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Module 3: Spanning-Tree Protocol

Module Overview
3.1 Spanning-Tree Protocol Operation
3.1.1 STP concepts
3.1.2 Broadcast loops
3.1.3 Bridge-table corruption
3.1.4 Bridge priority
3.1.5 Path Cost
3.1.6 Port ID
3.2 STP Processes
3.2.1 STP decisions and BPDU exchanges
3.2.2 Three steps of STP convergence
3.2.3 Electing the root bridge
3.2.4 Electing root ports
3.2.5 Electing designated ports
3.2.6 STP states
3.2.7 STP timers
3.2.8 BPDU format
3.2.9 Topology changes and STP
3.3 STP Enhancements
3.3.1 Delay in STP updates
3.3.2 PortFast
3.3.3 UplinkFast
3.3.4 BackboneFast
3.4 802.1w Rapid Spanning-Tree Protocol
3.4.1 Rapid Spanning-Tree Protocol
3.4.2 RSTP states
3.4.3 RSTP port roles
3.4.4 RSTP timers
3.4.5 RSTP BPDU format
3.5 Evolution of Spanning Tree
3.5.1 PVST +
3.5.2 Enhanced PVST +
3.5.3 MST (802.1 s)
3.5.4 Load balancing
3.5.5 Switchport tuning using BPDU guard
3.5.6 Switchport tuning using root guard
3.6 STP Configuration
3.6.1 Default STP configuration 
3.6.2 Enabling and disabling Spanning-Tree Protocol 
3.6.3 Modifying the root bridge
3.6.4 Setting the priority for ports and VLANs
3.6.5 Setting the port cost
3.6.6 Configuring switch priority of a VLAN
3.6.7 Modifying default timers
3.7 Tuning, Verifying, and Troubleshooting Spanning-Tree Protocol
3.7.1 Configuring PortFast 
3.7.2 Configuring UplinkFast 
3.7.3 Configuring BackboneFast
3.7.4 Configuring BPDU guard
3.7.5 Configuring root guard
3.7.6 Configuring load balancing
3.7.7 Verifying STP, RSTP, and MTSP configuration
3.8 RSTP and MST Configuration
3.8.1 Default RSTP and MSTP configuration
3.8.2 RSTP and MSTP configuration guidelines
3.8.3 Enabling RSTP and MSTP
3.8.4 Configuring the MST root switch
3.8.5 Configuring MST switch priority
3.8.6 Configuring MST path cost
3.8.7 Configuring MST port priority
3.8.8 Configuring MSTP timers
3.8.9 Configuring maximum hop count
3.9 EtherChannel
3.9.1 EtherChannel explained 
3.9.2 Frame distribution 
3.9.3 EtherChannel methods
3.9.4 Port Aggregation Protocol (PAgP)
3.9.5 Link Aggregation Control Protocol (LACP)
3.9.6 Modifying port cost for EtherChannel groups
3.9.7 EtherChannel configuration guidelines
3.9.8 Configuring Fast EtherChannel
3.10 Hands-on Lab Exercises
3.10.1 STP default behavior 
3.10.2 Use network inspector to observe STP behavior
3.10.3 Advanced PVST+ configuration
3.10.4 Implementing MST
3.10.5 Configuring Fast EtherChannel
3.10.6 Per-VLAN spanning tree load balancing
3.10.7 Port level tuning to control STP behavior
Module Summary

Module Quiz

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