled? if so, there should be an 
entry under monitor->wireless for the sm showing the rate the sm is 'queued' at.



              The wireless link test will only show it passing roughly what it 
is queued at. Also, check the MCS column. If it;s a good link it will be at the 
max Rate setting configured 


              under the radio config of the ap






              On 8/18/2016 11:46 AM, Jordan Gregory wrote:

                Good day list,

                I have a Force 200 operating at very good signal levels but for 
some reason, I can seem to get any more than 3Mbps out of the connection.

                Did i miss a setting somewhere?

                Backstory: Brand new wisp

                Thank You, 

                Jordan Gregory
                Founder / CEO
                Hive Wireless, LLC









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