On Fri, 14 Sep 2007 21:59:02 -0400 Andrey Falko <[EMAIL PROTECTED]> wrote:
> Hi everyone, > > I am having some very strange, likely Debian-related networking > problems. I was trying to set up some bandwidth tests between a few > nearly identical machines. I label them s0, s1, s2. All are Debian > boxes. When I transfer a large file from one box to another, the > transfer starts out at around 50 megabytes per second, but quickly > drops to below 10. I was battling with this issue for quite some > time and decided to do an experiment. > > I had to Gentoo livecds lying around, so I booted s1 and s2 into Gentoo. > Doing transfers between s1 and s2 were perfect; they remained over 50 > throughout the entire transfer. Transferring to s0 from s1 or s2 > however, the speed would start at around 50 and drop to below 10 for the > remainder of the transfer. Transferring from s0 to either s1 or s2, the > transfer was perfect. > > So in sum: Debian boxes can't sustain download speeds, but can sustain > upload speeds. > > I am far from a Debian expert, so I don't know where to start looking to > understand what the problem is. I don't know what info is needed. > > I have Intel e1000 and Nvidia nforce NIC in each machine. I've tried all > combinations of Intel to Nvidia NICs. I am running kernel-2.6.20.18. > > Best regards, > Andrey Falko I'm no networking expert either, but perhaps you should try a dedicated network benchmark tool, such as iperf. Celejar -- mailmin.sourceforge.net - remote access via secure (OpenPGP) email ssuds.sourceforge.net - A Simple Sudoku Solver and Generator -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
