Book description
A guide to understanding the troubleshooting tools, commands, and methodologies that enable reliable performance for remote access services
Gain a solid grasp of enterprise telecommunications technology fundamentals, including service options and clocking, line coding, and framing in carrier systems
Understand how network traffic is handled by carriers and service providers
Examine a layer-by-layer, systematic approach to troubleshooting issues
Design, configure, and troubleshoot T1 and PRI circuits, text and PPP dial-in and dial-out services, and Cisco AS5000 Access Servers
Design, configure, and troubleshoot ISDN BRI at the physical, data link, and network levels, as well as PPP, MMP, and telephone interfaces
Design, configure, and troubleshoot Frame Relay UNI and NNI interfaces, with a focus on new installs, wrong DLCI, LMI settings, performance and multicast issues, and re-hosting of Frame Relay service
Design, configure, and troubleshoot PTPP, L2TP, and IPSec VPNs, examining specific VPN clients, Internet technology, and LAN issues
Resolve common availability issues for all major remote access technologies through real-world scenarios for dial, ISDN, Frame Relay, and VPNs
The ranks of telecommuters, remote employees, and mobile users are growing every day and their communications needs are expanding just as rapidly. Advancements in remote access technologies allow users to become less dependent on the office and to increase productivity without sacrificing the convenience of direct access to the corporate network. Convenient, secure, and reliable connections are crucial to corporate reliance on remote access. Customers, employees, and partners should connect seamlessly, as if they were in company headquarters. They also must count on the ability to log in and to remain connected at an expected level of performance. Understanding how to deploy remote access services is the first step to realizing the benefits that these services offer but inconsistent performance or denial of service threaten productivity gains. It is critical that these services not only be available but also perform as promised.
Troubleshooting Remote Access Networks helps you understand underlying technologies and gain insight into the challenges, issues, and best practices for supporting remote access networks. This book focuses on the enterprise portion of a remote access network and includes service provider troubleshooting and design information that helps both enterprise and service provider network engineers understand the larger picture of remote access networks. This book opens with a section covering fundamental concepts. Design issues, provisioning, DSL and cable connectivity options, central office operations, authentication techniques, and troubleshooting tools are all addressed in this part of the book, forming the foundation upon which later sections are built. Each of the subsequent four parts examines a key remote access technology, including dial, ISDN, Frame Relay, and VPNs. Each part is a self-contained tutorial, providing foundation review, design and configuration overviews, and troubleshooting techniques. Each part concludes with a series of real-world support scenarios that represent proven best practices for remote access network management, drawn from tens of thousands of cases handled by the Cisco Remote Access team.
Whether you are looking for a design, configuration, and support reference guide, or need a preparation tool to help you prepare for the CCIE exam, Troubleshooting Remote Access Networks provides you with expert-level solutions to help guarantee the availability of remote access services.
Table of contents
- Contents (1/3)
- Contents (2/3)
- Contents (3/3)
- Foreword
- Introduction (1/2)
- Introduction (2/2)
-
Part I: Remote Access Fundamentals
- Chapter 1 Remote Access Overview
-
Chapter 2 Telecommunication Basics
- Shannon’s Capacity Theorem
- Modulation and Line-Coding Techniques in Wired Networks
- Modulation and Line-Coding Techniques in Wireless LANs (1/2)
- Modulation and Line-Coding Techniques in Wireless LANs (2/2)
- Modulation and Line-Coding Techniques in Hybrid Networks
- Clocking, Line Coding, and Framing in Carrier Systems (1/3)
- Clocking, Line Coding, and Framing in Carrier Systems (2/3)
- Clocking, Line Coding, and Framing in Carrier Systems (3/3)
- End Notes
- Summary
- Review Questions
-
Chapter 3 The Cloud
- Carriers, Service Providers, and How Traffic Is Carried
- FDM
- Digitalization of the Signal and Pulse Code Modulation
- TDM
- T-Carriers
- SONET, Synchronous Transport Signal, and Synchronous Digital Hierarchy
- Carrier’s Facilities and Switching Systems
- ISPs and ASPs
- Data Centers and Internet Hosting Services
- The Future of Service Providers
- End Note
- Summary
- Review Questions
- Chapter 4 Troubleshooting Approaches, Models, and Tools
- Part II: Dial
-
Part III: ISDN
- Chapter 9 ISDN Technology Background
- Chapter 10 ISDN Design Solutions
- Chapter 11 Cisco ISDN Configuration Solutions
-
Chapter 12 ISDN BRI Troubleshooting
- Troubleshooting the Physical Layer
- Troubleshooting the Data Link Layer
- Troubleshooting the Network Layer (1/3)
- Troubleshooting the Network Layer (2/3)
- Troubleshooting the Network Layer (3/3)
