Which two software-based encryption types does NetApp ONTAP software support?

[Reference:https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm-concepts%2FGUID-394BC638-DADB-4CA4-8C8E-D7F942F30458.html, NetApp Aggregate Encryption (NAE) and NetApp Volume Encryption (NVE) are two software-based encryption types that ONTAP software supports. NAE encrypts all volumes in an aggregate using a single key per aggregate. NVE encrypts individual volumes using a unique key per volume., ]