BETA3 showstoppers (read: critical bugs)

Bjoern A. Zeeb bzeeb-lists at
Tue Sep 7 09:20:12 PDT 2004

On Tue, 7 Sep 2004, Brandon S. Allbery KF8NH wrote:


just to comments on autoneg with various pieces I know...

> > On Tue, Sep 07, 2004 at 05:14:47PM +0200, Matthias Andree wrote:
> > M> Hum, is the duplex setting manual? I've only used the 3C900 Combo for
> > M> 10base2/BNC (Coax) so far. My DSL modem is hooked up to a "classic"
> > M> (=old) 3C905 via crossover CAT5.

if this is a dtag adsl/sdsl "modem" manufactured by siemens all my
experience and what I have read in various newsgroups is that they
are very picky on autoneg and (too) short ethernet cabling.
I never had trouble at home with my ne2000 isa card or an rl0 in my
notebook or fxp0; neither xover nor connected to a hub.
But I have seen problems with an elderly de0 at another place.

> We have occasionally seen what I am told by our network folks are odd
> autonegotiation issues with 3C905-TX cards connected to Cisco switches,

(At least 'smaller') Cisco switches are known to trouble when left
on autoneg.
I have seen this for years with too many providers and hosters... and
all kinds of NICs :(
The first thing I check once I get a port on such a switch is that there
is no duplex mismatch and mostly manually force both ends to be 100/full.

Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT

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