CCNA学习指南

Introduction

Assessment Test

Chapter 1 Internetworking

Internetworking Basic

Internetworking Models

The Layered Approach

Advantages of Reference Models

The OSI Reference Model

The OSI Layers

Ethernet Networking

Half-and Full-Duplex Ethernet

Ethernet at the Data Link Layer

Ethernet at the Physical Layer

Ethernet Cabling

Straight-Through Cable

Crossover Cable

Rolled Cable

Data Encapsulation

Cabling the Wide Area Network

Serial Transmission

Data Terminal Equipment and Data Communication

Equipment

Fixed and Modular Interfaces

Integrated Services Digital Network(ISDN)Connections

Selecting Cisco Products

Cisco Hubs

Cisco Routers

Cisco Switches

The Cisco Three-Layer Hierarchical Model

The Core Layer

The Distribution Layer

The Access Layer

Summary

Exam Essentials

Key Terms

Written Labs

Written Lab 1.1:OSI Questions

Written Lab 1.2:Defining the OSI Layers and Devices

Written Lab 1.3:Identifying Collision and Broadcast Domains

Review Questions

Answers to Review Questions

Answers to Written Labs

Answers to Written Labs 1.1

Answers to Written Labs 1.2

Answers to Written Labs 1.3

Chapter 2 Layer-2 Switching

Before Layer-2 Switching

Switching Services

Limitations of Layer-2 Switching

Bridging vs.LAN Switching

Three Switch Functions at Layer 2

Spanning Tree Protocol(STP)

Spanning-Tree Terms

Spanning-Tree Operations

Spanning-Tree Example

LAN Switch Types

Cut-through(Real Time)

FragmentFree(Modified Cut-Through)

Store-and-Forward

Summary

Exam Essentials

Key Terms

Written Lab 2

Review Questions

Answers to Review Questions

Answers to Written Lab 2

Chapter 3 Internet Protocols

TCP/IP and the DoD Model

The Process/Application Layer Protocols

The Host-to-Host Layer Protocols

The Internet Layer Protocols

IP Addressing

IP Terminology

The Hieratrchical IP addressing Scheme

Subnetting

Subnet Masks

Subnetting Class C Addresses

Subnetting Class B Addresses

Subnetting Class A Addresses

Summary

Exam Essentials

Key Terms

Written Lab 3

Review Questions

Answers to Review Questions

Answers to Written Lab 3

Chapter 4 Introduction to the Cisco IOS

Cisco Router User Interface

Cisco Router IOS

Connecting to a Cisco Router

Bringing Up a Router

Setup Mode

Command-Line Interface

Logging into the Router

Overview of Route Modes

CLI Prompts

Editing and Help Features

Gathering Basic Routing Information

Setting Passwords

Encrypting Your Passwords

Banners

Router Interfaces

Hostnames

Descriptions

Viewing and Saving Configurations

Verifying Your Configuration

Summary

Exam Essentials

Key Terms

Commands Used in This Chapter

Written Lab 4

Hands-on Labs

Hands-on Labs 4.1:Logging into a Router

Hands-on Labs 4.2:Using the Help and Editing Features

Hands-on Labs 4.3:Saving a Router Configuration

Hands-on Labs 4.4:Setting Your Passwords

Hands-on Labs 4.5:Setting the Hostname,Descriptions

IP Address,and Clock Rate

Review Questions

answers to Review Questions

Answers to Written Lab 4

Chapter 5 IP Routing

Routing Basics

The IP Routing Process

IP Routing in a Larger Network

Configuring IP Routing in Our Network

Static Routing

Default Routing

Dynamic Routing

Routing Protocol Basics

Administrative Distances

Routing Protocols

Distance-Vector Routing Protocols

Routing Loops

Maximum Hop Count

Split Horizon

Route Poisoning

Holddowns

Routing Information Protocol(RIP)

RIP Timers

Configuring RIP Routing

Verifying the RIP Routing Tables

Holding Down RIP Propagations

Interior Gateway Routing Protocol(IGRP)

