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In the early stages of the Bufferbloat project he helped prove that applying advanced [[AQM]] and [[Fair Queuing]] techniques like ([[FQ-CoDel]]) to network packet flows would break essential assumptions in existing low priority congestion controls such as [[bittorrent]] and [[LEDBAT]] and further, that it didn't matter.<ref>{{cite conference|url=https://perso.telecom-paristech.fr/drossi/paper/rossi14comnet-b.pdf|title=Fighting the bufferbloat: on the coexistence of AQM and low priority congestion control|date=June 2013|last= Gong |last2= Rossi |last3= Testa |last4= Valenti |last5= Täht |book-title= Computer Networks|publication-date=2014|conference=INFOCOM 2013}}</ref>
In the early stages of the Bufferbloat project he helped prove that applying advanced [[AQM]] and [[Fair Queuing]] techniques like ([[FQ-CoDel]]) to network packet flows would break essential assumptions in existing low priority congestion controls such as [[bittorrent]] and [[LEDBAT]] and further, that it didn't matter.<ref>{{cite conference|url=https://perso.telecom-paristech.fr/drossi/paper/rossi14comnet-b.pdf|title=Fighting the bufferbloat: on the coexistence of AQM and low priority congestion control|date=June 2013|last= Gong |last2= Rossi |last3= Testa |last4= Valenti |last5= Täht |book-title= Computer Networks|publication-date=2014|conference=INFOCOM 2013}}</ref>


His CeroWrt project <ref name=cerowrt>{{cite web | url=https://www.bufferbloat.net/projects/cerowrt/wiki/ | title=The CeroWrt Project is complete }} </ref> showed that advanced algorithms like [[CODEL]], [[FQ-CoDel]], DOCSIS-PIE and Cake were effective at reducing network latency at no cost in throughput <ref name=cablelabs>{{cite web|url=https://www.cablelabs.com/wp-content/uploads/2014/05/Active_Queue_Management_Algorithms_DOCSIS_3_0.pdf|title=Active Queue Management Algorithms for DOCSIS 3.0 | last=White | first=Greg}}</ref> not only at low bandwidths but scaled to 10s of GB/s and could be implemented on inexpensive hardware. CeroWrt project members also helped make [[OpenWrt]] ready for [[World_IPv6_Day_and_World_IPv6_Launch_Day|IPv6 Launch Day]], and pushed all the innovations back into open source.
His CeroWrt project <ref name=cerowrt>{{cite web | url=https://www.bufferbloat.net/projects/cerowrt/wiki/ | title=The CeroWrt Project is complete }} </ref> showed that advanced algorithms like [[CODEL]], [[FQ-CoDel]], DOCSIS-PIE and Cake were effective at reducing network latency, at no cost in throughput <ref name=cablelabs>{{cite web|url=https://www.cablelabs.com/wp-content/uploads/2014/05/Active_Queue_Management_Algorithms_DOCSIS_3_0.pdf|title=Active Queue Management Algorithms for DOCSIS 3.0 | last=White | first=Greg}}</ref> not only at low bandwidths but scaled to 10s of GB/s and could be implemented on inexpensive hardware. CeroWrt project members also helped make [[OpenWrt]] ready for [[World_IPv6_Day_and_World_IPv6_Launch_Day|IPv6 Launch Day]], and pushed all the innovations back into open source.


