On Thu, 2005-12-22 at 14:54 +0100, Eric Doutreleau wrote: > Bob Chiodini wrote: > > >On Thu, 2005-12-22 at 12:11 +0100, Eric Doutreleau wrote: > > > > > >>Tim wrote: > >> > >> > >> > >>>On Wed, 2005-12-21 at 16:11 +0100, Eric Doutreleau wrote: > >>> > >>> > >>> > >>> > >>>>i have a lab with fedora core 4 machine with a network card > >>>>01:08.0 Ethernet controller: Intel Corporation 82562EZ 10/100 Ethernet > >>>>Controller (rev 02) > >>>> > >>>>and from time to time the network seems not working anymore. > >>>> > >>>>after a few second the network goes up again. > >>>> > >>>>The result is that i lose about 30% of packet. > >>>> > >>>>when i boot windows on the same machine i have the same problem. > >>>> > >>>> > >>>> > >>>> > >>>That does seem to suggest a hardware fault (a bad NIC, or the > >>>combination of your motherboard and NIC). Can you try a different one? > >>> > >>> > >>> > >>> > >>> > >>well i made a mistake with my sentence > >>i have no problem under windows > >>and i have 12 same computer and all have the problems with FC4 > >> > >>nevertheless thanks for your answer > >> > >> > >> > > > >Eric, > > > >What does ethtool eth0 tell you about the interface? Are you getting > >any errors in /var/log/messages concerning eth0? > > > >This sounds like an autonegotiation (duplex) problem. > > > >Bob... > > > > > > > here is the result > Settings for eth0: > Supported ports: [ TP MII ] > Supported link modes: 10baseT/Half 10baseT/Full > 100baseT/Half 100baseT/Full > Supports auto-negotiation: Yes > Advertised link modes: 10baseT/Half 10baseT/Full > 100baseT/Half 100baseT/Full > Advertised auto-negotiation: Yes > Speed: 100Mb/s > Duplex: Full > Port: MII > PHYAD: 1 > Transceiver: internal > Auto-negotiation: on > Supports Wake-on: g > Wake-on: g > Current message level: 0x00000007 (7) > Link detected: yes > > the only thing i got from messages concerning eth0 is theses messages > > Dec 22 12:17:04 b02-07 kernel: e100: eth0: e100_probe: addr 0xfc000000, > irq 11, MAC addr 00:0C:76:E5:E8:C8 > Dec 22 12:17:08 b02-07 kernel: e100: eth0: e100_watchdog: link up, > 100Mbps, full-duplex > Dec 22 12:17:15 b02-07 ntpd[2459]: Listening on interface eth0, > 157.159.15.231#123 > > Eric, Presumably those messages are from a boot up? Do you get the same ping failures pinging something attached to the same switch? What does cat /proc/sys/net/ipv4/tcp_ecn return? If it's not zero, set it to zero echo 0 > /proc/sys/net/ipv4/tcp_ecn. I have no trouble pinging you at 157.159.15.226, 227, 228, 232, and 234. Zero packet loss. The others do not respond at all. Do you get the same results using ping instead of fping? Bob... Bob... Bob...
