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| Defining the Spanning Tree Protocol – STP |
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| Transparent bridges |
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| Identifying traffic loops |
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| Preventing loops in a layer 2 network |
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| The 802.1D Spanning Tree Protocol |
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| What is a root bridge? |
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| Identifying the root selection process |
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| 802.1D port roles |
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| Forming an association with the root bridge |
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| Example: determining the active topology |
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| Maintaining and Configuring STP |
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| Identifying Spanning Tree Port states and timers |
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| Identifying topology changes |
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| What is a backup root bridge? |
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| Priority commands |
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| How to configure a root bridge |
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| Comparing Common Spanning Tree and Per VLAN Spanning Tree – PVST |
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| Configuring PortFast |
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| What is PortFast? |
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| PortFast configuration commands |
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| How to configure PortFast |
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| Guarding Against Rogue STP Root Bridges |
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| Protecting Spanning Tree |
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| BPDU guard configuration commands |
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| BPDU filtering configuration commands |
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| What is root guard? |
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| Root guard configuration commands |
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| How to configure root guard |
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| Configuring UplinkFast |
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| What is a link fault? |
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| What is UplinkFast? |
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| UplinkFast configuration commands |
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| How to configure UplinkFast |
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| Configuring BackboneFast |
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| What are indirect link failures? |
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| What is BackboneFast? |
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| BackboneFast configuration commands |
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| How to configure BackboneFast |
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| Configuring EtherChannel |
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| What is EtherChannel? |
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| Port Aggregation Protocol – PAgP and Link Aggregation Control Protocol – LACP |
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| EtherChannel configuration commands |
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| Configuring port channels using EtherChannel |
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| Load balancing over Ethernet |
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| Guidelines and best practices for configuring EtherChannel |
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