IGRP Timers

Configuring IGRP Routing

Verifying the IGRP Routing Tables

Verifying Your Configurations

The Show Protocols Command

The Show IP Protocol Command

The Debug IP RIP Command

The Debug IP IGRP Command

Summary

Exam Essentials

Key Terms

Commands Used in This Chapter

Written Lab 5

Hands-on Labs

Hands-on Labs 5.1:Creating Static Routes

Hands-on Labs 5.2:Dynamic Routing with RIP

Hands-on Labs 5.3:dynamic Routing with IGRP

Review Questions

Answers to Review Questions

Answers to Written Lab 5

Chapter 6 Virtual LANs(VLANs)

Introduction to VLANs

Broadcast Control

Security

Flexibility and Scalability

VLAN Memberships

Static VLANs

Dynamic VLANs

Identifying VLANs

Frame Tagging

VLAN Identification Methods

Inter-Switch Link(ISL)Protocol

VLAN Trunk Protocol(VTP)

VTP Modes of Operation

VTP Pruning

Routing between VLANs

Summary

Exam Essentials

Key Terms

Written Lab 6

Review Questions

Answers to Review Questions

Answers to Written Lab 6

Chapter 7 Managing a Cisco Internetwork

The Internal Components of a Cisco Router

The Router Boot Sequence

Managing Configuration Registers

Understanding the Configuration Register Bits

Checking the Current Configuration Register Value

Changing the Configuration Register

Recovering Passwords

Backing Up and Restoring the Cisco IOS

Verifying Flash Memory

Backing Up the Cisco IOS

Restoring or Upgrading the Cisco Router IOS

Backing Up and Restoring the Cisco Configuration

Restoring the Cisco Router Configuration

Erasing the Configuration

Using Cisco Discovery Protocol

Getting CDP Timers and Holdtime Information

Gathering Neighbor Information

Gathering Interface Traffic Information

Gathering Port and Interface Information

Using Telnet

Telnetting into Multiple Devices Simultaneously

Checking Telnet Connections

Checking Telnet Users

Closing Telnet Sessions

Resolving Hostnames

Building a Host Table

Using DNS to Resolve Name

Checking Network Connectivity

Using the Ping Command

Using the Traceroute Command

Summary

Exam Essentials

Key Terms

Commands Used in This Chapter

Written Lab 7

Hands-on Labs

Hands-on Labs 7.1:Backing Up Your Router IOS

Hands-on Labs 7.2:Upgrading or Restoring Your Router IOS

Hands-on Labs 7.3:Backing Up the Router Configuration

Hands-on Labs 7.4:Using the Cisco Discovery Protocol(CDP)

Hands-on Labs 7.5:Using Telnet

Hands-on Labs 7.6:Resolving Hostnames

Review Questions

Answers to Review Questions

Answers to Written Lab 7

Chapter 8 Configuring Novell IPX

Introduction to novell IPX

Novell IPX Protocol Stack

Client-Server Communication

Server-Server Communication

IPX Addressing

Encapsulation

Enabling IPX Routing

Enablind IPX on Individual Interface

Configuring Our Internetwork with IPX

Configuring IPX on the 2621A Router

Configuring IPX on the 2501A Router

Configuring IPX on the 2501B Router

Configuring IPX on the 2501C Router

Verifying the IPX Routing Tables

Adding Secondary addresses

Configuring Secondary Addresses

Subinterfaces

Configuring Our Internetwork with Multiple Ethernet

Frame Types

Configuring Multiple frame Types on the 2621A Router

Configuring Multiple frame Types on the 2501A Router

Configuring Multiple frame Types on the 2501B Router

Configuring Multiple frame Types on the 2501C Router

Verifying the IPX Routing Tables

Monitoring IPX on Cisco Routers

The Show IPX Servers Command

The Show IPX Route Command

The Show IPX Traffic Command

The Show IPX Interface Command

The Show IPX Protocols Command

The Debug IPX Command

The Ping IPX Command

Summary

Exam Essentials

Key Terms

Commands Used in This Chapter

Written Lab 8

Hands-on Lab

Hands-on Lab 8.1:Configuring Internetworking Packet

Exchange(IPX)

Hands-on Lab 8.2:Adding Secondary Network Addresses and Multiple Frame Types with IPX

