Network Recovery: Protection and Restoration of Optical, SONET-SDH, IP, and MPLS
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Table of contents
- Cover
- Contentsvii
- Forewordxv
- Prefacexvii
- Chapter 1. General Introduction1
- 1.1 Communications Networks Today1
- 1.2 Network Reliability8
- 1.3 Different Phases in a Recovery Process22
- 1.4 Performance of Recovery Mechanisms: Criteria25
- 1.5 Characteristics of Single-Layer Recovery Mechanisms28
- 1.6 Multilayer Recovery36
- 1.7 Conclusion38
- Chapter 2. SONET/SDH Networks39
- 2.1 Introduction40
- 2.2 SDH and SONET Networks45
- 2.3 Operational Aspects57
- 2.4 Ring Protection81
- 2.5 Linear Protection107
- 2.6 Restoration113
- 2.7 Case Study115
- 2.8 Conclusion127
- 2.9 Recommended Reference Work and Research-Related Topics129
- Chapter 3. Optical Networks131
- 3.1 Evolution of the Optical Network Layer132
- 3.2 The Optical Transport Network139
- 3.3 Fault Detection and Propagation144
- 3.4 Recovery in Optical Networks157
- 3.5 Recovery Mechanisms in Ring-Based Optical Networks160
- 3.6 Recovery Mechanisms in Mesh-Based Optical Networks173
- 3.7 Ring-Based versus Mesh-Based Recovery Schemes182
- 3.8 Availability185
- 3.9 Recent Trends in Research197
- 3.10 Conclusion200
- Chapter 4. IP Routing203
- 4.1 IP Routing Protocols204
- 4.2 Analysis of the IP Routing Recovery Cycle214
- 4.3 Failure Profile and Fault Detection220
- 4.4 Dampening Algorithms226
- 4.5 FIS Propagation (LSA Origination and Flooding)229
- 4.6 Route Computation237
- 4.7 Temporary Loops during Network State Changes252
- 4.8 Load Balancing259
- 4.9 QoS during Failure262
- 4.10 Nonstop Forwarding: An Example with OSPF266
- 4.11 A Case Study with IS-IS270
- 4.12 Summary278
- 4.13 Algorithm Complexity279
- 4.14 Incremental Dijkstra285
- 4.15 Interaction between Fast IGP Convergence and NSF293
- 4.16 Research-Related Topics295
- Chapter 5. MPLS Traffic Engineering Recovery Mechanisms297
- 5.1 MPLS Traffic Engineering Refresher298
- 5.2 Analysis of the Recovery Cycle307
- 5.3 MPLS Traffic Engineering Global Default Restoration310
- 5.4 MPLS Traffic Engineering Global Path Protection314
- 5.5 MPLS Traffic Engineering Local Protection316
- 5.6 Another MPLS Traffic Engineering Recovery Alternative333
- 5.7 Load Balancing334
- 5.8 Comparison of Global and Local Protection336
- 5.9 Revertive versus Nonrevertive Modes346
- 5.10 Failure Profile and Fault Detection348
- 5.11 Case Studies354
- 5.12 Standardization370
- 5.13 Summary371
- 5.14 RSVP Signaling Extensions for MPLS TE Local Protection372
- 5.15 Backup Path Computation385
- 5.16 Research-Related Topics422
- Chapter 6. Multilayer Networks423
- 6.1 ASON/G-MPLS Networks424
- 6.2 Generic Multilayer Recovery Approaches437
- 6.3 Case Studies464
- 6.4 Conclusion476
- Bibliography479
- List of Figure Sources491
- Index497
Network Recovery is the first book to provide detailed information on protecting and restoring communication networks, and it sets a sky-high standard for any that may follow. Inside, you’ll learn specific techniques that work at each layer of the networking hierarchy—including optical, SONET-SDH, IP, and MPLS—as well as multi-layer escalation strategies that offer the highest level of protection. The authors begin with an incisive introduction to the issues that define the field of network protection and restoration, and as the book progresses they explain everything you need to know about the relevant protocols, providing theoretical analyses wherever appropriate. If you work for a network-dependent organization, large or small, you’ll want to keep Network Recovery within reach at all times.
* Shows you how to implement protection and recovery techniques that will save your organization time and money.
* Documents techniques for the optical, SONET-SDH, IP, and MPLS layers, as well as multi-layer escalation strategies.
* Shows you how to evaluate these techniques in relation to one another, so you can develop an optimal network recovery design.
* Provides industry examples and simulation results.
* Delves into the inner workings of relevant protocols and offers theoretical analyses wherever this information contributes to your practical knowledge.
* Shows you how to implement protection and recovery techniques that will save your organization time and money.
* Documents techniques for the optical, SONET-SDH, IP, and MPLS layers, as well as multi-layer escalation strategies.
* Shows you how to evaluate these techniques in relation to one another, so you can develop an optimal network recovery design.
* Provides industry examples and simulation results.
* Delves into the inner workings of relevant protocols and offers theoretical analyses wherever this information contributes to your practical knowledge.