From: Thomas Larus (tlarus@cox.net)
Date: Sun Aug 29 2004 - 19:56:27 GMT-3
John and Richard:
Having the broadcast keyword at the end of all of your frame relay map
statements is "bad form," but it is not necessarily a bad thing, altogether.
Richard was one of the technical reviewers for my new book, along with Joe
Rothstein, and you can imagine how helpful it was for these two network
engineers to work through the scenarios with their keen eye for detail.
Both Richard and Joe noticed that I had used "broadcast" where it was not
needed, and since they both mentioned this, I improved my config files by
removing "broadcast" where it was not needed. Thus, I confess to being one
of those practice scenario writers who, left to his own devices, would put
"broadcast" on frame relay map statements where it is not needed, and would
also engage in many other acts of "overconfiguration." I firmly stand by
most of my overconfiguration, but I recongnize that this particular bit of
"overconfiguration" or "bad form" can make one look bad.
Still, there is something to to be said for this kind of overconfiguration.
If you do it this way, you do not have to worry about making a mistake and
leaving off the broadcast keyword where it is needed. What if you are
configuring your frame relay cloud in the Lab exam, and you try to be
careful about putting "broadcast" only where it is needed, but you are not
quite careful enough, for you leave it off the DLCI that really needed it?
It is very easy to make this sort of mistake, and it is a mistake that could
really cause practical problems.
It does not take much imagination to see how a mistake like this could cause
you to lose many points and much time.
All in all, it may actually be safer to overconfigure, and have something in
your configs that reeks of "bad form."
I am not a proctor, so I cannot be certain that there might not be a
downside to this sort of "bad form" or "overconfiguration." Perhaps some
picky proctor would look at this sort of overconfiguration and say, "this
candidate's use of the 'broadcast' keyword where it is not needed suggests
to me that the candidate may not fully understand what is going on here."
However, what I have read of Cisco's official word on the Lab exam suggests
that the Lab is graded largely on practical results. Sometimes I think that
real world "good form" and "best practices" are largely incompatible with
the world of CCIE lab preparation.
Best regards,
Tom Larus, CCIE #10,014
Author of the CCIE Warm-Up e-books from www.ipexpert.com, and also "Basic
Cisco Secuirty Exercises for Pix Firewall, IOS Firewall, and Access Control
Server," at http://www.lulu.com/content/59374
----- Original Message -----
From: "john matijevic" <matijevi@bellsouth.net>
To: "'Richard Dumoulin'" <Richard.Dumoulin@vanco.fr>;
<ccielab@groupstudy.com>
Sent: Sunday, August 29, 2004 1:26 PM
Subject: RE: RE : Cisco Press Routing and Switchling Lab book
> Hello Richard,
> I have configured with and without the broadcast keyword as you have
> mentioned. I really have not noticed a difference. One could argue that
> it uses unnecessary bandwidth in the real world. However, there are
> many lab vendor books that due use the broadcast keyword. The point
> being is that this book has so many valuable tools and lessons learned.
> I think by going through the labs and going through the entire book, you
> will find that it is of the highest quality. There are other minor
> errors with the book, I was just making overall assessment when I posted
> this email. Again, I really love this book. I think it is the best
> resource available, and if you need rack time I am offering my rack and
> forum area for support.
>
> Sincerely,
>
> John Matijevic, CCIE #13254, MCSE, CNE, CCEA
> CEO
> IgorTek Inc.
> 151 Crandon Blvd. #402
> Key Biscayne, FL 33149
> Hablo Espanol
> 305-321-6232
> http://home.bellsouth.net/p/PWP-CCIE
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Richard Dumoulin
> Sent: Sunday, August 29, 2004 5:52 AM
> To: john matijevic; ccielab@groupstudy.com
> Subject: RE : Cisco Press Routing and Switchling Lab book
>
> One thing I have noticed is that the author configure "broadcast" in the
> frame-relay map's between spokes in a frame-relay hub and spoke
> scenario.
> I am not sure this is good practice and we all know that broadcasts are
> not
> forwarded by the hub and it therefore does not make sense,
>
> --Richard
>
>
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