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:This Project is open to the public and we welcome all those who would like to be involved.
:This Project is open to the public and we welcome all those who would like to be involved.


:Time is one of the key elements to improve efficiency in a distributed system. Theoretically, the performance of a distributed system depends on the synchronization of its elements. Several industries such as telecom, mobile, power, industrial, professional audio and video and many more have embraced the need for highly accurate and more importantly reliable distribution and synchronization of time and frequency across packet networks. Although the use case scenario for each of the industries is different, they all share one common thing and that is, time synchronization. Since there is a diverse need for time synchronization across different industries, driven from different use cases and applications, managing the needs of this industry chain can become a challenge.
:Time is a key element to get the highest efficiency in a distributed system. The performance of a distributed system depends on the synchronization of its elements. Several industries such as telecom, mobile, power, industrial, professional audio and video and many more have embraced the need for highly accurate and more importantly reliable distribution and synchronization of time and frequency across packet networks. Although the use case scenario for each of the industries is different, they all share one common thing and that is, time synchronization. Since there is a diverse need for time synchronization across different industries, driven from different use cases and applications, managing the needs of this industry chain becomes a challenge.


Time Appliances Project (TAP) aims to provide a platform to bring together the community, discuss, standardize and share technologies and solutions across industries with the datacenter applications and datacenter network infrastructure as the main interest. The project aims to bring together the community of datacenter operators, application developers, and equipment and semiconductor companies together to enable datacenter time-sensitive applications such as consistency in distributed systems, edge computing, AR/VR and IoT. These applications will greatly benefit from high accuracy, reliable, and scalable distribution and synchronization of time.
Time Appliances Project (TAP) aims to provide a platform to bring together, discuss, standardize and share technologies and solutions across industries with the datacenter applications and datacenter network infrastructure as the main interest. The project aims to bring together the community of datacenter operators, application developers, and equipment and semiconductor companies together to enable datacenter time-sensitive applications such as consistency in distributed systems, edge computing, AR/VR and IoT. These applications will greatly benefit from high accuracy, reliable, and scalable distribution and synchronization of time.


IEEE 1588 Precision Timing Protocol (PTP) and other synchronization methods have been adopted by various industries to maximize the efficiency of various distributed system use cases. Each use case scenario comes with a set of requirements and configurations. These configurations are collected as a ‘PTP profile’. Time appliances project aims to support the development of a PTP profile for datacenter applications and datacenter network infrastructure. The profile will cover time-sensitive applications over OCP-compliant and PTP-aware networking infrastructure such as network switches, network clocks, network interface cards, timing modules & connectors, etc. Additionally, the profile will address various requirements for high accuracy and reliable distribution and synchronization of time, such as expected performance, networking, software API, data models, deployment and telemetry. The project also aims at openness and interoperability through the use of open-source PTP software implementations for timing appliances.
IEEE 1588 Precision Timing Protocol (PTP) and other synchronization methods have been adopted by various industries to maximize the efficiency of various distributed system use cases. Each use case scenario comes with a set of requirements and configurations. These configurations are collected as a ‘PTP profile’. Time appliances project aims to support the development of a PTP profile for datacenter applications and datacenter network infrastructure. The profile will cover time-sensitive applications over OCP-compliant and PTP-aware networking infrastructure such as network switches, network clocks, network interface cards, timing modules & connectors, etc. Additionally, the profile will address various requirements for high accuracy and reliable distribution and synchronization of time, such as expected performance, networking, software API, data models, deployment and telemetry. The project also aims at openness and interoperability through the use of open-source PTP software implementations for timing appliances.
IEEE P3335 Standard for Architecture and Interfaces for Time Card defines the generic architecture and interfaces of a time card system, which constitutes a traceable source of time-of-day to heterogeneous systems that distribute and/or use that time. Additionally, this standard defines figures of merit that univocally characterize the relevant performance of the Time Card. The Time Card provides a traceable time-of-day for systems directly attached to it, as well as networked distributed systems. Such systems include, but are not limited to, servers hosting the Time Card, and servers synchronized with the Time Card using such protocols as Precision Time Protocol (PTP) or Network Time Protocol (RFC Request for Comments) 5905). This standard also defines the basic building blocks of the Time Card and their interfaces in order to allow modularization. The main building blocks include time source, local oscillator, and time processor. Additionally, this standard defines interfaces between the Time Card and other systems. This includes physical interfaces that allow input and output of time-related signals. This also includes logical interfaces that are compatible with Portable Operating System Interface for UNIX (POSIX) and include for example an interface to share a Physical Hardware Clock (PHC). This allows sharing the time of day with other systems, as well as providing means for diagnostic and configuration. The definition of logical interfaces allows for a variety of Time Card's form factors (e.g. Peripheral Component Interconnect Express (PCIe)) while ensuring uniform support from the operating system. Any device that complies with this standard provides performance figures that are obtained following the specifications of this standard. As such, different implementations of the Time Card can be easily compared in terms of performance.


Datacenter applications are the primary target of time appliances project. In addition, the project extends to related topics on time synchronization in academia, research and other industries. The time appliances project brings together the community and will be highly collaborative through technical meetings and collaboration with other OCP Projects including the Networking, Storage, Server, and Telco Projects.
Datacenter applications are the primary target of time appliances project. In addition, the project extends to related topics on time synchronization in academia, research and other industries. The time appliances project brings together the community and will be highly collaborative through technical meetings and collaboration with other OCP Projects including the Networking, Storage, Server, and Telco Projects.
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==Project Leadership==
==Project Leadership==
:- Project Lead: [mailto:ahmad.byagowi@ocproject.net Ahmad Byagowi, Ph.D.] (OCP TAP | META)
Lead:
:- Incubation Committee: [mailto:elad.wind@ocproject.net Elad Wind] (OCP | NVIDIA)
:[mailto:ahmad.byagowi@ocproject.net Ahmad Byagowi, Ph.D.] (OCP TAP / Facebook)
Incubation Committee:
:[mailto:elad.wind@ocproject.net Elad Wind] (OCP / NVIDIA)


==Workstreams==
=== Workstreams ===
{| class="wikitable sortable"
{| class="wikitable"
|-
|-
!
!
! Project !! Objective !! Lead !! Mailing List !! Status
! Project !! Objective !! POC !! Meeting Schedule
|-
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card #1]
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card Time Card]
| Development of the Time Card
| [mailto:clk@meta.com Ahmad Byagowi, Ph.D.]
|
| [https://www.opencompute.org/contributions Submitted]
|-  
|-  
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Open-Time-Server #2]
| #1
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Open-Time-Server Open Time Server]
| Open Time Server
| Development of an open time server for DC and Edge systems
| Development of an open time server for DC and Edge systems
| [mailto:dotanl@nvidia.com Dotan Levi] <br> [mailto:leoleovich@fb.com Oleg Obleukhov]
| [mailto:leoleovich@fb.com Oleg Obleukhov] & <br> [mailto:dotanl@nvidia.com Dotan Levi]
|
| rowspan="4" | discussed during project calls
| [https://www.opencompute.org/contributions Submitted]
|-
|-
| [https://www.opencompute.org/wiki/TAP_Data_Center_PTP_Profile #3]
| #2
| [https://www.opencompute.org/wiki/TAP_PTP_Profile Data Center PTP Profile]  
| Data Center PTP Profile   
| Development of a PTP Profile tailored for data center applications
| Development of a PTP Profile tailored for data center applications
| [mailto:michelouellette@meta.com Michel Ouellette]
| [mailto:michelouellette@fb.com Michel Ouellette]
|
| [https://www.opencompute.org/contributions Submitted]
|-
|-
| [https://www.opencompute.org/wiki/TAP_Precision_Time_APIs #4]
| #3
| [https://www.opencompute.org/wiki/TAP_Precision_Time_APIs Precision Time APIs]
| Precision Time API
| Time APIs to disseminate the time error (error bound) and bring accurate time to the user space
| Time APIs to disseminate the time error (error bound) and bring accurate time to the user space
| [mailto:gemicha@gmail.com Georgi Chalakov]  
| [mailto:gemicha@gmail.com Georgi Chalakov]  
| [https://ocp-all.groups.io/g/OCP-TAP-APIs OCP-TAP-APIs]
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Precise-Time-API Submitted]
|-
|-
| [https://www.opencompute.org/wiki/TAP_Oscillators #5]
| #4
| [https://www.opencompute.org/wiki/TAP_Oscillators Oscillators]
| Oscillators
| Classification and measuring of oscillators  
| Classification and measuring of oscillators
| [mailto:ggiust@sitime.com Gary Giust, Ph.D.]
| [mailto:ggiust@sitime.com Gary Giust]  
|
| [https://www.opencompute.org/contributions Submitted]
|-
|-
| [https://www.opencompute.org/wiki/TAP_PTP_Servos #6]
|  
| [https://www.opencompute.org/wiki/TAP_PTP_Servos PTP Servos]
| Overall
| Design and Implement Advanced PTP Servos
| Project meeting coordinator
| [mailto:alon.regev@keysight.com Alon Regev]
| [mailto:kelvinchukwu@fb.com Kelvin Chukwu]
|
| please send all inquiries to Kelvin
| Work in progress
|-
| [https://www.opencompute.org/wiki/TAP_Instrumentation #7]
| [https://www.opencompute.org/wiki/TAP_Instrumentation Instrumentation and Measurement]
| Open source instrumentation and measurement/testing tools for PTP
| [mailto:anand.ram@calnexsol.com Anand Ram] <br> [mailto:julianstj@fb.com Julian St. James]
|
| Work in progress
|-
| [https://www.opencompute.org/wiki/Wireless_TimeSync #8]
| [https://www.opencompute.org/wiki/Wireless_TimeSync Precision Time Synchronization over Wireless]
| Open source Implementations of Precision Time Synchronization over Wireless
| [mailto:shiga@nict.go.jp Nobuyasu Shiga, Ph.D.] <br> [mailto:julianstj@fb.com Julian St. James]
|
| Work in progress
|-
| [https://www.opencompute.org/wiki/PTM_Readiness #9]
| [https://www.opencompute.org/wiki/PTM_Readiness Precision Time Measurement Readiness Status]
| List of Hardware and Software with Precision Time Measurement Support
| [mailto:kevin.b.stanton@gmail.com Kevin Stanton, Ph.D.] <br> [mailto:julianstj@fb.com Julian St. James]
|
| Work in progress
|-
| [https://www.opencompute.org/wiki/Academia_Industry_Engagement #10]
| [https://www.opencompute.org/wiki/Academia_Industry_Engagement Time Synchronization Industry-Academia workstream (TSIAW)]
| Academic and Industry Engagement for Advancement of Precision Time Applications
| [mailto:Dan.Biederman@intel.com Dan Biederman] <br> [mailto:helbakoury@gmail.com.com Hesham Albakoury]
|
| Work in progress
|}
|}


