Several different types of bridges are available for internetworking LANs. They are introduced in this section, and summarized in Table 4-1.

Table 4-1. Types of Bridges
Transparent basic bridge

Places incoming frame onto all outgoing ports except original incoming port

Source routing bridge

Relies on routing information in frame to relay the frame to an outgoing port

Transparent learning bridge

Stores the origin of a frame (from which port) and later uses this information to relay frames to that port

Transparent spanning bridge

Uses a subset of the LAN topology for a loop-free operation

The Transparent Basic Bridge

The simplest type of bridge is called the transparent basic bridge. This bridge receives traffic coming in on each port ...

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