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Just wondering.

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Why is this being voted off-topic? A question about networking sure seems like it belongs on serverfault. – Zoredache Jul 6 '10 at 20:29
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I Agree with Zoredache. Should stay open. – squillman Jul 6 '10 at 20:33
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2 Answers

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Ethernet is a collection of specifications for layers 1 (PHY) and 2 (DLL).

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Layer 2.

http://en.wikipedia.org/wiki/OSI_model

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You missed layer 1. – Chris S♦ Jul 6 '10 at 18:57
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