I had a similar problem with 1.3 (and still have, to a lesser extent, with
1.3.2) when on a heavily-loaded ethernet.  The network would fail after a
log message such as "sn0: Receive descriptors exhausted."  I found that
running tcpdump for a few seconds temporarily fixes the problem.  Last I
heard, the ethernet trouble was due to an interrupt problem on Quadras;
maybe tcpdump's switching the interface to promiscuous mode and back
somehow clears the interrupts?

Have interrupt changes in -current fixed this problem?

Rob

>I have been having some troubles with a Q700 and 1.3.2 where occasionally
>all my TCP/IP networking will fail. I cannot ping in or out of the box.
>However, my syslog UDP packets make it out of the box to my logging
>machine. I am forced to reboot NetBSD. Is this a known problem? Any ideas
>on how to fix it?
>
>Thanks,
>
>
>Joe Laffey
>LAFFEY Computer Imaging
>St. Louis, MO
>http://www.laffeycomputer.com/
>------------------------------