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Tarps99
New Orleans Saints Fan
Lafourche Parish
Member since Apr 2017
529 posts

Dedicated or NonDedicated/Shared Internet Access
I have an FTP site that I need to send decent sized files over port 21 and not passive FTP.

I feel that I am getting throttled somewhere between my office and the site using a shared internet provider service.

I contemplating subscribing to a dedicated connection.

So Tech board, would a dedicated service with an SLA improve those FTP speeds?

Right now, I am getting less than 200 kbps uploads per upload and sometimes even timeouts, but that is just on FTP. I can upload to YouTube or Facebook at the advertised speed.

I have tried 35 Mbps and even 100 Mbps of upload speed and neither could get higher than 200 kbps on upload threads. Sometimes, it even slowed to a crawl at dial up speeds.
This post was edited on 3/4 at 8:34 pm


td1
Member since Oct 2015
310 posts

re: Dedicated or NonDedicated/Shared Internet Access
What is the ftp server running on? Is it hosted? Is it on a shared hosting plan/server? Is it a busy FTP site? What are the up and down speeds on the FTP servers connection? What are you running as a router/firewall on your end and or their end?

If it’s hosted and on shared hosting you are sharing that with however many other sites are on that server / connection. You can increase your speed as much as you want but you will Not gain much by being faster than the servers internet speed. Do you or the servers IT run a next gen type firewall that runs scans on files / traffic as it passes. I’m betting you are fighting a bandwidth problem at the receiving FTP server.

We do some bandwidth steering on our incoming connections. X % to ftp, X % to http/https, X % to smtp, etc. Keeps it somewhat fair in heavy traffic times for everyone using our services. Also keeps (no offense) someone uploading massive files via FTP from killing the service quality for our other services / users. Our equipment is however smart enough to vary that % allocation as traffic ramps up or down but maintain the minimum set % allocations between the services.

Try it very early in the morning or very late at night. If it improves it is more than likely on the servers end or your isp throttling certain traffic at peak times. It really sounds like the receiving end though.



This post was edited on 3/12 at 9:53 pm


Tarps99
New Orleans Saints Fan
Lafourche Parish
Member since Apr 2017
529 posts

re: Dedicated or NonDedicated/Shared Internet Access
quote:

What is the ftp server running on? Is it hosted? Is it on a shared hosting plan/server? Is it a busy FTP site? What are the up and down speeds on the FTP servers connection? What are you running as a router/firewall on your end and or their end?


The FTP server is running in an Akamai CDN data center environment. I believe it is shared within their other clients that are maintaining services with our host.

As far as the upload speeds they are averaging 1.2 Mbps and 1.6 Mbps.

I had to check the logs and do some data calculations this week and discovered that they were reporting data as KBps instead of Kbps which made the uploads speeds seem extremely slow until I peeled back the logs where it was showing how long it would take to upload a file. That was where I recalculated and realized that the simple conversion was initially incorrect.

What I also found suspicious is that multiple connections at the same time were averaging the same average rate.

The files are not huge, they are on average from 10 to 100 MB. I should be able to look more at this issue in the near future.

My other thought is that I could be a peering issue. Facebook and YouTube can upload at very fast speeds if not max out the upload capacity; those upload using different ports and a browser. I don’t know under the hood which file management system they are using to automatically upload the files.

Thanks for noticing the post.

I will keep you posted.


Tarps99
New Orleans Saints Fan
Lafourche Parish
Member since Apr 2017
529 posts

re: Dedicated or NonDedicated/Shared Internet Access
Just to update...I did one other test where I isolated the cable internet and the FTP appliances and got the same result in case something was hogging bandwidth on the network.

So it appears that either Comcast has a throttle on FTP traffic or there is a trottle at the FTP site.


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lsufanintexas
LSU Fan
Member since Sep 2006
4682 posts

re: Dedicated or NonDedicated/Shared Internet Access
Not to be that guy but are you seriously running an ftp server? One of the easiest things to crack??



Tarps99
New Orleans Saints Fan
Lafourche Parish
Member since Apr 2017
529 posts

re: Dedicated or NonDedicated/Shared Internet Access
It is was not my choice. It was the host’s decision and work flow.

If it was my decision, it wouldn’t be FTP, and I wouldn’t be be having this speed issue.


Tarps99
New Orleans Saints Fan
Lafourche Parish
Member since Apr 2017
529 posts

re: Dedicated or NonDedicated/Shared Internet Access
Just to update you guys, it seemed that port 21 was getting throttled somewhere in the chain.

Host switched us to Amazon S3 instead of Akamai and we are now uploading at 10 to 20 times faster.


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