Hi Tom,
Thank you for providing this free test server.
Also tested for less than a minute on an asymmetrical 1G/50M link from Berlin, Germany.
Tx/Rx: 53.0 Mbps/955.7 Mbps
Kind regards,
SecOps7
Are you having any strange issues/problems with your "
asymmetrical 1G/50M link from Berlin " ?
If my math is correct , you have an upload speed that is 5 percent of your download speed.
( Would anybody correct me if I am wrong here please )
On typical/average network devices that are receiving/downloading a TCP data stream will often have a 3 to 10 percent upload ( ACKs ) data stream.
The TCP protocol is bi-directional traffic where the receiving computer is required to send ACK packets (
I received your last packet - now send me the next packet ).
In your case , with a "
asymmetrical 1G/50M link from Berlin " , I can see the following environment breaking your network with strange errors and data loss.
Lets say you have 2 computers on your "
asymmetrical 1G/50M link from Berlin " Internet connection and they are doing the following:
Computer # 1 is sending an email attachment ( sending a file ) and/or sending video in a video conference where this computer is sending at 25 meg.
-- at this point you you only have 25-Meg free to upload because you are currently sending 25-Meg ( 50 - 25 = 25 )
Computer # 2 is receiving a data stream of 750 meg. This computer might need to send TCP ACK packets at a rate of greater than 25 meg.
** At this point , your network wants to send ( bursts rates ) at greater than 50-Meg. Because you are capped at sending at less than 50-Meg, both computers may now be having problems because of packet drops/loss on sent TCP/UDP traffic ( including sending TCP ACK packets ). Sooo , your network starts to break and things start running slower than expected/needed.
IMO and with my 20+ years of network experience , I have learned to never limit customer upload traffic to less than 10-percent of their purchased download account speed. I have found that when using less than 10-percent , I begin to have some customer complaints of network problems. So these days , I use a standard ratio of 20-Percent.
In your case , if you were my customer with a 1-Gig download rate , I would limit you to a 200-Meg upload rate ( not 50-Meg ). This with a 20-Percent up/down ratio, I would lever have any complaints about things not working to/from your Internet connection to me.
If I were you , I would check to see if it is possible to increase your 50-Meg upload rate to at least 100-Meg ( or better 200-Meg upload rate ).
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Please , anybody - if you have an opinion and/or experience with upload/download bandwidth ratios that is not as I am saying , please give us your thoughts and suggestions.
North Idaho Tom Jones