From: Darby Weaver (darbyweaver@yahoo.com)
Date: Mon Dec 18 2006 - 09:28:01 ART
My experience exactly.
And now with all of the Etherchannel and Spanning-tree
loops, I'd like to think a tough lab would be an
indicator of that.
Look at Cisco Press Practical Studies Switching to get
an idea of what I mean.
--- Cacca Mucca <caccamucca@gmail.com> wrote:
> My last job, I worked at layer 2 network from hell.
> So, for me, CCIE lab
> just got easier.
> Finally, something went my way for once.
>
> Good luck everyone for the year 2007.
>
>
>
>
> On 12/17/06, loc.pham@comcast.net
> <loc.pham@comcast.net> wrote:
> >
> > George,
> > That is exactly why Cisco want to test all
> candidate with STP on
> > multiple switches !!!
> > Read this link will show you :
> > http://www.cisco.com/warp/public/473/21.html
> >
> > That is also why CCIE pay big $$$ ( hopefully
> still for along time )
> > HTH,
> > lP
> >
> >
> > Re: Prediction - Lab Results CCIE
> > ---------------Reply to sender to list
> > # From: "CCIE" <ccie@madisonsolutions.net>
> > # To: "Darby Weaver" <darbyweaver@yahoo.com>,
> "'Cisco certification'" <
> > ccielab@groupstudy.com>
> > # Subject: Re: Prediction - Lab Results
> > # Date: Sun, 17 Dec 2006 09:02:39 -0500
> > # References:
> <923158.70406.qm@web56814.mail.re3.yahoo.com>
> > # Reply-to: "CCIE" <ccie@madisonsolutions.net>
> >
> >
> > Good morning:
> >
> > I concur, change is disruptive for a short period.
> Playing with four
> > switches in my own lab I have started to see
> things I did not expect and
> > wanted to pass along.
> >
> > We all have read about VTP and when you add a new
> switch to a network you
> > should set the VTP to transitive before bringing
> the switch on line. The
> > other day as I added a switch into my lab to
> practice spanning-tree, and
> > the
> > VTP election of the additional switch deleated all
> of my VLAN's.
> >
> > Having never seen this in a real network I was
> taken back for a moment.
> > All
> > of the interfaces with assigned VLAN's went from
> happy blinking green to
> > flatline orange. My network went from working to
> dead.. All of the VLAN's
> > that I had built were still on the interfaces but
> not in the vlan
> > database.
> >
> > I discoverd the issue after a moment and resolved
> the VTP election by
> > having
> > only one "vtp mode server" in the switch domain. I
> mention this as an
> > example of what can go wrong on the new lab, or
> worse what is designed
> > into
> > the new lab. With both 3550's and 3560's it would
> be very easy for the
> > network to go dark in the middle of your lab
> because of a VTP issue.
> >
> > For the Lab I think it is wise to not only look at
> configuration issues,
> > but
> > to remember the simple rules to stop spanning-tree
> loops, check what you
> > are
> > doing as you bring up interfaces, vtp issues, etc.
> The big clue that I
> > expect to see on the Lab, is that the trunking
> interfaces between switches
> > are shutdown.
> >
> > Any port that is dark that needs be turned up is
> going to be suppect, and
> > should be analized before turning up. The second
> clue would be to watch to
> > see the VTP commands, and the order in which you
> activate them. If the
> > VLAN's are pre-built and the primary VTP server
> will become a switch with
> > no
> > VLAN's; what have you added to your lab panic
> time?
> >
> > The last tip before I go to breakfast, study the
> switch topology before
> > starting to configure the swith network. Expect
> all sorts of loops,
> > mis-configured interfaces, etc.
> >
> > Merry Christmas and be loop free in 2007.
> >
> > George Morton, Ph. D.
> > ----- Original Message ----- From: "Darby Weaver"
> <darbyweaver@yahoo.com>
> > To: "'Cisco certification'"
> <ccielab@groupstudy.com>
> > Sent: Saturday, December 16, 2006 12:43 PM
> > Subject: Prediction - Lab Results
> >
> >
> > I know that there have only been a very few
> people who
> > have passed the lab since the 3-4 switches were
> > introduced into the lab this last month or
> so...
> >
> > It seems it is always this way after a change,
> no
> > matter how minor.
> >
> > However, I want to be the first to say that I
> predict
> > that Lab Candidates will begin to pass the lab
> again
> > at or near the same passing rates as before
> (the new
> > labs were introduced last month)as early say...
> > within 30 days or so.
> >
> > I just have a gut feeling... about this.
> >
> > Anyone care to watch the numbers with me...
> >
> > Funny how it is all a numbers game in the end.
> >
> > Merry Christmas and Happy New Year!
> >
> >
> > And I can't wait till my favorite vendors
> update their
> > materials on Switching as well. Not that what
> they
> > have is not pretty good already, but I'm sure
> they are
> > not sleeping at the wheel either.
> >
> >
> > Meanwhile, has anyone taken a look a Cisco
> Press
> > Practical Studies for Switching.
> >
> > It offers a lot of great insight if you can
> look past
> > the model numbers and get the same great
> results from
> > some 3550/3560's.
> >
> >
>
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