SNMP V3 credentials are used for scanning network devices like, printers, routers, and switches.
To configure SNMP V3 credentials,

Authorization and Encryption Protocols
Select protocols based on the FIPS mode status:
FIPS-enabled mode
Authorization Protocol: SHA-256 or SHA-512
Encryption Protocol: AES-128, AES-192, or AES-256
Non-FIPS mode
Authorization Protocol: MD5, SHA-1, SHA-256, or SHA-512
Encryption Protocol: DES, AES-128, AES-192, or AES-256
Once the corresponding protocol type is selected, enter the Authorization password.
Once the Encryption protocol is selected, enter the Encryption password.
Enter the SNMP Port Number - It is set at 161 by default.
Set the Timeout (Indicates the time after which the connection would be terminated) - It is set at "5" secs by default which can be changed.
Set the Retries count (Indicates the no. of attempts that can be made before the timeout happens) - It is set at "0" by default which can be changed.