==Get Involved==
==Get Involved==
:- [https://ocp-all.groups.io/g/OCP-TAP TAP Mailing List]
:- [https://ocp-all.groups.io/g/OCP-TAP TAP Mailing List]
:- [https://www.opencompute.org/projects/time-appliances-project-tap OCP Projects Calendar]
:- [http://opencompute.org/projects/projects-calendar/ OCP Projects Calendar]
:- [https://discord.gg/FkzE4GWmsS Join TAP Discord server]


==Documents==
==Documents==
:- [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/files/c6eee7bea1d297fe82bd18a7f38dfb1806ec1806.pdf Charter]
:- [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/files/c6eee7bea1d297fe82bd18a7f38dfb1806ec1806.pdf Charter]
:- [https://github.com/opencomputeproject/Time-Appliance-Project TAP GitHub]
:- OCP Presentation Template - please contact [mailto:michael@opencompute.org Michael Schill] or [mailto:archna@opencompute.org Archna Haylock] for a copy
:- [http://linkedin.com/company/ocp-tap TAP LinkedIn]
:- [https://www.facebook.com/ocptap TAP Facebook]
:- [https://drive.google.com/drive/folders/1EDE9Pj1eZj2sF7fUGOnVmwGTf4U6yonr?usp=sharing Google Drive Document Repository]
 
 


Release Candidates (RC) Docs
{| class="wikitable"
{| class="wikitable"
|-
|-
! Workstream !! Name !! Format !! Version !! Date  
! Worstream !! Name !! Format !! Version !! Date  
 
<!-- #1  -->
|-
| rowspan=3 style="text-align:center;"  |'''#1'''
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Open-Time-Server Open Time Server]
| Reference Architecture
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Open-Time-Server v1]
| July 28, 2021
|-
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card Time Card]
| Spec and design package
| [https://github.com/opencomputeproject/Time-Appliance-Project/tree/master/Time-Card v1]
| July 28, 2021
|-  
|-  
| [https://github.com/opencomputeproject/Time-Appliance-Project/raw/master/Precise-Time-API TAP Software]
| #1
| Software
| [https://github.com/opencomputeproject/Time-Appliance-Project Open Time Server]
| [https://github.com/opencomputeproject/Time-Appliance-Project/raw/master/Precise-Time-API/Precise%20Time%20API%201.0.docx v1]
| MD
| July 28, 2021
| v0.2
<!-- #2  -->
| June 30, 2021
|-
| rowspan=2 style="text-align:center;" |'''#2'''
| rowspan=2 |Data Center PTP Profile
| rowspan=2 |Spec
| [https://drive.google.com/file/d/18Y3r1pVkGsEuPmcHkLtuwrQbYi6s-ypM/view?usp=share_link v2]
| November 3, 2022
|-
|-
| [https://drive.google.com/file/d/1e69lDl2d-zupbbHasedUQqg-3NP0TIpt/view?usp=drivesdk v1]
| #2
| August 31, 2021
| [https://drive.google.com/file/d/1VKHN8jHgJ9WYLu4lTsgCzvG37SiaxQja/view?usp=sharing Data Center PTP Profile]
<!-- #4  -->
| PDF
| v0.3
| April 7, 2021
|-
|-
| style="text-align:center;" | '''#4'''
| [https://www.opencompute.org/documents/ocp-tap-oscillator-spec-jan-8-2022-docx-pdf Classification and Measuring of Oscillators]
| Spec
| [https://www.opencompute.org/documents/ocp-tap-oscillator-spec-jan-8-2022-docx-pdf v1]
| January 8, 2022
|}
|}
==TAP GitHub==
:- [https://github.com/opencomputeproject/Time-Appliance-Project Github Repo]
==TAP Google Drive==
:- [https://drive.google.com/drive/folders/1EDE9Pj1eZj2sF7fUGOnVmwGTf4U6yonr?usp=sharing Google Drive Document Repository]


==Regular Project Calls==
==Regular Project Calls==
* Wednesdays at 11am PST, starting on July 15th, 2020. Repeats every 2 weeks following that
:- Wednesdays at 11am PST, starting on July 15th, 2020. Repeats every 2 weeks following that
:- Please contact [mailto:kelvinchukwu@fb.com Kelvin Chukwu] to propose any agenda items


Join the meeting from your computer, tablet or smartphone:
Join the meeting from your computer, tablet or smartphone:  
* [https://opencompute-org.zoom.us/j/82085665807?pwd=cUwzaTh1UE9HZEpRRUsvVk5Db1NIQT09 Zoom Room Link]
https://global.gotomeeting.com/join/565185493                     
* Meeting ID: 820 8566 5807


Dial in
Dial in:                               
* +1 929 205 6099 US (New York)
United States (Toll Free): +1 877 309 2073                                       
* +1 301 715 8592 US (Washington DC)
United States:            +1 571 317-3129                                       
* +1 312 626 6799 US (Chicago)
Access Code:                565-185-493
* +1 253 215 8782 US (Tacoma)
* +1 346 248 7799 US (Houston)
* +1 669 900 6833 US (San Jose)


