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Authorized Self-Study Guide Building Cisco Multilayer Switched Networks (BCMSN)

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Building Cisco Multilayer Switched Networks (BCMSN)

Fourth Edition

Foundation learning for CCNP 642-812 BCMSN

Richard Froom, CCIE® No. 5102

Balaji Sivasubramanian

Erum Frahim, CCIE No. 7549

Authorized Self-Study Guide: Building Cisco Multilayer Switched Networks (BCMSN), Fourth Edition, is a Cisco® authorized, self-paced learning tool for CCNP® switching foundation learning. You will learn how to create scalable multilayer switched networks by installing, configuring, monitoring, and troubleshooting network infrastructure equipment for a campus switched network and integrate advanced technologies such as VoIP and wireless.

This comprehensive book provides detailed information and easy-to-grasp tutorials on advanced skills in design, configuration, operation, and troubleshooting of enterprise level switched networks, including converged IP data, voice, and Airespace wireless LAN (WLAN) connectivity. The book assumes only a basic understanding of networking so it provides a great deal of detail on the topics covered.

This book is ideal for certification candidates who are seeking a self-paced tool to learn the material covered in the latest BCMSN exam.

Each chapter opens with the list of topics covered to clearly identify the focus of that chapter. At the end of each chapter, Study Tips list the main points related to the BCMSN exam. A summary of key concepts for quick study and review questions provide you with an opportunity to assess and reinforce your understanding of the material. Real-world case studies help illuminate theoretical concepts.

In addition, chapters that cover Catalyst configurations also include configuration exercises. Most of these are small-scale exercises that can be performed on a single switch. The goal of using small-scale exercises is to enable network professionals to practice the configuration exercises with only a single switch.

Richard Froom, CCIE® No. 5102, is a technical leader for the Data Center, Switching and Wireless (DSW), and Storage Area Networking (SAN) Test Lab at Cisco.

Balaji Sivasubramanian, CCNP, is an escalation engineer for the Gigabit Switching Business Unit (GSBU) at Cisco.

Erum Frahim, CCIE No. 7549, is a senior support engineer working for the Data Center, DSW, and SAN Test Lab at Cisco.

  • Provides a thorough introduction to campus switched network construction, support, and security

  • Explains the fundamentals of multilayer switched network design and specific design features such as Spanning Tree Protocol, quality of service (QoS), and high availability

  • Covers virtual LAN (VLAN) and InterVLAN Routing implementation

  • Incorporates wireless client access and configuring campus switches to support voice technologies

  • Uses extensive configuration examples and diagrams to solidify the explanations of topics

  • Presents self-assessment review questions, configuration exercises, chapter objectives and summaries, and study tips to ensure information recall

  • Foreword

    Introduction

    Chapter 1 Introduction to Building Cisco Multilayer Switched Networks
    Chapter 2 The Roles of Switches in Designing Cisco Multilayer Switched Networks

    Chapter 3 Initial Configuration and Troubleshooting of Cisco Multilayer Switches  

    Chapter 4 Implementing and Configuring VLANs

    Chapter 5 Understanding and Configuring the 802.1D, 802.1s, and 802.1w Spanning Tree 

    Chapter 6 Adding Resiliency to Spanning Tree Using Advanced Features and Troubleshooting STP Issues

    Chapter 7 Enhancing Network Stability, Functionality, Reliability, and Performance Using Advanced Features  

    Chapter 8 Understanding and Configuring Inter-VLAN Routing

    Chapter 9 Understanding and Configuring Multilayer Switching  

    Chapter 10 Understanding and Implementing Quality of Service in Cisco Multilayer Switched Networks

    Chapter 11 Deploying Multicast in the Multilayer Switched Network

    Chapter 12 Design Network Resiliency, Redundancy, and High Availability in Multilayer Switched Networks

    Chapter 13 Best Practices for Deploying Cisco IP Telephony Using Cisco Catalyst Switches

    Chapter 14 Securing Your Multilayer Switched Network to Minimize Service Loss and Data Theft

    Chapter 15 Introduction to the Catalyst Switching Architectures

    Chapter 16  Designing, Building, and Connecting Cisco Multilayer Switched Networks Using Metro Solutions

    Chapter 17 Performance and Connectivity Troubleshooting Tools for Multilayer Switches

    Chapter 18 Introducing Wireless into the Campus Network

    Review Questions

    Appendix A

    Answers to Review Questions

    Index

     


    This volume is in the Certification Self-Study Series offered by Cisco Press®. Books in this series provide officially developed self-study solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations.

