Contracts inside ACI.
In this cheat sheet, you will find summarized information about the contracts inside ACI.
The document is still to be completed with a lot more information in the coming days.
Layer 3 Outside (L3out) for Routed Connectivity to External Networks.
In this cheat sheet, you will find summarized information about the routed connectivity to external networks with ACI, the Object model, Design, Gateway redundancy and step-by-step configuration (a simple design as well as Inter-VRF Leaking with Shared L3out in Common tenant).