From: Gary Duncanson (gary.duncanson@googlemail.com)
Date: Sat Apr 12 2008 - 16:56:41 ART
Draw a diagram. Especially a L2 diagram or you will get confused and nuke
your lab.
Don't forget to turn those interfaces on! ;)
----- Original Message -----
From: "Tanvir Afsar" <tanvir.afsar@gmail.com>
To: "Edward Balow" <ebalow@hotmail.com>
Cc: "ccie az" <ccieaz@googlemail.com>; "groupstudy" <ccielab@groupstudy.com>
Sent: Saturday, April 12, 2008 2:43 PM
Subject: RE: Lab Diagrams
> Hi,
> Just want to add here that Practice labs usually follow the same
> physical connections that are repeated again and again , in real lab a
> diagram will help visualize whats going on and as Edward has pointed out
> "A big picture of what's going on is generally required."
> Tanvir
> On Sat, 2008-04-12 at 08:56 -0400, Edward Balow wrote:
>> I did not complete a L2 diagram at my first lab attempt and I did on my
>> second
>> attempt. I fully believe this is one of the contributing factors to my
>> passing on the second try.
>>
>> The below information is talking about practice labs only to avoid NDA
>> violations-------
>>
>> Once you get to the more complex practice labs, it should become more
>> apparent. In short, you're going to end up with a lot of trunk links and
>> access links and different vlans on different switches. Sometimes even
>> dot1q
>> tunneling.
>>
>> A big picture of what's going on is generally required. To make matters
>> more
>> complicated, sometimes information is left off. For example, assume
>> you're
>> told to put all switches in transparent mode but are not specifically
>> told to
>> create each VLAN on each switch. Obviously the vlans get created on the
>> switches that have access ports on them. But what about intermediary
>> switches? It's easily seen which vlans you need to create on the
>> switches in
>> the middle, and which ones you don't, based on a diagram.
>>
>> I'd say the "missing" information is one of the main reasons why a L2
>> diagram
>> is helpful.
>>
>> My L2 diagrams looked something like this (again, practice lab, not real
>> lab)
>>
>> r1 r2 r5
>> |f0/1 |f0/2 |f0/5
>> | | f0/21 trunk |
>> ------------|----------------|------------------------|
>> v5 sw1 v7 | | v5 sw2 |
>> ------------| |-------------------------|
>>
>> pretty crude in ascii, but you should get the idea. You know exactly
>> what
>> trunk links go to what switch. You also know vlan 5 must trunk between
>> sw1
>> and sw2. However, you can remove/prune vlan 7 if I want. > Date: Sat,
>> 12 Apr
>> 2008 13:42:02 +0100> From: ccieaz@googlemail.com> To:
>> ccielab@groupstudy.com>
>> Subject: Lab Diagrams> > Hi all,> > This maybe a pretty stupid question,
>> but
>> here goes.> > I am just starting some of the practice labs now and I
>> heard
>> some> people draw a Layer2 diagram as well as the others. I don't
>> understand>
>> how/why this L2 diagram would help.> > My question is the L2 diagram just
>> composes the switches and links> between them right? Whats the benefit
>> behind
>> this? Maybe its just me,> but the L2 side of things just seems easy to
>> me.> >
>> Has anyone got any example diagrams that they draw before a practice> lab
>> that
>> i could take a look at?> > Thanks> > Az> > > Pass the CCIE in six weeks,
>> Guaranteed!> http://www.certscience.com/CCIE>
>> _______________________________________________________________________>
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>>
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>
>
> Pass the CCIE in six weeks, Guaranteed!
> http://www.certscience.com/CCIE
> _______________________________________________________________________
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