Halvor Bothner-By (August 20, 1938 - June 13, 2014) was a telecommunication engineer of the Norwegian Telecommunications Administration.
He was a
rapporteur on
packet switching
In telecommunications, packet switching is a method of grouping Data (computing), data into short messages in fixed format, i.e. ''network packet, packets,'' that are transmitted over a digital Telecommunications network, network. Packets consi ...
for the
CCITT
The International Telecommunication Union Telecommunication Standardization Sector (ITU-T) is one of the three Sectors (branches) of the International Telecommunication Union (ITU). It is responsible for coordinating standards for telecommunicat ...
. As such, he chaired the group that, in March 1975, proposed to the CCITT Recommendation X.2x on
virtual circuits to be offered by public networks. After its unanimous approval at the May 1976 CCITT plenary, it became the well-known protocol
X.25
X.25 is an ITU-T standard protocol suite for Packet switched network, packet-switched data communication in wide area network, wide area networks (WAN). It was originally defined by the CCITT, International Telegraph and Telephone Consultative Co ...
.
He was also renowned for having coined the term ''
datagram
A datagram is a basic transfer unit associated with a packet-switched network. Datagrams are typically structured in header and payload sections. Datagrams provide a connectionless communication service across a packet-switched network. The de ...
'' in the early seventies on a train between Paris and Rennes on the way to attend a CEPT Rapporteur meeting.
[
X.25 Virtual Circuits — Transpac in France — Pré-Internet Data Networking]
References
1938 births
2014 deaths
Telecommunications engineers
20th-century Norwegian engineers
X.25
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