John M. McQuillan
Encyclopedia
John M. McQuillan is an American computer scientist
, known for studies of adaptive routing
in the early ARPANET
.
He received his A.B.
(1970), M.S.
(1971) and Ph.D.
(1974) in applied mathematics
from Harvard University
. He was at the same
time (since 1971) employed at the equipment manufacturer Bolt, Beranek and Newman in Cambridge, MA, where he programmed the Interface Message Processor
, work that in part led to his dissertation Adaptive routing for distributed computer networks advised by Jeffrey P. Buzen
(1974), in which McQuillan developed ways to reroute messages around faulty and congested areas in the Internet
based on delay feedback.
These mechanisms were used in the first link-state routing protocols (1978).
He also edited the two early introductions to networking, Understanding the new local network technologies (BBN, 1978) and A practical view of computer communications protocols (IEEE, 1978).
He started McQuillan Consulting in Concord, MA (1982), became a columnist to Business Communications Review as well as an annual organizer of the Next Generation Network (NGN) conferences. He became partner in International Venture Partner (1996). Today, he is the director of McQuillan Ventures, that invests in network infrastructure companies.
Computer scientist
A computer scientist is a scientist who has acquired knowledge of computer science, the study of the theoretical foundations of information and computation and their application in computer systems....
, known for studies of adaptive routing
Adaptive routing
Adaptive routing describes the capability of a system, through which routes are characterized by their destination, to alter the path that the route takes through the system in response to a change in conditions...
in the early ARPANET
ARPANET
The Advanced Research Projects Agency Network , was the world's first operational packet switching network and the core network of a set that came to compose the global Internet...
.
He received his A.B.
Bachelor of Arts
A Bachelor of Arts , from the Latin artium baccalaureus, is a bachelor's degree awarded for an undergraduate course or program in either the liberal arts, the sciences, or both...
(1970), M.S.
Master of Science
A Master of Science is a postgraduate academic master's degree awarded by universities in many countries. The degree is typically studied for in the sciences including the social sciences.-Brazil, Argentina and Uruguay:...
(1971) and Ph.D.
Ph.D.
A Ph.D. is a Doctor of Philosophy, an academic degree.Ph.D. may also refer to:* Ph.D. , a 1980s British group*Piled Higher and Deeper, a web comic strip*PhD: Phantasy Degree, a Korean comic series* PhD Docbook renderer, an XML renderer...
(1974) in applied mathematics
Applied mathematics
Applied mathematics is a branch of mathematics that concerns itself with mathematical methods that are typically used in science, engineering, business, and industry. Thus, "applied mathematics" is a mathematical science with specialized knowledge...
from Harvard University
Harvard University
Harvard University is a private Ivy League university located in Cambridge, Massachusetts, United States, established in 1636 by the Massachusetts legislature. Harvard is the oldest institution of higher learning in the United States and the first corporation chartered in the country...
. He was at the same
time (since 1971) employed at the equipment manufacturer Bolt, Beranek and Newman in Cambridge, MA, where he programmed the Interface Message Processor
Interface Message Processor
The Interface Message Processor was the packet-switching node used to interconnect participant networks to the ARPANET from the late 1960s to 1989. It was the first generation of gateways, which are known today as routers. An IMP was a ruggedized Honeywell DDP-516 minicomputer with...
, work that in part led to his dissertation Adaptive routing for distributed computer networks advised by Jeffrey P. Buzen
Jeffrey P. Buzen
Jeffrey Peter Buzen is an American computer scientist in system performance analysis best known for his contributions to queueing theory. His 1971 doctoral thesis Computational algorithms for closed queueing networks with exponential servers has guided the study of queueing network modeling.Born...
(1974), in which McQuillan developed ways to reroute messages around faulty and congested areas in the Internet
Internet
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite to serve billions of users worldwide...
based on delay feedback.
These mechanisms were used in the first link-state routing protocols (1978).
He also edited the two early introductions to networking, Understanding the new local network technologies (BBN, 1978) and A practical view of computer communications protocols (IEEE, 1978).
He started McQuillan Consulting in Concord, MA (1982), became a columnist to Business Communications Review as well as an annual organizer of the Next Generation Network (NGN) conferences. He became partner in International Venture Partner (1996). Today, he is the director of McQuillan Ventures, that invests in network infrastructure companies.