Ethernet - 10 Mbps (2)

• Differences between Ethernet and IEEE 802.3

  • Ethernet defines services corresponding to Layer 1 and 2 of the OSI RM; defines one physical layer (thick coax)
  • IEEE 802.3 specifies physical layer (Layer 1) and channel access portion of the link layer (Layer 2); defines a few physical layers: 10base5, 10base2, 10baseT, 10baseFL
  • Ethernet and IEEE 802.3 frame formats

• IEEE 802.3 Physical Layer (i.e. 10base5)

  • 10 : LAN speed in Mbps
  • base : baseband, signaling method
  • 5 : physical media type

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