1. IEEE802.3: http://www.ieee802.org/3/index.html
2. OIF: Optical Internetworking Forum : http://www.oiforum.com/
3. Cisco, Cisco Global Cloud Index(2016-2021): https://www.cisco.com/c/dam/en/us/solutions/collateral/service-provider/global-cloud-index-gci/white-paper-c11-738085.pdf
4. IEEE802.3bs: http://www.ieee802.org/3/bs/index.html
5. IEEE802.3cd: http://www.ieee802.org/3/cd/index.html