[rescue] FDDI vs switched 100BaseTX, vs SPARC LX

Loomis, Rip rescue at sunhelp.org
Thu Jun 21 09:06:12 CDT 2001

Hmm...well, yes, I can force one port on that
switch into 10/half mode (which is what I've
done on one of our switches here at work to
support older Sun boxen that demonstrate this
problem), but I wanted to find a *real* fix.
If I ever swap where a system is, I don't
want to have to remember which port on the
switch is dain bramaged.

After cruising around the web, I think I'll
try some ndd incantations based on info in
and see if that helps.  The wacky thing is that
I know the LX is coming up and getting carrier--
if I go watch the blinkenlights on the switch
while the LX is booting, I see the link light
come on at about the right time (ifconfig le0 plumb)
but then go out again within 5 seconds.  If
I configure it by hand, then perhaps it will
work...or maybe I'll just deal with a hub.


Rip Loomis
Senior Systems Security Engineer, SAIC CIST
Brainbench MVP for Internet Security
http://www.brainbench.com  [Transcript 1923411]

> -----Original Message-----
> From: Brian Hechinger [mailto:wonko at arkham.ws]
> On Wed, Jun 20, 2001 at 10:36:08PM -0400, Loomis, Rip wrote:
> > This is actually two separate questions.  First
> > the ObSun:
> > Any magical incantation that I can use to get the
> > le0 interface on my LX at home (running Solaris 7)
> > to work correctly when connecting to a 100BaseTX
> > switch (which wants to negotiate 100Mbps full
> > duplex?)  Cabling all works, and box gets
> > connectivity if I plug it into 10Mbps hub and then
> > run a crossover from that to the switch...
> can you get your switch to do 10/half?  if not the hub 
> solution is your only
> bet.  although if the hub works i don't see why the LX doesn't.
> LANCE ethernet (like in your LX) is 10/half only.

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