HP 9000 Virtual Library System - Manual (Page 250)

W
WWNN World wide node name. A globally unique 64-bit identifier assigned to each Fibre Channel node.
WWNN World wide node name. A globally unique 64-bit identifier assigned to each Fibre Channel node
process.
WWPN World wide port name. A unique 64-bit address used in a FC storage network to identify each
device in a FC network.
250 Glossary