    Category: Cisco Certification

    Covers: CCNP BCMSN Exam 642-812

    $65.00 USA / $81.00 CAN

    Table of Contents

    1. Copyright
      1. Dedications
    2. About the Authors
    3. About the Contributing Author
    4. About the Technical Reviewers
    5. Acknowledgments
    6. Icons Used in This Book
    7. Command Syntax Conventions
    8. Foreword
    9. Introduction
      1. Goals and Purpose
      2. Who Should Read This Book?
      3. Methods
      4. How to Read This Book
      5. How This Book Is Organized
    10. 1. Introduction to Building Cisco Multilayer Switched Networks
      1. Regulatory Standards Driving Enterprise Architectures
      2. Hardware- and Software-Switching Terminology
      3. Multilayer Switching Overview
        1. Understanding Layers 2, 3, 4, and 7 Switching Terminology
          1. Layer 2 Switching
          2. Layer 3 Switching
          3. Layer 4 Switching
          4. Layer 7 Switching
        2. Layer 2 Switching in Depth
        3. Layer 3 Switching In-Depth
        4. Multilayer Switching
      4. Enterprise Network Architectures
        1. Cisco Service-Oriented Network Architecture
          1. Three Layers of Cisco SONA
        2. Cisco Intelligent Information Network
        3. The Cisco AVVID Framework
        4. Purpose of Layer 3 Networks
        5. The Enterprise Models
        6. Enterprise Composite Network Model
        7. Enterprise Campus
          1. Enterprise Campus Infrastructure
            1. Building Access, Building Distribution, and Campus Backbone Submodules
            2. Network Management, Data Center, and Edge Distribution Submodules
          2. How Enterprise Campus Modules Meet the Needs of Enterprise Networks
        8. Enterprise Edge
          1. E-Commerce Module
          2. Internet Connectivity Module
          3. Remote Access and VPN Module
          4. WAN Module
        9. Service Provider Edge
          1. ISP Module
          2. PSTN Module
          3. Frame Relay, ATM, and PPP Module
        10. The Cisco Enterprise Data Center
          1. Server Fabrics
          2. Storage Area Networks/Fabrics
          3. Data Center Interconnect
          4. Access Network
      5. Introducing the Cisco Catalyst Switches
        1. Catalyst 6500 Family of Switches
        2. Catalyst 4500 and 4900 Families of Switches
        3. Catalyst 3560 Family of Switches
        4. Catalyst 2960 Family of Switches
      6. Study Tips
      7. Summary
      8. Review Questions
    11. 2. The Roles of Switches in Designing Cisco Multilayer Switched Networks
      1. Data Link Technologies
        1. 10-Mbps Ethernet
        2. Fast Ethernet
        3. Gigabit Ethernet
        4. Fast Ethernet and Gigabit Ethernet Auto-Negotiation
        5. 10-Gigabit Ethernet
        6. Gigabit Interface Converters
        7. Cisco Long-Reach Ethernet
        8. Metro Ethernet
      2. Designing Cisco Multilayer Switched Networks Using the Cisco Catalyst Switches and Data Link Technologies
        1. Reviewing the Campus Infrastructure Module of the Enterprise Composite Network Model
        2. Selecting Layer 2 or Layer 3 Switches
        3. Small Campus Network Design
        4. Medium-Sized Campus Network Design
        5. Large Campus Network Design
        6. Data Center
          1. Data Center Infrastructure Architecture
        7. Enterprise Edge
      3. Case Study: Designing a Cisco Multilayer Switched Campus Network
      4. Study Tips
      5. Summary
      6. Review Questions
    12. 3. Initial Configuration and Troubleshooting of Cisco Multilayer Switches
      1. Comparing Cisco CatOS and Cisco IOS
      2. Initial Configuration of Management Parameters of Cisco Catalyst Switches
        1. System Name
        2. Management IP Configuration
        3. Clock and NTP Settings
        4. Telnet and SSH
        5. DNS
        6. System Logging
        7. SNMP
          1. SNMP Configuration
      3. Managing Catalyst Switch Configurations
      4. Understanding the Cisco IOS File System (IFS) and Software Images on Catalyst Switches
        1. Determining the IFS Size and Contents
        2. Cisco IOS Image Naming
          1. Naming Conventions Used by Hybrid and Cisco IOS Images on the Catalyst 6500 Family of Switches
      5. Upgrading Software Versions on Catalyst Switches
      6. Overview of Converting Cisco CatOS to Cisco Native IOS
      7. Basic Troubleshooting Practices
        1. show and debug Commands
        2. Configurations and Commands Useful When Troubleshooting
        3. The Impact of debug Commands and Recommended Use
