I'm confused as to why you would get less capacity with TDMA set to auto...

On Wed, Jan 25, 2017 at 10:31 AM, CBB - Jay Fuller <
par...@cyberbroadband.net> wrote:

>
> actually i saw the tik stats on pause frames right in winbox...
>
>
> ----- Original Message -----
> *From:* Faisal Imtiaz <fai...@snappytelecom.net>
> *To:* af@afmug.com
> *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 <(305)%20663-5518> x 232
>
> Help-desk: (305)663-5518 <(305)%20663-5518> Option 2 or Email:
> supp...@snappytelecom.net
>
> ------------------------------
>
> *From: *"CBB - Jay Fuller" <par...@cyberbroadband.net>
> *To: *af@afmug.com
> *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 <fai...@snappytelecom.net>
> *To:* af@afmug.com
> *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 <(305)%20663-5518>
>
> Help-desk: (305)663-5518 <(305)%20663-5518> Option 2 or Email:
> supp...@snappytelecom.net
>
> ------------------------------
>
> *From: *"Chris Wright" <ch...@velociter.net>
> *To: *af@afmug.com
> *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 <fai...@snappytelecom.net>
> 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 <(305)%20663-5518>
>
> Help-desk: (305)663-5518 <(305)%20663-5518> Option 2 or Email:
> supp...@snappytelecom.net
>
> ------------------------------
>
> *From: *"Chris Wright" <ch...@velociter.net>
> *To: *af@afmug.com
> *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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