Viability of GNS3 network simulation for testing features/configurations.

Wed Oct 16 18:22:25 UTC 2019

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> 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] *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
> *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] *On Behalf Of *Mike Bolitho
> *Sent:* Wednesday, October 16, 2019 12:02 PM
> *To:* Tom Beecher
> *Cc:* <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> 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
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.nanog.org/pipermail/nanog/attachments/20191016/a22bd1ce/attachment.html>