This topic describes how to roll back a migration by modifying routes.
You can choose one of the following rollback solutions based on how your network instances are migrated:
- Migrations with transient connection errors: re-add the deleted static routes of the peering connection. In addition, you must delete the CEN routes that are more specific than or have the same destination as the re-added static routes.
- Seamless migrations: re-add the deleted specific routes.