Optimal Routing Design: Techniques for optimizing large-scale IP routing operation and managing network growth

Cover......Page 1
Contents......Page 9
Foreword......Page 18
Introduction......Page 19
Part I: Network Design Overview......Page 24
  Goals for Network Design......Page 26
  Reliability......Page 27
  Reliability and Resiliency......Page 31
  Manageability......Page 34
  Scalability......Page 41
  Layering......Page 48
  Summary......Page 53
  Review Questions......Page 54
  Hierarchical Design......Page 56
  Addressing and Summarization......Page 71
  Redistribution......Page 83
  Review Questions......Page 92
Part II: Interior Gateway Protocols......Page 94
  Deploying EIGRP on a Large-Scale Three-Layer Hierarchical Network......Page 96
  Deploying EIGRP on a Two-Layer Hierarchical Network......Page 118
  New Features in EIGRP......Page 120
  Case Study: Summarization Methods......Page 135
  Case Study: Controlling Query Propagation......Page 137
  Case Study: A Plethora of Topology Table Entries......Page 139
  Case Study: Troubleshooting EIGRP Neighbor Relationships......Page 141
  Case Study: Troubleshooting SIA Routes......Page 145
  Case Study: Redistribution......Page 150
  Case Study: Retransmissions and SIA......Page 155
  Case Study: Multiple EIGRP Autonomous Systems......Page 157
  Review Questions......Page 160
  Summarization and Aggregation......Page 164
  Deploying OSPF on Specific Topologies......Page 185
  Case Study: OSPF Externals and the Next Hop......Page 203
  Case Study: Troubleshooting OSPF Neighbor Adjacencies......Page 205
  Review Questions......Page 208
 Chapter 5 IS-IS Network Design......Page 210
  Deploying IS-IS on a Three-Layer Hierarchy......Page 211
  Deploying IS-IS on a Two-Layer Hierarchy......Page 218
  Working with IS-IS Routing Areas......Page 219
  Deploying IS-IS on Specific Topologies......Page 225
  Other Considerations in IS-IS Scaling......Page 233
  Case Study: Troubleshooting IS-IS Neighbor Relationships......Page 238
  Review Questions......Page 241
Part III: Advanced Network Design......Page 244
 Chapter 6 BGP Cores and Network Scalability......Page 246
  Case Study: Troubleshooting BGP Neighbor Relationships......Page 248
  BGP in the Core......Page 253
  Scaling Beyond the Core......Page 257
  BGP Network Growing Pains......Page 260
  External Connections......Page 268
  Review Questions......Page 279
  Considerations in Fast Convergence......Page 282
  Fast Down Detection......Page 301
  Slowing Down When the Network Speeds Up......Page 311
  Calculating the Route Faster......Page 317
  Deploying GR and Fast Convergence Technologies......Page 323
  Review Questions......Page 328
  Fundamentals of Routing and Security......Page 330
  Types of Attacks Against Routing Systems......Page 339
  Protecting Routing Domain Legitimacy......Page 347
  Protecting Routing Information......Page 358
  Future Directions in Routing Protocol Security......Page 364
  References......Page 370
  MPLS......Page 374
  IPSec......Page 391
  NHRP......Page 393
  Dynamic Multipoint IPSec VPNs......Page 397
  References......Page 400
Part IV: Appendixes......Page 402
 Appendix A: EIGRP for IP Basics of Operation......Page 404
 Appendix B: OSPF Basics of Operation......Page 420
 Appendix C: Integrated IS-IS Basics of Operation......Page 432
 Appendix D: Border Gateway Protocol 4 Basics of Operation......Page 442
 Appendix E: IP Network Design Checklist......Page 456
 Appendix F: Answers to Review Questions......Page 462
 Appendix G: Which Routing Protocol?......Page 478
 A......Page 492
 C......Page 493
 E......Page 494
 G......Page 496
 I......Page 497
 M......Page 499
 O......Page 500
 R......Page 501
 S......Page 503
 T......Page 504
 W-X-Y-Z......Page 505