Vint Cerf

Vint Cerf the American computer scientist (born 1943) who, with Robert Kahn, designed the transmission control protocol and the internet protocol, the technical foundation of the internet. Often described as a father of the internet, he has spent his career advancing networking standards, internet governance and the vision of a network connecting all the world's computers.

Early Life and Education

Vinton Gray Cerf was born on 23 June 1943 in New Haven, Connecticut. As a schoolboy he was drawn to science and mathematics, and he recalled being inspired by the mathematics and later by the computers to which he gained access at UCLA. He studied mathematics at Stanford University, graduating in 1965, and then worked at IBM for a time before returning to graduate school at the University of California, Los Angeles.

At UCLA he worked in the laboratory of Leonard Kleinrock, where the first host computer of the ARPANET was installed in 1969. Cerf earned his master's degree and then a doctorate in 1972, writing a dissertation on multiprocessor systems, and he became closely involved in the early experiments that linked computers across the country. This experience gave him a direct acquaintance with the problems of networking that would define his career.

Designing the Internet Protocols

In 1973 Cerf, then teaching at Stanford, began working with Robert Kahn of the Advanced Research Projects Agency on the problem of connecting different packet-switched networks. The challenge was to allow computers that used different hardware, transmission media and conventions to communicate as if they were part of a single network. Their solution separated the functions into distinct protocols that together became the basis of the internet.

They conceived the transmission control protocol, which managed the reliable delivery of data between applications, and the internet protocol, which handled the addressing and routing of individual packets across networks. Later the two were separated into TCP and IP, the pair still at the heart of the internet. The design was published in a landmark paper in 1974, and it made a network of networks possible by specifying only the minimum rules that every host and gateway had to obey.

Building and Standardizing the ARPANET's Successor

Cerf returned to the United States after a period at the French research institute IRIA and then joined the Advanced Research Projects Agency, where from 1976 to 1982 he managed the programmes that developed the internet protocols and demonstrated their use. He helped to organize the first tests that connected different networks with TCP/IP, and he oversaw the transition of the ARPANET to the new protocols on a day in 1983 often treated as the birth date of the internet.

He was also central to the institutions that maintained the network. He chaired the Internet Configuration Control Board and its successor, the Internet Activities Board, and he helped to establish the informal but effective processes by which technical standards were debated and agreed. This culture of open, consensus-based standardization, documented in the requests for comments that dated back to 1969, became one of the distinctive features of internet development.

Career, Research and Leadership

Cerf worked at MCI, where he led the development of an early commercial electronic mail service connected to the internet, and he later served as a vice president at Google, where he worked on internet policy and on developing-world connectivity. He has held academic positions and has been active in many organizations devoted to the growth and governance of the network, including the Internet Society, which he helped to found and later served as chairman.

He has also pursued research on internet-enabled spacecraft and interplanetary networking, working on protocols that could operate across the enormous delays and interruptions of deep space communication. In addition, he has been a strong advocate for the open and interoperable character of the internet, warning against fragmentation and calling for access that reaches all parts of the world. His public voice has helped to shape debates about the future of the network.

Recognition and Legacy

Cerf and Kahn received the Turing Award in 2004 for their work on the internet protocols, and Cerf has received the Presidential Medal of Freedom, the National Medal of Technology and Innovation, and numerous other honours. He has been a prominent figure in discussions of internet governance, digital preservation and the ethics of emerging technology, and he is known for his distinctive appearance and his tireless advocacy on behalf of the network he helped to build.

He is remembered as one of the two designers of the protocols on which the internet runs, and as a leading statesman of the network age. The principles he helped to articulate, that networks should interconnect openly and that no single authority should control them, shaped the internet as a global and decentralized system. His career spans the entire history of the internet, from its first experimental links to its present role in modern life.

References

^[1] ^[2] ^[3] ^[4]

↑ Vinton G. Cerf and Robert E. Kahn, A Protocol for Packet Network Intercommunication, IEEE Transactions on Communications, 1974.
↑ Katie Hafner and Matthew Lyon, Where Wizards Stay Up Late: The Origins of the Internet, Simon and Schuster, 1996.
↑ Andrew L. Russell, Open Standards and the Digital Age, Cambridge University Press, 2014.
↑ Janet Abbate, Inventing the Internet, MIT Press, 1999.

[r1-1] Vinton G. Cerf and Robert E. Kahn, A Protocol for Packet Network Intercommunication, IEEE Transactions on Communications, 1974.

[r2-2] Katie Hafner and Matthew Lyon, Where Wizards Stay Up Late: The Origins of the Internet, Simon and Schuster, 1996.

[r3-3] Andrew L. Russell, Open Standards and the Digital Age, Cambridge University Press, 2014.

[r4-4] Janet Abbate, Inventing the Internet, MIT Press, 1999.

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