===Upcoming Calls===
==Upcoming Calls==
{| class="wikitable sortable"
{| class="wikitable"
|-
|-
!
!
! Date !! Topics !! Speakers  
! Date !! Topics !! Speakers  
|-
| #107
| <font color="green">Aug-14, 2024</font>
| <font color="green">Hybrid Machine Learning Fusion Architecture for PNT Situational Awareness</font>
| <font color="green">Stanley Radzevicius, Ph.D.</font>
|-
| #106
| <font color="green">Jul-31, 2024</font>
| <font color="green">Clocks and the Thermodynamic Limitations of Timekeeping</font>
| <font color="green">Paul Erker, Ph.D.</font>
|-
| #105
| <font color="green">Jul-17, 2024</font>
| <font color="green">Race Conditions and Exactly Once Semantics In Distributed Systems</font>
| <font color="green">Paul Borrill, Ph.D.</font>
|-
| #104
| <font color="green">Jul-3, 2024</font>
| <font color="green">Latest Trends in Crystals & Oscillators</font>
| <font color="green">Madura Fontaine</font>
|}
===Recordings from Past Calls===
====2024====
{| class="wikitable sortable"
|-
! Index !! Date !! Topics !! Speakers !! Slides
|-
|-
| #103
| Jun-19, 2024
| [https://www.youtube.com/watch?v=E5u9InD8KMU Synchronization Use Cases and Requirements for Data Center Network]
| Liuyan Han, Ph.D.
| [https://docs.google.com/presentation/d/11tXQ5C3QTkH3NFm5xTnRyWMGw-Aj9wFs/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|-
| #102
| Jun-05, 2024
| [https://www.youtube.com/watch?v=MY34daTyctY A Façade of Newtonianism in Networking and it’s Consequences]
| Paul Borrill, Ph.D.
| [https://drive.google.com/file/d/1bpWoZjxTvva9r1ua51VHOALz138qfmrQ/view?usp=sharing Slides]
|-
| #101
| May-22, 2024
| [https://www.youtube.com/watch?v=BJ96RRacvbQ Does Accurate Time Matter for Tasks that need Consensus?]
| Ken Birman, Ph.D.
| [https://docs.google.com/presentation/d/1qkp_6FwoINUjiiCEnt6U-umGMQtZe2YZ/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|-
| #100
| May-8, 2024
| [https://www.youtube.com/watch?v=UbjxwY77-2E PTP: There at the Beginning]
| John Eidson, Ph.D., Kang Lee, Doug Arnold, Ph.D.
| [https://drive.google.com/file/d/17xgPMDQ4iSSaaYqz7kBtyMnMb9L4BPv9/view?usp=sharing Slides]
|-
| #99
| Apr-24, 2024
| [https://www.youtube.com/watch?v=ukNS9Oa0U2M Real-World Optical Timekeeping]
| Marty Boyd, Ph.D.
| [https://drive.google.com/file/d/121Z-g-3GdvQClJQL_x9y7IM4rjEC0IAF/view?usp=sharing Slides]
|-
| #98
| Apr-10, 2024
| [https://www.youtube.com/watch?v=vSrWgwRFzeY Clock Coherence: from Terrestrial Microdatacenters to Interstellar Attoprobeswarms]
| Paul Borrill, Ph.D.
| [https://drive.google.com/file/d/1LtrQROT7HAcPHAVJ3Uu8BnmAJQ0nmWE5/view?usp=sharing Slides]
|-
| #97
| Mar-27, 2024
| [https://www.youtube.com/watch?v=P2jTIdlXByQ The future of UT1 vs UTC]
| Patrizia Tavella, Ph.D.
| [https://docs.google.com/presentation/d/1z9t9stZvrqVjmtDmyGRoGNBasBilt6RX/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|-
| #96
| Mar-13, 2024
| [https://www.youtube.com/watch?v=GqyVA5EtVR4 What is Time?]
| Demetrios Matsakis, Ph.D.
| [https://docs.google.com/presentation/d/1ViiniuINJPJRI7fo1dHe25HjbSFhYXqf/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|-
| #95
| Feb-28, 2024
| [https://www.youtube.com/watch?v=AQHYJOfL7Lo Reliable, Fast Failure Detection with Deterministic Interactions in Datacenters]
| Davide Rovelli
| [https://drive.google.com/file/d/1y91mD7zIzwMeHkigHD18oudCiF2qx8oL/view?usp=sharing Slides]
|-
| #94
| Feb-14, 2024
| [https://www.youtube.com/watch?v=CoEuHGUIUFw Precision Data Movement]
| Dan Biederman
| [https://drive.google.com/file/d/1-XvvyatDnU-JIeQX4hMHb2B3G7e0-QUL/view?usp=sharing Slides]
|-
| #93
| Jan-31, 2024
| [https://www.youtube.com/watch?v=jjrGzLxAqOo GNSS augmented sub-ns precision timing and 4 constellation NMA]
| Roel de Vries
| [https://drive.google.com/file/d/1pnoM8hpeWWqqJnSIA_2wSC5IJ0Ux6nLv/view?usp=sharing Slides]
|-
| #92
| Jan-17, 2024
| [https://www.youtube.com/watch?v=HkQCHocm2uU Let's talk Servos - Key to Synchronization]
| Greg Armstrong
| [https://drive.google.com/file/d/1h5P1aSmpeOw9jjzRnA9NmePsa1KB1yrl/view?usp=sharing Slides]
|-
| #91
| Jan-03, 2024
| [https://opencompute-org.zoom.us/rec/play/yaQoTC0p_O1BoD5teTp-fjILN0xcFk63jeBT6eg_38-nX-PPynd_9yXSQ6VXiWn0lywykmRNCKusCt2J.xfTJAbXEAGlSWkH7?canPlayFromShare=true&from=my_recording&continueMode=true&pwd=rl0WP5G8_oGITMjiUVMN68noSiQ09kNV&componentName=rec-play&originRequestUrl=https%3A%2F%2Fopencompute-org.zoom.us%2Frec%2Fshare%2Fa7aZ1CcfbS6vVSiNnJl8tW5P18PY4HWK9sdsZdN85rgKYLLhG0zKHv2cmtyFnNMK.VTWqgehs1rmPfHt_%3Fpwd%3Drl0WP5G8_oGITMjiUVMN68noSiQ09kNV Precision Timekeeping Applications Discussion for Optical Atomic Clocks]
| Judith Olson, Ph.D.
| [https://drive.google.com/file/d/1xnih8QwdoUMZ9akEeDFYrIOJ8OUYKJLd/view?usp=sharing Slides]
|}
====2023====
{| class="wikitable sortable"
|-
| #90
| Dec-20, 2023
| [https://opencompute-org.zoom.us/rec/share/CHpK50G-nnNOj-NIcalGSa9ZDHCCWVSWzg61BwFghuO2_c4ns9VXcfoGr9XOr3M6.KPwSaKpRtXFdbLXH?startTime=1703098102000&pwd=BnBCNHz-j4AmSU5ZYK33-6eeqh1R95Fm Atomic Clocks – Quantum theory in action for 80 years and counting]
| David Chandler
| [https://drive.google.com/file/d/1toyLLtwsKgTuVTfydHN6WVdl_L9K3Ic7/view?usp=sharing Slides]
|-
| #89
| Dec-06, 2023
| [https://opencompute-org.zoom.us/rec/share/2lad12rw_dW-prbBT6981ROdLTeGEVkzVtsJOcxhawZA2vohHy4TzbZw7DcAmTil.mJiI83pXshw6ZMCc?pwd=BoYC9ve4zfFUPZw3-ltH7iHt3S3G4fkP 5G PNT Using TV Transmitters]
| Stefan Maier
| [https://drive.google.com/file/d/1_xuypHoWuIwGeze2a-fSZrpCwFGh_1hA/view?usp=drive_link Slides]
|-
| #88
| Nov-22, 2023
| [https://opencompute-org.zoom.us/rec/play/l65hnICrPXV3TaH4he_Naf2QJVOeufy3yJa4kclmCOrKRDJxueq2nf9UTXiTWD7unH8a5Lg9KXZIGpCr.aScLUz6Txz4y_OwM?canPlayFromShare=true&from=my_recording&continueMode=true&pwd=lsn712xLW8RBYB-TWtHUKVgsekrtTwq-&componentName=rec-play&originRequestUrl=https%3A%2F%2Fopencompute-org.zoom.us%2Frec%2Fshare%2FpYIZEUNsOemmiNflzqkwrdJOyiJoXVN3natjMk20YHGcMfMDtAO6SUTl4mc_eTuX.Z-I6encFATlB8nuw%3Fpwd%3Dlsn712xLW8RBYB-TWtHUKVgsekrtTwq- Avnu Alliance: TSN Testing & Certification programs]
| Dave Cavalcanti & Genio Kronauer
| [https://drive.google.com/file/d/1PJOw1bpWK9vZ5RqJ9Tt3dEU6umRUv7kr/view?usp=drive_link Slides]
|-
| #87
| Nov-08, 2023
| [https://www.youtube.com/watch?v=AYLXprAF1Rs Pendulum: Sync your clocks with memory-safe NTP and PTP]
| David Venhoek
| [https://drive.google.com/file/d/1X2GUlF2qQBCjKnpFTr0D5u44oxG6FrpA/view?usp=sharing Slides]
|-
| #86
| Oct-25, 2023
| [https://www.youtube.com/watch?v=MOI1la4lcik Anomaly Detection in Raw GNSS Data]
| Maksim Barodzka
| [https://drive.google.com/file/d/1eIucIUHD9SJBMCE8lp8ki2ebrVRZCKKf/view?usp=drive_link Slides]
|-
| #85
| Oct-11, 2023
| [https://www.youtube.com/watch?v=czkOe3-Vl24 ÜberNIC: an Ethernet Adapter with CXL and PTM Support]
| Seth Friedman
| [https://drive.google.com/file/d/1Y7OoA4xQqerFP_NK3iVxv3Z3T6jm__Sl/view?usp=sharing Slides]
|-
| #84
| Sep-27, 2023
| [https://www.youtube.com/watch?v=JFzESUtzqes Resilient Time Systems]
| Robert Lindauer
| [https://drive.google.com/file/d/1w-CB2bqPBBM5u7He-0ci5KRP9XQDfZHi/view?usp=sharing Slides]
|-
| #83
| Sep-13, 2023
| [https://www.youtube.com/watch?v=C3oWbZ4tQPM Time in TigerBeetle]
| Joran Dirk Greef
| [https://drive.google.com/file/d/1-c9yAW3iFkCRzuD1NU9kP47Jy_ER_zZN/view?usp=sharing Slides]
|-
| #82
| Sep-06, 2023
| [https://www.youtube.com/watch?v=59NPCqKHEBk Precision Frequency Measurement over PCIe]
| Julian St. James
| [https://docs.google.com/presentation/d/1qTW_YAglMlAnUvz76P0BZidEhEjmL-5v/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|-
| #81
| Aug-30, 2023
| [https://www.youtube.com/watch?v=KdB6wCZR5hU Using Satelles LEO PNT to sync OCP-TAP applications]
| Charlie Meyer
| [https://drive.google.com/file/d/1Gg500QMU07DZsGzbFuZCI8_86pgqiQca/view?usp=sharing Slides]
|-
| #80
| Aug-23, 2023
| [https://www.youtube.com/watch?v=9OILFLV-Sfc Precision Time in the Last Centimeters with PCIe PTM: A Deeper Dive]
| Kevin Stanton, Ph.D.
| [https://docs.google.com/presentation/d/1e0Ls-H9d8yR4pjitUA0gvdg7iETZVhNe/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|-
| #79
| Aug-16, 2023
| [https://www.youtube.com/watch?v=sZO0Nxefpvw PTP Track Hound v2 - Central Monitoring Hub for Timing-Critical Infrastructure]
