3c59x NIC overruns with multicast makes networking freeze

From: Arnaud Installe (arnaud@bach.tvd.kotnet.org)
Date: Fri Sep 22 2000 - 19:10:50 EST


Hi,

Has anyone else seen a lot of overruns while serving multicast on a pretty
loaded (60%) network, with 3c59x cards ? (BTW What exactly are
"overruns" ? Are they buffer overflows on the NIC side or buffer
overflows on the kernel side, because the software can't follow, or even
something completely different ?)
 We're seeing a lot of overruns on a server which has to handle a lot of
connections. Those connections are handled by a Java program using the
IBM Java JDK 1.1.8 on a Linux 2.2.16 kernel.
 After a while the network freezes. I can't ping nor ssh to the machine.
Restarting the network scripts solves the problem.
 Any suggestions ? Tnx,

                                                        Arnaud

-- 
Arnaud Installe                                             a.installe@ieee.org

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