Just to reiterate... I personally know a couple of candidates who had issues with their ISDN switch in the lab to not work no matter what. As a matter of fact, in Solie's book on page 459 he brings up this "well-known transitive" problem. So lab candidates, pay attention to this page as it just might save you $1250 plus some grief. Perhaps someone can suggest to the lab folks to swap Adtran for Teltone or Emutel ;-> My 2 cents... Elmer
----- Original Message ----- From: "Chuck" To: Sent: Tuesday, June 25, 2002 12:30 PM Subject: Re: Benchmark CCIE [7:47320] > The folks who brought you the "Caslow" book and the old ECP1 class taught > that you should do all your L2 first, then make a second pass to do your > L3. their reasoning was that it became easier to troubleshoot if you did > things one layer at a time. Otherwise, if you put it all in, and there was a > problem, you had too many variables to consider. > > OTOH, these same folks are very big on checklists. Knowing, memorizing, > ordered lists of things to do in each and every situation. > > Putting ISDN aside for a moment, given that the current Lab structure > "assures" that your L1 is good, and that your L3 is pretty much ( not 100% ) > ready to go, that leaves you a bit more freedom in how you approach things. > > Everyone who has studied ISDN knows that it can be problematic, even in the > best of circumstances. The CCIE Lab is definitely NOT the best of > circumstances! My opinion, based on practice and on conversation, is that > you have to have confidence that you can configure it correctly from > scratch, and be confident that even if it does not appear to be working, > that you have done things correctly. > > this is where the checklist approach comes in, and where you need to develop > a consistent approach each and every time you do ISDN ( or anything else > for that matter ) > > if you are told, for example, to use PAP authentication, and to use the > router name as the authentication name, will that throw you off if you have > studied in a particular manner? OTOH, if your checklist goes something like: > > ISDN: Calling party > > I) physical interface steps > a) setup > b) authentication > 1) pap > 2) chap > > II ) logical interface steps > a) setup > b) authentication > 1) PAP > 2) CHAP > > ISDN: Called party > > I) physical interface steps > a) setup > b) authentication > 1) pap > 2) chap > > II ) logical interface steps > a) setup > b) authentication > 1) PAP > 2) CHAP > > > that gives you a framework from which you can quickly and easily configure > ISDN under any given set of circumstances. > Obviously, this checklist is by no means complete. but I think you get the > idea. Don't lose yourself in memorizing configurations, don't get distracted > by infinite variations, do learn the specific details based on a consistent > approach. > > this, BTW, is where "speed" comes into play. Speed is not how fast you can > type. It is how fast you can turn the written requirement into a working > configuration. If you have to spend too much time thinking about the > requirement, you will find yourself out of time, no matter how fast you > type. > > JMHO from someone who's been there and will be there again. > > > ""Pierre-Alex Guanel"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Thank you for the Tips Bernard. I will change my "bad" habits :) > > > > Just curious... When you configure your routers do you enter all the > > commands in global config mode, then interface mode, then router mode > > ? Or do you configure the routers according to the sequence in which the > > router operates (for example: Layer 1, Layer 2, Layer 3)? > > > > I have found that when I configure my routers the second way, I feel much > > more in control of what is going on (because the config is logical). The > > down side is that I take much more time because I am some how thinking > about > > the process while I am doing it. > > > > On the other hand, when I configure from memory (i.e. all commands in > global > > mode, then interface mode ...) there is no "internal dialog" but things > are > > going much faster and I can keep within the timeline. > > > > I would like to know how the folks who took the CCIE and those who are > close > > to taking it configure routers under time presure: memorization of configs > > or sequence in which the router operates > > > > Thanks, > > > > Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47404&t=47320 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
