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Initial public release.
migpath moves live workloads from one NSX Federation to another, one subnet at a time, over a temporary Layer 2 bridge: bridge edges and Green segments, waves of cross-vCenter vMotions, a per-subnet gateway cutover, the unbridge, and a tested way back from each. Plan by default. --commit --expect <digest> writes only a reviewed plan. Blue is read again after every commit, production addresses are pinged across every change, every commit that changed something prints its UNDO, and a clean forward run ends with NEXT.
Built and proved out for essential.coach.
Full write-up: https://essential.coach/bridging-blue-to-green-nsx-federation/
GPL-3.0. Example names only. Nothing secret is printed.