Part I Overview and Design of a Campus Network
Chapter 1 Campus Network Overview
"Do I Know This Already?" Quiz
Foundation Topics
Switching Functionality
Layer 2 Switching
Layer 3 Routing
Layer 3 Switching
Layer 4 Switching
Multilayer Switching
Campus Network Models
Shared Network Model
LAN Segmentation Model
Network Traffic Models
Predictable Network Model
Hierarchical Network Design
Access Layer
Distribution Layer
Core Layer
Foundation Summary
Q&A
Chapter 2 Modular Network Design
"Do I Know This Already?" Quiz
Foundation Topics
Modular Network Design
Switch Block
Sizing a Switch Block
Core Block
Collapsed Core
Dual Core
Core Size in a Campus Network
Other Building Blocks
Server Farm Block
Network Management Block
Enterprise Edge Block
Service Provider Edge Block
Can I Use Layer 2 Distribution Switches?
Evaluating an Existing Network
Discovering the Network Topology
Migrating to a Hierarchical Design
Foundation Summary
Q&A
Part II Building a Campus Network
Chapter 3 Switch Operation
"Do I Know This Already?" Quiz
Foundation Topics
Layer 2 Switch Operation
Transparent Bridging
Follow That Frame!
Multilayer Switch Operation
Types of Multilayer Switching
Follow That Packet!
Multilayer Switching Exceptions
Tables Used in Switching
Content Addressable Memory
Ternary Content Addressable Memory
TCAM Structure
TCAM Example
Port Operations in TCAM
Troubleshooting Switching Tables
CAMTable Operation
TCAM Operation
Foundation Summary
Q&A
Chapter 4 Switch Configuration
"Do I Know This Already?" Quiz
Foundation Topics
Switch Management
Operating Systems
Identifying the Switch
Passwords and User Access
Password Recovery
Remote Access
Interswitch Communication: Cisco Discovery Protocol
Switch File Management
OS Image Files
Filename Conventions
Configuration Files
Other Catalyst Switch Files
Moving Catalyst Switch Files
Troubleshooting from the Operating System
Displaying Configuration and File Contents
Debugging Output
Viewing CDP Information
Foundation Summary
Q&A
Chapter 5 Switch Port Configuration
"Do I Know This Already?" Quiz
Foundation Topics
Ethernet Concepts
Ethernet (10 Mbps)
Fast Ethernet
Full-Duplex Fast Ethernet
Gigabit Ethernet
10-Gigabit Ethernet
Connecting Switch Block Devices
ConsolePortCables/Connectors
EthernetPortCables and Connectors
GigabitEthernet PortCables and Connectors
Switch Port Configuration
Selecting Ports to Configure
Identifying Ports
Port Speed
Port Duplex Mode
Managing Error Conditions on a Switch Port
Detecting Error Conditions
Automatically Recover from Error Conditions
Enable and Use the Switch Port
Troubleshooting Port Connectivity
Looking for the Port State
Looking for Speed and Duplex Mismatches
Foundation Summary
Q&A
Chapter 6 VLANs and Trunks
"Do I Know This Already?" Quiz
Foundation Topics
Virtual LANs
VLAN Membership
Static VLANs
Configuring Static VLANs
Dynamic VLANs
Deploying VLANs
End-to-End VLANs
Local VLANs
VLAN Trunks
VLAN Frame Identification
Inter-Switch Link Protocol
IEEE 802.1Q Protocol
Dynamic Trunking Protocol
VLAN Trunk Configuration
VLAN Trunk Configuration
Trunk Configuration Example
Troubleshooting VLANs and Trunks
Foundation Summary
Q&A
Chapter 7 VLAN Trunking Protocol
"Do I Know This Already?" Quiz
Foundation Topics
VLAN Trunking Protocol
VTP Domains
VTP Modes
VTP Advertisements
VTP Configuration
Configuring a VTP Management Domain
Configuring the VTP Mode
Configuring the VTP Version
VTP Configuration Example
VTP Status
VTP Pruning
Enabling VTP Pruning
Troubleshooting VTP
Foundation Summary
Q&A
Chapter 8 Aggregating Switch Links
"Do I Know This Already?" Quiz
Foundation Topics
Switch Port Aggregation with EtherChannel
Bundling Ports with EtherChannel
Distributing Traffic in EtherChannel
Configuring EtherChannel Load Balancing
EtherChannel Negotiation Protocols
Port Aggregation Protocol
Link Aggregation Control Protocol
EtherChannel Configuration
Configuring a PAgP EtherChannel
Configuring a LACP EtherChannel
Troubleshooting an EtherChannel
Foundation Summary
Q&A
Chapter 9 Traditional Spanning Tree Protocol
"Do I Know This Already?" Quiz
Foundation Topics
IEEE 802.1D Overview
Bridging Loops
Preventing Loops with Spanning Tree Protocol
Spanning-Tree Communication: Bridge Protocol Data Units
Electing a Root Bridge
Electing Root Ports
Electing Designated Ports
STP States
STP Timers
Topology Changes
Direct Topology Changes
Indirect Topology Changes
Insignificant Topology Changes
Types of STP
Common Spanning Tree
Per-VLAN Spanning Tree
Per-VLAN Spanning Tree Plus
Foundation Summary
Q&A
Chapter 10 Spanning Tree Configuration
"Do I Know This Already?" Quiz
Foundation Topics
STP Root Bridge
RootBridgePlacement
RootBridgeConfiguration
Spanning-Tree Customization
Tuning the Root Path Cost
Tuning the Port ID
Tuning Spanning-Tree Convergence
Modifying STP Timers
