If the topology of your NSX-V environment is not one of the supported fixed topologies, you can migrate using the user-defined topology option. You must also use this option if you want to migrate a cross-vCenter environment to NSX Federation.
When migrating a user-defined topology, you can do an end-to-end migration or a lift-and-shift migration (see Migration Modes).
In a lift-and-shift migration, the default segments in NSX do no support DHCP servers and will result in the servers being down after migration.
To minimize disruption during migration, ensure that:
- NSX-V and NSX edges are on different ESXi hosts.
- Workload VMs directly connected to an Edge Services Gateway (ESG) are on a different ESXi host than the ESG.
