What are /r/gns3's favorite Products & Services?

From 3.5 billion Reddit comments

You might be better served with cEOS (Docker), rather than vEOS (VMs). Has a handful of limitations (no MLAG, no LACP, couple of other things I forget), but if you're mostly concerned with OS testing and most of your topology is L3 P2P networks, it should be fine.

I know a few people who use it for network simulation / configuration testing, they create their entire network of "switches" from scratch every time the test suite is run.

You'll also get a lot of mileage out of setting up KSM (memory deduplication) for the GNS3 VM if you're running a lot of the same OS image. Memory capacity is always the killer when you're running a lot of VMs.

Frankly I've also found it's also more difficult, and honestly unnecessary to use the provided GNS3 appliance VM. Just install the gns3-server package on Ubuntu (or your choice of OS) and install the systemd unit file to start it on boot.

The GNS appliance definition files you can download from the website tell you the filename you need and its checksum, and will set it up with appropriate options.

https://www.gns3.com/marketplace/appliances/arubaos-cx-simulation-software

How you obtain it is left as an exercise to the reader. This blog post suggests you only need to make an account

https://ethancbanks.com/free-networking-arubaos-cx-lab-image-from-aruba-networks/

This is the case with a lot of vendors, Juniper and Arista also only require an account. It's a sensible option if you ask me, it's not like you can really use it for any actual work, but what better way to get people hooked on your products.

I would recommend installing Ubuntu Server, then installing gns3-server on the VM. As long as that VM has access to the network your client software is on, you will be able to connect to it as a "remote GNS3 server". Plenty of instructions on GNS3. Just do not install gns3-gui, only gns3-server.

Once your client is configured to connect to the remote server, you can (through Edit->Preferences) add IOS images and other things to the Gns3 server running on the Ubuntu VM.

Checkout the documentation and basic tutorial stuff on their site. When in doubt, Youtube, there are a ridiculous number of videos for setting up GNS3.

https://www.gns3.com/marketplace/appliances you'll need the ubuntu appliance (there's only two, choose which best suits what you're trying to do). Import the appliance into GNS3 then load the image to the appliance.

>E_FAIL (0x80004005)Component: ConsoleWrapInterface: IConsole

Mate I found this article in Virtual Box website, the error pertains to Hyper-V being enabled in your machine. Can you check if it is enabled and if yes disable it and see if it fixes the issue:

https://www.virtualbox.org/ticket/17753

I directed the question here instead: https://www.gns3.com/community/support/qemu-machine-emulators-and-tools-100-cpu-usage

I use GNS3 Applicance:

https://www.gns3.com/marketplace/appliance/cisco-iosvl2

along with cisco virl image:

vios_l2-adventerprisek9-m.vmdk.SSA.152-4.0.55.E

The MD5 is: 1a3a21f5697cae64bb930895b986d71e

​

just search the image and match the MD5 for data integrity

https://www.gns3.com/marketplace/labs Might not be exactly what you want (I can't open this on my current PC to see what the files open up to, but I'm guessing its some form of topology with instructions on what to build). Unless there is a repository somewhere or someone is nice enough to send you save files, maybe spending a little time building any of these labs that seem useful for what it is that you want to do is the least time sink option.

There is a template in the GNS3 Marketplace and you can import the template and download the required setup files. Okay this is not a switch but does run Comware Version 7 and allows you to get a feel for commands and navigation. Found this easy to setup after doing a one day HP course.

Link: https://www.gns3.com/marketplace/appliance/hp-vsr1001

BTW - HP do have something that can be installed and setup as a stand alone emulator from what I hear but I doubt this would work with GNS3