MAC address

by bharathi 2010-02-16 10:05:56

In computer networking a Media Access Control address (MAC address) is a unique identifier attached to most forms of networking equipment. Most layer 2 network protocols use one of three numbering spaces managed by the IEEE: MAC-48, EUI-48, and EUI-64, which are designed to be globally unique. Not all communications protocols use MAC addresses, and not all protocols require globally unique identifiers. The IEEE claims trademarks on the names 'EUI-48' and 'EUI-64'. (The 'EUI' stands for Extended Unique Identifier.)

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