Chapter 5: Spanning Tree Protocol (STP) and Redundant Links

Outline:

Chapter Review
Chapter Overview 
5.1 Basic STP Operations
5.1.1 Usefulness of STP
5.1.2 Broadcast loops
5.1.3 Bridge-table corruption
5.1.4 Bridge identification
5.1.5 Path cost
5.1.6 Four-step STP decision sequence
5.2 STP Processes
5.2.1 Three steps of initial STP convergence
5.2.2 Root-bridge elections
5.2.3 Electing root ports
5.2.4 Electing designated ports
5.2.5 Spanning-Tree port states
5.2.6 STP timers 
5.2.7 Topology changes and STP 
5.2.8 Spanning-Tree example
5.2.9 Enabling and verifying Spanning Tree
5.3 VLANs and STP
5.3.1 Per-VLAN STP
5.3.2 Common STP
5.3.3 Per-VLAN Spanning Tree plus (PVST+)
5.4 STP in the Campus Network
5.4.1 Establishing a root bridge
5.4.2 Determining the best loop-free path to the root bridge
5.4.3 Configure the port cost
5.4.4 Modifying port priority
5.4.5 Modifying port priority by VLAN
5.4.6 Modifying STP timers
5.5 Redundant Links
5.5.1 EtherChannel technology
5.5.2 Port aggregation protocol
5.5.3 EtherChannel rules of the road
5.5.4 Configuring fast EtherChannel
5.5.5 Configuring PortFast
5.5.6 Configuring UplinkFast
5.5.7 Configuring BackboneFast
Chapter Summary

Chapter Quiz