XV CSMA/CD Frames
While CSMA/CD is the most popular type of Ethernet in use today, it is not the only one. For reasons beyond the scope of this work, Novell used 802.2 up through Version 3.11. When Version 3.12 came out, they switched to 802.3 Technically, 802.3 is NOT Ethernet. And this is what most people mean when they refer to Ethernet. To compound the issue, both standards can co-exist however don't have to inter-operate!
For example, NT4 by default runs in Auto. It will accept anything looking like a signal. And once it finds a 'type of Ethernet' it locks on, ignoring all others. An administrator must specifically configure NT to accept the other types of signals. The actual signal from many standpoints is identical. It is only when looking at the logical order within a hunk of data (known as a frame) that the differences are seen.
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