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Chapter 13. Spanning Tree Protocol and EtherChannel

This chapter provides information and commands concerning the following topics:

  • Spanning-tree verification and troubleshooting

  • Change spanning-tree priority of a switch (version 12.0 and 12.1 of IOS)

  • Changing the cost of spanning tree on an interface

  • Changing the state of spanning tree on an interface

  • Spanning Tree Portfast BPDU Guard

  • EtherChannel configuration

  • Verification of EtherChannel

  • EtherChannel tips


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