Chapter 2. Spanning Tree Protocol Implementation
This chapter covers the following exam topics:
LAN Switching Technologies
Configure and verify PVSTP operation
Describe root bridge election
Spanning-tree mode
Troubleshooting
Troubleshoot and resolve spanning-tree operation issues
Root switch
Priority
Mode is correct
Port states
Troubleshoot EtherChannel problems
Cisco LAN switches enable Spanning Tree Protocol (STP) by default on all interfaces in every VLAN. However, network engineers who work with medium-size to large-size Ethernet LANs usually want to configure at least some STP settings, with the goal of influencing the choices made by STP. For instance, a network engineer configures so that, when all switches and links work, the engineer ...
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