LISP Control-Plane in Campus Fabric: Table of Contents

This is the table of contents of my book "LISP Control-Plane in Campus Fabric". The book is available at https://leanpub.com/lispcontrol-planeincampusfabric
The book is now complete. It soon will be available also in Amazon.




Chapter 1:  LISP Introduction 1

•   EID-to-RLOC Registration Process 2
•   EID-to-RLOC Requesting Process 2
•   References 4

Chapter 2: Campus Fabric Configuration 5

•   Underlay Network Configuration - OSPF 5
•   OSPF optimization: prefix-suppression 6
•   LISP Ingress and Egress Tunnel Router Configuration 9
•   LISP Map-Server and Map-Resolver Configurations 10
•   LISP Customer Network Configuration 12
•   Customer Layer-2 Segment with SVI attached to VRF 12
•   Customer specific LISP Configuration on XTR 13
•   Customer specific LISP Configuration on ControlPlane node 14
•   References 16

Chapter 3: LISP Control-Plane: EID-to-RLOC Registration 17

•   Registration Phase 1: TCP Probe 17
•   Registration Phase 2: UDP based Map-Register from ETR to MS 18
•   Registration Phase 3: UDP based Map-Notify from MS to ETR 22
•   Registration Phase 4: TCP based Map-Refresh from MS to ETR 25
•   Registration Phase 4: TCP based Map-Register from ETR to MS 28
•   Registration Phase 5: TCP based Registration ACK from MS to ETR 32
•   Registration Phase 6: Reliable TCP ACK from ETR to MS 36
•   Registration Phases 1-6 Summary 38
•   EID-to-RLOC Registration Verification 39
•   References 43

Chapter 4: LISP Control-Plane: EID-to-RLOC Reguest 45

•   Request Phase 1: Local Proxy-ARP by ITR 45
•   Request Phase 2: Encapsulated Control Message (ECM) by ITR 45
•   Request Phase 3: Map-Reply by MR 50
•   Request Phase 4: Map-Request probe by ITR 53
•   Request Phase 5: Map-Reply Probe by RLOC 57
•   Map-Request Process Summary: Phases 1-5 60
•   References 61

Chapter 5: Data Plane: VXLAN Encapsulation 63

•   VXLAN Data-Plane operation 63
•   SGT Information in Data-Plane 68
•   References 69

Chapter 6: LISP Control-Plane Security 70

•   The Basic LISP Control-Plane Security 70
•   Map-Register validation process 71
•   Map-Reply validation process 74
•   LISP-SEC Control-Plane Security 76
•   ITR Map-Request Process 76
•   Map-Server Map-Reply process 79
•   ITR Authentication Process 83
•   References 85

Chapter 7: Campus Fabric External Connections 86

•   Introduction 86
•   EID-Prefix advertisement from Campus Fabric to non-LISP Site 86
•   IP-Prefix advertisement from non-LISP Site to Campus Fabric. 88
•   Data-Plane operation 89
•   Configuration 95
•   BGP Peering Configuration 95
•   Control Plane Node Configuration 96
•   Border-PxTR Configuration (egress direction) 97
•   Border-PxTR Configuration (ingress direction) 98
•   Control-Plane Operation: Campus Fabric to non-LISP site 100
•   Control-Plane Operation: non-LISP site to Campus Fabric 105
•   Data-Plane Operation: Shared Services 109
•   Control and Data-Plane Operation: Internet 112

Chapter 8: Campus Fabric Inter-VN Connections 115

• Introduction 115
• Inter-VN EID-Prefix advertisement model 115
• Configuration 118
• Control Plane Node configuration: VRF 100_White 118
• Control Plane Node configuration: VRF 200_Grey 120
• PxTR configuration: VRF 100_Grey and VRF 200_Grey 121
• C-P Egress Operation: LISP Registration 123
• C-P Egress Operation: BGP-Update process 125
• C-P Egress Operation: BGP-Updates: PxTR 127
• C-P Egress Operation: BGP-Updates: non-LISP router 128
• C-P Ingress Operation: BGP-Updates: PxTR 129
• C-P Ingress Operation: BGP-Updates: Border-PxTR 130
• Data-Plane Operation 132
• Summary 136
• References 137

