PATIPEntry is auto-generated (southbound case, decentralized for containers) or through REST (for centralized case, user can choose a IP).
pat_centralized: This flag will determine whether we can expect anchor point or not.
ip_address: Its own IPAddress.
ip_type: IPv4 or IPv6 (only IPv4 supported in R1.0)
last_updated_by: ID of the user who last updated the object.
last_updated_date: Time stamp when this object was last updated.
entity_scope: Specify if scope of entity is Data center or Enterprise level
creation_date: Time stamp when this object was created.
associated_domain_id: The ID of the associated l3-domain.
owner: Identifies the user that has created this object.
external_id: External object ID. Used for integration with third party systems
hypervisor_id: The ID of the PatMapper entity to which this domain is associated to.