RELATIONSHIPS OF ROUTE DISCOVERY TO BRIDGES AND ROUTERS
Many of the operations described in this chapter are applicable to both bridges and routers. But not all. First, a bridge operates only on LANs and has no concept of autonomous systems, and network addresses. The bridge certainly can be configured to operate a spanning tree, as we shall see in Chapter 4. Routers are even more flexible, and can perform integrated routing and bridging.
Integrated Routing and Bridging
Routers are capable of routing or bridging operations on separate interfaces in a router. A protocol, such as IP, can be routed between routed interfaces and a bridge link (or a group of links, called a bridge group). IP can also be routed between bridge groups. To provide flexibility ...
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