Basic HTML version of Foils prepared Dec. 6 98

Foil 5 Bridging and Switching Basics (2)

From Introduction to Network Security Lectures at Xi'an Jaotong University -- Sept 1998. by Roman Markowski
1 Types of bridges
  • local and remote
  • MAC-layer bridges (Media Access Control) - bridge between homogeneous networks
  • LLC-layer bridges (Logical Link Control) - can bridge between for example Ethernet and Token Ring
2 Switching - replace bridges and complements routers
3 Switches
  • are faster because they switch in hardware based on MAC addresses
  • support higher port densities than bridges
  • reduce collisions (provide dedicated bandwidth)
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