In order to use SNMPv3 the following parameters must be used.
SNMP V3 username - Required
SNMP engine ID - Optional (If wrong or omitted, discovery will find it.)
Authentication protocol - Required (Only MD5, SHA, and NONE are supported. NONE is the default.)
Authentication password - Required if Authentication protocol is used
Privacy protocol - Required (AES and DES are supported. NONE is the default.)
Privacy password - Required (if Privacy protocol is used)
Context name - Optional