Van Jacobson
Encyclopedia
He joined PARC
PARC
PARC or Parc may refer to:* PARC , the Palo Alto Research Center * PARC Management, a theme park and entertainment venue operator...
as a research fellow in August 2006, and also serves as Chief Scientist for Packet Design in the adjacent Xerox complex. Prior to that, he was Chief Scientist at Cisco Systems
Cisco Systems
Cisco Systems, Inc. is an American multinational corporation headquartered in San Jose, California, United States, that designs and sells consumer electronics, networking, voice, and communications technology and services. Cisco has more than 70,000 employees and annual revenue of US$...
and group leader for the Network Research Group at Lawrence Berkeley Laboratory.
Jacobson is best known for his work in IP
Internet Protocol
The Internet Protocol is the principal communications protocol used for relaying datagrams across an internetwork using the Internet Protocol Suite...
network performance and scaling; his work redesigning TCP/IP's flow control algorithms (Jacobson's algorithm
TCP congestion avoidance algorithm
Transmission Control Protocol uses a network congestion avoidance algorithm that includes various aspects of an additive increase/multiplicative decrease scheme, with other schemes such as slow-start in order to achieve congestion avoidance....
) to better handle congestion is said to have saved the Internet from collapsing due to traffic in 1988-1989. He is also well-known for the TCP/IP Header Compression protocol described in RFC 1144, mainly meant to improve performance over low-speed links, popularly known as Van Jacobson TCP/IP Header Compression
Van Jacobson TCP/IP Header Compression
Van Jacobson TCP/IP Header Compression is a data compression protocol described in RFC 1144, specifically designed by Van Jacobson to improve TCP/IP performance over slow serial links. Van Jacobson compression reduces the normal 40 byte TCP/IP packet headers down to 3-4 bytes for the average case...
. Furthermore he has co-written a few widely used network diagnostics tools, such as traceroute
Traceroute
traceroute is a computer network diagnostic tool for displaying the route and measuring transit delays of packets across an Internet Protocol network. Traceroute is available on most operating systems....
, pathchar and tcpdump
Tcpdump
tcpdump is a common packet analyzer that runs under the command line. It allows the user to intercept and display TCP/IP and other packets being transmitted or received over a network to which the computer is attached...
.
For his work, Jacobson received the 2001 ACM
Association for Computing Machinery
The Association for Computing Machinery is a learned society for computing. It was founded in 1947 as the world's first scientific and educational computing society. Its membership is more than 92,000 as of 2009...
SIGCOMM Award
SIGCOMM Award
The SIGCOMM Award recognizes lifetime contribution to the field of communication networks.The award is presented in the annual SIGCOMM Technical Conference.The awardees are:* 2011 Vern Paxson* 2010 Radia Perlman* 2009 Jon Crowcroft* 2008 Don Towsley...
, the 2003 IEEE Koji Kobayashi Computers and Communications Award, and was elected to the National Academy of Engineering
National Academy of Engineering
The National Academy of Engineering is a government-created non-profit institution in the United States, that was founded in 1964 under the same congressional act that led to the founding of the National Academy of Sciences...
in 2006.
In January 2006 at Linux.conf.au
Linux.conf.au
linux.conf.au is Australasia's regional Linux and Open Source conference. It is a roaming conference, held in a different city every year, coordinated by Linux Australia and organised by local volunteers....
, Jacobson presented another idea about network performance improvement, which has since been referred to as network channels.
Jacobson discussed his ideas on Content-centric networking
Content-centric networking
Content-centric networking is an alternative approach to the architecture of computer networks...
http://www.parc.com/research/projects/networking/contentcentric/ in August 2006 as part of the Google Tech Talks http://www.youtube.com/watch?v=8Z685OF-PS8. This is the focus of his current work at PARC
PARC
PARC or Parc may refer to:* PARC , the Palo Alto Research Center * PARC Management, a theme park and entertainment venue operator...
.