Between two municipal DCs the metro path is plain IP, while tenant traffic uses VXLAN overlays signaled by EVPN. What does this reinforce about EVPN-VXLAN DCI?
Select an answer to reveal the explanation.
Short Explanation
The WAN can just be IP roads between border VTEPs—the overlay still rides VXLAN on top. EVPN handles the smart signaling; the underlay just has to reach those VTEP addresses. No need to turn the metro into one giant L2 LAN for DCI to work.
Full Explanation
EVPN-signaled VXLAN DCI commonly runs over an IP interconnect. Borders need IP reachability to remote VTEPs so VXLAN packets (UDP 4789) can flow; EVPN provides the overlay control plane. Mandating L2 metro E-LAN, requiring MPLS on every hop for VXLAN, or claiming plain IP forbids EVPN are misconceptions.