Re: Speed and Duplex

From: M Lab (mlabccie@gmail.com)
Date: Sun Mar 15 2009 - 17:28:45 ART


I think for the most part the R&S grading is scripted, so if it is not in a
specific question, the grading script may not care. If this rumour is
correct, the only time a human atually lays eyes on your config is if you
have failed and it's close. ( maybe someone can clear this up )

I think I would go with Larry's suggestion. Very politely and with a very
open mind ask the proctor if they felt that this would violate any of the
restrictions set forth in the lab. That is of course if there is no question
that has specifically eluded to changing or not changing the speed/duplex
settings. The proctors ( for the most part ) are much more reasonable and
helpful than rumours would indicate.

On Sun, Mar 15, 2009 at 2:04 PM, Larry Hadrava <lhadrava@ipexpert.com>wrote:

> I don't think that you would loose points unless the scenario would
> explicitly not allow you to set the speed & duplex.
>
> With that said - if you would go to the proctor and say that you normally
> set the speed and duplex settings to avoid issues with auto negotiation and
> make note that the scenario does not explicitly allow or deny the use of
> if,
> then you should get an answer.
>
> It's all about how you phrase the question as to what kind of answer you
> will get.
>
> Larry Hadrava
> CCIE #12203 CCNP CCNA
> Sr. Support Engineer IPexpert, Inc.
> URL: http://www.IPexpert.com <http://www.ipexpert.com/>
>
>
> On Sun, Mar 15, 2009 at 3:26 PM, Khurram Noor <
> engr.khurramnoor@googlemail.com> wrote:
>
> > so what you mean to say is that in the lab i cannot hardcode duplex and
> > speed or either router or switch because this will cause loss of points?
> >
> >
> > On Sun, Mar 15, 2009 at 10:16 PM, Huan Pham <pnhuan@yahoo.com> wrote:
> >
> > >
> > > Are you asking in the lab context?
> > >
> > > Then leave it as auto, unless the question leads you toward having to
> fix
> > > speed & duplex.
> > >
> > > Even if auto ends up with a mismatch, you should be fine except some
> > > annoying error messages which should not cause you any point loss!
> > >
> > > Best practice is a different story. You should always hard-code speed &
> > > duplex in practice as auto only work 99% of the time. You dont want to
> > try
> > > your luck in production to end up in the 1% worst cases if you are
> > unlucky!
> > >
> > >
> > >
> > > Huan
> > >
> > > iTouched from iPhone ;)
> > >
> > > On 15/03/2009, at 8:43 PM, Khurram Noor <
> engr.khurramnoor@googlemail.com
> > >
> > > wrote:
> > >
> > > Dear all,
> > > can you tell me where to leave duplex and speed settings to auto and
> > where
> > > to statically set them. i get confused with it sometimes. In my
> > > understanding if the router and switch interfaces are same like both
> are
> > > fast ethernet we can leave it to auto on both end. and if there is a
> > > mismatch i.e. like router has an ethernet interface which is connected
> > > switch fastethernet, then we need to statically set speed and duplex.
> > >
> > > Am i wrong?
> > >
> > >
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