1. GitHub - cisco/open-nFAPI: An open source implementation of the Small Cell Forum’s Network Functional API (nFAPI).
https://github.com/cisco/open-nFAPI
2. Linkerd.
https://linkerd.io
3. Ryu SDN Framework.
https://osrg.github.io/ryu/
4. Small Cell Forum Releases.
http://scf.io/en/documents/082_-_nFAPI_and_FAPI_specifications.php
5. What is 5G?
https://www.cisco.com/c/en/us/solutions/what-is-5g.html