They do offer sync, but I'm not sure what the advantage is of using an 8ms TDMA window (they support 2ms, 4ms and 8ms)... more capacity, maybe? I have ours running in Auto, and I'm seeing 1ms average ping times across it.
On Wed, Jan 25, 2017 at 4:13 PM, Josh Luthman <[email protected]> wrote: > Why are we looking at 8ms of latency on this radio? Does it offer sync? > The website doesn't say. > > > Josh Luthman > Office: 937-552-2340 <(937)%20552-2340> > Direct: 937-552-2343 <(937)%20552-2343> > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > > On Wed, Jan 25, 2017 at 4:55 PM, Chris Wright <[email protected]> wrote: > >> Traffic Split set to Auto: >> >> PHY 1300/1300 >> >> >> >> Traffic Split set to 75/25, 8ms window: >> >> PHY 1560/1300 >> >> >> >> Anyone can see why one should prefer setting the Traffic Split to 75/25 – >> it provides more bandwidth in one direction. >> >> >> >> Chris Wright >> >> Network Administrator >> >> >> >> *From:* Faisal Imtiaz [mailto:[email protected]] >> *Sent:* Wednesday, January 25, 2017 12:35 PM >> *To:* [email protected] >> *Cc:* Chris Wright >> >> *Subject:* Re: [AFMUG] B11, TDMA, and TCP >> >> >> >> Hi Chris, >> >> >> >> I want to compare something with my link... >> >> >> >> Can you please share what's the listed PHY rates were on your PCN for the >> link. >> >> >> >> 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: >> [email protected] >> >> >> ------------------------------ >> >> *From: *"Chris Wright" <[email protected]> >> *To: *[email protected] >> *Sent: *Wednesday, January 25, 2017 11:21:12 AM >> *Subject: *Re: [AFMUG] B11, TDMA, and TCP >> >> Power is already at the minimum (10dBm) on both sides. 2.2km link. >> >> >> >> Chris Wright >> >> Network Administrator >> >> >> >> *From:* Af [mailto:[email protected] <[email protected]>] *On >> Behalf Of *Faisal Imtiaz >> *Sent:* Tuesday, January 24, 2017 9:56 PM >> *To:* [email protected] >> *Subject:* Re: [AFMUG] B11, TDMA, and TCP >> >> >> >> >SNR 41, 42, 41, 41 >> >> >> >> Turn down your power, and bring the SNR in the 30-35 range... >> >> it will improve thruput and allow for the higher modulation. >> >> >> >> 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: >> [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 <(305)%20663-5518> >> >> Help-desk: (305)663-5518 <(305)%20663-5518> 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 >> >> >> >> >> >> >> >> >> >> >
