From: ISolveSystems (support@isolvesystems.com)
Date: Sat Aug 18 2007 - 10:33:28 ART
Hi Jay,
Were you able to boot all 6 routers, 4 switches, and 3 BB on Dell D620 with
2gb of ram?
Thanks.
On 8/17/07, Swan, Jay <jswan@sugf.com> wrote:
>
> My opinion: you'll learn a lot by trying to adapt workbook labs to
> whatever resources you have, whether those resources are real routers or
> Dynamips. Yes, it takes up some extra time, but it's still valuable
> experience.
>
> During my final preparation phase I had access to a lab with a few
> routers, two 3550s, and a 3560; and Dynamips on a Dell D620 with 2GB
> RAM. I was never able to completely duplicate any of the commercial labs
> with this equipment, but I was able to modify the labs to meet my study
> goals and pass the exam. In some ways, I think the experience of
> modifying the labs as needed was more educational than doing them as
> written.
>
> Jay (#17783)
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> scott_ccie_list@it-ag.com
> Sent: Friday, August 17, 2007 3:34 PM
> To: ccielab@groupstudy.com
> Subject: IE Workbook Lab Topologies
>
> Hi all,
>
> I admit that this is a cross-post from the Professional board, but I
> didn't yet have myself subscribed to this list, so I hope you will
> overlook it just this once (my guess is that there are many here who
> never look there, so chances are probably a bit higher someone will have
> some thoughts to offer)...
>
> ____
>
> OK all, I know that many here use these workbooks, so I'm hoping for
> some insight. I had planned to use a large 8 x CPU server to run all
> router instances in Dynamips. I had then thought to buy two or perhaps
> four 3560-8 switches. However, when I look at the drawing on page 18 of:
>
>
> http://www.internetworkexpert.com/downloads/iewb-rs.v4.00.sample.lab.pdf
> (1 MB file, BTW)
>
> I see that, for example, SW2 has connections to four different distinct
> routers. I had planned to have one GBIC connection to the server per
> switch (four NICs on the server). Not sure, exactly, how to work this
> out without doing too much customization of each lab, which could be
> confusing and chew up a lot of valuable time. The one obvious thing I
> can think to do would be to create an emulated switch for each physical
> switch. Then all routers would terminate to emulated switches only, per
> the lab topology. I would then bridge the emulated switches to physical
> server NICs using the Windows loopback and run 802.1q trunks to with the
> physical switches.
>
> For those of you who have experience with the IEWBs, do you think this
> feasible? Or too much trouble to keep straight, since it wouldn't map
> exactly to the lab topology.
>
> And yes, I realize that those 8-port switches would not fully support
> what I'm seeing on page 18. My thought was that rather than three links
> between each switch, I'd drop it down to two in some or all places.
> Thoughts on the impact of that approach?
>
> Thanks much...
> ____
>
> The bottom line is that I can't afford four 24-port 3550s or 3560s
> (self-employed, slow year). So I'm just trying to work out some form of
> lab prep that is not horribly expensive yet is still effective. That
> server sitting there doing nothing is just too great a temptation; I
> cannot justify bying a bunch of used or new routers with that resource
> available to me. Just need to work out the switching part and I'm not
> too keen on rack rentals. Seems like you need to book too far out and
> availability can be very spotty. I'm certainly open to the idea of mock
> labs, just don't want to rely on rentals for study, which I do at very
> odd hours at times...
>
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