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 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
