book

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

by Lukas Krattiger, Shyam Kapadia, David Jansen

March 2017

Intermediate to advanced

352 pages

11h 11m

English

Cisco Press

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Today’s Data Center Challenges and RequirementsThe Data Center Fabric JourneyCisco Open Programmable FabricFabric-Related TerminologyData Center Network Fabric PropertiesServer or Endpoint Connectivity OptionsSummaryReferences
OverlaysIntroduction to VXLANVXLAN Flood and Learn (F&L)Introduction to BGP EVPN with VXLANMP-BGP Features and Common PracticesIETF Standards and RFCsHost and Subnet Route DistributionHost Deletion and Move EventsSummaryReferences
Multidestination TrafficLeveraging Multicast Replication in the Underlying NetworkUsing Ingress ReplicationVXLAN BGP EVPN EnhancementsARP SuppressionDistributed IP Anycast GatewayIntegrated Route and Bridge (IRB)Endpoint MobilityVirtual PortChannel (vPC) in VXLAN BGP EVPNDHCPSummaryReferences
Underlay ConsiderationsMTU ConsiderationsIP AddressingIP Unicast RoutingOSPF as an UnderlayIS-IS as an UnderlayBGP as an UnderlayIP Unicast Routing SummaryMultidestination TrafficUnicast ModeMulticast ModePIM Any Source Multicast (ASM)BiDirectional PIM (PIM BiDir)SummaryReferences
Bridge DomainsVLANs in VXLANLayer 2 Multitenancy: Mode of OperationVLAN-Oriented ModeBD-Oriented ModeVRF in VXLAN BGP EVPNLayer 3 Multitenancy: Mode of OperationSummaryReferences
Intra-Subnet Unicast Forwarding (Bridging)Non-IP Forwarding (Bridging)Inter-Subnet Unicast Forwarding (Routing)Routed Traffic to Silent EndpointsForwarding with Dual-Homed EndpointIPv6Summary
Layer 2 Multicast ForwardingIGMP in VXLAN BGP EVPN NetworksLayer 2 Multicast Forwarding in vPCLayer 3 Multicast ForwardingSummaryReferences
External Connectivity PlacementExternal Layer 3 ConnectivityU-Shaped and Full-Mesh ModelsVRF Lite/Inter-AS Option ALISPMPLS Layer 3 VPN (L3VPN)External Layer 2 ConnectivityClassic Ethernet and vPCExtranet and Shared ServicesLocal/Distributed VRF Route LeakingDownstream VNI AssignmentSummaryReference
Contrasting OTV and VXLANMulti-podInterconnection at the Spine LayerInterconnection at the Leaf LayerMultifabricInter-pod/InterfabricInterfabric Option 1: Multi-podInterfabric Option 2: MultifabricInterfabric Option 3 (Multisite for Layer 3)Interfabric Option 4 (Multisite for Layer 2)SummaryReferences
Firewalls in a VXLAN BGP EVPN NetworkRouting ModeBridging ModeFirewall Redundancy with Static RoutingStatic Route Tracking at a Service LeafStatic Routing at a Remote LeafPhysical ConnectivityInter-Tenant/Tenant-Edge FirewallServices-Edge DesignIntra-Tenant FirewallsMixing Intra-Tenant and Inter-Tenant FirewallsApplication Delivery Controller (ADC) and Load Balancer in a VXLAN BGP EVPN NetworkOne-Armed Source-NATDirect VIP Subnet ApproachIndirect VIP Subnet ApproachReturn TrafficService Chaining: Firewall and Load BalancerSummaryReferences
Day-0 Operations: Automatic Fabric Bring-UpIn-Band Versus Out-of-Band POAPOther Day-0 ConsiderationsDay-0.5 Operations: Incremental ChangesDay-1 Operations: Overlay Services ManagementVirtual Topology System (VTS)Nexus Fabric Manager (NFM)Data Center Network Manager (DCNM)Compute IntegrationDay-2 Operations: Monitoring and VisibilityVXLAN OAM (NGOAM)SummaryReferences
EVPN Layer 2 ServicesEVPN IP-VRF to IP-VRF ModelReferences

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Acknowledgments

From Lukas Krattiger:

First, I’d like to thank my coauthors, Shyam Kapadia and David Jansen. Shyam, thank you for being such a great coworker and a true technical leader in our organization. I could not imagine anyone better. It has been truly wonderful sharing ideas with you, and I look forward to addressing additional challenges and innovations with you in the near future. David, thank you for stepping in to help tackle this project. You are an exceptional colleague, and it was a true pleasure working with you these many engagements, especially the video series. Each of us has unique insights and gifts to contribute, and both you and Shyam highlight the benefits the diversity in our community provides.

Likewise, I would like ...