| Thomas Behn
| [https://drive.google.com/file/d/18KaVi2oLI3tRtlPRv6xERaBBFKbzPVNw/view?usp=sharing Slides]
|-
| #78
| Aug-02, 2023
| [https://www.youtube.com/watch?v=uDJ6W5SKM7I Digital Time Services]
| Judah Levine, Ph.D.
| [https://drive.google.com/file/d/1Xt7o4DZ8sAp8UGrd6hULQKxliUXmqEiT/view?usp=sharing Slides]
|-
| #77
| Jul-19, 2023
| [https://www.youtube.com/watch?v=f3lEPsk5nFk Quantum Time Transfer]
| David Mitlyng
| [https://drive.google.com/file/d/1Z9ma59EhhJ9aQpl8slKmCRFesHj78iVn/view?usp=sharing Slides]
|-
| #76
| Jul-05, 2023
| [https://www.youtube.com/watch?v=TbgU6OWXqI0 Secure Timing Architecture for Untrusted Edge Systems]
| Fatima Anwar Ph.D.
| [https://drive.google.com/file/d/1VBqPgoMPiuJbP3neGJ7G2xEy_hFhcRos/view?usp=drive_link Slides]
|-
| #75
| Jun-21, 2023
| [https://www.youtube.com/watch?v=K4M9MKCp1-8 The Network is The Clock: adding resilience at the network layer with vPRTC]
| Christian Farrow
| [https://drive.google.com/file/d/1k89IgcCAxQglaONoIRgjWAlOZFdpFL6-/view?usp=sharing Slides]
|-
| #74
| Jun-07, 2023
| [https://www.youtube.com/watch?v=M2fRqlKxrZA Brain's clock and Time Dissemination in the Body]
| Oliver Rawashdeh, Ph.D.
| [https://drive.google.com/file/d/1GiTpmssbvEoFKDV8PUiwb6ngRByP9LZt/view?usp=sharing Slides]
|-
| #73
| May-24, 2023
| [https://www.youtube.com/watch?v=9OLaBwWpYUo Cultivating Trust In Time]
| Ya-Shian Li-Baboud
| [https://drive.google.com/file/d/1Prf25gpgpOJAoPTeLuLGRlPDZHomE-th/view?usp=sharing Slides]
|-
| #72
| May-10, 2023
| [https://www.youtube.com/watch?v=UhuXRKVWdrY Jamming and Spoofing of GNSS Timing Devices]
| Thomas Rødningen
| [https://drive.google.com/file/d/1Dxia0kTfSHPBxuw-FscyLWtW5l-nBGw9/view?usp=sharing Slides]
|-
| #71
| Apr-26, 2023
| [https://www.youtube.com/watch?v=ACCXp0Zm1y4 PTP-based fbclock vs. HLC]
| Lu Pan
| [https://drive.google.com/file/d/1SV7Fvtdb9bau4s3Id4pqaNnJilWYIbxX/view?usp=sharing Slides]
|-
| #70
| Apr-12, 2023
| [https://www.youtube.com/watch?v=8zgnWOt5GZ0 PTM Round Table]
| L. Johnsen, K. Stanton, W. Wasko, B. Wheeler
| [https://drive.google.com/file/d/1FcZT31S3GGhB-fxqKQ-_apV2vz38vFW8/view?usp=share_link Slides]
|-
| #69
| Mar-29, 2023
| [https://www.youtube.com/watch?v=o0ZUu0Ibw18 COTS based Jitterbug Timing Measurement System]
| Myrick Wilbur, Ph.D.
| [https://drive.google.com/file/d/1g9mI16YDC-ow8iHmxQcshURhTlWXvrcU/view?usp=sharing Slides]
|-
| #68
| Mar-15, 2023
| [https://www.youtube.com/watch?v=tVT8AADKcck Integrated acoustic resonators in commercial Fin-FET technology]
| Dana Weinstein, Ph.D.
| [https://drive.google.com/file/d/1cvhG04kgPhoSMuDkPzkwB8o6lr3i07Bn/view?usp=share_link Slides]
|-
| #67
| Mar-01, 2023
| [https://www.youtube.com/watch?v=m1DGZqmDHbU Timing Resilience and Security at the Core of GNSS Technology]
| Gustavo Lopez
| [https://drive.google.com/file/d/1TKM1c1qNhhr-HZAAqUqnxOKD7EA9mIEZ/view?usp=sharing Slides]
|-
| #66
| Feb-15, 2023
| [https://www.youtube.com/watch?v=C7k7ckGubT0 Trading off Consistency and Availability in Cyber-Physical Systems]
| Edward A. Lee, Ph.D.
| [https://drive.google.com/file/d/1vZ6XE6EtGG6bBenenfsHhCJae82MP6NF/view?usp=sharing Slides]
|-
| #65
| Feb-01, 2023
| [https://www.youtube.com/watch?v=8D1HYXl_4ug SyncESMC - an ITU-T G.781 Multi-Clock ESMC Implementation]
| Vipin Sharma
| [https://docs.google.com/presentation/d/17DaakAe6mvpIGzVCOMH31n1J9usw7JSb/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|-
| #64
| Jan-18, 2023
| [https://www.youtube.com/watch?v=JEUGI9GqbeA Overview of Timestamping and Synchronization Infrastructure at the Deutsche Boerse]
| Georg Sauthoff, Ph.D.
| [https://drive.google.com/file/d/1MV1HdF1Wmkp0q_tli0U966SZP1H5lahR/view?usp=sharing Slides]
|-
| #63
| Jan-04, 2023
| [https://www.youtube.com/watch?v=g7AssLqYOTE Time & Frequency Measurements with Picosecond Streaming Time-to-Digital Converters]
| Helmut Fedder, Ph.D.
| [https://drive.google.com/file/d/1W2w3_bueBM1nox2pU-3wEckSx5WW1N_9/view?usp=sharing Slides]
|}
====2022====
{| class="wikitable sortable"
|-
| #62
| Dec-21, 2022
| [https://www.youtube.com/watch?v=yCciCdXmEKM Precision Timing for Digital Substations]
| Fred Steinhauser, Ph.D.
| [https://drive.google.com/file/d/1Im1Q5_ltfWVHkpWq9CRzuSWRBv3aJzsc/view?usp=sharing Slides]
|-
| #61
| Dec-07, 2022
| [https://www.youtube.com/watch?v=vevyOrs1Y_0 G-SINC: Global Synchronization Infrastructure for Network Clocks]
| Marc Frei
| [https://drive.google.com/file/d/1f8lCatOc5MZlx0GU5hqpiNJuFG9ejP1U/view?usp=sharing Slides]
|-
| #60
| Nov-23, 2022
| [https://www.youtube.com/watch?v=WiH4YyAjnHg Enabling Pico-Second Level Space-Time Synchronization]
| Nobuyasu Shiga, Ph.D.
| [https://drive.google.com/file/d/1GlD55agZARONkRA8AIzeky3tPP3dCQ59/view?usp=share_link Slides]
|-
| #59
| Nov-09, 2022
| [https://www.youtube.com/watch?v=7xuga7oyjqk Picosecond-Level Timing and Synchronization]
| Jamil Abo-Shaeer, Ph.D.
| [https://drive.google.com/file/d/1zbhtGYedFTii290_ZcaJnQP8-1tj09HH/view?usp=sharing Slides]
|-
| #58
| Oct-26, 2022
| [https://www.youtube.com/watch?v=GV84Ir5cbA8 The Current offerings of TCXOs, OCXOs and Rubidium Standards]
| Kory Stone
| [https://drive.google.com/file/d/1L2riFaMqAKX0bZJ5UIXxM9s8e8xkmGg9/view?usp=sharing Slides]
|-
| #57
| Oct-12, 2022
| [https://www.youtube.com/watch?v=rmvjPIjKgmc Resilient PNT Standards for Datacenters]
| Guy Buesnel
| [https://drive.google.com/file/d/1rX64Hra_6k-Ij-FgdzLa_8GmczkxS3sh/view?usp=sharing Slides]
|-
| #56
| Sep-21, 2022
| [https://www.youtube.com/watch?v=pPVos9lF1o8&ab_channel=OpenComputeProject Resilient Time for the Future]
| Leon Lobo, Ph.D.
| [https://drive.google.com/file/d/1m1WxhrXNNv7b5N0pkNLk_kCcoXL10MEX/view?usp=sharing Slides]
|-
| #55
| Sep-07, 2022
| [https://transcripts.gotomeeting.com/#/s/1db8f5e5bec92926063f3c80f75307e89d4888f43be801cbdc8125c9cdca8f14 White Rabbit for Datacenters]
| Benoit Rat
| [https://drive.google.com/file/d/1p2wZeBY2RDcec9EnvfpqVcrAeuYFjB8N/view?usp=sharing Slides]
|-
| #54
| Aug-24, 2022
| [https://transcripts.gotomeeting.com/#/s/0571a3b3785e6e0dc4e1a7ac72388aa32e949a0c0fa9c97078ab3315c18d38f7 Time Transfer Across the Network: One Hop at a Time]
| Thomas Kernen, Nir Nitzani, Bar Shapira
| [https://drive.google.com/file/d/1iyhCawVWr0-Y3m0R6l--47IVtzF09E5_/view?usp=sharing Slides]
|-
| #53
| Aug-10, 2022
| [https://www.youtube.com/watch?v=1KOGS1lniaw Graham: Synchronizing Clocks by Leveraging Local Clock Properties]
| Ali Najafi, Ph.D.
| [https://docs.google.com/presentation/d/1CS9iPW5vJxjrSzh4c6xfhUCX1-a0uPlf/edit?usp=sharing Slides]
|-
| #52
| Jul-27, 2022
| [https://www.youtube.com/watch?v=0kQUM8zY1-w PTP Automation without Validation is just making mistakes faster]
| Ariel Hendel
| [https://drive.google.com/file/d/1vkZiaTappOJ8dCb9RiKolEl6xQL1EIFs/view?usp=sharing Slides]
|-
| #51
| Jul-13, 2022
| [https://www.youtube.com/watch?v=u_inH9yPVbE Window of Uncertainty]
| Ahmad Byagowi, Ph.D.
| [https://docs.google.com/presentation/d/1QOmwQz5O25e0QwsYo2osJLT8EapIcFxd/edit#slide=id.p1 Slides]
|-
| #50
| Jun-29, 2022
| [https://www.youtube.com/watch?v=4wseAJtkhr0 GNSS Time References]
| Christian Voit
| [https://drive.google.com/file/d/1jsEDGjpU3K5c5By7lxW3tIf-PR-vVmT7/view?usp=sharing Slides]
|-
| #49
| Jun-15, 2022
| [https://www.youtube.com/watch?v=lXmyyOLxxZ0 Time Sync in Time Aware Networks]
| Dhiman Chowdhury
| [https://drive.google.com/file/d/14Jf57pbHoOCM1vPP3BDdL6jUx0dalo-_/view?usp=sharing Slides]
|-
| #48
| Jun-01, 2022
| [https://www.youtube.com/watch?v=DsttQHsf9OI Advanced TimeCard and SyncModule for datacenter synchronization]
| Nir Laufer
| [https://docs.google.com/presentation/d/1f2kQ63WBQthrot0he5iLhSAHm2jcbRlt/edit?usp=sharing&ouid=115393317224397591365&rtpof=true&sd=true Slides]
|-
| #47
| May-18, 2022
| [https://www.youtube.com/watch?v=KEyEbqnDNuY GNSS Power over Fiber System]
| Larry Conway
| [https://drive.google.com/file/d/1xnctMrsKDJn7udxB-bincLFfz44gPglC/view?usp=sharing Slides]
|-
| #46
| May-04, 2022
| [https://www.youtube.com/watch?v=EWiCwTaiM1A Optical Timekeeping Efforts at NIST]
| Jeff Sherman, Ph.D.
| [https://drive.google.com/file/d/1X1URxxz4JZTdmAp4eiglpp07_03ygUwK/view?usp=sharing Slides]