Review Questions

Answers to Review Questions

Answers to Written Lab 8

Chapter 9 Managing Traffic with Access Lists

Access Lists

Standard IP Access Lists

Controlling VTY(Telnet)Access

Extended IP Access Lists

Monitoring IP Access Lists

IPX Access Lists

Standard IPX Access Lists

Extended IPX Access Lists

IPX SAP Filters

Verifying IPX Access Lists

Summary

Exam Essentials

Key Terms

Commands Used in This Chapter

Written Lab 9

Hands-on Labs

Hands-on Lab 9.1:Standard IP Access Lists

Hands-on Lab 9.2:Extended IP Access Lists

Hands-on Lab 9.3:Standard IPX Access Lists

Review Questions

Answers to Review Questions

Answers to Written Lab 9

Chapter 10 Wide Area Networking Protocols

Wide Area Networks

Defining WAN Terms

WAN Connection Types

WAN Support

High-Level Data-Link Control Protocol(HDLC)

Point-to-Point Protocol(PPP)

Link Control Protocol(LCP)Configuration Options

PPP Session Establishment

PPP Authentication Methods

Configuring PPP on Cisco Routers

Configuring PPP Authentication

Verifying PPP Encapsulation

Frame Relay

Frame Relay Terminology

Frame Relay Encapsulation

Data Link Connection Identifiers(DLCIs)

Local Management Interface(LMI)

Subinterfaces

Mapping Frame Relay

Frame Relay Congestion Control

Committed Information Rate(CIR)

Monitoring Frame Relay

Integrated Services Digital Network(ISDN)

ISDN Components

Basic Rate Interface(BRI)

Primary Rate Interface(PRI)

ISDN with Cisco Routers

Dial-on_Demand Routing(DDR)

Configuring DDR

Configuring Static Routes

Specifying Interesting Traffic

Configuring the Dialer Information

Optional Commands

DDR with Access Lists

Verifying the ISDN Operation

summary

Exma Essentials

Key Terms

Commands Used in This Chapter

Written Lab 10

Hands-on Labs

Hands-on Lab 10.1:Configuring PPP Encapsulation and Authentication

Hands-on Lab 10.2:Configuring and Monitoring HDLC

Hands-on Lab 10.3:Configuring Frame Relay and Subinterfaces

Hands-on Lab 10.4:Configuring ISDN and BRI Interfaces

Review Questions

Answers to Review Questions

Answers to Written Lab 10

Appendix A Introduction to the Cisco IOS:Hands-on Labs

Lab A.1:Logging into a Cisco Router

Lab A.2:Editing and Help Features

Lab A.3:Gathering Basic Router Information

Lab A.4:Setting the Passwords

Lab A.5:Setting Router Banners

Lab A.6:configuring Router Interfaces

Lab A.7:Bringing up an Interface

Lab A.8:Configuring an IP Address on an Interface

Lab A.9:Serial Interface Commands

Lab A.10:Setting the Router Hostnames

Lab A.11:Setting Interface Descriptions

Lab A.12:Saving Your Configurations

Lab A.13:Verifying Your Configuration

Lab A.14:Final Lab

Appendix B Configuring the Catalyst 1900 Switch

Features of the 1900 Switch

The Three configuration Options

Connecting to The Console Port

1900 Switch Startup

Connecting to an Ethernet Port

Cisco 1900 IOS Configuration Commands

Setting the Passwords

Setting the Hostname

Setting IP Information

Configuring Switch Interfaces

Configuring Interface Descriptions

Configuring the Port Duplex

Verifying IP Connectivity

Erasing the Switch Configuration

Managing the MAC Address Table

Setting Permanent and Static MAC Addresses

Configuring Port Security

Using the Show Version Command

Changing the LAN Switch Type

Configuring VLANs

Assigning Switch Ports to VLANs

Configuring Trunk Ports

Clearing VLANs from Trunk Links

Verifying Trunk Links

Configuring ISL Routing

Configuring VTP

Configuring the Domain

Adding to a VTP Domain

VTP Pruning

Restoring or Upgrading the Catalyst 1900 IOS

Backing Up and Restoring the Catalyst 1900 Configuration

CDP with the 1900 Switch

Summary

Key Terms

Commands Used in This Appendix

Written Lab Appendix B

Hands-on Labs

Lab B.1:Managing the 1900 Switch

Lab B.2:1900 Switch Operations

Lab B.3:Creating VLANs

Lab B.4:Assigning VLANs to Switch Ports

Lab B.5:Configuring Trunking

Lab B.6:Configuring VTP

Lab B.7:Configuring Inter-VLAN Routing with ISL

Review Questions

Answers to Review Questions

Answers to Written Lab Appendix B

Appendix C Commands in This Study Guide

Glossary