Core Faculty - John Day

John Day

Master Lecturer, Computer Science

John Day has been involved in research and development of computer networks since 1970, when his group at the University of Illinois was the 12th node on ARPANet (precursor to the internet), and has developed and designed protocols for everything from the data link layer to the application layer. Along with making fundamental contributions to research on distributed databases, Mr. Day managed the development of the OSI reference model as well as naming and addressing. He was a major contributor to the upper-layer architecture and the development of network management architecture, working in the area since 1984 and building and deploying LAN products and a network management system, a decade ahead of comparable systems. Day has published Patterns in Network Architecture: A Return to Fundamentals (Prentice Hall, 2008), which analyzes the fundamental flaws in the internet and proposes what appears to be the only path forward. Today, Mr. Day splits his time between making this new path a reality and teaching at Boston University. He is also a recognized scholar in the history of cartography, focusing on seventeenth-century China, and is past president of the Boston Map Society.

Research Interests

  • Computing systems architecture
  • Naming and addressing
  • Distributed Systems
  • Congestion Management
  • Distributed Resource Allocation
  • Improving the Efficiency of Insights


  • MET CS 535 Computer Networks
  • MET CS 575 Operating Systems
  • MET CS 635 Network Design and Implementation
  • MET CS 775 Advanced Networking

Scholarly Works


Patterns in Network Architecture: A Return to Fundamentals (Prentice Hall, 2008).


“The Clamor Outside as INWG Debated: Economic War Comes to Networking.” IEEE Annals of the History of Computing 38, no. 3 (July–September 2016).

“18th Century Intrigue: The Dutch Pirate a French Atlas Leaked from the Imperial Court of China.” Book review of Jesuit Mapmaking in China: D’Anville’s ‘Nouvelle Atlas de la Chine’ (1737) in Imago Mundi 67, no. 2 (2015): 248–249.

“Be Careful What You Wish For: Caution on Net Neutrality.” High Tech Forum, November 2014.

“Edizioni a stampa e copie manoscritte delle carte geografiche di Matteo Ricci.” In La Cartografia di Matteo Ricci, edited by Filippo Mignini (Libreria dello Stato, Istituto poligrafico e Zecca dello Stato, 2013): 5–34.

“The Mappa Mundi of Matteo Ricci.” Miscellanea Bibliothecae Apostolicae Vaticanae VI:  Collectanea in Honorem Rev.Mi Patris Leonardi E. Boyle, O.P. Città del Vaticano: Apostolica Vaticana (1998).

“The (Un)Revised OSI Reference Model.” ACM SIGCOMM Computer Communication Review, October 1995.

“The Search for the Origins of the Chinese Manuscripts of Matteo Ricci’s Maps.” Imago Mundi 47 (1995): 94–117.

“The Voretzsch/Howell Ricci Map: A Peculiar Puzzle.” The Map Collector, no. 72 (Autumn 1995).

“A Neolithic Whaling Tradition in Korea.” Kendall Whaling Museum Symposium, short paper, 1990.

“Terminal Protocols.” In Computer Network Protocols and Architectures, edited by Paul Green (Springer, Boston, MA, 1981): 437–457.

“Terminal Protocols.” IEEE Transactions on Communications 28, no. 4 (April 1980): 585–593.

Day, J., and Bunch, S. “Control Structure Overhead in TCP.” In Proceedings: Trends and Applications IEEE, May 1980.


“Back to the Future: A Journey from Science to Craft . . . and Back?” Keynote Address, Future Internet Assembly, Budapest, Hungary, May 2011.

Trouva, E., Grasa, E., Day, J., Matta, I., Chitkushev, L., Phelan, P., Ponce de Leon, M., and Bunch, S. “Is the Internet an unfinished demo? Meet RINA!” TERENA Networking Conference, Prague, CzechRepublic, May 2011.

John Day and Joe Hughes. “Issues and Options for Advanced Networking Infrastructure for Energy Systems.” Grid Interop Conference, Atlanta, October 2008.

“A Principle for Resilient Sharing of Distributed Resources.” With P. A. Alsberg, 2nd International Conference on Software Engineering, October 1976.