> > Hi, > > I've build a new P4 box (1.8Ghz, 512MB mem) based upon a ASUS P4B533VM > motherboard. This board has an Intel 845G chipset and onboard 10/100 > mbit/s LAN (fxp driver). > > When connected directly to a gateway (in my case an Extreme BD10k) I > observe the following behaviour: a ping to the gateway starts around > 1ms and slowly increases in steps of .1 or .2ms to around 10ms. Then > it suddenly drops back to 1ms and the process starts all over again. > > I've tried a different NIC (3com, xl driver), new cabling, new > switchport and all gives me the same result. My other labbox (a AMD > 2000 XP+ with 3com PCI nic) connected to the same router is showing > normal latency. This gives me the feeling it's some sort of timing > issue on the P4's motherboard itself. > > Has anyone seen this before? I've searched the archives and found > little on this topic. Any tips/hints where I can seach for further > clues? > > Thanks, > > Arjan >
I haven't used the fxp driver in a while but you can check out the man page for the driver (man 4 fxp) and it mentions that you can disable autoselect for media type and speed. I remember reading in an article (I can't locate the URL) that the autonegotiation between the NIC and switch/router can be a bottleneck. That would be the easiset thing to check/eliminate. Hope that helps. -- Dan Gonzalez [EMAIL PROTECTED] IM: signulth _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"