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The bulk import script can be found in /usr/local/nmis9/admin/import_nodes.pl and and there is a sample CSV file /usr/local/nmis9/admin/samples/import_nodes_sample.csv.
The minimum properties you need to have to add a device to NMIS are, name, host, group, role, community, roleType and netType. Technically you can use defaults for group and role and the name and host maybe the same, so the absolute minimum is host and community. This sample CSV includes the full five properties and if required you can use additional ones.
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