      8. Initial Configuration Troubleshooting Tips
        1. What to Do When You Are Unable to Connect to the Switch via the Console Port
        2. What to Do When You Are Unable to Establish IP Connectivity to or from a Switch Using Telnet or SSH
      9. Study Tips
      10. Summary
      11. Configuration Exercise: Configuring a Cisco IOS–Based Catalyst Switch
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Establish Console (Out-of-Band) Connectivity and Configure the Switch Name
        6. Task 2: Configure the Switch for IP Connectivity
        7. Task 3: Configure the Switch Usernames and Passwords for Privileged and In-Band Access
        8. Task 4: Configure the Switch for SSH and Disable Telnet Access
        9. Task 5: Configure the Switch Time Settings, NTP Configuration, and System Logging Configuration
        10. Task 6: Upgrade the Switch Cisco IOS Version to a Later Release
      12. Review Questions
    13. 4. Implementing and Configuring VLANs
      1. VLANs
        1. Implementing VLANs in Multilayer Switched Networks
          1. Understanding the Role and Benefits of VLANs in the Multilayer Switched Network Design
          2. Benefits of End-to-End and Local VLANs in Campus Networks
        2. Mapping VLANs to a Hierarchical Network
        3. Static and Dynamic VLANs
        4. VLAN Ranges
        5. Configuring VLANs
          1. Understanding the VLAN Configuration Modes in Cisco IOS
          2. Configuring VLANs in Cisco CatOS
        6. Verifying the VLAN Configuration
        7. Troubleshooting VLANs
          1. Troubleshooting Slow Throughput
          2. Troubleshooting Communication Issues
      2. Private VLANs
        1. Configuring PVLANs in Cisco IOS
        2. Configuring pVLANs in Cisco/CatOS
      3. VLAN Trunking
        1. Implementing Trunking in Multilayer Switched Networks
        2. Trunking Protocols
          1. ISL
          2. IEEE 802.1Q
          3. Understanding Native VLAN in 802.1Q Trunking
        3. Understanding DTP
        4. VLAN Ranges and Mappings
        5. Service Provider–Managed VLAN Services
        6. Cisco Trunking Modes and Methods
        7. Configuring ISL and 802.1Q Trunking in Cisco IOS
        8. Configuring VLAN Trunking in Cisco CatOS
        9. Verifying Trunking Configurations
        10. Troubleshooting Trunking
      4. VLAN Trunking Protocol
        1. VTP Pruning
        2. VTP Versions
          1. VTP Versions 1 and 2
          2. VTP Version 3
        3. VTP Authentication
        4. Configuring VTP
          1. Configuring VTP in Cisco IOS
          2. Configuring VTP in Cisco CatOS
        5. Verifying the VTP Configuration
        6. Troubleshooting VTP
      5. Case Study: Troubleshooting VLAN/Trunking Issues Across the Switches
      6. Study Tips
      7. Summary
      8. Configuration Exercise: Configuring VLAN, Trunking, and VTP in Multilayer Switched Networks
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Create a VTP Management Domain
        6. Task 2: Configure Trunking
        7. Task 3: Configure VLANs
        8. Task 4: Assign VLANs with Ports on Your Switch
        9. Task 5: Add a New Switch to the Existing Network
        10. Task 6: Verify the VLAN and VTP Status
        11. Task 7: Configure pVLANs
      9. Review Questions
    14. 5. Understanding and Configuring the 802.1D, 802.1s, and 802.1w Spanning Tree Protocols
      1. Overview of the Spanning Tree Protocol
      2. Identifying Bridging Loops
        1. Preventing Bridging Loops
        2. Building Loop-Free Networks
      3. STP (IEEE 802.1D)
        1. Bridge Identifier
        2. Spanning-Tree Path Cost
        3. Bridge Protocol Data Units
        4. Spanning-Tree Port States and BPDU Timers
      4. STP Operation
        1. Root Bridge Election
        2. Planning Root Bridge Selection
        3. Selection of Root and Designated Port on Nonroot Bridges
        4. Understanding Primary and Backup Root Bridges
      5. Sample Scenario of STP Election Process
      6. STP Topology Changes
      7. Per VLAN Spanning Tree Plus
        1. MAC Address Allocation and Reduction
      8. STP and IEEE 802.1Q Trunks
      9. Configuring the Basic Parameters of PVST+
        1. Configuring the Root Bridge
        2. Configuring Port Cost
      10. Verifying the STP Configuration
      11. Rapid Spanning Tree Protocol
        1. RSTP Port States
        2. RSTP Port Roles
        3. RSTP BPDU Format and BPDU Handling
        4. Rapid Transition to Forwarding
        5. RSTP Topology Change Mechanism
        6. Compatibility with 802.1D
