Cisco CCNA Routing and Switching ICND2 200-101 / Wendell Odom

Introduction ; Getting Started ; Part I LAN Switching ; Chapter 1 Spanning Tree Protocol Concepts ; "Do I Know This Already?" Quiz ; Foundation Topics ; LAN Switching Review ; LAN Switch Forwarding Logic ; Switch Verification ; Viewing the MAC Address Table ; Determining the VLAN of a Frame ; Verifying Trunks ; Spanning Tree Protocol (IEEE 802.1D) ; The Need for Spanning Tree ; What IEEE 802.1D Spanning Tree Does ; How Spanning Tree Works ; The STP Bridge ID and Hello BPDU ; Electing the Root Switch ; Choosing Each Switch's Root Port ; Choosing the Designated Port on Each LAN Segment ; Influencing and Changing the STP Topology ; Making Configuration Changes to Influence the STP Topology ; Reacting to State Changes That Affect the STP Topology ; How Switches React to Changes with STP ; Changing Interface States with STP ; Optional STP Features ; EtherChannel ; PortFast ; BPDU Guard ; Rapid STP (IEEE 802.1w) ; Exam Preparation Tasks ; Chapter 2 Spanning Tree Protocol Implementation ; "Do I Know This Already?" Quiz ; Foundation Topics ; STP Configuration and Verification ; Setting the STP Mode ; Connecting STP Concepts to STP Configuration Options ; Per-VLAN Configuration Settings ; The Bridge ID and System ID Extension ; Per-VLAN Port Costs ; STP Configuration Option Summary ; Verifying STP Operation ; Configuring STP Port Costs ; Configuring Priority to Influence the Root Election ; Configuring PortFast and BPDU Guard ; Configuring EtherChannel ; Configuring a Manual EtherChannel ; Configuring Dynamic EtherChannels ; STP Troubleshooting ; Determining the Root Switch ; Determining the Root Port on Nonroot Switches ; STP Tiebreakers When Choosing the Root Port ; Suggestions for Attacking Root Port Problems on the Exam ; Determining the Designated Port on Each LAN Segment ; Suggestions for Attacking Designated Port Problems on the Exam ; STP Convergence ; Troubleshooting EtherChannel ; Incorrect Options on the channel-group Command ; Configuration Checks Before Adding Interfaces to EtherChannels ; Exam Preparation Tasks ; Command Reference to Check Your Memory ; Chapter 3 Troubleshooting LAN Switching ; "Do I Know This Already?" Quiz ; Foundation Topics ; Generalized Troubleshooting Methodologies ; Analyzing and Predicting Normal Network Operation ; Data Plane Analysis ; Control Plane Analysis ; Predicting Normal Operations: Summary of the Process ; Problem Isolation ; Root Cause Analysis ; Real World Versus the Exams ; Troubleshooting the LAN Switching Data Plane ; An Overview of the Normal LAN Switch Forwarding Process ; Step 1 Confirm the Network Diagrams Using CDP ; Step 2 Isolate Interface Problems ; Interface Status Codes and Reasons for Nonworking States ; The notconnect State and Cabling Pinouts ; Determining Switch Interface Speed and Duplex ; Issues Related to Speed and Duplex ; Step 3 Isolate Filtering and Port Security Problems ; Step 4 Isolate VLAN and Trunking Problems ; Ensuring That the Right Access Interfaces Are in the Right VLANs ; Access VLANs Not Being Defined or Not Being Active ; Identify Trunks and VLANs Forwarded on Those Trunks ; Troubleshooting Examples and Exercises ; Troubleshooting Example 1: Find Existing LAN Data Plane Problems ; Step 1 Verify the Accuracy of the Diagram Using CDP ; Step 2 Check for Interface Problems.

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