*BSD News Article 97625


Return to BSD News archive

Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!spool.mu.edu!uwm.edu!vixen.cso.uiuc.edu!howland.erols.net!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!news.apfel.de!news.rediris.es!lgdx06.lg.ehu.es!not-for-mail
From: "Jose M. Alcaide" <jose@we.lc.ehu.es>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: 3C590: no collisions?
Date: Thu, 12 Jun 1997 18:46:42 +0200
Organization: Universidad del Pais Vasco - Dpto. de Electricidad y Electronica
Lines: 15
Message-ID: <33A027F2.41C67EA6@we.lc.ehu.es>
NNTP-Posting-Host: tiburon.we.lc.ehu.es
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Mailer: Mozilla 3.01 (X11; I; FreeBSD 2.2.1-RELEASE i386)
Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:42827

Curiously, "netstat -i" _always_ shows 0 collisions on the vx0
ethernet interface (3COM 590, FreeBSD 2.2.1). However, other hosts
attached to the same (saturated) segment have about 5% collision rate.
I suspect that the vx driver does not increment the collision
counter. A colleague has another FreeBSD box with a 3C900 (also
vx driver), and it also shows 0 collisions. Isn't surprising?

--JM 
------------------------------------------------------------------------
Jose M. Alcaide                         | E-mail: <jose@we.lc.ehu.es>
Universidad del Pais Vasco              | WWW:
Dpto. de Electricidad y Electronica     |  http://www.we.lc.ehu.es/~jose
Facultad de Ciencias - Campus de Lejona | Phone:  +34-4-4647700 x2624
48940 Lejona (Vizcaya) - SPAIN          | Fax:    +34-4-4858139
------------------------------------------------------------------------