
114060 Rev. A 4-1
Chapter 4
Using Translation Bridge Services
This chapter contains
• An overview of the transparent-to-source routing translation bridge (referred
to as the translation bridge in this chapter)
• Implementation information you should know before you use the translation
bridge
• Instructions for operating the translation bridge
• Descriptions of translation bridge parameters and instructions for editing
those parameters
Translation Bridge Overview
One type of network uses a technique called source routing (SR) to bridge frames
across networks. In SR networks, the station that transmits a frame includes, as
part of the frame, the route that frame should traverse. The station learns the route
through a route-discovery process. (Refer to Chapter
2 for details on source
routing bridge services.)
Another type of network uses a technique called transparent bridging (TB) to link
networks. In a TB network, the bridge builds a database of node addresses to
determine when it should forward or drop frames; the endstations on TB networks
are not aware of forwarding routes. (Refer to Chapter
1 for details on transparent
bridge services.)
The translation bridge provides a method of bridging these two kinds of networks.
This allows endstations using different bridging techniques to communicate as
though they use the same bridging technique.
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