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VEOS is a virtualized version of Arista’s EOS network operating system that runs on various hypervisors. The possible exception to this is if you’re working on a vendor-specific certification instead of learning core networking. Don’t get hung up too much on the interface. Select a NOS that has the networking function you’re trying to learn from whichever vendor. Remember–configuration is the boring part. I haven’t worked with Cumulus in production, although it’s been a passive interest for a while now. JUNOS, too, although I don’t have a Juniper virtual device on this list currently. I’ve worked with both EOS and NX-OS in production environments.

I have no personal allegiance to any of these operating systems. The list is vendor-neutral, sorted alphabetically. Use those same channels if you just want to tell me I’m wrong about whatever you come across in this post that’s…you know…wrong. Make sure your recommendations are for images which are freely available from the vendor for lab use with no licensing requirements or other strings attached.

Let me know on the Packet Pushers Slack channel or Twitter DM, and I’ll do additional posts or update this list over time. My goal is to clearly document what these images are and how to obtain them, as this data is less obvious than I’d like. Please contact for your custom requirements.Here’s my current list of no cost, minimal headache, easily obtainable networking images that work in a virtual lab environment such as EVE-NG or GNS3. If you have a specific need, we will happy to offer you a customized version of the hosted Service. Our focus is to provide IT professionals with a quality GNS3 virtual environment with no limitations on compute and memory resources.

We offer GNS3 Hosted Service at exclusively low cost as our way of giving back to the IT community. All our labs are hosted in California, USA with N +1 redundancy to ensure Zero Downtime. GNS3 Hosted service has been designed with top-notch quality on Cisco UCS servers. We have the expertise to set up your custom environment and all you have to do is to connect to our network using your laptop. GNS3 hosted service, gives you the advantage to set up a proof of concept or certification lab, available to you on demand. That is why we have extended our latest offerings in Infrastructure as a Service (IAAS). At CloudMyLab, we understand your hardships and we do not want you to spend your precious time setting up services to use labs. GNS3 Hosted Service is a month-to-month subscription service.