His successor Make-Wifi-Fast project solved <ref name=endinganomaly> {{cite conference |last=Høiland-Jørgensen|first=T.|display-authors=et al.|title=Ending the Anomaly: Achieving Low Latency and Airtime Fairness in WiFi|book-title=Proceedings of the 2017 USENIX Annual Technical Conference |conference=USENIX ATC '17 July 12-14, 2017, Santa Clara, CA, USA|pp=139-151 | publication-date=2017}} </ref> the WiFi performance anomaly by extending the FQ-Codel algorithm to work on multiple WiFi chips in Linux<ref name=lwn>{{cite web | first=Jonathan | last=Corbet | url= https://lwn.net/Articles/705884/ | title=Making WiFi fast}}</ref>, reducing latency under load by up to a factor of 50.
His successor Make-Wifi-Fast project solved <ref name=endinganomaly> {{cite conference |last=Høiland-Jørgensen|first=T.|display-authors=et al.|title=Ending the Anomaly: Achieving Low Latency and Airtime Fairness in WiFi|book-title=Proceedings of the 2017 USENIX Annual Technical Conference |conference=USENIX ATC '17 July 12-14, 2017, Santa Clara, CA, USA|pp=139-151 | publication-date=2017}} </ref> the WiFi performance anomaly by extending the FQ-Codel algorithm to work on multiple WiFi chips in Linux<ref name=lwn>{{cite web | first=Jonathan | last=Corbet | url= https://lwn.net/Articles/705884/ | title=Making WiFi fast}}</ref>, reducing latency under load by up to a factor of 50.


FQ-CoDel has since become the default network queuing algorithm for ethernet and WiFi in most Linux distributions, and on iOS, and OSX. It is also widely used in packet shapers. Comcast also successfully rolled out DOCSIS-PIE AQM<ref>{{cite web | title = Improving Latency with Active Queue Management (AQM) During COVID-19 | url = https://arxiv.org/abs/2107.13968| first1 = Allen | last1= Flickinger | first2 = Carl | last2 = Klatsky | first3=Atahualpa | last3=Ledesma | first4=Jason last4 = Livingood | first5 = Sebnem | last5 = Ozer }}</ref> ​during the COVID crisis with observed 8-16x reductions in network latency under load across the millions of user devices tested.
FQ-CoDel has since become the default network queuing algorithm for ethernet and WiFi in most Linux distributions, and on iOS, and OSX. It is also widely used in packet shapers. Comcast also successfully rolled out the DOCSIS-PIE AQM ​during the COVID crisis<ref>{{cite web | title = Improving Latency with Active Queue Management (AQM) During COVID-19 | url = https://arxiv.org/abs/2107.13968| first1 = Allen | last1= Flickinger | first2 = Carl | last2 = Klatsky | first3=Atahualpa | last3=Ledesma | first4=Jason | last4 = Livingood | first5 = Sebnem | last5 = Ozer }}</ref> with observed 8-16x reductions in network latency under load across the millions of user devices tested.
In order to complete the make-wifi-fast project, by co-authoring an FCC filing <ref name=fcc>{{ cite web | url=https://ecfsapi.fcc.gov/file/60001328652.pdf | first1=Dave | last1=Taht | first2 = Vint | last2=Cerf | title = Saner Software Practices }}</ref> and co-ordinating a worldwide protest with [[Vint Cerf]], and many other early Internet pioneers, Taht successfully fought proposed FCC rules <ref name=:fccfight>{{ cite web | url=https://docs.fcc.gov/public/attachments/FCC-15-92A1.pdf | title=Amendment of Parts 0, 1, 2, 15 and 18 of the Commission’s Rules regarding Authorization of Radiofrequency Equipment }} </ref> to prohibit the installation of 3rd party firmware on home routers.<ref>{{cite web |last=Storm |first=Darlene |title=Vint Cerf and 260 experts give FCC a plan to secure wifi routers | url=https://www.computerworld.com/article/2993112/vint-cerf-and-260-experts-give-fcc-a-plan-to-secure-wi-fi-routers.html}}</ref><ref name=othercoverage>{{ cite web | last = Hruska | first = Joel | url = https://www.extremetech.com/computing/216361-vint-cerf-hundreds-of-researchers-call-on-fcc-to-mandate-open-source-router-firmware | title = Hundreds of researchers call on the fcc to mandate open source router firmware }}</ref>
In order to complete the make-wifi-fast project, by co-authoring an FCC filing <ref name=fcc>{{ cite web | url=https://ecfsapi.fcc.gov/file/60001328652.pdf | first1=Dave | last1=Taht | first2 = Vint | last2=Cerf | title = Saner Software Practices }}</ref> and co-ordinating a worldwide protest with [[Vint Cerf]], and many other early Internet pioneers, Taht successfully fought proposed FCC rules <ref name=:fccfight>{{ cite web | url=https://docs.fcc.gov/public/attachments/FCC-15-92A1.pdf | title=Amendment of Parts 0, 1, 2, 15 and 18 of the Commission’s Rules regarding Authorization of Radiofrequency Equipment }} </ref> to prohibit the installation of 3rd party firmware on home routers.<ref>{{cite web |last=Storm |first=Darlene |title=Vint Cerf and 260 experts give FCC a plan to secure wifi routers | url=https://www.computerworld.com/article/2993112/vint-cerf-and-260-experts-give-fcc-a-plan-to-secure-wi-fi-routers.html}}</ref><ref name=othercoverage>{{ cite web | last = Hruska | first = Joel | url = https://www.extremetech.com/computing/216361-vint-cerf-hundreds-of-researchers-call-on-fcc-to-mandate-open-source-router-firmware | title = Hundreds of researchers call on the fcc to mandate open source router firmware }}</ref>

