13

Just wondering.

  • 2
    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
  • 1
    I Agree with Zoredache. Should stay open. – squillman Jul 6 '10 at 20:33
18

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

1

Layer 2.

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

0

Ethernet works at layer two and defines CSMA/CD.

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