- Troubleshooting PPP (1/4)
- Troubleshooting PPP (2/4)
- Troubleshooting PPP (3/4)
- Troubleshooting PPP (4/4)
- Troubleshooting Telephone Interfaces
- End Notes
- Summary
- Review Questions
-
Chapter 13 Troubleshooting Scenarios for ISDN BRI
- Recommendations for Practical Troubleshooting of ISDN Remote Services
- Scenario 1: New Install Problems
- Scenario 2: Dial-Out Problems
- Scenario 3: ISDN Performance Problems (1/2)
- Scenario 3: ISDN Performance Problems (2/2)
- Scenario 4: End-to-End Communication Problems (1/3)
- Scenario 4: End-to-End Communication Problems (2/3)
- Scenario 4: End-to-End Communication Problems (3/3)
- Scenario 5: Windows 2000 DDR Issue (1/2)
- Scenario 5: Windows 2000 DDR Issue (2/2)
- Summary
-
Part IV: Frame Relay
- Chapter 14 Frame Relay Technology Background
- Chapter 15 Frame Relay Design Solutions
-
Chapter 16 Basic and Advanced Frame Relay Configurations
- Basic Frame Relay Configurations (1/3)
- Basic Frame Relay Configurations (2/3)
- Basic Frame Relay Configurations (3/3)
- Advanced Frame Relay Configurations (1/4)
- Advanced Frame Relay Configurations (2/4)
- Advanced Frame Relay Configurations (3/4)
- Advanced Frame Relay Configurations (4/4)
- Summary
- Review Questions
-
Chapter 17 Frame Relay Troubleshooting
- Beginning the Frame Relay Troubleshooting Process
- Physical Layer Troubleshooting (1/3)
- Physical Layer Troubleshooting (2/3)
- Physical Layer Troubleshooting (3/3)
- Data Link Layer Troubleshooting (1/4)
- Data Link Layer Troubleshooting (2/4)
- Data Link Layer Troubleshooting (3/4)
- Data Link Layer Troubleshooting (4/4)
- Performance Problems (1/4)
- Performance Problems (2/4)
- Performance Problems (3/4)
- Performance Problems (4/4)
- End Notes
- Summary
- Review Questions
-
Chapter 18 Frame Relay Troubleshooting Scenarios
- Scenario 1: New Install Issues (1/2)
- Scenario 1: New Install Issues (2/2)
- Scenario 2: Mismatched DLCI Settings (1/2)
- Scenario 2: Mismatched DLCI Settings (2/2)
- Scenario 3: Performance Issues from Flapping Lines and Traffic Shaping Issues (1/3)
- Scenario 3: Performance Issues from Flapping Lines and Traffic Shaping Issues (2/3)
- Scenario 3: Performance Issues from Flapping Lines and Traffic Shaping Issues (3/3)
- Scenario 4: IP Multicast Issues in Frame Relay (1/2)
- Scenario 4: IP Multicast Issues in Frame Relay (2/2)
- Scenario 5: Frame Relay Host Migration
- Summary
-
Part V: VPN
-
Chapter 19 VPN Technology Background
- Service Provider, Dedicated, and Access VPNs
- Enterprise VPNs Overview
- Enterprise VPN Categories (1/2)
- Enterprise VPN Categories (2/2)
- Network Layer (Layer 3) VPNs (1/5)
- Network Layer (Layer 3) VPNs (2/5)
- Network Layer (Layer 3) VPNs (3/5)
- Network Layer (Layer 3) VPNs (4/5)
- Network Layer (Layer 3) VPNs (5/5)
- End Notes
- Summary
- Review Questions
- Chapter 20 Remote Access VPN Design and Configuration Solutions
-
Chapter 21 Remote Access VPN Troubleshooting
- Troubleshooting Cisco Remote Access VPN Clients (1/12)
- Troubleshooting Cisco Remote Access VPN Clients (2/12)
- Troubleshooting Cisco Remote Access VPN Clients (3/12)
- Troubleshooting Cisco Remote Access VPN Clients (4/12)
- Troubleshooting Cisco Remote Access VPN Clients (5/12)
- Troubleshooting Cisco Remote Access VPN Clients (6/12)
- Troubleshooting Cisco Remote Access VPN Clients (7/12)
- Troubleshooting Cisco Remote Access VPN Clients (8/12)
- Troubleshooting Cisco Remote Access VPN Clients (9/12)
- Troubleshooting Cisco Remote Access VPN Clients (10/12)
- Troubleshooting Cisco Remote Access VPN Clients (11/12)
- Troubleshooting Cisco Remote Access VPN Clients (12/12)
- Internet Technologies and Remote Access VPNs (1/5)
- Internet Technologies and Remote Access VPNs (2/5)
- Internet Technologies and Remote Access VPNs (3/5)
- Internet Technologies and Remote Access VPNs (4/5)
- Internet Technologies and Remote Access VPNs (5/5)
- LAN and General Networking Issues Affecting Remote Access VPNs (1/2)
- LAN and General Networking Issues Affecting Remote Access VPNs (2/2)
- End Notes
- Summary
- Review Questions
-
Chapter 22 Remote Access VPN Troubleshooting Scenarios
- Warming Up with Preliminary Troubleshooting Steps (1/2)
- Warming Up with Preliminary Troubleshooting Steps (2/2)
- Scenario 1: Cannot Authenticate (1/3)
- Scenario 1: Cannot Authenticate (2/3)
- Scenario 1: Cannot Authenticate (3/3)
- Scenario 2: Can Authenticate but Problems Passing Data (1/2)
- Scenario 2: Can Authenticate but Problems Passing Data (2/2)
- Scenario 3: PPPoE Software/Hardware Problems
- Scenario 4: 3002 Connection Problems (1/2)
- Scenario 4: 3002 Connection Problems (2/2)
- Scenario 5: Extranet Issues
- Summary
-
Chapter 19 VPN Technology Background
- Appendix A: Answers to Review Questions (1/6)
- Appendix A: Answers to Review Questions (2/6)
- Appendix A: Answers to Review Questions (3/6)
- Appendix A: Answers to Review Questions (4/6)
- Appendix A: Answers to Review Questions (5/6)
- Appendix A: Answers to Review Questions (6/6)
- Index
Product information
- Title: Troubleshooting Remote Access Networks (CCIE® Professional Development)
- Author(s):
- Release date: November 2002
- Publisher(s): Cisco Press
- ISBN: 9781587050763
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