Cumulus Linux provides a virtual appliance for testing and development. It’s free to download. The post below shows how to get Cumulus VX up and running in UNL.
During my CCIE studies I used Unetlab for all my lab activities. I found it to be extremely useful for starting up a quick lab with a few routers to work on a specific technology and also for full scale labs – running 30 devices wasn’t an issue.
The Unetlab host runs in a virtual machine or as a bare-metal server and supports IOU, Dynamips and QEMU nodes. The full list of the supported nodes is listed here. Since completing my CCIE I’ve continued to use it for multi-vendor labs, in future I’ll post about some of the other supported vendors, showing how to get their devices up and running.
Why do we need another blog?…
….Why not? I was listening to the Packet Pushers Datanauts Podcast Episode 61, titled Trials & Tribulations Of Technical Blogging on a flight back from some work with a customer, thinking about the work that I’d been doing over the last few weeks. Off the top of the top of my head I could think of a few topics for posts. So here we are…
The content on this blog will mostly be about things that I’m working on, some technical demos and things that I think are relevant in the industry. It’s a very busy time for the industry at the moment, new technologies, vendors and products are appearing constantly. At my $dayjob I’m slowly seeing a change in the mindset of the people I talk to – traditional enterprises are open to new solutions (Cloud, SDN, SD-WAN etc), which means I need to know they are bringing to the table.
Please feel free to comment or provide feedback – I’m not too precious, so be honest!
underlay.io – the underlay network is the foundation. It provides the underlying physical transport, as a fabric, for the overlay to consume. The industry is adopting overlay networking models, where intelligence resides in the overlay. Importantly, the overlay is decoupled from the underlay, adding a layer of abstraction. This model will allow for innovative solutions in the overlay – but you’ve got to remember…
“the loftier the building, the deeper must the foundations be laid”
and .io because it’s cool 🙂