At 07:56 PM 6/3/02 -0400, you wrote: Uh..aren't those 32-bit cards? There isn't enough bus bandwidth on a 32bit PCI bus to do gigabit, so its more likely that the cards are overrunning their buffers.... Dennis >There are at least some gigabit ethernet hubs on the market. How badly >does it handle collisions? > Nick > >On 3 Jun 2002, Marcus Sundberg wrote: > > > Benjamin LaHaise <bcrl@redhat.com> writes: > > > > > What version of ns83820.c are you using? Version 0.17 of ns83820.c > > > made significant improvements under load. Other possibilities include > > > cabling problems (watch the kernel logs for changes in link state). > > > Try to find out where the packets are getting dropped by looking > > > through /proc/net/snmp and other statistics counters in the kernel. > > > > 0.17, but some more testing showed that the ns83820 actually works > > just fine during this test when using just crossover cables and > > running at gigabit speed. The original testing was done using > > 100Mbit hubs, so my guess would be that the 83820 chips (and/or > > driver) doesn't handle collisions too well (which I don't have a > > problem with, as afaik GE is always switched). > > > > However the DFE-580TX problems remain regardless of using a hubbed > > or switched network. > > > > (As booth eepro100 and tulip-based cards works fine with the hubs > > I'm quite certain there's nothing wrong with them.) > > > > //Marcud > > -- > > ---------------------------------------+-------------------------- > > Marcus Sundberg <marcus@ingate.com> | Firewalls with SIP & NAT > > Firewall Developer, Ingate Systems AB | http://www.ingate.com/ > > - > > : send the line "unsubscribe linux-kernel" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ > > > >- >: send the line "unsubscribe linux-net" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
