From: Joseph Brunner (joe@affirmedsystems.com)
Date: Tue Feb 12 2008 - 16:27:31 ARST
You need real world experience to re-inforce the theory... I could "tell
you" how to moonwalk all day long... until you throw baby powder all over a
marble floor and learn to move your arms in sync with the leg sliding back,
and turn your feet from the heel 45 degrees out as your feet are sliding
back...it wont look like Mike's... when your experience doing this
re-inforces the theory you can remove the baby powder and even be wearing
sneakers on a carpet, and still it glides the same...
BGP same thing... you need experience... configuring, breaking, fixing.
LOL
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Greg
Wendel
Sent: Tuesday, February 12, 2008 9:18 AM
To: Jersey Guy
Cc: Cisco certification
Subject: Re: can't understand BGP Theory
You will need to understand this completely before you should take the exam.
On Feb 11, 2008 9:23 PM, Jersey Guy <guy.jersey@gmail.com> wrote:
> From Halabi's book, Internet Routing Architectures, 2nd edition, page 167:
>
> *MEDs are somewhat handicapped by aggregation scenarios in which providers
> announce a given CIDR block from multiple locations in their network and
> suppress the smaller routes from the block. Utilizing MEDs in this
> scenario
> could potentially result in suboptimal routing because the more-specific
> routes of the CIDR block could be scattered throughout the AS and MEDs
> associated with more-granular routes are no longer available.
>
> When using MEDs to perform what's commonly referred to as best-exit
> routing,
> some providers leak the more-specifics of their CIDR blocks to select
> peers
> to remove the offshoots introduced by aggregation. The problem with this
> is
> that controlling the more-specific announcements is sometimes complex, and
> failure to do so can result in some very suboptimal routing situations.
> *
> I read the above two paragraphs five times but didn't understand it. Which
> of the following is true:
>
> a) I have no choice but to understand this stuff, to pass the lab. I need
> to
> understand *everything* in Halabi's book, period.
> b) The lab is tough but not THAT tough. I can skip certain convoluted
> sections of every topic and still manage to get by.
> c) Forget it. I am not going to make it. MED is a piece of cake; what's so
> hard to understand??
> d) I need to read "How to grow gray matter and raise IQ" book before
> Halabi's.
>
> Thing is....how thoroughly do I need to pound away at theory/reading
> before
> hitting the equipment, lab scenarios and excercises?
>
>
> thanks, JG
>
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-- Gregory Wendel Springfield VA, 22153
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