What This Book Does Not Cover

By Author: liuhan
Total Articles: 8
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With the scenario described above, the poorly prepared engineer would
not have even spotted the issue. If an internetworking engineer did not know
how the rules of subnetting applied to RIP and OSPF and how these rules can
create a potential conflict when redistribution occurs between these two protocols,
he or she would be completely lost in a scenario with the facts
described above. To the well prepared, the issue sticks out like a sore thumb.
Good CCIE certification preparation involves working through scenarios that
are loaded with such hidden issues. The well-prepared CCIE candidate will
proactively search for such issues when any configuration scenario is presented.
Ideally, the scenarios the CCIE candidate is working on are real-world
scenarios encountered on the job.
Issue spotting scenarios are good preparation for real-world activities. In
many instances, an internetwork engineer will receive a customer trouble
ticket that states a general problem with no specific information regarding
why the problem developed. For example, you may ...
... receive the following
trouble ticket: Customer cannot access mail server. You must attack the
problem in a systematic, incremental, and sequential manner. As you apply
your test and evaluation methods, you will spend a lot of time and effort
determining what is not the problem. Eventually, you will come upon a specific
issue (or issues) that is the source of the problem. It is at this point that
you have spotted the issue. If you are an experienced internetworking engineer,
you have been using issue spotting techniques for a long time. The
scenarios in this book will force you to articulate issue spotting skills and
become intimately aware of them.
To help develop and improve your issue spotting skills, many chapters
end with exercises titled Can You Spot the Issues? As a warm up, an extensive
issue spotting scenario will be presented at the end of this chapter.

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With the scenario described above, the poorly prepared engineer would not have even spotted the issue. If an internetworking engineer did not know how the rules of subnetting applied to RIP and OSPF and how these rules cancreate a potential conflict when redistribution occurs between these two protocols,he or she would be completely lost in a scenario with the facts described above. To the well prepared, the issue sticks out like a sore thumb.Good CCIE certification preparation involves working through scenarios thatare loaded with such hidden issues.ccie training.