• link aggregation
  • Ethernet in the first mile (EFM)

Frame format (802.3 Ethernet II)

Ethernet frame (64–1518 bytes)
(Data link layer)
Ethernet packet (72–1526 bytes)
(Physical layer)
PreambleMAC headerPayloadFCS
Dest addrSrc addrEtherType
8 (bytes)66246-15004