Spine - Dci Connectivity; Spine - Dci Bgp Evpn Session - Cisco Nexus 7000 Series Configuration Manual

Spine – DCI Connectivity
• South-to-North traffic will get routed on the leaves, and ECMP is tunneled directly to the two DCIs.
• Downstream assigned per-VRF VNIDs are advertised by DCI and ACI VTEPs.
• DCI tenant configuration object model are pushed from APIC to Spine to DCI via the OpFlex framework.
• Spines advertise public BD subnet host or prefix routes for hosts directly behind a leaf, with the Spine
• Physical and underlay L3 connectivity between the DCIs and Spines can be via an infrastructure IP
Spine – DCI Connectivity
ACI Spines is directly connected or connected via an inter-POD network router to DCI gateways. Underlay
connectivity being direct or via an intermediate router does not have any bearing on the DCI gateway functions.
Spine – DCI BGP EVPN Session
BGP session between the Spine and DCI gateway can be eBGP or iBGP. eBGP is the commonly used topology.
The MPLS-L3VPN hand-off for ACI fabric can be deployed using one of the following topologies:
• Single POD with multiple DCI gateways
• Multi-POD with shared DCI gateway
• Multi-POD with Separate DCI gateway
Cisco Nexus 7000 Series NX-OS VXLAN Configuration Guide
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Any-cast IP VTEP (IP-s) as the next-hop.
network in between or via direct layer 3 sub-interfaces.
Configuring ACI WAN Interconnect