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Month: July 2013

Running vEOS in GNS3

Running vEOS in GNS3

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A few weeks back I posted about my experience using VirtualBox to create running Arista vEOS instances. I loved how VirtualBox made is so easy to create VMs. However it seemed unwieldy and error prone to rely upon the VirtualBox console to attach each vEOS interface to a particular LAN segment. My last post explored using the CLI to create these mappings. I had planned to generate topologies using a script to create the appropriate vboxmanage commands at some later date….

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Hardware – Differential Signaling

Hardware – Differential Signaling

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I’m planning a series of blog posts that delve deeper into the way networking hardware works. This started with an idea for a single blog post on PHY-chips but I found that there were too many fundamental concepts that I was ‘assuming’ were already known. I’m not an electronics expert, but I hope that I can explain just enough fundamentals to help explain the bigger picture. The first topic I want to cover is called differential signaling. Differential signaling is…

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