Bits determining type of MAC addresses?
shanparames
Member Posts: 103 ■■■□□□□□□□
in CCNA & CCENT
Hi
In the 6th edition of Todd Lammle book, in chapter 1 of Ethernet Networking, about ethernet MAC addresses, it is mentioned that the high-order bit represents the Individual/Group bit (47) & for Global/local bit is 46th bit of the MAC ADDRESS's OUI .
The figure which I pasted is from wikipedia.It is saying that the LSB of the most significant byte of the MAC represents the I/G & G/L
Which is correct?
Please provide me the clarification
In the 6th edition of Todd Lammle book, in chapter 1 of Ethernet Networking, about ethernet MAC addresses, it is mentioned that the high-order bit represents the Individual/Group bit (47) & for Global/local bit is 46th bit of the MAC ADDRESS's OUI .
The figure which I pasted is from wikipedia.It is saying that the LSB of the most significant byte of the MAC represents the I/G & G/L
Which is correct?
Please provide me the clarification
Thanks
Comments
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JDMurray Admin Posts: 13,023 AdminLammle is correct and the Wikipedia image is wrong.
When in doubt, the IEEE is the definitive authority on all things MAC related.
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