Peter Löthberg

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Peter Löthberg (born 1960) is a Swedish technology entrepreneur. He played a role in the growth of the Internet in Sweden[1] and was the de facto architect of EBONE (European Backbone), a pan-European Internet backbone, during its lifetime.[2] He was the designer of Cisco's GSR12000 backbone router technology and the TeraStream architecture, along with Guenter Honisch.[3][4] He was involved with Sprint's Internet infrastructure strategy.[3][5][6] Löthberg is the owner of telecommunications company Swedish Telecom Development and Product Innovation (STUPI).

Early life[edit]

Löthberg was born in 1960 in Karlstad, Sweden. He founded STUPI in the late 1970s before reaching the age of 20.


He worked as a consultant for his town as well as the Swedish Armed Forces. In the 1980s, he moved to Stockholm and began developing laser printer technology. During this time he built a private mainframe center called the Colossal Cave Computer Center, near Mariatorget at Söder, consisting of DEC-10 minicomputers.[1] In 1993, Löthberg established a Swedish NTP server using STUPI AB.

Löthberg submitted several patent applications to the United States Patent and Trademark Office. While some are pending, others were granted, such as the technology used for monitoring optical performance in an optical data transmission network.[7]

In the mid-1990s, Löthberg began working for Cisco and Sprint.[1] Since 2010, he has worked primarily for Deutsche Telekom as a chief architect with the project TeraStream.

Personal life[edit]

He resides in Sunnyvale, California.


Löthberg co-founded the Nordic University Computer Clubs Conference (NUCCC) together with Carl and Jacob Hallén. He made important contributions to the Internet Engineering Task Force.[8]

In 2005, Löthberg was awarded the IP prize by the Swedish Network Users' Society (SNUS).[9] In 2007, he installed a 40-gigabit Internet connection for his mother Sigbritt Löthberg, (reported as the world's fastest private Internet connection at that time)[10] to prove a modulation technique that can transfer data between routers separated by a distance of 2,000 kilometers.[11]


  1. ^ a b c Utgavan, Andra (2009). "De Byggde Internet I Sverige" (PDF). Retrieved 2018-12-30.
  2. ^ Martin, Olivier (2012). The “Hidden” Prehistory of European Research Networking. Bloomington, IN: Trafford Publishing. ISBN 9781466938724.
  3. ^ a b "The Top 10 Movers and Shakers in Optical Networking". Light Reading. Retrieved 2018-12-30.
  4. ^ Matsumoto, Craig (December 17, 2012). "DT's All-Cisco, No-Optical Network". Light Reading. Retrieved 2018-12-30.
  5. ^ Gregory, Nathan (2016). Securing the Network. Lulu. p. 215. ISBN 9781387823369.
  6. ^ Sorrel, Charlie (2007-07-16). "World's Fastest Home Internet Connection: 40 Gigabits per Second". Wired. ISSN 1059-1028. Retrieved 2018-12-30.
  7. ^ "Peter Lothberg Inventions, Patents and Patent Applications - Justia Patents Search". Retrieved 2018-12-30.
  8. ^ Gram, Christian; Rasmussen, Per; Østergaard, Søren (2015). History of Nordic Computing 4. Cham: Springer. p. 212. ISBN 9783319171449.
  9. ^ "Snus gav Peter Löthberg pris". Computer Sweden (in Swedish). Retrieved 2018-12-30.
  10. ^ Modine, Austin (12 Jul 2007). "75-year-old has world's fastest private internet connection". Retrieved 2018-12-31.
  11. ^ Rothman, Wilson. "40-Gigabit Granny Used World's Fastest Connection to Dry Laundry". Gizmodo. Retrieved 2018-12-31.