DOCKER OVERLAYS ON CISCO ACI

I started the new year troubleshooting Docker Overlay network traffic pushed through a Cisco ACI fabric that was not working despite physical connectivity and contracts being in place. Or so we thought... as VXLAN encapsulated packets (used by Docker overlays) do not follow the usual expected pattern.

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NOTES: DOCKER NETWORKING

I've been having a lot of fun recently with Docker containers, from packaging and running my own Python scripts, to building the Pocket Internet proof of concept at the recent RIPE Hackathon and, finally, designing a solution for integrating a multi-datacentre, multi-environment Docker Swarm with a Cisco ACI fabric and the rest of the network for one of my customers. Below you will find my notes accumulated from going through official documentation, blog posts and experimentation in the lab.

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