      12. Multiple Spanning Tree
        1. PVST+ Case
        2. 802.1Q Case
        3. MST Case
        4. MST Regions
        5. IST Instances
        6. MST Instances
      13. Configuring Basic Parameters of MST
      14. Study Tips
      15. Summary
      16. Configuration Exercise: Configuring and Verifying Spanning-Tree Bridge Priorities and Spanning-Tree Port Cost
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Configure and Verify Spanning Tree Root and Backup Bridges and STP Priorities
        6. Task 2: Configure and Verify Spanning Tree Port Cost
        7. Task 3: Identifying STP Topology Changes
      17. Review Questions
    15. 6. Adding Resiliency to Spanning Tree Using Advanced Features and Troubleshooting STP Issues
      1. Enhancements to 802.1D Spanning Tree Protocol
        1. PortFast
          1. Configuring the PortFast Feature
        2. UplinkFast
          1. Configuration and Verification of UplinkFast
        3. BackboneFast
          1. Configuration and Verification of BackboneFast
      2. Improving Spanning-Tree Resiliency
        1. BPDU Guard
        2. BPDU Filtering
        3. Root Guard
      3. Preventing Forwarding Loops and Black Holes
        1. Loop Guard
        2. Comparison Between Aggressive Mode UDLD and Loop Guard
      4. Troubleshooting STP
        1. Potential STP Problems
          1. Duplex Mismatch
          2. Unidirectional Link Failure
          3. Frame Corruption
          4. Resource Errors
          5. PortFast Configuration Error
          6. Inappropriate STP Diameter Parameter Tuning
        2. Troubleshooting Methodology for STP Problems
        3. Know the Network
        4. Identify a Bridging Loop
        5. Restore Connectivity
        6. Check Port Status
        7. Look for Resource Errors
        8. Disable Unneeded Features
      5. Study Tips
      6. Summary
      7. Configuration Exercise: Configuring BackboneFast, UplinkFast, Root Guard, and PortFast
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Configure and Verify BackboneFast
        6. Task 2: Configure and Verify UplinkFast
        7. Task 3: Configure and Verify Root Guard
        8. Task 4: Configure and Verify PortFast
      8. Configuration Exercise: Identify and Resolve a Layer 2 Loop
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Identifying the Layer 2 Loop
        6. Task 2: Divide and Conquer (Disconnect Redundancy)
        7. Task 3: Find Root Cause of Layer 2 Loop (Investigate Network and Hardware)
        8. Task 4 (optional): Check Software Statistics
      9. Review Questions
    16. 7. Enhancing Network Stability, Functionality, Reliability, and Performance Using Advanced Features
      1. EtherChannel
        1. PAgP Modes
        2. LACP Modes
        3. EtherChannel Guidelines
        4. EtherChannel Configuration Example
        5. EtherChannel Load Balancing
      2. CDP
        1. Voice VLAN and CDP
        2. Security Issues
      3. Multiple Default Gateways
      4. MAC Address Notification
      5. Layer 3 Protocol Filtering
      6. DHCP for Management IP Configuration
      7. Debounce Timer Feature
      8. Broadcast and Multicast Suppression
      9. Baby Giants and Jumbo Frames
      10. Error-Disable Feature
      11. IEEE 802.3 Flow Control
      12. UDLD and Aggressive Mode UDLD
      13. Case Study: Function of Aggressive Mode UDLD
      14. Study Tips
      15. Summary
      16. Configuration Exercise
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Configure and Verify EtherChannel
        6. Task 2: Configure and Verify LACP EtherChannel
        7. Task 3: Configure and Verify CDP
        8. Task 4: Configure and Verify Aggressive Mode UDLD
        9. Task 5: Configure and Verify Jumbo Frame
        10. Task 6: Configure and Verify Error-Disable
      17. Review Questions
    17. 8. Understanding and Configuring Inter-VLAN Routing
      1. IP Address Hierarchy in a Multilayer Switched Network
      2. Introduction to Inter-VLAN Routing
        1. Connecting VLANs with Multilayer Catalyst Switches
          1. Routed Ports
          2. Switch Virtual Interfaces
          3. Bridge Virtual Interfaces
        2. Router on a Stick (External Router)
        3. Verifying the Inter-VLAN Routing Configuration
      3. IP Broadcast Forwarding
        1. DHCP Relay Agent
        2. UDP Broadcast Forwarding
      4. Study Tips
      5. Summary
      6. Configuration Exercise: Configuring Inter-VLAN Routing on Cisco IOS–Based Catalyst Switches
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Configure Inter-VLAN Routing Using SVIs on a Building Distribution Switch