Chapter 9: Campus Fabric Redundancy 138

• Introduction 138
• CP Node Redundancy: Anycast-IP RLOC 139
• CP Node Redundancy: Core switch out of service 142
• CP-Node Redundancy: Primary CP Node Out of Service 144
• PxTR Redundancy: Priority 149
• PxTR Redundancy: Priority Configuration 150
• PxTR Redundancy: Priority Verification 151
• PxTR Redundancy: PxTR Switch-over Max. Priority) 155

Chapter 10: Inter-Site and Internet connections 161

• LISP Registration Process by iTR 162
• LISP-to-BGP redistribution by Map-Server 164
• BGP Update from PxTR to the non-LISP router 166
• BGP-to-LISP redistribution by Transit-PxTR24 167
• LISP Map-Register from Transit-PxTR24 to Map-Server CP21. 169
• Map-Request and Map-Reply process 170
• VXLAN encapsulation 171
• Non-LIPS router routing process 172
• Map-Request caused by incoming IP packet from non-LISP site 173
• Verification 174
• Internet Connection: EID to non-LISP Router 175
• Internet Connection: non-LISP Router network to LISP Site 176
• Internet Connection verification 178
• References 179

Chapter 11: The Underlay Network-SPT Algorithm 179

• Introduction 179
• OSPF 180
• Link-State Database (LSDB) optimization 181
• Shortest-Path First (SPF)/Dijkstra Algorithm 187
• SPF Run – Phase I: Building a Shortest-Path Tree 188
• First iteration round 189
• Second iteration round 190
• Third iteration round 191
• Fourth iteration round 192
• Fifth iteration round 193
• Sixth iteration round 194
• Seventh iteration round 195
• SPF Run – Phase II: Adding Leafs to Shortest-Path Tree 196
• References: 198

Chapter 12: Underlay Network – Comparison of OSPF and IS-IS 199

• Scenario-1: Interface loopback 50 down on Leaf-101 (IS-IS) 202
• Scenario-2: Interface loopback 50 down on Leaf-101 (OSPF) 204
• Scenario-3: OSPF Incremental SPF – L50 Down on Leaf-101 (Stub) 206
• Scenario-4: OSPF Incremental SPF – Interface g0/3 Down on Spine-12 (transit link does not participate in SPT) 207
• Scenario-5: IS-IS SPF – Interface g0/3 Down on Spine-12 (Full SPF computation) 208
• Scenario-6: IS-IS Incremental SPF – Interface g0/3 Down on Spine-12 (transit link does not participate in SPT) 209
• Conclusion 210
• References: 211

Appendix A. Chapter 4 Device Configurations 159

• A.1 Edge-1 Configuration 159
• A.2 Edge-2 Configuration 163
• A.3 ControlPlane Configuration 166
• A.4 ISP-Router Configuration 167

Appendix B. Chapter 7-8 Device Configurations 168

• B.1 Border-PxTR Configurations 168
• B.2 Control Plane Configurations 171
• B.3 Edge-1 Configurations 174
• B.4 Edge-2 Configurations 177
• References 183

Appendix C. Chapter 10 Device Configurations 205

• C.1 xTR14 Configurations 205
• C.2 xTR24 Configurations 207
• C.3 Co15 Configurations 209
• C.4 Co25 Configurations 209
• C.5 CP11 Configurations 210
• C.6 CP21 Configurations 212
• C.7 Transit-PxTR13 Configurations 213
• C.8 Transit-PxTR23 Configurations 215
• C.9 Inet-PxTR12 Configurations 217
• C.10 Inet-PxTR22 Configurations 219
• C.11 ISP-201 Configurations 221
• C.12 ISP-201 Configurations 221