Chapter 13

CHAPTER THIRTEEN Switching and VLANs

Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ethernet Operations ,[object Object],[object Object],[object Object],[object Object]

CSMA/CD ,[object Object],[object Object],[object Object],[object Object],[object Object]

Collisions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Collision Domain ,[object Object],[object Object],[object Object],[object Object]

Latency ,[object Object],[object Object],[object Object],[object Object],[object Object]

Latency Table 13-1: Propagation delay for Ethernet media and devices

Latency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ethernet Errors: Frame Size Errors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ethernet Errors: Frame Size Errors ,[object Object],[object Object],[object Object],[object Object]

Ethernet Errors: Collision Errors ,[object Object],[object Object],[object Object],[object Object]

Ethernet Errors: Broadcasts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Fast Ethernet ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Half- and Full-Duplex Communications ,[object Object],[object Object],[object Object],[object Object]

Half- and Full-Duplex Communications Figure 13-1: Half-duplex Ethernet communications

Half- and Full-Duplex Communications ,[object Object],[object Object],[object Object],[object Object],[object Object]

LAN Segmentation: Segmenting with Bridges ,[object Object],[object Object],[object Object],[object Object],[object Object]

When Segmenting a LAN with One or More Bridges, Note the Following ,[object Object],[object Object],[object Object],[object Object],[object Object]

LAN Segmentation: Segmenting with Routers ,[object Object],[object Object],[object Object],[object Object],[object Object]

When Segmenting a LAN with Routers, Routers Do the Following ,[object Object],[object Object],[object Object],[object Object],[object Object]

When Segmenting a LAN with Routers, Routers Do the Following ,[object Object],[object Object],[object Object],[object Object]

LAN Switching ,[object Object],[object Object],[object Object],[object Object],[object Object]

Segmentation with Switches ,[object Object],[object Object],[object Object],[object Object],[object Object]

Segmentation with Switches Figure 13-2: Switch packet forwarding actions

Segmentation with Switches Figure 13-3: Packet forwarding decisions made by a switch

Switch Operations ,[object Object],[object Object],[object Object],[object Object],[object Object]

Switch Operations ,[object Object],[object Object],[object Object],[object Object]

Securing Switch Ports ,[object Object],[object Object],[object Object],[object Object]

Switching Methods Figure 13-4: Catalyst 2820 switching menu

Cut-Through ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cut-Through Figure 13-5: Portion of packet read into buffer by a cut-through switch

Store-and-Forward Switches ,[object Object],Figure 13-6: Entire packet read into buffer by a store-and-forward switch

Fragment-Free Switching ,[object Object],[object Object],13-7: Amount of packet read into buffer by fragment-free switch

Adaptive Cut-Through and Changing the Switch Mode ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Spanning Tree Protocol ,[object Object],[object Object],[object Object],[object Object]

Spanning Tree Protocol Figure 13-8: Physical loop created on LAN by switches and bridges

Spanning Tree Protocol (STP) ,[object Object],[object Object],[object Object],[object Object]

Building a Logical Path ,[object Object],[object Object],[object Object],[object Object]

Building a Logical Path ,[object Object],[object Object],[object Object],[object Object],[object Object]

Port States ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Port States ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Virtual LAN ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Virtual LAN Figure 13-9: Broadcast domains on a LAN

Virtual LAN Figure 13-10: Broadcast domains using VLANs

Benefit of VLANs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Benefit of VLANs Figure 13-11: Securing servers with VLANs

Dynamic Versus Static VLANs ,[object Object],[object Object],[object Object],[object Object]

VLAN Standardization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Creating VLANs ,[object Object],[object Object],[object Object]

Link Types and Configuration ,[object Object],[object Object],[object Object],[object Object],[object Object]

Link Types and Configuration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Trunking Protocol ,[object Object],[object Object],[object Object],[object Object]

VTP Domains ,[object Object],[object Object],[object Object],[object Object]

VTP Device Modes ,[object Object],[object Object],[object Object],[object Object]

VTP Pruning ,[object Object],[object Object],[object Object],[object Object]

Switch Interface Descriptions ,[object Object],[object Object],[object Object]

Nonswitching Hubs and VLANs ,[object Object],[object Object],[object Object],[object Object]

Routers and VLANs Figure 13-12: Router implemented in a VLAN configuration

Chapter Summary ,[object Object],[object Object],[object Object],[object Object],[object Object]

Chapter Summary ,[object Object],[object Object],[object Object],[object Object]

Chapter Summary ,[object Object],[object Object],[object Object]

Chapter 13

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Chapter 13