Building Data Centers with VXLAN BGP EVPN

Building Data Centers with VXLAN BGP EVPN : A Cisco NX-OS Perspective

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The complete guide to building and managing next-generation data center network fabrics with VXLAN and BGP EVPNThis is the only comprehensive guide and deployment reference for building flexible data center network fabrics with VXLAN and BGP EVPN technologies. Writing for experienced network professionals, three leading Cisco experts address everything from standards and protocols to functions, configurations, and operations.The authors first explain why and how data center fabrics are evolving, and introduce Cisco's fabric journey. Next, they review key switch roles, essential data center network fabric terminology, and core concepts such as network attributes, control plane details, and the associated data plane encapsulation.Building on this foundation, they provide a deep dive into fabric semantics, efficient creation and addressing of the underlay, multi-tenancy, control and data plane interaction, forwarding flows, external interconnectivity, and service appliance deployments. You'll find detailed tutorials, descriptions, and packet flows that can easily be adapted to accommodate customized deployments. This guide concludes with a full section on fabric management, introducing multiple opportunities to simplify, automate, and orchestrate data center network fabrics.Learn how changing data center requirements have driven the evolution to overlays, evolved control planes, and VXLAN BGP EVPN spine-leaf fabricsDiscover why VXLAN BGP EVPN fabrics are so scalable, resilient, and elastic Implement enhanced unicast and multicast forwarding of tenant traffic over the VXLAN BGP EVPN fabricBuild fabric underlays to efficiently transport uni- and multi-destination trafficConnect the fabric externally via Layer 3 (VRF-Lite, LISP, MPLS L3VPN) and Layer 2 (VPC)Choose your most appropriate Multi-POD, multifabric, and Data Center Interconnect (DCI) optionsIntegrate Layer 4-7 services into the fabric, including load balancers and firewallsManage fabrics with POAP-based day-0 provisioning, incremental day 0.5 configuration, overlay day-1 configuration, or day-2 operationsshow more

Product details

  • Paperback | 352 pages
  • 187 x 232 x 20.32mm | 580g
  • Pearson Education (US)
  • Cisco Press
  • Indianapolis, United States
  • English
  • 1587144670
  • 9781587144677
  • 400,015

About Lukas Krattiger

Lukas Krattiger, CCIE No. 21921 (Routing/Switching and Data Center), is principal engineer, Technical Marketing, with more than 15 years of experience in data center, Internet, and application networks. Within Cisco, he specializes in data center switching, overlay architectures, and solutions across platforms. Lukas is a double-CCIE (R&S and Data Center) with several other industry certifications and has participated in various technology leadership and advisory groups. Prior to joining Cisco, Lukas was a senior network engineer with System Integrators and Service Providers, where he was responsible for data center and Internet networks. Since joining Cisco, he has covered various technologies within the data center as well as enterprise networks portfolio, and he has built foundational solutions for customers and partners. He is from Switzerland and currently lives in California with his wife and one wonderful daughter. He can be found on Twitter at @ccie21921.Shyam Kapadia is a principal engineer in the Data Center Group at Cisco Systems. With more than a decade of experience in the networking industry, Shyam holds more than 30 patents and has coauthored the book Using TRILL, FabricPath, and VXLAN: Designing MSDC with Overlays. In his 10 years at Cisco, Shyam has worked on a number of products, including the Catalyst and Nexus families of switches, with special emphasis on end-to-end data center solutions, including automation and orchestration. He holds a Ph.D. and master's degree from the University of Southern California in the field of computer science. Over the past 15 years, Shyam has been the Program Chair for the Southern California Linux Exposition (SCALE). He lives in California with his wife, enjoys watching international movies, and is passionate about sports including cricket, basketball, and football.David Jansen, CCIE No. 5952 (Routing/Switching), is a distinguished systems engineer (DSE) for Cisco, specializing in data center, campus, branch/WAN, and cloud architectures. He has 20 years of experience in the industry and has earned certifications from Novell, VMware, Microsoft, TOGAF, and Cisco. His focus is working with global enterprise customers to address their challenges with comprehensive end-to-end data center, enterprise, WAN/Internet, and cloud architectures. David has been with Cisco for more than 19 years; for the last 4 years or so as a DSE, he has gained unique experiences in building next generation data center solutions. David has a bachelor's degree in computer science engineering from the University of Michigan and a master's degree in adult education from Central Michigan more

