Date: Sun, 10 Mar 1996 13:18:27 -0500 From: dennis@etinc.com (dennis) To: davidg@Root.COM Cc: mpatters@imssys.imssys.com, hackers@freebsd.org Subject: Re: slow network response Message-ID: <199603101818.NAA11254@etinc.com>
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>>>>Thanks Rodney, but go luck. Traceroute tell me the routes looks good, >>>>but the average numbers on loopback are still very high. I re-examined my >>>>routing tables and there doesn't seem to be anything that stands out. >>>>Even checked my cables. >>>> >>>>Anyknown problems with a 3Com-509B-combo on thinnet(BNC). I don't recall >>>>any myself. >>>> >>>>Again, any help folks is appreciated. Thanks! >>> >>> What do you have in /etc/hosts, and what does "localhost" resolve to? >>> >>>-DG >>> >>>David Greenman >>>Core-team/Principal Architect, The FreeBSD Project >>> >> >>I had a MB that just couldn't run a 3COM-509. I got huge delays, and putting >>the >>board in another box indicated that there was nothing wrong with the card. I >>never did figure out what it was (since i don't normally use them), although it >>was a PCI '486 and I suspect it had something to do with the implementation >>of the ISA bridge..... >> >>Plugged in an NE2000 and it worked fine. > > Hmmm...I think the problem is that the interrupt either isn't configured >properly or the interrupt doesn't work for some reason. The 3c509 driver has >a kludge in it that allows it to recover from lost interrupts at a rate of >once per second. If the interrupt didn't work at all for some reason, then >the card would process a small burst of packets every second - and would be >very slow indeed. ahh....Well there is that PCI thing that. you have to tell the MB which irqs to allocate to ISA devices.......that 1 per second thing would've led me to assume that the interrupt was working. Id check it to be sure... Dennis ---------------------------------------------------------------------------- Emerging Technologies, Inc. http://www.etinc.com Synchronous PC Cards and Routers For Discriminating Tastes. 56k to T1 and beyond. Frame Relay, PPP, HDLC, and X.25 for BSD/OS, FreeBSD and LINUX.
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