|-
|-
| #45
| Apr-20, 2022
| [https://www.youtube.com/watch?v=bBvfFCqzEC4 Precision Time Applications]
| Dan Biederman
| [https://drive.google.com/file/d/10t-jfT8sWCByCnVMNxT8vmRlSZS0a2di/view?usp=sharing Slides]
|-
| #44
| Apr-06, 2022
| [https://www.youtube.com/watch?v=heGeqkSzALs Digitized Clocking Technology, Achieving Time Sync Inside and Across a Distributed a Systems]
| Petre Minciunescu, Ph.D.
| [https://drive.google.com/file/d/1ikp-SQ2fzD19miCGQFvTa_0rtMmryK-U/view?usp=sharing Slides]
|-
| #43
| Mar-23, 2022
| [https://www.youtube.com/watch?v=93NQKXBIRKw Opening the FPGA code of the Time Card]
| Sven Meier & Thomas Schaub
| [https://drive.google.com/file/d/1vHgtRRjC_1AaNBZe0kBP1IawKhZ3fKR6/view?usp=sharing Slides]
|-
| #42
| Mar-09, 2022
| [https://www.youtube.com/watch?v=HvD3sXQTxVU Measuring and Monitoring Options for Time Sync Infrastructures]
| Heiko Gerstung
| [https://docs.google.com/presentation/d/1UT73AFPgdOfeFD8XAkt05CUIEngKynHO/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|-
| #41
| Feb-23, 2022
| [https://www.youtube.com/watch?v=PwowsxsOyQ4 A Continuous UTC; May We Get Rid of Leap Seconds?]
| Patrizia Tavella, Ph.D.
| [https://drive.google.com/file/d/1bXHs4EI1J9BRzkU4Z0pg0KCSwmfcOPT3/view?usp=sharing Slides]
|-
| #40
| Feb-09, 2022
| [https://www.youtube.com/watch?v=CAyN3RtO51A Getting Precision Time Synchronization to End Users]
| Julian St. James
| [https://drive.google.com/file/d/1ncZ-k72bzSsQoei4PPWyN0rWdt_0kOib/view?usp=sharing Slides]
|-
| #39
| Jan-26, 2022
| [https://www.youtube.com/watch?v=aAkKceA4UIk Using LEO Satellites for Time Synchronization]
| Tyler Reid, Ph.D.
| [https://drive.google.com/file/d/1HhNBkhQsh2ucdlxfKtlnPk7dhp4yNlpX/view?usp=sharing Slides]
|-
| #38
| Jan-12, 2022
| [https://www.youtube.com/watch?v=XiuAevnsWhQ Antenna Challenges for GNSS Receivers]
| Daniel Suster
| [https://drive.google.com/file/d/1PUiHj8_dsOOd6L3VnraldWSkbbajCXAF/view?usp=sharing Slides]
|}
====2021====
{| class="wikitable sortable"
|-
| #37
| Dec-15, 2021
| [https://www.youtube.com/watch?v=JgHD1CU4Ycs PCIe PTM: Timing in the Last Inch]
| Christopher Hall
| [https://drive.google.com/file/d/1OKAOjRzZHlaNoHE7USXpOyIBU0_1EytU/view?usp=sharing Slides]
|-
| #36
| Dec-01, 2021
| [https://www.youtube.com/watch?v=oPTIp3qE2Gs Application of Physical Layer Synchronization/Syntonization in a Data Center Environment]
| Med Belhadj, Ph.D.
| [https://drive.google.com/file/d/1fle9tBnJfYL-Sg_PdHkfntxOSgLoos8n/view?usp=sharing Slides]
|-
| #35
| Nov-17, 2021
| [https://www.youtube.com/watch?v=7Ot420LJUDw Oscillator Workstream Update]
| Gary Guist, Ph.D.
| [https://drive.google.com/file/d/1k9ZTTYAqdyviUKSJd_JmM8CH3LKBPf5w/view?usp=sharing Slides]
|-
|#34
| Nov-03, 2021
| [https://www.youtube.com/watch?v=coa6OkTbD5M Time Service for the Virtual Entity]
| Dotan Levi
|
|-
|#33
| Oct-20, 2021
| [https://www.youtube.com/watch?v=T1dYGiCZjc8 Squared: A P2P Overlay Network for Setting up a Scalable PTP clock Synchronization Mesh]
| Lasse Johnsen
| [https://drive.google.com/file/d/1oWJqS68MjEFX-34LW7aHZ_QlOnBL-qnm/view?usp=sharing Slides]
|-
| #32
| #32
| Oct-06, 2021
| <font color="green">Oct-6, 2021</font>
| [https://www.youtube.com/watch?v=5jbUJeHaRBU Validating PTP follower clock accuracy]
| <font color="green"></font>
| Alon Regev
| <font color="green">Alon Regev</font>
| [https://drive.google.com/file/d/1BLqaCoF8tnZtwA-jlMmfs1_xNNCR8Nd8/view?usp=sharing Slides]
 
