World Wide Port Name: Difference between revisions

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In [[computing]], a ”’World Wide Port Name”’, ”’WWPN”’, or ”’WWpN”’, is a [[World Wide Name]] assigned to a port in a [[Fibre Channel fabric]].<ref name=”c901″>{{cite web | title=IBM Storage FlashSystem 7300 and 7200 | website=IBM | date=2025-02-28 | url=https://www.ibm.com/docs/en/flashsystem-7×00/8.6.0?topic=wnpn-worldwide-node-port-names | access-date=2025-11-10}}</ref> Used on [[storage area network]]s, it performs a function equivalent to the [[MAC address]] in [[Ethernet]] protocol, as it is supposed to be a unique identifier in the network.

In [[computing]], a ”’World Wide Port Name”’, ”’WWPN”’, or ”’WWpN”’, is a [[World Wide Name]] assigned to a port in a [[Fibre Channel fabric]].<ref name=”c901″>{{cite web | title=IBM Storage FlashSystem 7300 and 7200 | website=IBM | date=2025-02-28 | url=https://www.ibm.com/docs/en/flashsystem-7×00/8.6.0?topic=wnpn-worldwide-node-port-names | access-date=2025-11-10}}</ref> Used on [[storage area network]]s, it performs a function equivalent to the [[MAC address]] in [[Ethernet]] protocol, as it is supposed to be a unique identifier in the network.

A ”’WWPN”’ is a World Wide Port Name; a unique identifier for each Fibre Channel port presented to a Storage Area Network (SAN). Each port on a Storage Device has a unique and persistent WWPN.

A ”’WWPN”’ is a World Wide Port Name; a unique identifier for each Fibre Channel port presented to a Storage Area Network (SAN). Each port on a Storage Device has a unique and persistent WWPN.

A ”’World Wide Node Name”’, ”’WWNN”’, or ”’WWnN”’, is a [[World Wide Name]] assigned to a node (an endpoint, a device) in a Fibre Channel fabric. It is valid for the same WWNN to be seen on many different ports (different addresses) on the network, identifying the ports as multiple network interfaces of a single network node.

A ”’World Wide Node Name”’, ”’WWNN”’, or ”’WWnN”’, is a [[World Wide Name]] assigned to a node (an endpoint, a device) in a Fibre Channel fabric. It is valid for the same WWNN to be seen on many different ports (different addresses) on the network, identifying the ports as multiple network interfaces of a single network node.


Revision as of 12:01, 10 November 2025

Unique identifier in Fibre Channel fabric

In computing, a World Wide Port Name, WWPN, or WWpN, is a World Wide Name assigned to a port in a Fibre Channel fabric.[1] Used on storage area networks, it performs a function equivalent to the MAC address in Ethernet protocol, as it is supposed to be a unique identifier in the network.

A WWPN is a World Wide Port Name; a unique identifier for each Fibre Channel port presented to a Storage Area Network (SAN).[2] Each port on a Storage Device has a unique and persistent WWPN.

A World Wide Node Name, WWNN, or WWnN, is a World Wide Name assigned to a node (an endpoint, a device) in a Fibre Channel fabric. It is valid for the same WWNN to be seen on many different ports (different addresses) on the network, identifying the ports as multiple network interfaces of a single network node.

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