Manually Configuring STP Timers
Automatically Configuring STP Timers
Redundant Link Convergence
PortFast: Access-Layer Nodes
UplinkFast: Access-Layer Uplinks
BackboneFast: Redundant Backbone Paths
Troubleshooting STP
Foundation Summary
Q&A
Chapter 11 Protecting the Spanning Tree Protocol Topology
"Do I Know This Already?" Quiz
Foundation Topics
Protecting Against Unexpected BPDUs
Root Guard
BPDU Guard
Protecting Against Sudden Loss of BPDUs
LoopGuard
UDLD
Using BPDU Filtering to Disable STP on a Port
Troubleshooting STP Protection
Foundation Summary
Q&A
Chaptere 12 Advanced Spanning Tree Protocol
"Do I Know This Already?" Quiz
Foundation Topics
Rapid Spanning Tree Protocol
RSTPPortBehavior
BPDUs in RSTP
RSTP Convergence
Port Types
Synchronization
Topology Changes and RSTP
RSTP Configuration
Rapid Per-VLAN Spanning Tree Protocol
Multiple Spanning Tree Protocol
MST Overview
MST Regions
Spanning Tree Instances Within MST
IST Instances
MST Instances
MST Configuration
Foundation Summary
Q&A
Part III Layer 3 Switching
Chapter 13 Multilayer Switching
"Do I Know This Already?" Quiz
Foundation Topics
InterVLAN Routing
Types of Interfaces
Configuring InterVLAN Routing
Layer 2 Port Configuration
Layer 3 Port Configuration
SVI Port Configuration
Multilayer Switching with CEF
Traditional MLS Overview
CEF Overview
Forwarding Information Base
Adjacency Table
Packet Rewrite
Configuring CEF
Fallback Bridging
Verifying Multilayer Switching
Verifying InterVLAN Routing
Verifying CEF
Verifying Fallback Bridging
Foundation Summary
Q&A
Chapter 14 Router, Supervisor, and Power Redundancy
"Do I Know This Already?" Quiz
Foundation Topics
Router Redundancy in Multilayer Switching
Packet Forwarding Review
Hot Standby Router Protocol
HSRP Router Election
Conceding the Election
HSRP Gateway Addressing
Load Balancing with HSRP
Virtual Router Redundancy Protocol
Gateway Load Balancing Protocol
Active Virtual Gateway
Active Virtual Forwarder
GLBP Load Balancing
Enabling GLBP
Verifying Gateway Redundancy
Redundancy Within a Switch Chassis
Redundant Switch Supervisors
Configuring the Redundancy Mode
Configuring Supervisor Synchronization
Non-Stop Forwarding
Redundant Power Supplies
Foundation Summary
Q&A
Chapter 15 IP Multicast
"Do I Know This Already?" Quiz
Foundation Topics
Multicast Overview
Multicast Addressing
Routing Multicast Traffic
Multicast Trees
Reverse Path Forwarding
IGMP
IGMPv1
IGMPv2
IGMPv3
PIM
PIM Dense Mode
PIM Sparse Mode
PIM Sparse-Dense Mode
PIM Version 1
PIM Version 2
Switching Multicast Traffic
IGMP Snooping
CGMP
Verifying Multicast Routing and Switching
Multicast Routing with PIM
Multicast Switching
What Would Happen Without a Multicast Router?
Foundation Summary
Q&A
Part IV Campus Network Services
Chapter 16 IP Telephony
"Do I Know This Already?" Quiz
Foundation Topics
Power over Ethernet (PoE)
How Power over Ethernet Works
Detecting a Powered Device
Supplying Power to a Device
Configuring Power over Ethernet
Verifying Power over Ethernet
Voice VLANs
Voice VLAN Configuration
Verifying Voice VLAN Operation
Voice QoS
QoS Overview
Best-Effort Delivery
Integrated Services Model
Differentiated Services Model
DiffServ QoS
Layer 2 QoS Classification
Layer 3 QoS Classification with DSCP
Implementing QoS for Voice
Configuring a Trust Boundary
Verifying Voice QoS
Foundation Summary
Q&A
Chapter 17 Securing Switch Access
"Do I Know This Already?" Quiz
Foundation Topics
Switch AAA
Authentication
Authorization
Accounting
Port Security
Port-Based Authentication
802.1x Configuration
Mitigating Spoofing Attacks
DHCP Snooping
Dynamic ARP Inspection
Best Practices for Securing Switches
Foundation Summary
Q&A
Chapter 18 Securing with VLANs
"Do I Know This Already?" Quiz
Foundation Topics
VLAN Access Lists
VACL Configuration
Private VLANs
Private VLAN Configuration
Configure the Private VLANs
Associate Ports with Private VLANs
Associate Secondary VLANs to a Primary VLAN SVI
Securing VLAN Trunks
Switch Spoofing
VLAN Hopping
Switch Port Monitoring
Local SPAN and VSPAN
Local SPAN and VSPAN Configuration
Remote SPAN
Remote SPAN Configuration
Foundation Summary
Q&A
Part V Scenarios for Final Preparation
Chapter 19 Scenarios for Final Preparation
Scenario 1: Trunking and DTP
Scenario 2: VLANs, Trunking, and VTP
Scenario 3: EtherChannels
Scenario 4: Traditional STP
Scenario 5: Advanced STP
Scenario 6: Router Redundancy with HSRP and GLBP
Scenario 7: Multicast
Scenario 8: IP Telephony in a Switched Network
Scenario 9: Securing Access and Managing Traffic in a Switched Network
Scenario Answers
Scenario 1 Answers
Scenario 2 Answers
Scenario 3 Answers
Scenario 4 Answers
Scenario 5 Answers
Scenario 6 Answers
Scenario 7 Answers
Scenario 8 Answers
Scenario 9 Answers
Part VI Appendix
Answers to Chapter "Do I Know This Already?" Quizzes and Q&A Sections