The World Wide Name (WWN) in the fibre channel networking technology is equivalent to the MAC address in Ethernet. There are six different types of WWNs defined in ANSI Standard for Fibre Channel Framing and Signalling (FC-FS) Spec Rev 1.4. This mib provides the mechanism to configure and report WWNs for the fibre channel devices connected to a fibre channel switch. GLOSSARY : NAA Network Address Authority (NAA) address formats for WWN. OUI Organization Unique Identifier. VSAN Virtual Storage Area Network, similar to a VLAN.