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replicant

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So we have 2 ISP's here at work one 20mbps and one 30mbps, now i don't believe we're getting our promised 100% international guaranteed internet as when we do international speedtests we never get over 5mbps now when asking them about it they gave me a graph saying i should base my speedtests on the latency as per the below

RTT 10 ms => TCP throughput = 52428000 bps = 52Mbps
RTT 20 ms => TCP throughput = 26214000 bps = 26Mbps
RTT 50 ms => TCP throughput = 10485600 bps = 10Mbps
RTT 100 ms => TCP throughput = 5242800 bps = 5.2Mbps
RTT 150 ms => TCP throughput = 3495200 bps = 4.3Mbps
RTT 200 ms => TCP throughput = 2621400 bps = 2.5Mbps
RTT 300 ms => TCP throughput = 1747600 bps = 1.7Mbps
RTT 500 ms => TCP throughput = 1048560 bps = 1Mbps

is this scale BS and if it's not is there a way to test that i'm getting 20 and 30mbps?
 
What speed test site are you using?

Their scale is showing the maximum throughput for a single thread, I'm just not sure offhand if it's 100% accurate.

If you are using a speed testing site like speedtest.net you should get higher than that because it's multi-threaded. I get about 20 - 30Mbps to international locations (generally 20Mbps to US and 30Mbps to UK), this is on a 40Mbit line.
 
replicant said:
So we have 2 ISP's here at work one 20mbps and one 30mbps, now i don't believe we're getting our promised 100% international guaranteed internet as when we do international speedtests we never get over 5mbps now when asking them about it they gave me a graph saying i should base my speedtests on the latency as per the below

RTT 10 ms => TCP throughput = 52428000 bps = 52Mbps
RTT 20 ms => TCP throughput = 26214000 bps = 26Mbps
RTT 50 ms => TCP throughput = 10485600 bps = 10Mbps
RTT 100 ms => TCP throughput = 5242800 bps = 5.2Mbps
RTT 150 ms => TCP throughput = 3495200 bps = 4.3Mbps
RTT 200 ms => TCP throughput = 2621400 bps = 2.5Mbps
RTT 300 ms => TCP throughput = 1747600 bps = 1.7Mbps
RTT 500 ms => TCP throughput = 1048560 bps = 1Mbps

is this scale BS and if it's not is there a way to test that i'm getting 20 and 30mbps?
Click to expand...

They're talking about the TCP window. The farther the distance, the slower the speed.

http://en.wikipedia.org/wiki/TCP_window_scale_option
 
how do i know if a server we're testing too is multi threaded and yes i'm using speedtest.net
 
the 30mbps is a 1:1 wireless connection from vox and the 20mbps is a 1:1 wireless solution from Virtual Office
 
replicant said:
the 30mbps is a 1:1 wireless connection from vox and the 20mbps is a 1:1 wireless solution from Virtual Office
Click to expand...

What speedtest locations are you using?

Try these two:

London (Vodafone UK)
Washington DC (Speedtest.net)

I normally get consistent results from these two.
 
for the sort of performance you seem to be requiring you should consider fibre
 
I have a 40Mbit VDSL account with Vox also.

Those speeds don't look right, especially for a 1:1 service. The latency also looks a bit high for the UK server when compared to the US one. Are you sure the connection was completely idle when you ran these tests?

This is what I got from a single threaded test on testmy.net:



Here is my speedtest.net London speed (multi-thread):

3752890075.png
 
1st off thanks for the time for helping out here it's appreciated then we're we located we cant have fiber yet as there's alot of construction happening and it's a bit remote. We're in four-ways but when i ping my servers at the VOX data center i get like a 5ms response time

I've done another speedtest and i can see the line is not in use and i get this
http://www.speedtest.net/my-result/3752991543
 
replicant said:
1st off thanks for the time for helping out here it's appreciated then we're we located we cant have fiber yet as there's alot of construction happening and it's a bit remote.
Click to expand...

If you send a mail to [email protected] with your GPS coordinates and business name we'd be happy to run a preliminary fibre feasibility for your at no charge.
 
our contracts expire next year June so i'll start January with the fiber feasibility tests and so on for now i'm just trying to keep the employees happy
 
Fibre can take anywhere from a week to 6 months for deployment depending on the requirements and available infrastructure. Always best to check viability early to plan properly. ;)
 
I'm nottoo worried about fiber because if i put all my eggs in that basket and it's dug up i'm without internet for a week where with wireless it's an hour later and the latency on wireless is not that bad. i think my problem is at the breakout when i go international.
 
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