Re: eth0 is S-L-O-W--outgoing, that is
El Mar 18 Sep 2001 14:44, Tony Crawford escribió: How do I start diagnosing this? Incoming data from the LAN is as fast as it should be, but outgoing, whether Samba file transfer or POP3, looks like about 1/3 of one Mbit/s. In addition, there seem to be pauses of several seconds in larger transfers. Files or mail attachments that go over one MB often time out during these pauses. Debian 2.2, kernel 2.4.9 (A. Bunk's packages), acting as POP3 server, Samba print server, and NAT gateway. The card is a D-Link DFE-530TX; takes the via-rhine driver. the diagnostics program from Donald Becker's site shows it's linked to the switch at a steady 100BASE-Tx. Disk access, as far as hdparm -tT goes, seems normal for ATA-33. (This is an Asus SP97-V board w SiS chipset, P233MMX CPU.) During a long, slow file transfer, top doesn't show any excessive CPU use--no process over 0.3%. The iptables configuration is minimal: just the one NAT rule, and incoming filters when the PPP link is up. Other configuration info available of course. I'm clueless what to do. Try other NICs on speculation? Downgrade the kernel version? How can I figure out where the problem is? Some time ago I had a similar problem and the solution was moving the computer from it's position. There were some kind of electric interferences just behind the Ethernet card that killed ths signal. This is very unlikely, but... Luck! -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Mario J. Barchéin Molina. Granada (Spain) [EMAIL PROTECTED] || [EMAIL PROTECTED] http://www-etsi2.ugr.es/~mario Equipo Web de la ETSI Inf. de Granada (Spain) [EMAIL PROTECTED] http://www-etsi2.ugr.es -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
eth0 is S-L-O-W--outgoing, that is
How do I start diagnosing this? Incoming data from the LAN is as fast as it should be, but outgoing, whether Samba file transfer or POP3, looks like about 1/3 of one Mbit/s. In addition, there seem to be pauses of several seconds in larger transfers. Files or mail attachments that go over one MB often time out during these pauses. Debian 2.2, kernel 2.4.9 (A. Bunk's packages), acting as POP3 server, Samba print server, and NAT gateway. The card is a D-Link DFE-530TX; takes the via-rhine driver. the diagnostics program from Donald Becker's site shows it's linked to the switch at a steady 100BASE-Tx. Disk access, as far as hdparm -tT goes, seems normal for ATA-33. (This is an Asus SP97-V board w SiS chipset, P233MMX CPU.) During a long, slow file transfer, top doesn't show any excessive CPU use--no process over 0.3%. The iptables configuration is minimal: just the one NAT rule, and incoming filters when the PPP link is up. Other configuration info available of course. I'm clueless what to do. Try other NICs on speculation? Downgrade the kernel version? How can I figure out where the problem is? TIA, Tony -- -- Tony Crawford -- [EMAIL PROTECTED] -- +49-3341-30 99 99 --
Re: eth0 is S-L-O-W--outgoing, that is
Tony Crawford [EMAIL PROTECTED] writes: How do I start diagnosing this? See below. The card is a D-Link DFE-530TX; takes the via-rhine driver. the diagnostics program from Donald Becker's site shows it's linked to the switch at a steady 100BASE-Tx. Bad card. Change it. I faced the same problems with 2.2.x kernels. When I changed it to a 3Com Vortex (or Intel EtherExpress Pro), all went fine. My 2 cents. Nicolas.
