Ethernet Switches

• Ethernet Hubs are Half Duplex

• Most Ethernet Switches are Full Duplex

  • No collisions are possible
  • So two stations can both transmit to each other at the same time (full duplex operation)
  • Requires full duplex switches
  • Requires full duplex NICs

• Lowest-cost LAN switches

• Not standardized, so buyers tend to get locked into a single vendor

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