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Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: Foundation learning for SWITCH 642-813 by Erum Frahim, Balaji Sivasubramanian, Richard Froom

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Chapter 3. Implementing Spanning Tree

High availability is a primary goal for enterprise networks that rely heavily on their multilayer switched network to conduct business. One method to ensure high availability is to provide Layer 2 redundancy of devices, modules, and links throughout the network. Network redundancy at Layer 2, however, introduces the potential for bridging loops, where packets loop endlessly between devices, crippling the network. The Spanning Tree Protocol identifies ...

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