        6. Task 2: Configure Simple Routing Using EIGRP
        7. Task 3: Configure Inter-VLAN Routing Using a Router on a Stick
        8. Task 4: Configure SVI Interfaces for DHCP Forwarding
      7. Review Questions
    18. 9. Understanding and Configuring Multilayer Switching
      1. Understanding Traditional MLS
      2. Understanding CEF-Based MLS
        1. Centralized and Distributed Switching
        2. Address Resolution Protocol Throttling
        3. Switching Table Architectures
          1. CAM
          2. TCAM
            1. CEF-Based MLS Operation and Use of TCAM
        4. Sample CEF-Based MLS Operation
        5. CEF-Based MLS Load Sharing
      3. CEF-Based MLS Configuration, Verification, and Troubleshooting
        1. CEF-Based MLS Configuration
        2. CEF-Based MLS Verification and Troubleshooting
          1. Viewing the Layer 3 Engine CEF Table
          2. Viewing the Layer 3 Engine Adjacency Table
          3. Debugging CEF on the Layer 3 Engine
        3. CEF-Based MLS Troubleshooting Methodology
      4. Study Tips
      5. Summary
      6. Configuration Exercise: Troubleshooting CEF-Based MLS
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Establish Console (Out-of-Band) Connectivity or Telnet or SSH Connectivity to the Switch
        6. Task 2: Determine the IP Routing Entry or Subnet That Is Experiencing Connectivity Problems or a CEF-Based MLS Issue
        7. Task 3: Verify the Cisco IOS IP Routing Table and ARP Entries for the Route
        8. Task 4: Verify the IP CEF FIB and Adjacency Entries for the Route
        9. Task 5: Debug the CEF FIB and Adjacency Table’s Downloads to the Centralized Switching and Distributed Switching Engines, and Verify the TCAM Contents for FIB and Adjacency Tables
      7. Review Questions
    19. 10. Understanding and Implementing Quality of Service in Cisco Multilayer Switched Networks
      1. The Need for QoS
        1. Latency
        2. Jitter
        3. Packet Loss
        4. QoS-Enabled Solutions
      2. QoS Service Models
        1. Integrated Services Architecture
        2. Differentiated Services
        3. Assured Forwarding and Expedited Forwarding
          1. Assured Forwarding
          2. Expedited Forwarding
      3. Catalyst QoS Fundamentals
        1. Classification
          1. Trust Boundaries and Configurations
          2. NBAR
        2. Marking
        3. Traffic Conditioning: Policing and Shaping
          1. Shaping
          2. Policing
        4. Congestion Management
          1. FIFO Queuing
          2. Weighted Round Robin Queuing
          3. Shaped Round Robin (SRR)
          4. Priority Queuing
          5. Custom Queuing
          6. Other Congestion-Management Features and Components
        5. Congestion Avoidance
          1. Tail Drop
          2. Weighted Random Early Detection
      4. QoS in the Multilayer Switched Network
        1. QoS in the Building Access Submodule
        2. QoS in the Building Distribution Submodule
        3. QoS in the Campus Backbone
      5. Auto QoS
      6. Study Tips
      7. Summary
      8. Configuration Exercise: Configuring QoS on Cisco IOS–Based Catalyst Switches
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Globally Enable QoS
        6. Task 2: Configure the Switch to Trust DSCP on Interfaces FastEthernet0/1 Through 0/10 if a Cisco IP Phone Is Attached
        7. Task 3: Configure the Switch to Classify All Incoming Frames on Interface FastEthernet 0/11 with a CoS Value of 4 for Untagged Frames
        8. Task 4: Configure a Policy Map, a Class Map, and the Interface Such That All Ingress TCP Port 30000 Packets on FastEthernet0/11 Have Their DSCP Set to 16
        9. Task 5: Configure All Egress Queues Such That CoS Values 4, 6, and 7 Use Queue 3 and a CoS Value 5 Uses Queue 4
        10. Task 6: Configure Queue 4 as a Strict-Priority Queue
        11. Task 7: Configure WRR Weights Such That Queue 3 Receives Twice as Much Service as Any Other Single Queue
        12. Task 8: Verify All Configurations by Viewing Interface Statistics
      9. Review Questions
    20. 11. Deploying Multicast in the Multilayer Switched Network
      1. Introduction to Multicast
        1. Multicast IP Address Structure
          1. Reserved Link Local Addresses
          2. Globally Scoped Addresses
          3. Source-Specific Multicast Addresses
          4. GLOP Addresses
          5. Limited-Scope Addresses
        2. Multicast MAC Address Structure
        3. Reverse Path Forwarding
        4. Multicast Forwarding Tree
          1. Source Trees
