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  • 1.  What is WWN and WWPN number??

    Posted May 28, 2012 03:47 PM

    Dear VMware Experts,

    Need to know   What is WWN and WWPN number?? and the difference between these two ?

    Regards

    Mr VMware



  • 2.  RE: What is WWN and WWPN number??

    Posted May 28, 2012 05:16 PM

    WWN - World Wide Name is a unique identifiers on a Fiber Channel nettwork similar to the MAC address of an ethernet network-

    WWPN - World Wide Port Name is another name for the WWN assigned to the port on FC fabrice

    and to add -

    WWNN - World Wide Node Name is a WWN assigned to a node (an endpoint or device_ on the FC Fabric -



  • 3.  RE: What is WWN and WWPN number??

    Posted Jun 04, 2012 05:21 AM

    Hi,

    What is WWN and WWPN number??

    In Fibre Channel networks,

    A WWN may be used as a WWNN (World Wide Node Name) to identify a switch,
    A WWPN (World Wide Port Name) to identify an individual port on a switch



  • 4.  RE: What is WWN and WWPN number??

    Posted Jun 06, 2012 04:55 AM

    Hi,

    A WWPN (World Wide Port Name) is physically assigned to a part in a Fibre Channel device, such as a FC HBA or SAN. It is the equivalent of the MAC address in the Ethernet protocol as it is supposed to be a unique identifier in the netwok.

    The WWN’s are administred by the IEEE like the MAC Address is. The first few octets are assigned to a manafacturer, the rest is arbitrary.


    The difference between a node WWN (WWNN), is it can be shared by some or all ports of a device, and a port WWN (WWPN), is one which is necessarily unique to each port.