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For example! I want to design a system for Ethernet. How to do this?
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If you haven't noticed yet, you haven't asked a specific question that can be answered. Simply stating that you want to design something and asking someone how to do this won't solicit much help. Stating that something is 'abstract', but not asking specifically about something that you are confused about will again not solicit much help.
Give some thought to just what it is that you're confused about, and then ask a question directed towards whatever that confusion is and you'll likely receive a more informative reply.
Kevin Jennings
Honored Contributor
