actually i saw the tik stats on pause frames right in winbox...

  ----- Original Message ----- 
  From: Faisal Imtiaz 
  To: [email protected] 
  Sent: Wednesday, January 25, 2017 8:50 AM
  Subject: Re: [AFMUG] B11, TDMA, and TCP


  FYI.... 


  Netonix provides extended stats on the interface, makes it easy to see what 
is going on..


  on the mikrotik extended stats are available via CLI    /interface ethernet 
print stats


  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]



------------------------------------------------------------------------------

    From: "CBB - Jay Fuller" <[email protected]>
    To: [email protected]
    Sent: Wednesday, January 25, 2017 2:21:15 AM
    Subject: Re: [AFMUG] B11, TDMA, and TCP


    the flow control story came from the netonix forums and i agree, it does 
not negotiate flow control property in the netonix switch.
    that being said, when connected to a mikrotik, there ARE pause frames being 
generated, and mimosa insists flow control is
    enabled / working on their devices.

    speaking of which, i just put in like 3 new mimosa links ; i haven't 
tinkered with flow control on them yet.


      ----- Original Message -----
      From: Faisal Imtiaz
      To: [email protected]
      Sent: Tuesday, January 24, 2017 11:57 PM
      Subject: Re: [AFMUG] B11, TDMA, and TCP


      also..


      in regards to flow control.. turn it on (auto) on the MT side 
      and also turn it on on the B11 radio.


      Additionally look at the B11 logs and see if your ethernet port is 
flapping ...


      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]


--------------------------------------------------------------------------

        From: "Chris Wright" <[email protected]>
        To: [email protected]
        Sent: Wednesday, January 25, 2017 12:41:37 AM
        Subject: Re: [AFMUG] B11, TDMA, and TCP

        Firmware 1.4.4
        SNR 41, 42, 41, 41
        Flow Control had no effect so it remains disabled for now.


        Sent via mobile phone.

        On Jan 24, 2017, at 9:05 PM, Faisal Imtiaz <[email protected]> 
wrote:


          What version for firmware is on the radio ? 


          and   What your SNR on the two chains (both directions, i.e. 4 
readings).


          I can tell you that we do not see the behavior you are describing 
below...
          But I can also tell you that we had to do some 'tuning' on settings 
including flow control ..
          our B11's plug into netonix Switches.... 


          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]


----------------------------------------------------------------------

            From: "Chris Wright" <[email protected]>
            To: [email protected]
            Sent: Tuesday, January 24, 2017 8:02:58 PM
            Subject: [AFMUG] B11, TDMA, and TCP

            According to Mimosa, I should be telling my customers that if 
they’re using the most popular metric in the world for testing internet speeds, 
they’re doing it wrong (I concede that while this may be technically correct, 
my customers – and yours too – don’t do technically correct very well.”



            When TDMA is set to 75/25, 8ms window, MAC Tx/Rx is 980/290. This 
gives me as much Tx bandwidth as I require for peak times, but no one client IP 
can download more than 20mbps of TCP traffic (from my speedtest.net at the 
edge, nor anyone else’s beyond my edge).



            When TDMA is Auto, MAC Tx/Rx is 780/780 (lower Tx, which is 
undesirable as it’s 100mbps shy of what I need during peak hours), but TCP 
throughput per client is greatly increased (150+mbps).



            So I’m in a pickle. Either my scrupulous customers can get those 
coveted speedtest.net results they love seeing as they run them every thirty 
seconds ad-nauseum at the cost of overall Tx capacity of the link. Or I give 
myself some headroom in link capacity but the fastest speeds my 100mbps clients 
can see is 20mbps.



            What’s even stranger is that client upload seems unaffected. I can 
upload 150+mbps from my test on the link no matter what TDMA is configured. I 
hit up Mimosa’s chat support was as chipper as they were unyielding in their 
idea that I should test in a way that caters to the B11’s shortcomings. I’ve 
been a Mimosa fanboy for a while now but boy am I feeling burned right now.



            Chris Wright

            Network Administrator






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