What do you get if you run a MT TCP Btest across the link between the
CCRs in both 75/25 and auto?
And are you doing any traffic shaping or policing on the customers?
On 1/24/2017 11:41 PM, Chris Wright wrote:
CCR1036 - B11 link - CCR1036 - Test laptop on bridged eth port. No
routing at this link, pure L2. Will continue investigating with
wireshark as suggested. Shaking my head that Mimosa is content to wash
their hands of the problem until I do their dev team's job for them.
Sent via mobile phone.
On Jan 24, 2017, at 5:35 PM, Josh Reynolds <j...@kyneticwifi.com
<mailto:j...@kyneticwifi.com>> wrote:
Wireshark it and look for tcp retransmissions. Save pcaps from both
modes. Send them to Mimosa.
On Jan 24, 2017 7:02 PM, "Chris Wright" <ch...@velociter.net
<mailto:ch...@velociter.net>> wrote:
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 <http://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 <http://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
