A city interconnects two EVPN-VXLAN sites where Site A uses VNI 10000 for a tenant segment and Site B uses VNI 20000 for the same logical tenant. What does stitching at the DCI border primarily provide in this design?
Select an answer to reveal the explanation.
Short Explanation
Think of two city buildings that numbered the same department differently—stitching is the bilingual receptionist at the border. The DCI gateway translates VNI 10000 to VNI 20000 so the tenant still talks without forcing a citywide renumber. Overlay identity can differ per site while the business segment stays connected.
Full Explanation
EVPN-VXLAN stitching joins overlay domains that may use different VNI spaces. At the border, the stitch maps tenant segments so MAC/IP reachability continues without requiring identical VNIs on every site. Renaming every local VNI, collapsing to a fabric-wide VLAN, or dropping VXLAN entirely are not what VNI-translation stitching is for.