World Wide Name

Article Index for
World Wide

Website Links For
World Wide

Information About

World Wide Name

There are two formats of WWN defined by the IEEE:

Original format: addresses are assigned to manufacturers by the IEEE standards committee, and are built into the device at build time, similar to Ethernet MAC Address . First 2 bytes are either hex 10:00 or 2x:xx (where the x's are vendor-specified) followed by the 3-byte vendor identifier and 3 bytes for a vendor-specified serial number

New addressing schema: first half-byte is either hex 5 or 6 followed by a 3-byte vendor identifier and 4 bytes and a half for a vendor-specified serial number

PORT ADDRESS

Domain ID: 1 Byte, represents the unique identifier of the switch itself. One byte allows 256 possible addresses, but because some of these are reserved only 239 addresses are actually available.

Area

Port

LIST OF A FEW WWN COMPANY IDENTIFIERS

00:60:69 Brocade Communications Systems

00:05:1E Brocade Communications Systems, formerly owned by Rhapsody Networks

00:60:DF CNT Technologies Corporation

00:50:76 IBM

08:00:88 McDATA Corporation

SEE ALSO

Fibre Channel

Switched Fabric

EXTERNAL LINKS

IEEE OUI list