Cisco ACI uses Link Layer Discovery Protocol (LLDP) to discover and build the network topology that includes the Distributed Virtual Switch (DVS) hosted in the hypervisor. To enable this functionality, select the checkbox next to Include Fabric Management Address in LLDP Messages on the Create Fabric screen, as shown in the following figure, during deployment.
lldp management-addr-tlv ipv4 virtual-ip
and save the configuration. After creating the SmartFabric (see Create SmartFabric) and creating the uplink (see Create Uplink), the VMs display in the APIC under the Tenants tab after configuring vCenter. Select the Tenant and click Networking to view the network topology.