Hi,
Are you referring to 7-mode system?
https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_cifs_shares.1.html
nobrowse
Disables enumeration of this share by browsing tools such as Server Manager or Active Directory Users and Computers
accessbasedenum
Enables the ability to hide the folders and files underneath this share when the user has no permissions to read them.
nobrowse means the share itself not discoverable by windows API's.
accessbasedenum means users can't see folders they don't have access to.