What Is ACI? Cisco’s Application Centric Infrastructure (ACI) is a proprietary turnkey fabric introduced in 2014 that works with Cisco Nexus 9300/9500 series switches in ACI mode and uses Virtual Extensible LAN (VXLAN) tunnels.

Is VXLAN in ACI?

Cisco ACI uses a dedicated VRF and interfaces of the uplinks as the infrastructure to carry VXLAN traffic. The transport infrastructure for VXLAN traffic is known as Overlay-1, which exists as part of tenant Infra.

Does Cisco support VXLAN?

Cisco Nexus 7000 switches are designed for hardware-based VXLAN function. … When deployed as a VXLAN gateway, Cisco Nexus 7000 switches can connect VXLAN and classic VLAN segments to create a common forwarding domain so that tenant devices can reside in both environments.