From: kelly@cliffhanger.com
Date: Wed Aug 22 2007 - 16:48:52 ART
That's nice.
I don't know if anyone has done it but, I plan to
test connectivity between a dynamips router and a
host running under VMWare or Parallels.
I'd be interested in hearing you're experiences if
you've attempted this.
--
___
/\ \
/ \ \
/ \ \
/ /\ \ \
/ / \ \ \
/ / / \ \ \
/ / /___\__\ \
/ / /___________\
\/_______________/
Impossible Triangle
M. C. Escher
Big riffs, massive grooves, and expansive improvisations
Quoting Colin McNamara <colin@2cups.com>:
I don't know if anyone has seen the press-releases but Cisco is
developing a virtual switch for VMware. There are no hard stats on
features yet, but what has been released hints to at minimum layer 3
switching in the virtual switch being made for ESX. I would guess that
if you fast forward to next year, many peoples labs will consist of
Dynamips (probably running on a vmware image) integrated with these
virtual switches.
--
Colin McNamara
(858)208-8105
CCIE #18233
"The difficult we do immediately, the impossible just takes a little
longer"
On Tue, 2007-08-21 at 19:42 +0100, Gary Duncanson wrote:
> Makes sense.
>
> Thanks David.
>
> Gary
> ----- Original Message -----
> From: "David Prall" <dcp@dcptech.com>
> To: "'Scott Vermillion'" <scott_ccie_list@it-ag.com>;
> <ccielab@groupstudy.com>
> Sent: Tuesday, August 21, 2007 5:58 PM
> Subject: RE: Virtual CCIE's? - 3550/3560
>
>
> > SIMICS is hardware emulation. It actually emulates the processors and
> > asics.
> > Putting together a switch would be rather difficult unless you worked for
> > Cisco since the ASIC's are proprietary and the processor to asic linkage
> > is
> > part of the design. Also a license for Simics is rather expensive.
> > Packages
> > like this are typically used in the design phase, since an ASIC can be
> > simulated rather easily, where as having it produced for debugging
> > purposes
> > can take months. So the software emulation of hardware is well worthwhile
> > during the design phase.
> >
> > --
> > http://dcp.dcptech.com
> >
> >
> >> -----Original Message-----
> >> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> >> Behalf Of Scott Vermillion
> >> Sent: Tuesday, August 21, 2007 12:28 PM
> >> To: ccielab@groupstudy.com
> >> Subject: RE: Virtual CCIE's? - 3550/3560
> >>
> >> The good news is that they appear to offer an "academic" license for
> >> individual use (approval time ~1 week). The bad news is that when I
> >> google "virtutech cisco switch," I come up with precious
> >> little. Here is
> >> a link to a presentation where Cisco is mentioned in passing:
> >>
> >> http://www.deserec.eu/files/first_workshop/pdf/DESEREC_IABG_Si
> >> mics_Workshop_2006.pdf
> >>
> >> It may indeed be possible to emulate a Cisco switch, but it
> >> appears as if
> >> there exists no "Dynagen equivalent" for we mere mortals. And no real
> >> history to indicate CPU/memory requirements (could you
> >> emulate one switch
> >> with a given hardware configuration or could you emulate
> >> 12?). Certainly
> >> there doesn't appear to be any "body of knowledge" out there.
> >> Also, not
> >> sure how to take it, but that presentation makes mention of only being
> >> able to bridge "TCP and UDP" from the simulated environment
> >> to a physical
> >> NIC (so no control plane traffic directly over IP? etc?). Thus, I'll
> >> keep my ear to the ground on this one, but I still plan to
> >> spend the next
> >> several months tackling the CCIE R&S lab vs. being one of the first to
> >> figure SIMICS and Cisco switches out...
> >>
> >> -------- Original Message --------
> >> Subject: RE: Virtual CCIE's? - 3550/3560
> >> From: "Lamine BOUAFIA" <b_lamine@yahoo.fr>
> >> Date: Tue, August 21, 2007 6:48 am
> >> To: <ccielab@groupstudy.com>
> >>
> >> Anyone who know mode about
> >> http://www.virtutech.com/products/ and how
> >> to
> >> simulate Cisco 3550/3560??
> >>
> >> Regards,
> >>
> >> -----Message d'origine-----
> >> De : nobody@groupstudy.com [mailto:nobody@groupstudy.com] De la part
> >> de
> >> Brian Dennis
> >> Envoyi : mardi 21 ao{t 2007 06:42
> >> @ : Scott Vermillion; Cisco certification
> >> Objet : [Bulk] RE: Virtual CCIE's?
> >>
> >> When teaching a class at Cisco recently one of the students
> >> said that
> >> the
> >> 3550 or 3560 can be "virtualized" using software from this company:
> >>
> >> http://www.virtutech.com/products/
> >> https://www.simics.net/
> >>
> >> Personally I never looked into it but someone here may be familiar
> >> with
> >> the software and it's capabilities.
> >>
> >> Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
> >> bdennis@internetworkexpert.com
> >>
> >> Internetwork Expert, Inc.
> >> http://www.InternetworkExpert.com
> >> Toll Free: 877-224-8987
> >> Direct: 775-745-6404 (Outside the US and Canada)
> >>
> >> >----- Original Message -----
> >> Subject: RE: Virtual CCIE's?
> >> Date: Mon, August 20, 2007 21:30
> >> From: "Scott Vermillion" <scott_ccie_list@it-ag.com>
> >>
> >> > Unfortunately, the more recent posts I've seen from him would
> >> indicated
> >> > that, due largely to ASICs that cannot easily be
> >> reverse-engineered, a
> >> > switch equivalent or extension is all but dead as a concept. This
> >> is why
> >> > I chose to go ahead and purchase some 3560-8PCs and just
> >> move on...