          2. Shared Trees
          3. Comparing Source Trees and Shared Trees
      2. IP Multicast Protocols
        1. PIM
          1. PIM Dense Mode
          2. PIM Sparse Mode
          3. PIM Sparse-Dense Mode
          4. PIM Bidirectional
          5. Automating Distribution of RP
            1. Auto-RP
            2. Bootstrap Router
          6. Comparison and Compatibility of PIM Version 1 and Version 2
        2. IGMP
          1. IGMPv1
          2. IGMPv2
          3. IGMPv3
          4. IGMPv3 Lite
      3. Multicast Hardware-Based Switching Methods
        1. MMLS
        2. CEF-Based MMLS
        3. MFIB
      4. Layer 2 Multicast Protocols
        1. IGMP Snooping
        2. Cisco Group Management Protocol
      5. IP Multicast in the Multilayer Switched Network
      6. Configuring Multicast
      7. Monitoring and Verifying IP Multicast Traffic
      8. Study Tips
      9. Summary
      10. Configuration Exercise: Configuring and Verifying Multicast in the Multilayer Switched Network to Support Stock Ticker Video Applications
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Configure Multicast Routing with Sparse-Dense Mode on Distribution Switches
        6. Task 2: Configure the RP/Mapping Agent for Auto-RP on the Core Switches
      11. Review Questions
    21. 12. Design Network Resiliency, Redundancy, and High Availability in Multilayer Switched Networks
      1. Achieving High Availability in Multilayer Switches
      2. Implementing Redundant Supervisor Engines in Catalyst Switches
        1. Route Processor Redundancy
        2. Route Processor Redundancy Plus
          1. Configuring and Verifying RPR+ Redundancy
      3. Stateful Switchover (SSO)
        1. Configuring and Verifying SSO
        2. NSF with SSO
          1. Configuring and Verifying NSF with SSO
      4. Router Redundancy Using Single Router Mode on the Catalyst 6500 Series of Switches
        1. SRM Failure Scenario with a Catalyst 6500 Supervisor Engine II and MSFC2
        2. SRM Failure Scenario with Supervisor Engine IA
        3. SRM Configuration
      5. Understanding Cisco IOS Software Modularity and In-Service Software Upgrade (ISSU)
      6. Implementing Redundant Supervisor Uplink Modules in Catalyst Switches
      7. Implementing Redundant Power Supplies
      8. Implementing Default Gateway Router Redundancy in Multilayer Switched Networks
        1. Proxy ARP
        2. IRDP
        3. Static Default Gateway Configuration
        4. Hot Standby Routing Protocol
          1. HSRP States
          2. HSRP Virtual MAC Address
          3. HSRP Load Balancing
          4. Configuring HSRP
            1. Defining the HSRP Group
            2. Configuring Router HSRP Group Priority
            3. Configuring HSRP Preempt
            4. Configuring HSRP Group Timers
            5. Configuring HSRP Interface Tracking
          5. Verifying HSRP
          6. HSRP Debugging
        5. Virtual Router Redundancy Protocol
        6. VRRP Scenarios
          1. VRRP Operation Details
          2. Configuring and Verifying VRRP
        7. Gateway Load Balancing Protocol
          1. Configuring and Verifying GLBP
      9. Cisco IOS Server Load Balancing
        1. Cisco IOS SLB Modes of Operation
        2. Configuring the Server Farm in a Data Center with Real Servers
        3. Configuring Virtual Servers
      10. Study Tips
      11. Summary
      12. Configuration Exercise: Configuring and Verifying RPR+ and HSRP
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Configure and Verify RPR+
        6. Task 2: Configure and Verify HSRP
      13. Review Questions
    22. 13. Best Practices for Deploying Cisco IP Telephony Using Cisco Catalyst Switches
      1. Why Include VoIP When Building a Converged Network?
      2. Introduction to IP Telephony Components
      3. Network Design Recommendations for IP Telephony
        1. QoS
        2. Voice (Auxiliary) VLANs
        3. Network Bandwidth Provisioning
        4. Power Considerations
        5. Network Management
        6. IP Telephony High Availability
        7. Security
      4. Best Practices for Deploying IP Telephony in the Enterprise Composite Network Model
      5. Study Tips
      6. Summary
      7. Configuration Exercise: Configuring Voice VLANs on a Catalyst Switch
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Configure Access and Voice VLAN
        6. Task 2: Configure Interfaces for Access and Voice VLANs
        7. Task 3: Configure Interface FastEthernet 0/1 Through 0/10 for a Recommended QoS Configuration for Congestion Management
