From: Balmik Soin (balmik@staff.iinet.net.au)
Date: Wed Nov 07 2007 - 23:52:37 ART
As another first-attempt passer, I used Dynamips in my lab prep as well.
When going through the workbooks, I wrote down all the commands I would
use when I couldn't apply the config to Dynamips, and I wrote down all
the verification commands I would use to check, and what I would look
for.
I did get two 3560s for a few weeks on loan, and I tried out all the
commands and configurations I could think of on it - and I did have a
lot of practical experiences with switches. But Dynamips pretty much did
the trick for me - while you can't lab up the more esoteric layer 2
options, it can approximate most things.
-- Balmik Soin [CCIE #19255] Voice Network Engineer Voice Engineering - Network Services iiNet Limited> -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of > Scott Vermillion > Sent: Thursday, 8 November 2007 5:10 AM > To: 'Greg Wendel' > Cc: 'Patrick J Greene'; 'Joseph Brunner'; ccielab@groupstudy.com > Subject: RE: Dynamips Question > > Hi Greg, > > This list is apparently growing and growing. We've just today heard from > two more first-attempt passers who apparently used Dynamips in their lab > prep... > > Regards, > > Scott > > > -----Original Message----- > From: Greg Wendel [mailto:gwendel@gmail.com] > Sent: Wednesday, November 07, 2007 1:06 PM > To: Scott Vermillion > Cc: Patrick J Greene; Joseph Brunner; ccielab@groupstudy.com > Subject: Re: Dynamips Question > > Arin Richmond from Australia also passed using a combination of > dynamips with physical switches. I am using a combination of dynamips > standalone, dynamips with physical switches,, labs at work and remote > rack rentals in my own preparation for the R&S. > > On Nov 7, 2007 11:46 AM, Scott Vermillion <scott_ccie_list@it-ag.com> > wrote: > > Of course the other option many of us go for is to integrate physical > > switches with the Dynamips environment. Like I've said before Joe, if > your > > friendly rack rental outfit swapped physical routers and a Dynamips > server > > (much like switching someone's normal coffee with Folger's Crystals (for > > those of you around and coherent here in the States in the '70s)), how > would > > you even know the difference? Hint: you wouldn't. > > Perhaps for a better understanding that I can offer, ask Con Spathas. > He's > > the guy who just posted here about his pass on a *first attempt* in > Brussels > > after preparing with a *Dynamips lab*... > > > > -----Original Message----- > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of > > Patrick J Greene > > Sent: Wednesday, November 07, 2007 7:47 AM > > To: Joseph Brunner; ccielab@groupstudy.com > > Subject: RE: Dynamips Question > > > > Joseph, > > Switching is accomplished with a 16-port switch module in the 3600 > router. > > You still have all of the trunking, channeling, and other switching fun > you > > can handle. > > > > I am painfully aware of how many points of switching there are. > > > > Thanks, > > Patrick > > > > > > -----Original Message----- > > From: Joseph Brunner [mailto:joe@affirmedsystems.com] > > Sent: Wednesday, November 07, 2007 9:40 AM > > To: Patrick J Greene; ccielab@groupstudy.com > > Subject: RE: Dynamips Question > > > > I don't understand this... > > > > How can you study with only routers on a Routing & SWITCHING test... > > > > And believe me when you find out how many points of switching there are, > you > > may choke > > > > -----Original Message----- > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of > > Patrick J Greene > > Sent: Wednesday, November 07, 2007 8:50 AM > > To: ccielab@groupstudy.com > > Subject: OT: Dynamips Question > > > > I have a laptop with a 1.7Ghz Centrino and 2GB of RAM running bare bones > XP. > > I was able to bring up the entire IE Lab (14 devices) on 2 Dynamips > > instances but obviously it runs like molasses going uphill in January. > The > > CPU stays pegged at 100% and there is still about 125MB of RAM free. I > can > > run a browser and wordpad on the laptop without much pain, but when I > telnet > > to the routers (from another laptop) it is unusable. I do connect but > just > > painfully slow. > > > > Any performance tuning ideas? I would like to keep the environment on > the > > laptop because as a consultant I travel a lot. It's nice to have your > lab > > portable. > > > > Thanks for the advice. > > > > Patrick > > > >
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