FTTH - International bandwidth

[Dr Who]

Hi All

We have had fibre in our business for a number of years via a number of providers, one thing which is common is that International speeds are much slower than local speeds. This is not the case currently with ADSL, as I have never had FTTH is this issue also present in residential installations?

Regards

 

[DERoestorf]

Hi All

We have had fibre in our business for a number of years via a number of providers, one thing which is common is that International speeds are much slower than local speeds. This is not the case currently with ADSL, as I have never had FTTH is this issue also present in residential installations?

Regards

Yes, it has got to do with the limitations on Seacom etc

 

[Dr Who]

On our worst provider we have a 10/1 ratio and hence get between 1 and 2mb of international traffic on a 10mb line. Its not an issue as this line is mainly used for local content. What are the ratio's for most FTTH options?

 

[DERoestorf]

On our worst provider we have a 10/1 ratio and hence get between 1 and 2mb of international traffic on a 10mb line. Its not an issue as this line is mainly used for local content. What are the ratio's for most FTTH options?

You will have to ask the ISP's, as it depends on them

 

[DJ...]

Hi All

We have had fibre in our business for a number of years via a number of providers, one thing which is common is that International speeds are much slower than local speeds. This is not the case currently with ADSL, as I have never had FTTH is this issue also present in residential installations?

Regards

This will explain why you experience this in all likelihood, and also explans TCP Window Scaling and buffering nicely, with charts showing why you experience it more the faster your connection gets, hence why on DSL you didn't feel it much, but the faster the DSL the more the problem becomes prevalent...

https://www.duckware.com/blog/how-windows-is-killing-internet-download-speeds/index.html

 

[DJ...]

Yes, it has got to do with the limitations on Seacom etc

No, it doesn't. It has to do with ordinary networking limitations and the correlation between latency and speeds due to TCP Window sizes...

 

[paul5186]

Speedtests should not really be used when testing high speeds internationally. I use a multi threaded iperf test for this to my vps overseas.

That being said on certain speedtest servers I can get well over a couple hundred mbs, but it's not consistent between all servers even if the networks peer at the same location.

 

[koeksGHT]

Yes, it has got to do with the limitations on Seacom etc

Apart from not purchasing enough international once the traffic leaves the SEACOM network overseas speeds are not guaranteed by other networks.

 

[ebis]

This will explain why you experience this in all likelihood, and also explans TCP Window Scaling and buffering nicely, with charts showing why you experience it more the faster your connection gets, hence why on DSL you didn't feel it much, but the faster the DSL the more the problem becomes prevalent...

https://www.duckware.com/blog/how-windows-is-killing-internet-download-speeds/index.html

Thanks for that link, very insightful topic!

 

[eddief1]

Thanks for that link, very insightful topic!

Yip, not many people know about TCP window scaling