Fault-Tolerant IP and MPLS Networks
作者：Iftekhar Hussain
出版日期：November 11, 2004
页数：336
ISBN：1-58705-126-5
本书永久链接：http://www.ppurl.com/2009/01/fault-tolerant-ip-and-mpls-networks.html
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书籍简介
Design and deploy high availability IP and MPLS network architectures with this comprehensive guide
Includes a detailed overview of the IP/MPLS forwarding and control plane protocols, including OSPF, IS-IS, LDP, BGP, and RSVP
Analyze fault-tolerant IP/MPLS control plane architectures with the explanations in this book
Develop a clear understanding of various high availability aspects of IP/MPLS networks
Learn how to seamlessly deploy IP/MPLS control plane restart mechanisms
Master the application of fault-tolerant control-plane architectures in designing and deploying highly reliable and available MPLS applications, such as traffic engineering, L2VPNs, and L3VPNs
Understand the layered architecture of network-level fault recovery mechanisms, such as optical, SONET, MPLS, and interactions between different layers
In the wake of increased traffic, today’s service providers and enterprises must assure high availability across a variety of networked services and applications. Multiprotocol Label Switching (MPLS) is the enabling technology for the widespread deployment of IP networks in core and Metro Ethernet applications. Many service providers need to move their legacy Layer 2 and Layer 3 services onto converged MPLS and IP-enabled networks, but high availability is a prerequisite for offering profitable carrier-class services. Although most carrier-class routers do provide an adequate level of hardware redundancy, control-plane software is still vulnerable to and, in many cases, the cause of router failures.
Fault-Tolerant IP and MPLS Networks provides you with an in-depth analysis of the mechanisms that improve the reliability and availability of IP and MPLS control plane components. The IP/MPLS control-plane architecture and all its restart mechanisms are explained with examples and deployment considerations.
This explanation of IP/MPLS control-plane architecture begins with a service view of the network, moves on to the node-level view by partitioning the network into its constituent network elements, and then advances to the component-level view to explore various techniques that can be used to improve the reliability and availability of each component. The top-down and example-oriented approach facilitates a solid understanding of the constituent components before moving on to more advanced MPLS applications involving multiple components.
Fault-Tolerant IP and MPLS Networks is your practical guide for understanding, designing, and deploying carrier class IP/MPLS networks.
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.
+ 展开目录About the Author
About the Technical Reviewers
Acknowledgments
Icons Used in This Book
Command Syntax Conventions
Introduction
Part I: IP/MPLS Forwarding Plane
Chapter 1. Understanding High Availability of IP and MPLS Networks
Reliability and Availability of Converged Networks
Defining Key Terms
MPLS Network Components
Network and Service Outages
Design Strategies for Network Survivability
Scope of the Book
References
Chapter 2. IP Forwarding Plane: Achieving Nonstop Forwarding
Overview of IP Forwarding
Separation of IP Control and Forwarding Planes
IP Nonstop Forwarding Architecture
External View of the IP SSO and NSF
Summary
References
Chapter 3. MPLS Forwarding Plane: Achieving Nonstop Forwarding
Overview of MPLS
MPLS Forwarding Architecture
MPLS Nonstop Forwarding Architecture
External View of the MPLS SSO and NSF
Summary
References
Part II: IP/MPLS Control Plane
Chapter 4. Intradomain IP Control Plane: Restarting OSPF Gracefully
Internet Routing Architecture
Understanding the Detrimental Effects of the OSPF Restart
Overview of OSPF Routing
Mitigating the Detrimental Effects of OSPF Restart
Operation of the OSPF Graceful Restart Mechanism
Comparison of the OSPF Restart Mechanisms
Network Deployment Considerations
Summary
References
Chapter 5. Intradomain IP Control Plane: Restarting IS-IS Gracefully
Understanding the Detrimental Effects of the IS-IS Restart
Overview of IS-IS Routing
Mitigating the Detrimental Effects of the IS-IS Restart
IETF IS-IS Restart Operation
Cisco IS-IS Restart
Cisco IS-IS Restart Operation
Comparison of the IS-IS Restart Mechanisms
Network Deployment Considerations
Summary
References
Chapter 6. Interdomain IP Control Plane: Restarting BGP Gracefully
Introduction to Border Gateway Protocol Routing
BGP Routing Evolution and Concepts
Mitigating the Detrimental Effects of the BGP Restart
Network-Deployment Considerations
Summary
References
Chapter 7. MPLS Control Plane: Restarting BGP with MPLS Gracefully
MPLS Control- and Forwarding-Plane Components
Detrimental Effects of BGP with MPLS Restart
Review of Chapter 6 Concepts
Overview of the BGP as MPLS Control Plane
Mitigating the Detrimental Effects of BGP with MPLS Restart
BGP/MPLS Graceful Restart Operation
Network-Deployment Considerations
Summary
References
Chapter 8. MPLS Control Plane: Restarting LDP Gracefully
Overview of LDP
LDP Control-Plane and Forwarding-Plane Components
Understanding the Detrimental Effects of LDP Restart
Mitigating Detrimental Effects of the LDP Restart
LDP GR Mechanism for Downstream Unsolicited Mode
LDP GR Operation in Downstream Unsolicited Mode
LDP GR Mechanism for Downstream On-Demand Mode
Comparison of LDP GR Mechanisms for Downstream Unsolicited and Downstream On-Demand Modes
Network Deployment Considerations
Summary
References
Chapter 9. MPLS Control Plane: Restarting RSVP-TE Gracefully
Motivations for Traffic Engineering
Overview of RSVP
RSVP-TE Control-Plane and Forwarding-Plane Components
Mitigating the Detrimental Effects of RSVP-TE Restart
RSVP-TE Graceful Restart Operation
Network Deployment Considerations for RSVP-TE Graceful Restart
Summary
References
Part III: High Availability of MPLS-Based Services
Chapter 10. Improving the Survivability of IP and MPLS Networks
Layer 2 and Layer 3 Services over MPLS Networks
MPLS Traffic Engineering
Layer 3 Virtual Private Networks
Layer 2 Virtual Private Networks
Network Fault Tolerance and MPLS-Based Recovery
Network Fault Tolerance and MPLS OAM Mechanisms
Network Fault Tolerance and In-Service Software Upgrades
Summary
References
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