Revision as of 08:33, 19 November 2021

  • Comment: Secondary sources are needed S0091 (talk) 23:40, 4 October 2021 (UTC)
Dave Täht
Dave Täht at IETF 104, March 2018.
Born (1965-08-11) August 11, 1965 (age 59)
Ocean City, New Jersey, U.S.
NationalityAmerican
Other namesMichael
Alma materRutgers University
Known forCo-Founder of the Bufferbloat Project

Dave Täht (born 1965) is an American computer scientist, musician, lecturer, asteroid exploration advocate, and Internet activist. He is the CEO of TekLibre, LLC.

Activity

Täht co-founded the Bufferbloat Project with Jim Gettys, ran the CeroWrt and Make-Wifi-Fast sub-projects, and referees the bufferbloat related mailing lists [1] and related research activities.

With a long running goal of one day building an internet with sufficiently low latency and jitter that "you could plug your piano into the wall and play with a drummer across town" [2], he isa persistent and dedicated explainer of how queues across the internet (and wifi) really work, with lectures at MIT [3], Stanford "Introduction to CoDel"., and other internet institutions such as APNIC. [4]

In the early stages of the Bufferbloat project he helped prove that applying advanced AQM and Fair Queuing techniques like (FQ-CoDel) to network packet flows would break essential assumptions in existing low priority congestion controls such as bittorrent and LEDBAT and further, that it didn't matter.[5]

His CeroWrt project [6] showed that advanced algorithms like CODEL, FQ-CoDel, DOCSIS-PIE and Cake were effective at reducing network latency, at no cost in throughput [7] not only at low bandwidths but scaled to 10s of GB/s and could be implemented on inexpensive hardware. CeroWrt project members also helped make OpenWrt ready for IPv6 Launch Day, and pushed all the innovations back into open source.

His successor Make-Wifi-Fast project solved [8] the WiFi performance anomaly by extending the FQ-Codel algorithm to work on multiple WiFi chips in Linux[9], reducing latency under load by up to a factor of 50.

FQ-CoDel has since become the default network queuing algorithm for ethernet and WiFi in most Linux distributions, and on iOS, and OSX. It is also widely used in packet shapers. Comcast also successfully rolled out the DOCSIS-PIE AQM ​during the COVID crisis[10] with observed 8-16x reductions in network latency under load across the millions of user devices tested.

In order to complete the make-wifi-fast project, by co-authoring an FCC filing [11] and co-ordinating a worldwide protest with Vint Cerf, and many other early Internet pioneers, Taht successfully fought proposed FCC rules [12] to prohibit the installation of 3rd party firmware on home routers.[13][14]

He has been intensely critical of the academic network research community, extolling open access, open source code and the value of negative and repeatable results. [15]

As one of the instigators of the IETF AQM and Packet Scheduling work ing group[16], he is the co-author of RFC8290 [17], and a contributor to RFC8289 [18] (CODEL), RFC7567 [19], RFC8034[20], RFC7928[21], RFC7806 [22], and RFC8033[23]. He also made contributions to the DOCSIS 3.1 standard.

