NAS is typically implemented over an Ethernet based TCP/IP network.

The most common NAS implementations available today are:

• Network File System (NFS)
• Microsoft Windows FileSharing aka Storage Message Block (SMB)
  
• Common Internet File System (CIFS)
  

There are other filesytems which introduce enterprise class servieces such as replication, snapshotting etc. these include

• Andrew File System (AFS)
• Sun Microsystems ZFS