[tulip] Re: Kingston

Homer Wilson Smith homer@lightlink.com
Tue, 23 May 2000 00:44:59 -0400 (EDT)


   Thanks, this is not a problem in autonegotiation, in 10baseT
mode, the switch can be forced into Full Dup mode.  It works
flawlessly with the 21140 options=16, but the 21143 doesn't
work at all.

   Its a real problem.

------------------------------------------------------------------------
Homer Wilson Smith   Clear Air, Clear Water,  Art Matrix - Lightlink
(607) 277-0959       A Green Earth and Peace. Internet Access, Ithaca NY
homer@lightlink.com  Is that too much to ask? http://www.lightlink.com

On Tue, 23 May 2000, Jason Thomas wrote:

> Is the switch a Catalyst 1900, if so, it only autonegotiates duplex
> operation on 100BaseTx ports.
> 
> http://www.cisco.com/univercd/cc/td/doc/product/lan/28201900/1928v9x/19icg9x/19icintr.htm
> 
> Homer Wilson Smith [homer@lightlink.com] wrote:
> > > 	What Kingston card?  I have had zero problems with the
> > > KNE100TX units.  The later ones (21143 based) require a .91 driver,
> > > but thats it.  I have > 100 used (20 somthing are 21143), and about 15
> > > of the 21143 units are talking to cisco switches.
> > 
> >     I am using KNE100TX with 21143 connected to cisco 1900,
> > 10baseT forced full dup.  The card won't auto negotiate, but
> > can be 'forced' into various Fd modes through the options=command.
> >  
> >     Most of the FD modes don't work at all, some do work, but statistics
> > on the Ciscos show lots of runt frames and very slow throughput, the usual
> > signs of the card being in half duplex and the Cisco being in full.
> > 
> >     This behavior is replicateable with the 21140 by actually
> > putting them in half duplex while the cisco is in full dup.
> > 
> >     The 21140's work properly providing 1000Kbyte/sec throughput
> > between two linux boxes in FD mode options=16.
> > 
> >     The Full dup green light never turns on in either card,
> > but we are very happy with the performance of the 21140's.
> > Alsa they are no longer avialable.  
> > 
> >     If I am doing something stupid here, I would dearly love
> > to know because we are very dedicated to the Kingston 2114x's
> > 
> >     Homer
> > > 
> > > ---
> > > As folks might have suspected, not much survives except roaches, 
> > > and they don't carry large enough packets fast enough...
> > >         --About the Internet and nuclear war.
> > > 
> > > 
> > 
> > 
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> 
> -- 
> Jason Thomas
> System Administrator  -  UID 0         Phone:   +61 2 6257 7111
> tSA Consulting Group Pty. Ltd.         Fax:     +61 2 6257 7311
> 1 Hall Street Lyneham ACT 2602         http://www.topic.com.au/
>