Viability of GNS3 network simulation for testing features/configurations.

Wed Oct 16 20:10:51 UTC 2019

I heard good stuff about Cisco Virl. It's like an ESX for network devices.

On 2019-10-16 15:23, Jason Kuehl wrote:
> I use the server version of GNS and I love it.  I just need to VPN 
> into my DC and use my client to connect to GNS.
>
> On Wed, Oct 16, 2019 at 2:22 PM Mike Bolitho <mikebolitho at gmail.com 
> <mailto:mikebolitho at gmail.com>> wrote:
>
>     EVE-NG is also really good. Just an FYI, GNS3 went through a major
>     refresh about 18 months ago or so and it's so much better now.
>     Either way, you can't go wrong with GNS3 or EVE-NG.
>
>     - Mike Bolitho
>
>
>     On Wed, Oct 16, 2019 at 11:18 AM Aaron Gould <aaron1 at gvtc.com
>     <mailto:aaron1 at gvtc.com>> wrote:
>
>         Oh, forgot the links…
>
>         http://www.eve-ng.net/
>
>         http://www.eve-ng.net/documentation/howto-s
>
>         *From:*NANOG [mailto:nanog-bounces at nanog.org
>         <mailto:nanog-bounces at nanog.org>] *On Behalf Of *Aaron Gould
>         *Sent:* Wednesday, October 16, 2019 1:14 PM
>         *To:* 'Mike Bolitho'; 'Tom Beecher'; 'Ryland Kremeier'
>         *Cc:* nanog at nanog.org <mailto:nanog at nanog.org>
>         *Subject:* RE: Viability of GNS3 network simulation for
>         testing features/configurations.
>
>         I’ve used GNS3 some years ago for a lot of simulation and
>         testing.  But, I’m blown away at how much more I like EVE-NG
>         (emulated virtual environment next-gen)
>
>         I use the community free version… lots of vendor OS support…
>         of which, I’ve actually work with the following….
>
>         -XRv
>
>         -IOS virtual
>
>         -vMX
>
>         -vSRX
>
>         -vQFX
>
>         …check your in-box for a screen shot of my current environment.
>
>         -Aaron
>
>         *From:*NANOG [mailto:nanog-bounces at nanog.org
>         <mailto:nanog-bounces at nanog.org>] *On Behalf Of *Mike Bolitho
>         *Sent:* Wednesday, October 16, 2019 12:02 PM
>         *To:* Tom Beecher
>         *Cc:* <nanog at nanog.org <mailto:nanog at nanog.org>>
>         *Subject:* Re: Viability of GNS3 network simulation for
>         testing features/configurations.
>
>         Totally agree with Tom here. It's going to work really well
>         for most things. But if you're testing code for bugs you NEED
>         to do it on the same hardware you have in your environment in
>         an actual lab.
>
>
>         - Mike Bolitho
>
>         On Wed, Oct 16, 2019 at 9:56 AM Tom Beecher
>         <beecher at beecher.cc> wrote:
>
>             GNS3 can do a heck of a lot, and the price is definitely
>             right.
>
>             I have used it extensively for initial fleshing out of
>             designs or ideas, protocol nerding, automation interaction
>             testing, etc. There certainly other tools out there, but
>             being able to visually draw a topology out, connect the
>             dots, and have an environment to test in about 10 minutes
>             is very nice. There is an API you can hook into to do some
>             of that for you if you are so inclined, but that would
>             depend on your use case and resources. For how I've used
>             it, never been required.
>
>             Some of the VMs from vendors can be pretty CPU and/or RAM
>             intensive, so I've had the best experience running them
>             all on a dedicated server, not locally. Again, use case
>             dependent. For code testing I would always run the test
>             set on hardware as well for likely obvious reasons.
>
>             If you really get into the weeds with it you can do quite
>             a lot.
>
>             On Wed, Oct 16, 2019 at 11:52 AM Ryland Kremeier
>             <rkremeier at barryelectric.com
>             <mailto:rkremeier at barryelectric.com>> wrote:
>
>                 Hello,
>
>                 I’m currently in the process of setting up a near
>                 identical network to our own in GNS3 for testing
>                 purposes. Has anyone here tried this before to any
>                 success? We need to buy the Cisco IOSv image to
>                 continue with the sim so I figured I would inquire
>                 here first before diving in.
>
>                 All info is appreciated,
>
>                 -- 
>
>                 Ryland Kremeier
>
>
>
> -- 
> Sincerely,
>
> Jason W Kuehl
> Cell 920-419-8983
> jason.w.kuehl at gmail.com <mailto:jason.w.kuehl at gmail.com>
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