|-
|-
| #31
| #31
| Sep-22, 2021
| <font color="green">Sep-22, 2021</font>
| [https://www.youtube.com/watch?v=nwbPtG6f7eI Transparent Clock and its Applications]
| <font color="green"></font>
| Amit Oren
| <font color="green">Amit Oren</font>
| [https://drive.google.com/file/d/1gB8uSXkX4OV7yNYUdg8JLFqNeYwYG3Et/view?usp=sharing Slides]
 
|-
|-
| #30
| #30
| Sep-08, 2021
| <font color="green">Sep-8, 2021</font>
| [https://www.youtube.com/watch?v=vj2nM9N7F9g Miniaturized Rubidium Oscillator With The Lowest SWAP Based on Double Resonance]
| <font color="green">Miniaturized Rubidium Oscillator With The Lowest SWAP Based On Double Resonance</font>
| Christian S. Ph.D., Stavros M. Ph.D., Jean-Arnold C
| <font color="green">Christian S., Stavros M., Jean-Arnold C.</font>
| [https://drive.google.com/file/d/1Uap6vcQyrY-X9sWkjE3IZCxdaWHTnWET/view?usp=sharing Slides]
 
|-
|-
| #29
| #29
| Aug-25, 2021
| <font color="green">Aug-25, 2021</font>
| [https://www.youtube.com/watch?v=MUhEbmjAweA Fearless Global Transactions using Clock Synchronization in CockroachDB]
| <font color="green">Recent Advancements in Time Synced Based Speed up for Globally Distributed Databases</font>
| Nathan VanBenschoten
| <font color="green">Nathan VanBenschoten</font>
| [https://drive.google.com/file/d/1otcpgZa4eXwfkcTTRgiOT_SqrkogOeZh/view?usp=sharing Slides]
 
|-
|-
| #28
| #28
| Aug-11, 2021
| <font color="green">Aug-11, 2021</font>
| [https://www.youtube.com/watch?v=4MAMxTgp-gg White Rabbit High Accuracy Timing]
| <font color="green">White Rabbit - High Accuracy PTP: Background and applications</font>
| Francisco Girela Lopez, Ph.D.
| <font color="green">Francisco Girela, Ph.D.</font>
| [https://drive.google.com/file/d/1lj6lauC6XSzPOqteTLr3M6aSRkKgufEO/view?usp=sharing Slides]
|-
| #27
| <font color="green">Jul-28, 2021</font>
| <font color="green">Sundial: Fault-tolerant Clock Synchronization for Datacenters</font>
| <font color="green">Gautam Kumar & Yuliang Li, Ph.D.</font>
|-
| #26
| <font color="green">Jul-14, 2021</font>
| <font color="green">Holdover Challenges in NIC Based Boundary Clocks</font>
| <font color="green">Eyal Cohen</font>
|-
|}


==Recordings from Past Calls==
{| class="wikitable"
|-
|-
| #27
!
| Jul-28, 2021
! Date !! Topics !! Speakers !! Slides  
| [https://www.youtube.com/watch?v=AUU0A9gVkvw Sundial: Fault-tolerant Clock Synchronization for Datacenters]
| Gautam Kumar & Yuliang Li, Ph.D.
| [https://drive.google.com/file/d/11caMgoSODkOvsl2gNF-dGna3dNJXdrCX/view?usp=sharing Slides]


|-
|-
| #26
| #26
| Jul-14, 2021
| Jul-14, 2021
| [https://www.youtube.com/watch?v=NlZnbndnL_A Holdover Challenges in NIC Based Boundary Clocks]
| Holdover Challenges in NIC Based Boundary Clocks
| Eyal Cohen
| Eyal Cohen
| [https://docs.google.com/presentation/d/1AtLNeFJ-j1lYHvAYR4TOdZ48U9hh34WX/edit?usp=sharing&ouid=104727018165459345315&rtpof=true&sd=true Slides]
|  


|-
|-
| #25
| #25
| Jun-30, 2021
| Jun-30, 2021
| [https://www.youtube.com/watch?v=xu1EtozIakY GNSS Anti-Jamming and Spoof Mitigation]
| GNSS Anti-Jamming and Spoof Mitigation
| Benoit Krummenacker
| Benoit Krummenacker
| [https://drive.google.com/file/d/1PHNCSBq2IndOxIK29MsHthadiUbP9NcE/view?usp=sharing Slides]
|  


|-
|-
Line 780: Line 178:
|-
|-
| #23
| #23
| Jun-02, 2021
| Jun-2, 2021
| Introduction to MAC and CSACs
| Introduction to MAC and CSACs
| Robert Lutwak, Ph.D.
| Robert Lutwak, Ph.D.
Line 793: Line 191:
|-
|-
| #21
| #21
| May-05, 2021
| May-5, 2021
| [https://www.youtube.com/watch?v=pqTsCFM6lCo White Rabbit: An Accurate Time and Frequency Transfer over Ethernet]
| [https://www.youtube.com/watch?v=pqTsCFM6lCo White Rabbit: An Accurate Time and Frequency Transfer over Ethernet]
| Maciej Lipinski, Ph.D.
| Maciej Lipinski, Ph.D.
Line 805: Line 203:
|-
|-
| #19
| #19
| Apr-07, 2021
| Apr-7, 2021
| [https://www.youtube.com/watch?v=rSsSAlP2eIA Clock and Oscillator Statistics and Characterization Techniques]  
| [https://www.youtube.com/watch?v=rSsSAlP2eIA Clock and Oscillator Statistics and Characterization Techniques]  
| [https://drive.google.com/file/d/1V8zDETnZX_PjxGYog8bKgokKqnUjR95X/view?usp=sharing Slides]
| [https://drive.google.com/file/d/1V8zDETnZX_PjxGYog8bKgokKqnUjR95X/view?usp=sharing Slides]
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| [https://drive.google.com/file/d/1H16HOlaNx4C72A3odW-Lc4_F-yrDAi_M/view?usp=sharing Slides]
| [https://drive.google.com/file/d/1H16HOlaNx4C72A3odW-Lc4_F-yrDAi_M/view?usp=sharing Slides]
|-  
|-  
 
