Cisco LAN Switching Configuration Handbook / Edition 2

Cisco LAN Switching Configuration Handbook / Edition 2

4.5 4
by Steve McQuerry, David Jansen, David Hucaby

Cisco LAN Switching Configuration Handbook

Second Edition

A concise reference for implementing the most frequently used features of the Cisco Catalyst family of switches

Steve McQuerry, CCIE® No. 6108

David Jansen, CCIE No. 5952

David Hucaby, CCIE No. 4594

Cisco LAN Switching Configuration Handbook, Second Edition, is a quick and portable reference

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Cisco LAN Switching Configuration Handbook

Second Edition

A concise reference for implementing the most frequently used features of the Cisco Catalyst family of switches

Steve McQuerry, CCIE® No. 6108

David Jansen, CCIE No. 5952

David Hucaby, CCIE No. 4594

Cisco LAN Switching Configuration Handbook, Second Edition, is a quick and portable reference guide to the most commonly used features that can be configured on Cisco® Catalyst® switches. Written to be used across all Catalyst IOS platforms, the book covers general use of Cisco IOS®, followed by a series of chapters that provide design and configuration guidelines. Each chapter starts with common design overviews and then describes the configuration of management features. Coverage includes Layer 2, Layer 3, multicast, high availability, and traffic management configurations.

This book is organized by groups of common features, with sections marked by shaded tabs for quick reference. Information on each feature is presented in a concise format, with background, configuration, and example components. The format is organized for easy accessibility to commands and their proper usage, saving you hours of research time.

From the first page, the authors zero in on quick facts, configuration steps, and explanations of configuration options in each Cisco Catalyst switch feature. The quick reference format allows you to easily locate just the information you need without having to search through thousands of pages of documentation, helping you get your switches up and running quickly and smoothly.

Whether you are looking for a handy, portable reference to more easily configure Cisco Catalyst switches in the field, or you are preparing for CCNA®, CCNP®, or CCIE® certification, you will find Cisco LAN Switching Configuration Handbook, Second Edition, to be an essential resource.

Steve McQuerry, CCIE No. 6108, is a technical solutions architect with Cisco focused on data center solutions. Steve works with enterprise customers in the midwestern United States to help them plan their data center architectures. David Jansen, CCIE No. 5952, is a technical solutions architect (TSA) with Cisco focused on Data Center Architectures at Cisco. David has more than 20 years of experience in the IT industry. David Hucaby, CCIE No. 4594, is a lead network engineer for the University of Kentucky, where he works with healthcare networks based on the Cisco Catalyst, ASA/PIX/FWSM security, and VPN product lines.

  • Implement switched campus network designs
  • Configure switch prompts, IP addresses, passwords, switch modules, file management, and administrative protocols
  • Understand how Layer 3 interfaces are used in a switch
  • Configure Ethernet, Fast Ethernet, Gigabit Ethernet, and EtherChannel interfaces
  • Implement VLANs, trunking, and VTP
  • Operate, configure, and tune Spanning Tree Protocol (STP)
  • Handle multicast traffic and interact with multicast routers
  • Streamline access to server and firewall farms with accelerated server load balancing
  • Deploy broadcast suppression, user authentication, port security, and VLAN access lists
  • Configure switch management features
  • Implement QoS and high availability features
  • Transport voice traffic with specialized voice gateway modules, inline power, and QoS features

This book is part of the Networking Technology Series from Cisco Press®, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.

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Product Details

Cisco Press
Publication date:
Networking Technology Series
Edition description:
New Edition
Product dimensions:
7.30(w) x 9.00(h) x 0.80(d)

Table of Contents


Chapter 1: CLI Usage

1-1: Cisco Internetwork Operating System (IOS) Software

Using Cisco IOS Software

1-2: ROM Monitor

Using the ROM Monitor Command Set

Chapter 2: Switch Functionality

2-1: Catalyst Switch Families

Catalyst 2000 Series

Catalyst 3000 Series

Catalyst 4500 Series

Catalyst 6500

2-2: Switched Campus Network Designs

Catalyst Switch Families

Cisco Validated Designs: Campus

Chapter 3: Supervisor Engine Configuration

3-1: Prompts and Banners

Configuration of Prompt

Configuration of Banner

Feature Example

3-2: IP Addressing and Services

Configuring an IP Management Address

Configuring a Default Gateway

Setting Up DNS Services or Host Tables

Configuring HTTP Services

Feature Example

3-3: Passwords and Password Recovery

Configuration of Passwords

Feature Example

Password Recovery: Procedure 1

Feature Example

Password Recovery on IOS Devices: Procedure 2

Feature Example

3-4: Managing Modules

Viewing Modules

Accessing Modules

Resetting Modules

Powering Modules Up and Down

3-5: File Management and Boot Parameters

Navigating File Systems

Deleting Files from Flash

Copying System Files

File System Boot Parameters

Alias Commands

3-6: Redundant Supervisors

Forcing a Change to the Standby Supervisor

Synchronizing IOS Images

Synchronizing Boot Parameters

3-7: Cisco Discovery Protocol

Configuration of CDP

Feature Example

3-8: Time and Calendar

System Time Configuration

Setting the System Time Manually

Setting the System Time Through NTP


Chapter 4: Layer 2 Interface Configuration

4-1: Switching Table


Displaying Information About the Switching Table

Switching Table Example

4-2: Port Selection


Port Selection Example

4-3: Ethernet


Ethernet Example

Displaying Information About Layer 2 Interfaces

4-4: EtherChannel


EtherChannel Example

Displaying Information About EtherChannels

Chapter 5: Layer 3 Interface Configuration

5-1: Layer 3 Switching

5-2: Layer 3 Ethernet Interfaces


Verifying the Configuration

Feature Example

5-3: Layer 3 EtherChannels


Verifying the Channel

Feature Example

5-4: WAN Interfaces


Configuring an Enhanced FlexWAN Interface

Configuring a SPA Interface Processor (SIP) / Shared Port Adapter (SPA)

