What is WWNN WWPN WWN?

World Wide Name (WWN)
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CONTEXT [Fibre Channel]

1. A 64-bit unsigned Name_Identifier which is worldwide unique. cf. Fibre Channel Name
2. A unique 64 bit number assigned by a recognized naming authority (often via block assignment to a manufacturer) that identifies a node process or node port. See WWNN and WWPN. Abbreviated WWN. A WWN is assigned for the life of a connection (device). Most networking physical transport network technologies use a world wide unique identifier convention. For example, the Ethernet Media Access Control Identifier, often referred to as the MAC address.

World Wide Node Name (WWNN)
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CONTEXT [Fibre Channel]

A globally unique 64-bit identifier assigned to each Fibre Channel node process.

World Wide Port Name (WWPN)
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CONTEXT [Fibre Channel]

A globally unique 64-bit identifier assigned to each Fibre Channel port. Fibre Channel ports’ WWPN are permitted to use any of several naming authorities. Fibre Channel specifies a Network Address Authority (NAA) to distinguish between the various name registration authorities that may be used to identify the WWPN.

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