BGP design and implementation: [practical guidelines for designing and deploying a scalable BGP routing architecture]

Cover......Page 1
Table of Contents......Page 10
Introduction......Page 23
Part I: Understanding Advanced BGP......Page 28
  Understanding BGP Characteristics......Page 30
  Comparing BGP and IGP......Page 34
  Comparing the Control Plane and Forwarding Plane......Page 38
  BGP Processes and Memory Use......Page 39
  BGP Path Attributes......Page 41
  Understanding Internal BGP......Page 46
  Path Decision Process......Page 49
  BGP Capabilities......Page 52
  BGP-IGP Routing Exchange......Page 56
  Routing Information Base......Page 57
  Switching Paths......Page 58
  Case Study: BGP Memory Use Estimation......Page 73
  Summary......Page 83
 Chapter 3 Tuning BGP Performance......Page 86
  BGP Convergence Tuning......Page 87
  BGP Network Performance Features......Page 108
  Case Study: BGP Convergence Testing......Page 121
  Summary......Page 131
  Policy Control Techniques......Page 134
  Conditional Advertisement......Page 148
  Aggregation and Deaggregation......Page 155
  Local AS......Page 160
  QoS Policy Propagation......Page 163
  BGP Policy Accounting......Page 168
  Case Study: AS Integration via the Local AS......Page 170
  Summary......Page 177
Part II: Designing BGP Enterprise Networks......Page 180
  Using BGP in the Enterprise Core......Page 182
  BGP Network Core Design Solutions......Page 185
  Remote Site Aggregation......Page 217
  Case Study: BGP Core Deployment......Page 219
  Summary......Page 244
  Determining What Information to Accept from Upstream Providers......Page 246
  Multihoming......Page 247
  Route Filtering......Page 254
  Load Balancing......Page 256
  Additional Connectivity Concerns......Page 262
  Case Study: Load Balancing in a Multihoming Environment......Page 265
  Summary......Page 273
Part III: Designing BGP Service Provider Networks......Page 276
  Issues of iBGP Scalability......Page 278
  Route Reflection......Page 279
  Confederation......Page 319
  Confederation Versus Route Reflection......Page 328
  Summary......Page 330
  General Migration Strategies......Page 332
  Case Study 1: iBGP Full Mesh to Route Reflection Migration......Page 337
  Case Study 2: iBGP Full Mesh to Confederation Migration......Page 351
  Case Study 3: Route Reflection to Confederation Migration......Page 368
  Case Study 4: Confederation to Route Reflection Migration......Page 387
  Summary......Page 410
  General ISP Network Architecture......Page 412
  Transit and Peering Overview......Page 425
  BGP Community Design......Page 427
  BGP Security Features......Page 437
  Case Study: Distributed Denial-of-Service Attack Mitigation......Page 444
  Summary......Page 455
Part IV: Implementing BGP Multiprotocol Extensions......Page 458
  BGP Multiprotocol Extension for MPLS VPN......Page 460
  Understanding MPLS Fundamentals......Page 463
  Building MPLS VPN Architectures......Page 473
  VPNs Across AS Borders......Page 486
  Deployment Considerations......Page 515
  Case Study: Inter-AS VPN Using Multihop eBGP Between RRs and IPv4 Labels......Page 526
  Summary......Page 537
  Multicast Fundamentals......Page 540
  Interdomain Multicast......Page 559
  Case Study: Service Provider Multicast Deployment......Page 573
  Summary......Page 584
  IPv6 Enhancements......Page 586
  IPv6 Addressing......Page 588
  MP-BGP Extensions for IPv6 NLRI......Page 593
  Configuring MP-BGP for IPv6......Page 594
  Case Study: Deploying a Dual-Stack IPv4 and IPv6 Environment......Page 597
  Summary......Page 603
Part V: Appendixes......Page 606
 Appendix A: Multiprotocol BGP Extensions for CLNS Support......Page 608
 Appendix B: Matrix of BGP Features and Cisco IOS Software Releases......Page 624
 Appendix C: Additional Sources of Information......Page 630
  C......Page 636
  I......Page 637
  M......Page 638
  P......Page 639
  U......Page 640
  V......Page 641
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 B......Page 645
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 D......Page 648
 E......Page 649
 F......Page 650
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