A SAN LIF has a WWPN. What does WWPN stand for?

A SAN LIF has a WWPN. What does WWPN stand for?

• A. World Wide Port Name
• B. World Wide Port Node
• C. World Wide Protocol Name
• D. World Wide Port Network

Answer: (D)

The term being tested is what a Fibre Channel port identifier means. WWPN stands for World Wide Port Name. In a SAN, every port on every device (host, switch, or storage controller) has a unique port name that identifies that specific port across the entire fabric. A SAN LIF corresponds to a port on the storage system, so it has its own WWPN. This enables precise zoning and access control for LUNs, because you can grant or restrict access based on the exact port rather than the device as a whole. It’s helpful to contrast with World Wide Node Name (WWNN), which identifies the device itself, while the port name identifies the particular port.

The term being tested is what a Fibre Channel port identifier means. WWPN stands for World Wide Port Name. In a SAN, every port on every device (host, switch, or storage controller) has a unique port name that identifies that specific port across the entire fabric. A SAN LIF corresponds to a port on the storage system, so it has its own WWPN. This enables precise zoning and access control for LUNs, because you can grant or restrict access based on the exact port rather than the device as a whole. It’s helpful to contrast with World Wide Node Name (WWNN), which identifies the device itself, while the port name identifies the particular port.