By: Tom Sydney Kerckhove <syd@cs-syd.eu>
Download the chassis off the router The chassis file says what a vm has to look like for a configuration to mean there what it means on the real device, and until now it was written by reading the very configuration file it is meant to check. Asking the router instead removes that circularity. Interface names come from default-name, so an interface an earlier configuration renamed still reports what the hardware calls it, and from find, whose order is the order a vm has to rename them in.