In 2018, with John Gilmore, and Paul Wouters, he began the IPv4 Unicast Extensions Project[24]. Their Internet drafts proposing allowing unicast use of up to 419 million new IPv4 addresses from the formerly reserved Class E (240/4), 0/8, and the zeroth addresses were presented at the IETF 110 conference [25].

He is a filksinger, often performing songs like "It GPLs me"[26], and "One First Landing" at various computer and science fiction conventions.

He serves on the Commons Conservancy[27] board of directors.

References

  1. ^ "Bufferbloat.net mailing lists".
  2. ^ Täht, Dave (June 2013). "Towards imperceptible latency" (PDF).
  3. ^ "What's wrong with WiFi".
  4. ^ McFillin, Adam. "Bufferbloat might be solved but it's not over yet".
  5. ^ Gong; Rossi; Testa; Valenti; Täht (June 2013). "Fighting the bufferbloat: on the coexistence of AQM and low priority congestion control" (PDF). Computer Networks. INFOCOM 2013 (published 2014).
  6. ^ "The CeroWrt Project is complete".
  7. ^ White, Greg. "Active Queue Management Algorithms for DOCSIS 3.0" (PDF).
  8. ^ Høiland-Jørgensen, T.; et al. (2017). "Ending the Anomaly: Achieving Low Latency and Airtime Fairness in WiFi". Proceedings of the 2017 USENIX Annual Technical Conference. USENIX ATC '17 July 12-14, 2017, Santa Clara, CA, USA. pp. 139–151.
  9. ^ Corbet, Jonathan. "Making WiFi fast".
  10. ^ Flickinger, Allen; Klatsky, Carl; Ledesma, Atahualpa; Livingood, Jason; Ozer, Sebnem. "Improving Latency with Active Queue Management (AQM) During COVID-19".
  11. ^ Taht, Dave; Cerf, Vint. "Saner Software Practices" (PDF).
  12. ^ "Amendment of Parts 0, 1, 2, 15 and 18 of the Commission's Rules regarding Authorization of Radiofrequency Equipment" (PDF).
  13. ^ Storm, Darlene. "Vint Cerf and 260 experts give FCC a plan to secure wifi routers".
  14. ^ Hruska, Joel. "Hundreds of researchers call on the fcc to mandate open source router firmware".
  15. ^ Taht, Dave. "The value of repeatable experiments and negative results" (PDF).
  16. ^ "IETF Active Queue Management and Packet Scheduling Working Group".
  17. ^ Hoeiland-Joergensen, Toke (January 2018). The Flow Queue CoDel Packet Scheduler and AQM algorithm. IETF. doi:10.17487/RFC8290. RFC 8290.
  18. ^ Nichols, K.; Jacobson, V.; McGregor, A.; Iyengar, J. (Jan 2018). Controlled Delay Active Queue Management. IETF. doi:10.17487/RFC8289. RFC 8289.
  19. ^ RFC 7567. doi:10.17487/RFC7567.
  20. ^ RFC 8034. doi:10.17487/RFC8034.
  21. ^ RFC 7928. doi:10.17487/RFC7928.
  22. ^ RFC 7806. doi:10.17487/RFC7806.
  23. ^ RFC 8033. doi:10.17487/RFC8033.
  24. ^ https://github.com/schoen/unicast-extensions. {{cite web}}: Missing or empty |title= (help)
  25. ^ [somewere "INTAREA 110 proceedings"]. {{cite web}}: Check |url= value (help)
  26. ^ "It Gpl's me".
  27. ^ "The guts of The Commons Conservancy".


Category:Living people Category:Free software programmers Category:American computer programmers Category:Linux people Category:1965 births Category:Internet activists Category:American technology company founders


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