[tulip] LNE100TX rev. 5.0

Donald Becker becker@scyld.com
Fri Dec 14 17:59:00 2001


On Fri, 14 Dec 2001, Jacob Schroeder wrote:

> Donald Becker <becker@scyld.com> wrote:
> > On Fri, 14 Dec 2001, Jacob Schroeder wrote:
> > > The hub is a repeater (a somewhat old 10Mbps Linksys with 8 RJ-45
> > > ports and 1 BNC). ifconfig for this NIC currently shows 382,699 RX
> > > packets, 993,522 TX packets and 232,851 collisions with 0 receive or
> > > transmit errors.
> > 
> > These might be reasonable numbers for a busy network on a 10Mbps
> > repeater.  Just check /proc/net/dev (not 'ifconfig' or 'netstat -i') to
> > verify that you don't have errors.
> /proc/net/dev reports no errors for eth0. 

> With 5 computers hooked up to the network but none talking, I can get
> a little over 150 collisions just doing 10 pings to another Linux
> machine. So that's why I was a little concerned, but from what I'm
> hearing I guess that's not too abnormal.

That is abnormal.  The maximum non-error collision count is 15
collisions per packet.  It's very unlikely that a packet will get to 15
collisions, so if you are actually seeing 150 with 10 packets, something
is wrong with the counts.

> I'm not sure I'll be able to upgrade to the 0.93 driver for a while, I
> don't want to bother this list with my trivial problems of not being
> able to successfully compile them. I've done the kernel on numerous
> occasions, and read all the documentation for tulip, but I'm still not
> successful.

Use the suggestions in
  http://www.scyld.com/network/updates.html

I think that most possible problems have been addressed in the archives,
but there are many possible ways for a distribution to mess around with
the header files and paths.

Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Second Generation Beowulf Clusters
Annapolis MD 21403			410-990-9993