|
|}
|
 
|
====2020====
|
{| class="wikitable sortable"
|-  
|-  
| #12
| #12
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|-
|-
| #11
| #11
| Dec-02, 2020
| Dec-2, 2020
| [https://www.youtube.com/watch?v=rVZbEKOE6jo Data Center PTP Profile, <B>Workstream #2</B> proposal]
| [https://www.youtube.com/watch?v=rVZbEKOE6jo Data Center PTP Profile, <B>Workstream #2</B> proposal]
| Michel Ouellette
| Michel Ouellette
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|-
|-
| #09
| #9
| Nov-04, 2020
| Nov-4, 2020
| [https://www.youtube.com/watch?v=rUDHKJCI3n4 Time Sync in TSNs] (History of TSN, IEEE 802.1AS Overview)
| [https://www.youtube.com/watch?v=rUDHKJCI3n4 Time Sync in TSNs] (History of TSN, IEEE 802.1AS Overview)
| Hesham ElBakoury
| Hesham ElBakoury
| [https://drive.google.com/file/d/1y1ds3bGuJcNRlHgVnmjQGeXhCfZ5sy4q/view?usp=sharing Slides]
| [https://drive.google.com/file/d/1y1ds3bGuJcNRlHgVnmjQGeXhCfZ5sy4q/view?usp=sharing Slides]
|-
|-
| #08
| #8
| Oct-21, 2020
| Oct-21, 2020
| [https://www.youtube.com/watch?v=cUPv1Gdvv9A Starter's guide to ptp4l]  
| [https://www.youtube.com/watch?v=cUPv1Gdvv9A Starter's guide to ptp4l]  
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|-
|-
| #07
| #7
| Oct-07, 2020
| Oct-7, 2020
| [https://www.youtube.com/watch?v=FIuazsKx7VY&feature=youtu.be Timing card implementation]  
| [https://www.youtube.com/watch?v=FIuazsKx7VY&feature=youtu.be Timing card implementation]  
| Ahmad Byagowi, Ph.D.
| Ahmad Byagowi, Ph.D.
Line 893: Line 289:


|-
|-
| #06
| #6
| Sep-23, 2020
| Sep-23, 2020
| [https://www.youtube.com/watch?v=Xzh3JUzbz4I Practical Use Cases of Synchronized Clocks]
| [https://www.youtube.com/watch?v=Xzh3JUzbz4I Practical Use Cases of Synchronized Clocks]
Line 900: Line 296:


|-
|-
| #05
| #5
| Sep-09, 2020
| Sep-9, 2020
| [https://www.youtube.com/watch?v=5XJXEztSDl4 Data Center PTP Profile, <B>Workstream #2</B> goals and draft spec]  
| [https://www.youtube.com/watch?v=5XJXEztSDl4 Data Center PTP Profile, <B>Workstream #2</B> goals and draft spec]  
| Michel Ouellette
| Michel Ouellette
Line 907: Line 303:


|-
|-
| #04
| #4
| Aug-26, 2020
| Aug-26, 2020
| [https://www.youtube.com/watch?v=vc1IUOw0Q4k Open Grandmaster (Open Time Server), <B>Workstream #1</B> goals and draft spec]
| [https://www.youtube.com/watch?v=vc1IUOw0Q4k Open Grandmaster (Open Time Server), <B>Workstream #1</B> goals and draft spec]
Line 914: Line 310:


|-
|-
| #03
| #3
| Aug-12, 2020
| Aug-12, 2020
| [https://www.youtube.com/watch?v=INEbH7Q_d1c TAP Vision as well as the impact of precision oscillator noise on PTP time error]
| [https://www.youtube.com/watch?v=INEbH7Q_d1c TAP Vision as well as the impact of precision oscillator noise on PTP time error]
Line 921: Line 317:


|-
|-
| #02
| #2
| Jul-29, 2020
| Jul-29, 2020
| [https://www.youtube.com/watch?v=t7eo3Aya35c Detailed Project Proposal and Discussion]
| [https://www.youtube.com/watch?v=t7eo3Aya35c Detailed Project Proposal and Discussion]
Line 928: Line 324:


|-
|-
| #01
| #1
| Jul-15, 2020
| Jul-15, 2020
| [https://www.youtube.com/watch?v=WmMM0b38mIM Proposal to launch OCP-TAP Incubation Project]
| [https://www.youtube.com/watch?v=WmMM0b38mIM Proposal to launch OCP-TAP Incubation Project]
Line 936: Line 332:
|}
|}


== Presentations & Events ==
==Presentations & Videos==
:- [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing '''TAP Vision''' | Slides]
:- [https://drive.google.com/file/d/1WAUl4JVaakqCY8e7yZlQiz5j6NhMkHPb/view?usp=sharing '''OCP TAP - Vision''']
:- [https://drive.google.com/file/d/1LC5Ld0r3U7us_jvmKeD_ZpBJaA7Kk0O4/view?usp=sharing '''TAP Presentation''' | Slides]
:- [https://drive.google.com/file/d/1LC5Ld0r3U7us_jvmKeD_ZpBJaA7Kk0O4/view?usp=sharing '''TAP Presentation''']
:- [https://drive.google.com/file/d/1RRjmGcaerDcjSKHzjfs9ob0XoldP03uQ/view?usp=sharing '''GTC 2021''': Time Synchronization in Distributed Data Centers Video] [https://drive.google.com/file/d/1H8Q4S7darJyz_LTtQq_MykvzfhD_w_6I/view?usp=sharing Slides]
:- '''2020 OCP Tech Week'''
::- Kickoff: [https://www.youtube.com/watch?v=w-IAs3E2g4U Video] [https://drive.google.com/file/d/1sYTiNuowwMfM000wOVSGXZdrjM8kxByk/view?usp=sharing Slides]
::- Synchronized Data Centers - Why Bother? [https://www.youtube.com/watch?v=fPhwjtHFLFM Video] [https://drive.google.com/file/d/1YojdzkSxHsfyyjd4nE6yBpdLDrY_jtxr/view?usp=sharing Slides]
::- Hardware Timestamping Revolution (Alternatives to Vanilla PTP): [https://www.youtube.com/watch?v=o99Wd-KAdA0 Video] [https://drive.google.com/file/d/1UuNb9mxDPvkyBpKB81-wADzGz80QWKKt/view?usp=sharing Slides]
::- Measurement and Testing Challenges in Data Centers: [https://www.youtube.com/watch?v=03sp55VqkZI Video] Slides [https://drive.google.com/file/d/13LQXu85DccbHZUto60CYUuCCXdKCOlKu/view?usp=sharing Part 1] [https://drive.google.com/file/d/1HIhEg8sp9Xg6Ki5wj2OIPzZopG_m8Nao/view?usp=sharing Part 2]
::- Data Center PTP Profile: [https://www.youtube.com/watch?v=kr4kk6k7n2Q Video] [https://drive.google.com/file/d/1P6-cG6nv7Mk9VsY1mC2sQ82lr5cJP23X/view?usp=sharing Slides]
::- Open Source Time Server (Grandmaster): [https://www.youtube.com/watch?v=00POE1HkHHo Video] [https://drive.google.com/file/d/1BKNbnSTW1Yhqlyd9UyWlFp9UN8tRBUQz/view?usp=sharing Slides]
::- Tech Demo - Open Source Time Server (Grandmaster): [https://www.youtube.com/watch?v=Y01_15SQFVQ Video] [https://drive.google.com/file/d/18qdUGyDWnh76FIlaMAl158Z5VO-MhZfq/view?usp=sharing Slides]
:- [https://drive.google.com/file/d/16EAy8Tl7SqosLlGSg5WKEA4nexWjUlAg/view?usp=sharing Impact of Oscillator Noise on PTP Time Error – Part 1]
:- [https://drive.google.com/file/d/1Kc5JdHdd2nchxbXNGm2XyBj-pXUkHk9N/view?usp=sharing Impact of Oscillator Noise on PTP Time Error – Part 2]
:- [https://drive.google.com/file/d/1TbPzJH1iiTTkr1Uy9B60Vo2h-v7l4S90/view?usp=sharing ELPROMA TAP Remarks Oct 7 2020]
 
==Recordings from Workstream Calls==
{| class="wikitable"
|-
! Workstream !! Date !! Meeting !! Slides


OCP Events
|-
:- 2023 | OCP Global Summit | TAP Track
| rowspan="14" | #4 Oscillators
:- [https://www.opencompute.org/wiki/TAP_2023_OCP_Regional_Summit 2023 | OCP Regional Summit | TAP Track]
| Jun-23 2021
:- [https://www.opencompute.org/wiki/TAP_2022_OCP_Global_Summit 2022 | OCP Global Summit | TAP Track]
| [https://drive.google.com/file/d/1qpshLJ0M9NIZ6F8Zt0pToYQiMeeuJnck/view?usp=sharing Recording]
:- [https://www.opencompute.org/wiki/TAP_2022_OCP_Tech_Week 2022 | OCP Tech Talks | TAP Track]
|
:- [https://www.opencompute.org/wiki/TAP_2021_OCP_Global_Summit 2021 | OCP Global Summit | TAP Track]
:- [https://www.opencompute.org/wiki/TAP_2020_OCP_Tech_Week 2020 | OCP Tech Week | TAP Track]


