Chapter 28. Mixed-Media Bridging

Objectives

  • Understand bridging in a mixed Ethernet and Token Ring environment.

  • Describe the differences between source-route transparent and translational bridging.

  • List some of the challenges of translational bridging.

Background

Transparent bridges are found predominantly in Ethernet networks, and source-route bridges (SRBs) are found almost exclusively in Token Ring networks. Both transparent bridges and SRBs are popular, so it is reasonable to ask whether a method exists to directly bridge between them. Several solutions have evolved.

Translational bridging provides a relatively inexpensive solution to some of the many problems involved with bridging between transparent bridging and SRB domains. Translational bridging ...

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