SUMMARY: ETHERNET SLOW

From: Everett Schell (schell@molbio.cbs.umn.edu)
Date: Sat Aug 07 1993 - 02:42:18 CDT


     INCOMING ETHERNET SLOWDOWN, ORIGINAL PROBLEM:
| About two weeks ago our main server developed network/interface problems:
| Tape Dumps from other machines started taking about 3 times as long. File
| transfers from other machines into this server slowed down to minutes instead
| of the former few seconds per transfer. Plus the files now end up with
| unannounced corruptions. These problems only occur on INCOMING data.
| Ftp or rcp outgoing from the server to other Suns go quickly as normal.
| Perfmeter windows mounted from the server on a SS2 tend to die several
| times a day.
| Possibility: The bootpd software was installed about that time in connection
| with a new network printer. We tried commenting out the bootpd stuff in
| /etc/bootptab, services, and inetd.conf.
|
| System: 4-processor 630MP(upgraded from a 4/330)
| 64Megs SunOs 4.1.2
| ALM-2 in the extra slot.
    
  The problem was solved with a new motherboard on the Sun.
  We assume the incoming circuitry was partially damaged, but the old
  motherboard is still at the shop.

   Thanks for the suggestions.
    Jeff Kays jkays@msc.edu
    Mike miker@il.us.swissbank.com

   Everett Schell, schell@molbio.cbs.umn.edu
   SysAdm+, MBCC, Bio Sciences -- U of Minnesota
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