Think your`re an networking ethernet guru ? tcpdump kung fu master? eat jumbo packets for breakfast? Then welcome to the "Layer 1" dungeon, forget everything you know. We are talking about transceiver, clock recovery, DC balance, encoding symbol sets, scrambling, lane skew and more. For 10G, 40G and 100G networks you will be surprised that, what data you think is going down the wire, is actually a completely different set of 1`s and 0`s in the cable.
Lets start with the basic building blocks of a 10G ethernet system. The diagram above maps out the major components in english (not 802.3 clause 49 legalize).