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ernestlithur

This chapter discusses layer-2 switching and the Spanning Tree Protocol. Layer-2 switching provides hardware-based bridging to break up collision domains and learn hosts' locations via MAC tables, but can cause switching loops without STP. STP solves switching loops by selecting a root bridge and designating ports to block or forward traffic, putting ports into blocking, listening, forwarding, or disabled states.

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Instructor & Todd Lammle Sybex CCNA 640-802 Chapter 8: Layer-2 Switching
Chapter 8 Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Layer 2 Switching ,[object Object],[object Object],[object Object],[object Object],[object Object]
Before Layer 2 Switching
Switched LANs
Typical Switched Designs
One link to the server!
Switching Services ,[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations of Layer 2 Switching ,[object Object],[object Object],[object Object]
Bridging vs. LAN switching
Three Switch Functions at Layer-2
Empty MAC table
How Switches Learn Hosts’ Locations
Switching Loops
Switching Loop Problems
Spanning-Tree Protocol (STP) Solves Switching loops at layer 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Spanning-Tree Operations ,[object Object],[object Object]
Switching Loops
Spanning-Tree Port States ,[object Object],[object Object],[object Object],[object Object]
Spanning-Tree Example
Written Labs and Review Questions ,[object Object],[object Object]

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Chapter8ccna