f1_fan

iTrader: (9)

I am wth Virgin Media cable broadband - up to 60Mb package.

I have some large backup files on a server in the US that I am ditching so I want to copy them down to my local server in the UK.

The first one I copied (750MB) came down no problem .. dwnload speed around 40Mb. The second one started OK and then slowed to a crawl before terminating early an leaving the file corrupt.

I thought this wold be the traffic shaping algorithm with VM so left it until the next day and tried again..... no joy... gettng less than 1Mb download.

So left it a few days and tried again, same thing. Same thing again today!

I have tried Speedtest and any UK server I get around 50Mb whereas anu US server I get 2Mb at best.

Any ideas? Do VM traffic shape based on geography? Filetype? Am I just unlucky that the net to the US is always slow when I try. The thing that confuses me is how quick that first file was!

Ant

Definitely not something you're doing as i've just a comparison test , over wi-fi and on a 120mb connection quite shocking reallythe results are.

f1_fan

iTrader: (9)

Cheers

Try San Francisco for me if you get a sec, I am getting 2Mb max from there

ScoobyWon't

Are the States suffering from heavy traffic due to people staying in, or infrastructure damage, due to the recent snow storms?

Ant

no problem, seems like something is up then as this is mine

f1_fan

iTrader: (9)

Yeah, yours is slower than in the UK, but mine is like a lethargic snail!

I will call them tomorrow and ask what gives.

Thanks for your help

pimmo2000

iTrader: (6)

No they don't, try running some trace routes at the time of the slow down, see if there is a spike or even loss along the route.

If it's VM's side, tell them and ask them to sort it, if its one of their peering partners, I'd ask them (they should contact them for you) and contact them myself with the trace.

Traffic management will never end a connection, or cause corrupt files.

f1_fan

iTrader: (9)

Yeah fair enough, I am just a bit stumped as to what is going on. I have a pretty good grasp of how networking and the Internet protocols work and this has me bafled.

I have now narrowed it down to US West coast only as if I run speedtest on the east coast or central regions I am getting 25-30Mb.

Traceroute shows the ping time shoot up when the packets arrive at the West coast routers yet my business partner on VM in Stockport (30 miles away) is still getting good performance to the West coast.

We are going to compare traceroutes later and see where his differs ... if indeed it does.

Weird!

wrx5343

Can you not just run a speed test from your backup server in the US ?

riiidaa

iTrader: (2)

find an east coast proxy?

use DeltaCopy / rsync

JackClark

It's the NSA, you're going down.

pimmo2000

iTrader: (6)