        8. Task 4: Configure Interface FastEthernet 0/1 for a Classification Based on Trusting CoS
        9. Task 5: Configure Interface FastEthernet 0/2 for Classification Based on Trusting DSCP
        10. Task 6: Configure Interfaces FastEthernet 0/3 Through 0/10 for Trusting CoS Based on Whether an IP Phone Is Attached to the Interface
        11. Task 7: Verify the Voice VLAN Configuration of the FastEthernet Interfaces
      8. Review Questions
    23. 14. Securing Your Multilayer Switched Network to Minimize Service Loss and Data Theft
      1. Introduction to Layer 2 Security and Types of Layer 2 Attacks
        1. Understand How a Rogue Device Gains Unauthorized Access
        2. Categories of Layer 2 Attacks
      2. Catalyst Switch Configurations for Security in Multilayer Switched Networks
        1. Configuring Strong System Passwords
        2. Restricting Management Access Using Access Control Lists
        3. Securing Physical Access to the Console
        4. Securing Access to vty Lines
        5. Configuring System Warning Banners
        6. Disabling Unneeded or Unused Services
        7. Trimming and Minimizing Use of CDP
        8. Disabling the Integrated HTTP Daemon
        9. Configuring Basic System Logging
        10. Securing SNMP
        11. Limiting Trunking Connections and Propagated VLANs
        12. Securing the Spanning-Tree Topology
      3. Configuring AAA
        1. Authentication
        2. Authorization
        3. Accounting
        4. Configuring AAA Authentication
        5. Configuring AAA Authorization
        6. Configuring AAA Accounting
        7. A Step-by-Step Example of Configuring Cisco AAA on a Cisco IOS-Based Catalyst Switch
        8. Additional Resources for Understanding and Configuring AAA
      4. Port Security
        1. Allowing Traffic Based on Host MAC Addresses
        2. Restricting Traffic Based on Host MAC Addresses
        3. Blocking Unicast Flooding on Desired Ports
        4. Port Security Summary
      5. Network Access Security Using IEEE 802.1X
        1. Configuring IEEE 802.1X
      6. Understanding Cisco Network Admission Control on Catalyst Switches
      7. Applying Security Using Access Control Lists
        1. RACLs
        2. VACLs
        3. Port ACLs
      8. Securing Networks Using Firewalls
      9. Security Through Network Address Translation (NAT)
      10. DHCP Snooping
        1. IP Source Guard
        2. Configuring IPSG
      11. Dynamic ARP Inspection
      12. Understanding the Role of Private VLANs as a Security Feature
      13. Understanding the Role of QoS as a Security Feature
      14. STP Security Mechanisms Review
      15. Case Study: Understanding and Preventing VLAN Hopping Attacks
      16. Study Tips
      17. Summary
      18. Configuration Exercise 1: AAA, 802.1X, and VACLs
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Enable AAA, Disable Telnet, and Enable SSH
        6. Task 2: Configure AAA Authentication for VTY Access Using RADIUS and the Local Username and Password Database if the Radius Server Is Unavailable
        7. Task 3: Configure 802.1X on a Per-Interface Basis
        8. Task 4: Configure VACL to Drop All Ingress Frames on TCP Port 8889
      19. Configuration Exercise 2: Securing a Cisco Multilayer Switched Network Using DHCP Snooping, IPSG, and DAI
        1. Required Resources
        2. Exercise Objective
        3. Network Diagram
        4. Command List
        5. Task 1: Enable DHCP Snooping
        6. Task 2: Verify DHCP Snooping, IPSG, and DAI Status
        7. Task 3: Simulate an IP Source Guard and DAI Violation
      20. Review Questions
    24. 15. Introduction to the Catalyst Switching Architectures
      1. Catalyst 6500
        1. Catalyst 6500 Supervisor Engine 32
        2. Catalyst 6500 with Supervisor Engine II
        3. Catalyst 6500 with Supervisor Engine 720
        4. Catalyst 6500 Modules
        5. Catalyst 6500 Service Modules
        6. Catalyst 6500 Summary
      2. Catalyst 4500
      3. Catalyst 3750
      4. Catalyst 3560
      5. Catalyst 2960
      6. Study Tips
      7. Summary
      8. Review Questions
    25. 16. Designing, Building, and Connecting Cisco Multilayer Switched Networks Using Metro Solutions
      1. Introduction to Cisco Metro Solutions
      2. Metro Ethernet
        1. Metro Ethernet Connectivity and Transport
          1. Transparent LAN Services
          2. Directed VLAN Service
        2. Metro Ethernet over SONET
        3. Metro Ethernet over Wavelength Division Multiplexing Optical Solutions
          1. Metro Ethernet over DWDM