Table of contents

Introduction xvChapter 1 Introduction to Programmable Fabric 1Today's Data Center Challenges and Requirements 2The Data Center Fabric Journey 3Cisco Open Programmable Fabric 10 Fabric-Related Terminology 13Data Center Network Fabric Properties 14 Server or Endpoint Connectivity Options 15Summary 17References 17Chapter 2 VXLAN BGP EVPN Basics 21Overlays 23Introduction to VXLAN 27 VXLAN Flood and Learn (F&L) 30Introduction to BGP EVPN with VXLAN 32 MP-BGP Features and Common Practices 34 IETF Standards and RFCs 37 Host and Subnet Route Distribution 40Host Deletion and Move Events 46Summary 48References 49Chapter 3 VXLAN/EVPN Forwarding Characteristics 53Multidestination Traffic 54 Leveraging Multicast Replication in the Underlying Network 55 Using Ingress Replication 58VXLAN BGP EVPN Enhancements 60 ARP Suppression 60 Distributed IP Anycast Gateway 65 Integrated Route and Bridge (IRB) 69 Endpoint Mobility 73 Virtual PortChannel (vPC) in VXLAN BGP EVPN 76 DHCP 81Summary 85References 85Chapter 4 The Underlay 87Underlay Considerations 88 MTU Considerations 91 IP Addressing 93IP Unicast Routing 99 OSPF as an Underlay 100 IS-IS as an Underlay 102 BGP as an Underlay 103 IP Unicast Routing Summary 106Multidestination Traffic 107 Unicast Mode 107 Multicast Mode 109 PIM Any Source Multicast (ASM) 112 BiDirectional PIM (PIM BiDir) 114Summary 119References 119Chapter 5 Multitenancy 121Bridge Domains 123VLANs in VXLAN 124Layer 2 Multitenancy: Mode of Operation 129 VLAN-Oriented Mode 130 BD-Oriented Mode 131VRF in VXLAN BGP EVPN 132Layer 3 Multitenancy: Mode of Operation 134Summary 137References 138Chapter 6 Unicast Forwarding 139Intra-Subnet Unicast Forwarding (Bridging) 139Non-IP Forwarding (Bridging) 147Inter-Subnet Unicast Forwarding (Routing) 149 Routed Traffic to Silent Endpoints 158Forwarding with Dual-Homed Endpoint 164IPv6 167Summary 169Chapter 7 Multicast Forwarding 171Layer 2 Multicast Forwarding 171 IGMP in VXLAN BGP EVPN Networks 174Layer 2 Multicast Forwarding in vPC 178Layer 3 Multicast Forwarding 182Summary 184References 184Chapter 8 External Connectivity 185External Connectivity Placement 185 External Layer 3 Connectivity 189 U-Shaped and Full-Mesh Models 190 VRF Lite/Inter-AS Option A 192 LISP 195 MPLS Layer 3 VPN (L3VPN) 200 External Layer 2 Connectivity 203Classic Ethernet and vPC 204Extranet and Shared Services 206 Local/Distributed VRF Route Leaking 207 Downstream VNI Assignment 210Summary 212Reference 212Chapter 9 Multi-Pod, Multifabric, and Data Center Interconnect (DCI) 213Contrasting OTV and VXLAN 213Multi-Pod 219 Interconnection at the Spine Layer 227 Interconnection at the Leaf Layer 227Multifabric 228 Inter-pod/Interfabric 231 Interfabric Option 1: Multi-Pod 232 Interfabric Option 2: Multifabric 233 Interfabric Option 3 (Multisite for Layer 3) 235 Interfabric Option 4 (Multisite for Layer 2) 236Summary 238References 238Chapter 10 Layer 4-7 Services Integration 241Firewalls in a VXLAN BGP EVPN Network 242 Routing Mode 242 Bridging Mode 244 Firewall Redundancy with Static Routing 245 Static Route Tracking at a Service Leaf 248 Static Routing at a Remote Leaf 248 Physical Connectivity 249Inter-Tenant/Tenant-Edge Firewall 250 Services-Edge Design 254 Intra-Tenant Firewalls 254 Mixing Intra-Tenant and Inter-Tenant Firewalls 260Application Delivery Controller (ADC) and Load Balancer in a VXLAN BGP EVPN Network 262 One-Armed Source-NAT 262 Direct VIP Subnet Approach 263 Indirect VIP Subnet Approach 264 Return Traffic 265 Service Chaining: Firewall and Load Balancer 267Summary 271References 271Chapter 11 Introduction to Fabric Management 273Day-0 Operations: Automatic Fabric Bring-Up 275 In-Band Versus Out-of-Band POAP 276 Other Day-0 Considerations 278Day-0.5 Operations: Incremental Changes 279Day-1 Operations: Overlay Services Management 280Virtual Topology System (VTS) 282Nexus Fabric Manager (NFM) 282Data Center Network Manager (DCNM) 283 Compute Integration 283 Day-2 Operations: Monitoring and Visibility 285VXLAN OAM (NGOAM) 294Summary 299References 299Appendix A VXLAN BGP EVPN Implementation Options 3039781587144677, TOC, 3/16/17show more

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