If your organization uses both Netdisco and Cisco ACI, you might be interested in one of our latest Open Source projects: nd2-worker-plugin-aci.
This extension uses the APIC REST API to integrate the fabric’s switch port to MAC address and MAC address to ARP entry mappings seamlessly into the Netdisco database.
Licensed under the same liberal BSD license as Netdisco itself, the plugin is completely free to use, modify and redistribute.