| This submode is used to create a named tenant. Within this submode, properties of |
| the tenant can be configured. VNS are configured and managed, which configure the membership of devices. |
| Virtual router is configured and managed, which defines the connectivity within and among tenants. |
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| The controller provides a tenant named 'default' to collect devices |
| which are not associated with any tenant. |
| |
| The controller provides a tenant named 'system' to hold system virtual router |
| which is used to define the connectivity among all tenants. |
| |
| The controller provides a tenant named 'external' to hold configuration for external network access. |