On Sat, 14 Apr 2007 23:02:17 +0100 Alan Chandler <[EMAIL PROTECTED]> wrote:
> I have spent all day looking for clues as to how to debug network > performance issues without success. Nobody seems to answered my > previous post on this subject - so I thought I would try again. > > The problem I have is this. I have a linux desktop (machine D) siting > on a LAN in my home. This is connected to a linux firewall/nat router > (machine S) with two ethernet cards. One links out to the internet, > the other connects to the internal lan. Connections to the internet > from machine D go through machine S, which acts as a NAT translation. I > do all the control and firewalling using IPTABLES in machine S. > > Downloading a video from youtube onto Machine D's desktop I get a > download speed of about 7Kbytes/sec. Which is very low. If I try to > download the same one by ssh'ing into mahcine S and running wget on the > same url, I get a download speed of 80Kbytes/sec (ie more than 10 times > faster). > > This would normally imply a bottle neck in the network between machines > D and S. But if I download a similar file from machine S to machine D, > then I get a throughput of about 11Mbytes/sec. > > I have do idea about how to debug this and find out what the problem is. > Can someone here give me some clues as to what to do. > -- > Alan Chandler > http://www.chandlerfamily.org.uk Does the problem occur when downloading from other sites, and things other than video? Celejar -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
