Bridging and Switching Basics (1)

• Bridges and switches divide networks into self-contained units; minimizing traffic

• Kinds of bridging

  • Transparent bridging - found in Ethernet environment
  • Source-route bridging - found in Token Ring environment
  • Translational bridging - translation between Ethernet and Token Ring media
  • Source-Route Transparent bridging - combines transparent and source-route bridging

• Bridges can filter frames based on: source, destination, upper-level protocols

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