> >> >
> >> > -------- Original Message --------
> >> > Subject: Re: Virtual CCIE's?
> >> > From: "darth router" <darklordrouter@gmail.com>
> >> > Date: Mon, August 20, 2007 9:18 pm
> >> > To: ISolveSystems <support@isolvesystems.com>
> >> > Cc: "Scott Vermillion" <scott_ccie_list@it-ag.com>, "Cisco
> >> > certification" <ccielab@groupstudy.com>
> >> >
> >> > That depends on the devs, and if they can continue to support
> >> future
> >> > platforms, whether it is possible or feasible. No switches yet,
> >> maybe
> >> > never, but who knows, chris has some posts where he wanted access
> >> to
> >> > 6500 switches. Might be workin on it :P I hope so. Here
> >> is the site
> >> > with the history.
> >> >
> >> > http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator
> >> >
> >> > On 8/21/07, ISolveSystems <support@isolvesystems.com> wrote:
> >> >
> >> > You said that Dynamips is in its infancy. I am curious to know
> >> > how old is
> >> > Dynamips? How do you see the continuing development of Dynamips
> >> > to support
> >> > future IOS development?
> >> >
> >> > Regards,
> >> >
> >> > On 8/20/07, Scott Vermillion < scott_ccie_list@it-ag.com> wrote:
> >> > >
> >> > > Gregory,
> >> > >
> >> > > Were a person to acquire the CCIE cert w/ nothing more than
> >> > time on
> >> > > Dynamips, that person may indeed face a few embarrassing
> >> > moments
> >> > > early on. So it should be outlawed and shunned by the
> >> > CCIE-seeking
> >> > > community at large? I'd wager that 90% or better using
> >> > Dynamips for
> >> > > CCIE study have sufficient experience w/ real HW to know
> >> > which side
> >> > > the power switch is on.
> >> > & gt;
> >> > > Do you think you'll normally have physical access to all of
> >> > the
> >> > > routers on which you are expected to perform your work? If
> >> > you
> >> > > require that to do your job, are you effective?
> >> > >
> >> > > Recall that this is real IOS -- not some training
> >> > simulator. So the
> >> > > chassis, the power supply, the interface cards, etc. are
> >> > lacking in
> >> > > your CCIE lab, where you are intensely focused on subtle
> >> > protocol
> >> > > interplay. So? Can you even touch the HW during the CCIE
> >> > practical
> >> > > exam?
> >> > >
> >> > > I have posted this as recently as a few hours ago on the
> >> > professional
> >> > > board:
> >> > >
> >> > > "I have now been dealing with Dynamips since (roughly) Dec of
> >> > last
> >> > > year. I generally trust it (yes, bugs now and then and even
> >> > the
> >> > > occasional crash, but can IOS itself claim otherwise?) and
> >> > actually
> >> > > prefer it over real hardware for a couple of reasons:
> >> > >
> >> > > 1. Recabling a HW lab takes longer than launching a new .net
> >> > file. I
> >> > > keep every .net file I've ever created, along with all of the
> >> > router
> >> > > NVRAM files, etc. Modifying one lab for another purpose gets
> >> > easier
> >> > > and easier as your collection grows. Take good notes on why
> >> > you
> >> > > created a given environment and your results. This becomes a
> >> > highly
> >> > > valuable reference resource when you've grown a little fuzzy
> >> > on some
> >> > > details of a prior battle.
> >> > >
> >> > > 2. The capture function of Dynagen is killer. Definitely
> >> > beats debug
> >> > > output when you're really trying to understand what's going
> >> > on under
> >> > > the hood. If you're proficient w/ Wireshark or any other PA
> >> > that can
> >> > > open a .cap file, this is a "ki ller app" for sur e."
> >> > >
> >> > > Dynamips is nothing short of revolutionary for understanding,
> >> > > troubleshooting, prototyping, and generally poking and
> >> > prodding
> >> > > network-related protocols. It has some limitations, yet in
> >> > its
> >> > > infancy. Know those and live with them. And then leverage a
> >> > tool
> >> > > that can only be bested by some seriously deep pockets...
> >> > >
> >> > > Regards,
> >> > >
> >> > > Scott
> >> > >
> >> > > -------- Original MessageGr --------
> >> > > Subject: Virtual CCIE's?
> >> > > From: "Gregory Gombas" < ggombas@gmail.com>
> >> > > Date: Mon, August 20, 2007 6:19 pm
> >> > > To: "Cisco certification" <ccielab@groupstudy.com>
> >> > >
> >> > > Guys,
> >> > >
> >> > > I was checking out Dynamips and its pretty cool and all,
> >> > but it
> >> > > does
> >> > > worry me a little bit....
> >> > >
> >> > > How will employers view the CCIE certification after
> >> > they've been
> >> > > burned by hiring a CCIE who has never touched a real router
> >> > in
> >> > > their
> >> > > life?
> >> > >
> >> > > Do you like the idea of a pilot flying your plane whose
> >> > only
> >> > > training
> >> > > was with a virtual flight simulator?
> >> > >
> >> > > ; I remember the days when the MCSE was a hot cert until an
> >> > army of
> >> > > paper CCIE's hit the job market.
> >> > >
> >> > > Maybe they won't call it a paper CCIE, maybe they'll coin a
> >> > new
> >> > > term
> >> > > like virtual CCIE.
> >> > >
> >> > > Just food for thought...
> >> > >
> >> > >
> >> > >
> >> >
> >>
> >> ______________________________________________________________
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> >> >
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