          2. Metro Ethernet over CDWM
        4. Optical Distance Challenges
      3. Summary
      4. Review Questions
    26. 17. Performance and Connectivity Troubleshooting Tools for Multilayer Switches
      1. Techniques to Enhance Performance
      2. Monitoring Performance with SPAN and VSPAN
        1. Using SPAN to Monitor the CPU Interface of Switches
          1. Case Study: Troubleshooting a Catalyst 6500 Using a SPAN Session to Monitor the sc0 Interface
        2. Monitoring Performance with RSPAN
        3. Monitoring Performance with ERSPAN
      3. Monitoring Performance Using VACLs with the Capture Option
      4. Troubleshooting Using L2 Traceroute
      5. Enhancing Troubleshooting and Recovery Using Cisco IOS Embedded Event Manager
      6. Performance Monitoring Using the Network Analysis Module in the Catalyst 6500 Family of Switches
        1. Verification of the NAM Configuration
        2. Troubleshooting Common Problems with the NAM
      7. Study Tips
      8. Summary
      9. Review Questions
    27. 18. Introducing Wireless into the Campus Network
      1. WLANs Explained
      2. WLAN and Ethernet Similarities
      3. WLAN and Ethernet Differences
        1. Privacy Concerns
        2. Environmental Concerns
        3. Compression Concerns
        4. Mobility Concerns
        5. Regulatory Concerns
      4. WLAN Components
        1. Autonomous APs
        2. Lightweight APs
      5. Wireless Network Implementations
      6. Building Blocks of AP WLAN Topologies
      7. Building Blocks of a Bridging WLAN
      8. Topology Implementation
      9. Wireless Theory and Standards
        1. RF Basics
        2. WLAN: RF Math
        3. Antennas
        4. Regulatory Agencies and Standards
      10. 802.11 Operational Standards
        1. IEEE 802.11 Standards in the 2.4-GHz Band
        2. 802.11a Standards in the 5-GHz Band
        3. Comparing the 802.11 Standards
      11. Implementing WLANs
        1. 802.11b/g Channel Reuse
        2. 802.11a Channel Reuse
        3. Best Practices
        4. Bridge Path Considerations
        5. Power Implementation
      12. Cisco WLANs
        1. Enterprise WLAN Issues
        2. Overview of Cisco WLAN
        3. Comparing Autonomous and Lightweight APs
        4. Wireless LAN Management
          1. Cisco Wireless Control System
          2. Cisco Catalyst 6500 Series Wireless Services Module (WiSM)
          3. Cisco Wireless LAN Controller Module (WLCM) for Integrated Services Routers (ISR)
          4. CiscoWorks Wireless LAN Solution Engine (WLSE)
          5. CiscoWorks WLSE Express
          6. Cisco Wireless Location Appliance
        5. Comparing Core and Advanced Feature Roaming
          1. Cisco Airespace Roaming
          2. Cisco Airespace Layer 2 Roaming
          3. Cisco Airespace Layer 3 Roaming
        6. Split MAC
        7. LWAPP AP Association
          1. Layer 2 Lightweight AP Protocol
          2. Layer 3 Lightweight AP Protocol
          3. Access Point Association
          4. Access Point Association Order
          5. Access Point Association Layer 2 Controller Response
          6. Access Point Association Layer 3 Controller Response
        8. Mixing LWAPP with Autonomous APs
      13. Cisco Wireless Clients
        1. Wireless Client Association
        2. Open Authentication
        3. Pre-shared Key Authentication (WEP)
        4. Introducing WLAN Security
        5. Cisco Client Cards
        6. Cisco Compatible Extensions
      14. Configuring a Basic WLAN
        1. Available Interfaces for WLAN Configuration
          1. Management Interface
          2. AP-Manager Interface
          3. Virtual Interface
          4. Service-Port Interface
          5. Dynamic Interface
        2. Connecting to the Controller
        3. Configuring the Controller
      15. Verifying Controller Configuration
        1. show 802.11 Commands
        2. show advanced 802.11 Commands
        3. show ap Commands
        4. show stats Commands
          1. show client Commands
          2. show radius Commands
          3. show rogue ap Commands
          4. show rogue client Commands
      16. Summary
      17. Review Questions
    28. A. Answers to Review Questions
      1. Chapter 1
      2. Chapter 2
      3. Chapter 3
      4. Chapter 4
      5. Chapter 5
      6. Chapter 6
      7. Chapter 7
      8. Chapter 8
      9. Chapter 9
      10. Chapter 10
      11. Chapter 11
      12. Chapter 12
      13. Chapter 13
      14. Chapter 14
      15. Chapter 15
      16. Chapter 16
      17. Chapter 17
      18. Chapter 18