Chapter 8 - Internetworking and Management Overview
MAC-LEVEL BRIDGING AND SPANNING TREE PROTOCOL
The following sections describe the
About MAC-Level Bridging
A bridge moves information across an internetwork from a source to a destination at the link layer (of an OSI reference model). The information is sent to a physical address known as a Media Access Control (MAC) address.
The
About Spanning Tree Protocol
Spanning Tree protocol creates a logical topology to overlay a physical network. This overlay disables all loops in the data path. Enabling Spanning Tree ensures a unique, primary path from any node on a network to any other node. Also, if the primary path is lost, Spanning Tree creates a new primary path by enabling links in the physical network that were previously disabled in creating the active topology. The following figure shows an example of Spanning Tree.
124 |