Connectivity Guide

Example: VXLAN with BGP EVPN
This VXLAN with BGP EVPN example uses a typical Clos leaf-spine topology with VXLAN tunnel endpoints (VTEPs). Individual switch
conguration shows how to set up an end-to-end VXLAN. eBGP is used for exchanging IP routes in the IP underlay network, and EVPN
routes in the VXLAN overlay network. All spine nodes are in one autonomous system — AS 65001. All leaf nodes are in another
autonomous system — AS 65002.
• On VTEPs 1 and 2: Access ports are assigned to the virtual network using a switch-scoped VLAN. EVPN is congured using auto-EVI
mode.
• On VTEP 3: Access ports are assigned to the virtual network using a port-scoped VLAN. The EVPN instance is congured using
manual conguration mode. The Route Distinguisher and Route Target are congured using auto-EVI mode.
• On VTEP 4: Access ports are assigned to the virtual network using a port-scoped VLAN. EVPN is congured using manual
conguration mode, including the EVPN instance, Route Distinguisher, and Route Target.
Figure 8. VXLAN BGP EVPN use case
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VXLAN