WAN Interface

Configuring a Packet-over-SONET Interface

Verifying Configurations

Feature Example

5-5: Layer 3 Virtual Interfaces

Configuring a VLAN Interface

Configuring Subinterfaces

Verifying Configurations

Feature Example

5-6: Routing Tables


Verifying Routes

Chapter 6: VLANs and Trunking

6-1: VLAN Configuration

Creation of an Ethernet VLAN

Feature Example

6-2: VLAN Port Assignments

Configuring Static VLANs

Configuring Dynamic VLANs

Verifying VLAN Assignments

6-3: Trunking

Enabling Trunking

Specifying VLANs to Trunk

Verifying Trunks

Feature Example

6-4: VLAN Trunking Protocol

Enabling VTP for Operation

Setting VTP Passwords

Changing VTP Modes

Enabling VTP Pruning

Changing VTP Versions

Verifying VTP Operation

Feature Example

6-5: Private VLANs

Configuring Private VLANs

Configuring Private Edge VLANs

Verifying Private VLAN Operation

Feature Example

Chapter 7: Spanning Tree Protocol (STP)

7-1: STP Operation

STP Process

STP Tiebreakers

Path Costs

STP Port States

STP Topology Changes

Improving STP Stability

STP Operation Example

7-2: STP Configuration

Displaying Information About STP

STP Configuration Examples

Poor STP Root Placement

STP Load Balancing

7-3: STP Convergence Tuning

Configuring STP Convergence Tuning

7-4: Navigating the Spanning-Tree Topology

Chapter 8: Configuring High Availability Features

8-1: Route Processor Redundancy (RPR/RPR+)


Displaying Information About RPR

8-2: Non-Stop Forwarding/Supervisor Switchover (NSF/SSO) with Supervisor


SSO/NSF Configuration

Displaying Information About SSO and NSF

8-3: Router Redundancy with HSRP


HSRP Example

Displaying Information About HSRP

8-4: Fast Software Upgrade (FSU) and Enhanced Fast Software Upgrade


Chapter 9: Multicast

9-1: Multicast Addressing

9-2: IGMP Snooping


IGMP Snooping Example

Displaying Information About IGMP Snooping

Chapter 10: Server Load Balancing (SLB)

10-1: SLB


SLB Example

Displaying Information About SLB

10-2: SLB Firewall Load Balancing


Firewall Load-Balancing Example

Displaying Information About Firewall Load Balancing

10-3: SLB Probes


Displaying Information About SLB Probes

Chapter 11: Controlling Traffic and Switch Access

11-1: Broadcast Suppression

Configuring Broadcast Suppression

Verifying Configuration

Feature Example

11-2: Protocol Filtering



Feature Example

11-3: Port Security



Feature Example

11-4: VLAN Access Control Lists

IOS VACL Configuration


Feature Example

11-5: Switch Authentication



Feature Example

11-6: Access Class



Feature Example

11-7: SSH Telnet Configuration



Feature Example

11-8: 802.1X Port Authentication


Feature Example

11-9: Layer 2 Security

Port Security

Feature Example


DHCP Snooping

Feature Example


Dynamic ARP Inspection

Feature Example


Chapter 12: Switch Management

12-1: Logging


Logging Example

Displaying Information About Logging

12-2: Simple Network Management Protocol


SNMP Example

Displaying Information About SNMP

12-3: Switched Port Analyzer

SPAN Configuration

RSPAN Configuration

SPAN Examples

Displaying Information About SPAN

12-4: Power Management


Displaying Information About Power Management

12-5: Environmental Monitoring

12-6: Packet Tracing


Packet-Tracing Example

Chapter 13: Quality of Service

13-1: QoS Theory

Layer 2 QoS Classification and Marking

Layer 3 QoS Classification and Marking

Catalyst Switch Queuing

13-2: QoS Configuration

Catalyst 2000/3000 Configuration

All Other Catalyst Configuration

Displaying Information About QoS

13-3: QoS Data Export


QoS Data Export Example

Displaying Information About QoS Data Export

Chapter 14: Voice

14-1: Voice Ports



Displaying Information About Voice Ports

14-2: Voice QoS

Access Layer Configuration

Distribution and Core Layer Configuration

Voice QoS Example

Appendix A: Cabling Quick Reference

Back-to-Back Connections

Ethernet Connections

Asynchronous Serial Connections

T1/E1 CSU/DSU Connections

Appendix B: Well-known Protocol, Port, and Other Numbers


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