Building Resilient IP Networks

✍ Scribed by Kok-keong Lee

• Publisher: Cisco Systems
• Year: 2005
• Tongue: English
• Leaves: 376
• Edition: 1
• Category: Library

✦ Synopsis

The practical guide to building resilient and highly available IP networks 

• Learn from an all-in-one introduction to new features and developments in building a resilient IP network
• Enable your organization to meet internal service-level agreements (SLAs) for mission-critical resources
• Understand how a resilient IP network can help in delivering mission-critical information such as video and voice services
• Work with configuration examples that are based on real-world issues and customer requirements
• Get tips and best practices from field personnel who have worked on some of the largest networks with stringent uptime requirements and SLAs

More companies are building networks with the intention of using them to conduct business. Because the network has become such a strategic business tool, its availability is of utmost importance to companies and their service providers. The challenges for the professionals responsible for these networks include ensuring that the network remains up all the time, keeping abreast of the latest technologies that help maintain uptime, and reacting to ever-increasing denial-of-service (DoS) attacks.

 

Building Resilient IP Networks helps you meet those challenges. This practical guide to building highly available IP networks captures the essence of technologies that contribute to the uptime of networks. You gain a clear understanding of how to achieve network availability through the use of tools, design strategy, and Cisco IOS® Software.

 

With Building Resilient IP Networks, you examine misconceptions about five-nines availability and learn to focus your attention on the real issues: appreciating the limitations of the protocols, understanding what has been done to improve them, and keeping abreast of those changes. Building Resilient IP Networks highlights the importance of having a modular approach to building an IP network and, most important, illustrates how a modular design contributes to a resilient network. You learn how an IP network can be broken down to various modules and how these modules interconnect with one another. Then you explore new network resiliency features that have been developed recently, categorized with respect to the design modules.

 

Building Resilient IP Networks is relevant to both enterprise and service provider customers of all sizes. Regardless of whether the network connects to the Internet, fortifying IP networks for maximum uptime and prevention of attacks is mandatory for anyone’s business.

 

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.

 

✦ Table of Contents

Building Resilient IP Networks
Table of Contents
Copyright
About the Authors
About the Technical Reviewers
Acknowledgments
Icons Used in This Book
Command Syntax Conventions
Introduction
Who Should Read This Book?
How This Book Is Organized
Chapter 1.  Rise of the IP Transport System
The Internet Explosion
Next-Generation IP Applications
MPLS: New Kid on the Block
Next-Generation IP Transport System
Continuous Improvements of Protocols
Chapter 2.  Establishing a High-Availability Network
Understanding the Five-Nines Availability Debate
A Practical Approach to Achieving High Availability
Summary
Chapter 3.  Fundamentals of IP Resilient Networks
Revisiting IP, TCP, and UDP
Device-Level Resiliency
Impact of Different Switching Paths
Protecting the Control Plane and Data Plane
Establishing a Resiliency Strategy
Key Principles for Designing Resilient Networks
Summary
Chapter 4.  Quality of Service
Protecting the Control Plane with QoS
Protecting Applications with QoS
Building Blocks of QoS
Application QoS and Control-Plane Traffic
QoS Deployment Strategy
Summary
Chapter 5.  Core Module
Network Convergence in the Core
OSPF Enhancements
IS-IS Enhancements
EIGRP Enhancements
IP Event Dampening
Multipath Routing
MPLS Traffic Engineering
Multicast Subsecond Convergence
Summary
Chapter 6.  Access Module
Multilayer Campus Design
Access Module Building Blocks
Layer 2 Domain
Layer 3 Domain
Summary
Chapter 7.  Internet Module
Understanding Addressing and Routing in the Internet Module
Establishing Internet Module Redundancy
Implementing Security Measures
Resilient Border Gateway Protocol (BGP) Design
Using Network Address Translation (NAT)
Summary
Chapter 8.  WAN Module
Leased Line
SONET/SDH
Resilient Packet Ring
Dial Backup
Virtual Private Network (VPN)
Summary
Chapter 9.  Data Center Module
Data Center Environmental Considerations
Data Center Network Considerations
Data Center Network Architecture
Data Center Network Security
Service Optimization
Integrated Service Modules
Summary
Chapter 10.  Beyond Implemention: Network Managment
Components of Network Management
Establishing a Baseline
Managing Cisco IOS Deployment
Moving Toward Proactive Management
Summary
End Notes
Appendix A.  Calculating Network Availability
The Percentage Method
The Defects-per-Million Method
Theoretical Availability of a Device
Calculating a Simple System Availability
Calculating Availability for a Simple Network Topology
Summary
Appendix B.  RFCs Relevant to Building a Resilient IP Network
Appendix C.  The Cisco Powered Network Checklist
Facility and Physical Requirements
Physical Security
Network Security
Operations
Cabling
Index
SYMBOL
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
temp0120.html