GTC
|-
:- [https://drive.google.com/file/d/1RRjmGcaerDcjSKHzjfs9ob0XoldP03uQ/view?usp=sharing '''2021 GTC | Time Synchronization in Distributed Data Centers''' | Direct Video] | [https://www.nvidia.com/en-us/on-demand/session/gtcspring21-S31889/ Webpage] | [https://drive.google.com/file/d/1H8Q4S7darJyz_LTtQq_MykvzfhD_w_6I/view?usp=sharing Slides]
| Jun-16 2021
| [https://www.youtube.com/watch?v=E-x939MMV3A Recording]
|


.
|-
:- Impact of Oscillator Noise on PTP Time Error by SiTime | [https://drive.google.com/file/d/16EAy8Tl7SqosLlGSg5WKEA4nexWjUlAg/view?usp=sharing Slides Part 1] | [https://drive.google.com/file/d/1Kc5JdHdd2nchxbXNGm2XyBj-pXUkHk9N/view?usp=sharing Slides Part 2]
| Jun-9 2021
| [https://drive.google.com/file/d/1kAGJfEMGr3ohVcbOg4W1oP17h2EPLIpI/view?usp=sharing Recording]
|


== TAP Media References ==
|-
:- [https://vimeo.com/785878343 International Timing and Sync Forum 2022 interviewing Ahmad Byagowi]
| Jun-2 2021
:- [https://www.youtube.com/watch?v=RvnG-ywF6_s "It's About Time (PTP on the Raspberry Pi)"] video from [https://www.youtube.com/channel/UCR-DXc1voovS8nhAvccRZhg Jeff Geerling Youtube Channel] explains the effort on getting PTP on the Raspberry Pi
| [https://drive.google.com/file/d/1-NCuDKgyX3BcNYXOigC_1iGxNpMkld3f/view?usp=sharing Recording]
:- [https://www.youtube.com/watch?v=JK3eTGkX6qY&t=286s "Why is this PCIe Card RADIOACTIVE?"] video from [https://www.youtube.com/channel/UCXuqSBlHAE6Xw-yeJA0Tunw Linus Tech Tips Youtube Channel] highlighting the TAP Time Card
|
:- [https://www.youtube.com/watch?v=tU0xC1ynaT8 "The most accurate Raspberry Pi clock IN THE WORLD! Can it do PTP?"] video from [https://www.youtube.com/channel/UCR-DXc1voovS8nhAvccRZhg Jeff Geerling Youtube Channel] highlighting the TAP Time Card
 
:- [https://www.youtube.com/watch?v=YKApDtJjXU4 "Put An Atomic Clock in Your PC - Open Source Time Card"] video from [https://www.youtube.com/channel/UCRjSO-juFtngAeJGJRMdIZw Gary Explains Youtube Channel] explains the TAP Time Card
|-
:- [https://www.cnet.com/tech/computing/facebook-shares-its-time-card-atomic-clock-tech-to-speed-internet-services/ "Facebook shares its Time Card atomic clock tech to speed internet services"] article from C|Net
| May-26 2021
:- [https://developer.nvidia.com/blog/nvidia-supercharges-precision-timing-for-facebooks-next-generation-time-keeping/ "Supercharges Precision Timing for Facebook’s Next-Generation Time Keeping"] developer blog from NVIDIA
| [https://drive.google.com/file/d/1TWQdRqPglIp1begJf4_CT94GlDnIyLLT/view?usp=sharing Recording]
|
 
|-
| May-19 2021
| [https://drive.google.com/file/d/1L3cF6nFC7HrlsZzoNsxx-5LBwGxmWVtt/view?usp=sharing Recording]
|
 
|-
| May-12 2021
| [https://drive.google.com/file/d/1whjaGJv005NjJH81_pIZM6doiS6_zOPK/view?usp=sharing Recording]
|
 
|-
| May-5 2021
| [https://drive.google.com/file/d/15MWS5t-Wag0LsJBebB8mPmjKatvRBjgS/view?usp=sharing Recording]
|
 
|-
| Apr-28, 2021
| [https://drive.google.com/file/d/1a6jMilj6N4zSc5n5wD0AWF9wU1jsWA5M/view?usp=sharing Recording]
|
 
|-
| Apr-21, 2021
| [https://drive.google.com/file/d/1uu3kDE5E7qBSC3ztkUBh8ocj8tn7_qH6/view?usp=sharing Recording]
|
 
|-
| Apr-14, 2021
| [https://drive.google.com/file/d/1lkECCGt6WCi9D1eYiFOizGqyPRPBhLnI/view?usp=sharing Recording]
|
|-
| Apr-7, 2021
| [https://drive.google.com/file/d/1HyR0wECmPYLHITq3Af0xYlaOWdIPlpm9/view?usp=sharing Recording]
|
 
|-
| Mar-31, 2021
| [https://drive.google.com/file/d/1P1bME9Z8jQsPGPF1msC3a825Ou-4mjol/view?usp=sharing Recording]
|
|-
| Mar-18, 2021
| [https://drive.google.com/file/d/12WmaGkLF1IUjLaAhXSzVp33pzmlYMA4J/view?usp=sharing Recording]
| [https://drive.google.com/file/d/1O2iMLKKRqtesziBLPQ9PTh23Yyg_Efx2/view Slides]
 
|}


===References & External Links===  
== References & External Links ==  
:- [https://storage.googleapis.com/pub-tools-public-publication-data/pdf/45855.pdf '''Spanner''', TrueTime & The CAP Theorem] by Eric Brewer, Google
:- [https://storage.googleapis.com/pub-tools-public-publication-data/pdf/45855.pdf '''Spanner''', TrueTime & The CAP Theorem] by Eric Brewer, Google
:- [https://www.usenix.org/conference/osdi20/presentation/li-yuliang '''Sundial''': Fault-tolerant Clock Synchronization for Datacenters] by Google Inc. and Harvard University
:- [https://www.usenix.org/conference/osdi20/presentation/li-yuliang '''Sundial''': Fault-tolerant Clock Synchronization for Datacenters] by Google Inc. and Harvard University
:- [http://www.dainf.cefetpr.br/~tacla/SDII/PracticalUseOfClocks.pdf Practical Uses of Synchronized Clocks in Distributed Systems] by Barbara Liskov  
:- [http://www.dainf.cefetpr.br/~tacla/SDII/PracticalUseOfClocks.pdf Practical Uses of Synchronized Clocks in Distributed Systems] by Barbara Liskov  
:- [https://ocp-all.groups.io/g/OCP-TAP/attachment/2/0/nsdi18-geng.pdf Stanford Paper]  
:- [https://ocp-all.groups.io/g/OCP-TAP/attachment/2/0/nsdi18-geng.pdf Stanford Paper] for reference only
:- [https://arxiv.org/pdf/2002.04269.pdf On Time Synchronization Issues in Time-Sensitive Networks with Regulators and Nonideal Clocks]  
:- [https://arxiv.org/pdf/2002.04269.pdf On Time Synchronization Issues in Time-Sensitive Networks with Regulators and Nonideal Clocks] for reference only
:- [https://drive.google.com/file/d/11MFIk9WWJ-cmjj8uWifKQnefEKvdchZE/view?usp=sharing Accurate Network Clock Synchronization at Scale]  
:- [https://drive.google.com/file/d/11MFIk9WWJ-cmjj8uWifKQnefEKvdchZE/view?usp=sharing Accurate Network Clock Synchronization at Scale] for reference only
:- [https://drive.google.com/file/d/1dpuhsC3aPNpJHD-iw0xq4K0cDjEMGG4q/view?usp=sharing Exploiting a Natural Network Effect for Scalable, Fine-grained Clock Synchronization]  
:- [https://drive.google.com/file/d/1dpuhsC3aPNpJHD-iw0xq4K0cDjEMGG4q/view?usp=sharing Exploiting a Natural Network Effect for Scalable, Fine-grained Clock Synchronization] for reference only
:- [https://drive.google.com/file/d/1OSdZfRiGYKSntjhorKdPtoP1ewQ_yKVW/view?usp=sharing SIMON: A Simple and Scalable Method for Sensing, Inference and Measurement in Data Center Networks]  
:- [https://drive.google.com/file/d/1OSdZfRiGYKSntjhorKdPtoP1ewQ_yKVW/view?usp=sharing SIMON: A Simple and Scalable Method for Sensing, Inference and Measurement in Data Center Networks] for reference only
:- [https://www.opencompute.org/blog/open-compute-project-foundation-issues-new-guidelines-for-inclusiveness New Guidelines for Inclusiveness]
:- [https://www.opencompute.org/blog/open-compute-project-foundation-issues-new-guidelines-for-inclusiveness New Guidelines for Inclusiveness] for reference only
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