List of PTP implementations explained

Precision Time Protocol (PTP) is a widely adopted protocol for delivery of precise time over a computer network. A complete PTP system includes PTP functionality in network equipment and hosts. PTP may be implemented in hardware, software or a combination of both.

PTP is implemented in end systems and in PTP-aware networking hardware. PTP implementations may have the ability to serve as a source of time for the network, a grandmaster, or operate as a slave and receive time and synchronize to the grandmaster. Some implementations are able to operate as either master or slave.

Routers and switches

• Artel Quarra 1 Gbps PTP Ethernet Switch^[1]
• Artel Quarra PTP 10 Gbps Ethernet Switch^[2]
• ACRA Control, Limited (now Curtiss-Wright^[3]) airborne switches^{[4] [5]}
• Alcatel-Lucent (now Nokia Networks^[6]) 7210 Service Access Switch
• Alcatel-Lucent 7705 Service Aggregation Router^[7]
• Alcatel-Lucent 7750 Service Router^[8]
• Allen-Bradley Stratix 5400, 5410, 5700, 8000 Managed Switches^[9]
• Arista 7050X/X2/X3 Series Switches
• Arista 7060X/X2 Series Switches
• Arista 7150 Series Switches^[10]
• Arista 7280E/R/R2 Series Switches
• Arista 7500E/R/R2 Series Switches
• Aruba 2930M Series Switches (with WC.16.04 software release)
• Aruba CX 6300 M series
• Aruba CX 8360
• BitStream Hyperion 300/402/500 Series Switches
• Brocade 6910 Ethernet Access Switch^[11]
• Dell EMC PowerSwitch S4100-ON Series Switches^[12]
• Dell EMC PowerSwitch S5200-ON Series Switches^[12]
• Cisco 7600 Router ^[13]
• Cisco ASR 903 Router ^[14]
• Cisco ASR 9000 Router ^[15]
• Cisco Catalyst 9300 Switch ^[16]
• Cisco CGS 2520 Switch ^[17]
• Cisco Industrial Ethernet 3000 Series Switches^[18]
• Cisco Industrial Ethernet 5000 Series Switches^[19]
• Cisco Nexus 3000 Series Switches ^[20]
• Cisco Nexus 5000 Series Switches ^[21]
• Cisco Nexus 7000 router
• Cisco Nexus 9000 router^[22]
• Connect Tech Inc. Xtreme/10G Managed Ethernet Switch/Router ^[23]
• Crystal Instruments IEEE 1588 Spider-HUB Industrial Ethernet Switch ^[24]
• Ericsson Router 6000 series ^[25]
• Extreme Networks E4G-200 router ^[26]
• Extreme Networks E4G-400 router ^[27]
• Fibrolan Falcon-R Class xHaul Switche/Grandmaster^[28]
• Fibrolan Falcon-M Class Switches/Routers^[29]
• Fibrolan Falcon-MTS Grandmaster^[30]
• Fibrolan uFalcon-S Switch series^[31]
• Fibrolan uFalcon-ST Switch series^[32]
• GarrettCom 10KT Industrial Managed 1588v2 Switch^[33]
• GarrettCom 12KX Industrial Managed 1588v2 Ethernet Switch^[34]
• HBM Rugged Ethernet PTPv2 Switch with PoE: SomatXR EX23-R^[35]
• Hirschmann MACH1040 19" Industrial Ethernet Switches with IEEE 1588v2 support^[36]
• Hirschmann MICE Modular Industrial Ethernet Rail Switch Modules with IEEE 1588v2 support^[37]
• IBM RackSwitch G8264 and IBM RackSwitch G8316 ^[38]
• iS5 Communications Raptor Switch ^[39]
• Juniper Networks MX Universal Edge Routers^[40]
• Juniper Networks QFX
• Kyland SICOM3028GPT series
• Kyland SICOM3000A series
• Kyland Ruby3A
• Mellanox SN2100 / SN2700 (Spectrum silicon) switches with MLNX-OS/ONYX (in GA since 3.6.5011) for PTP IEEE-1588 (SMPTE ST2059-2 profile)^[41] or with Cumulus Linux (from version 3.6) with the ptp4l Linux package.^[42]
• Moxa PowerTrans series (PT-7728-PTP) and EDS-500 and EDS-600 series switches
• Oregano Systems syn1588 Gbit Switch^[43]
• Planet Technology USA, some IGS switches (e.g. IGS-20040MT) ^[44]
• Red Lion N-Tron Series NT24k All-Gigabit Managed Industrial Ethernet Switches ^[45]
• Ruggedcom IEEE 1588 PTP Solutions including RSG2488, RSG2288, RX1000 and RS416^[46]
• Seven Solutions White Rabbit Precise PTP Switch ^[47]
• Siemens SCALANCE X-300 and XR-300 Industrial Managed Ethernet Switch with 1588 support (all X308-2M, all XR-324-12M, all XR324-4M, all X302-7EEC and X307-2EEC)^[48]
• Teletronics Technology Corporation airborne switches^[49]
• TSN Systems - TSN Automotive Switch Q50.^[50]
• EtherWAN IG5 Rack Series - Managed 24-port Gigabit and 4-port 1G/10G SFP+ Ethernet Switch^[51]
• EtherWAN EX73900X Series -Managed 12-port Gigabit and 4-port 10GSFP+ Ethernet Switch^[52]
• EtherWAN EX73900E Series - Managed 12-port Gigabit and 4-port 1G SFP Ethernet Switch^[53]

Stand-alone solutions

• Antenna-integrated OTMC 100 PTP grandmaster clock from OMICRON Lab ^[54]
• AVN-GMCS IEEE1588 PTP Grandmaster Clock with GPS Receiver from Sonifex ^[55]
• Calnex Solutions provides a number of IEEE 1588v2 test products for field and factory use including Paragon-X, Paragon-100G and Sentinel^[56]
• EKOSync 1588A and 1588B IEEE 1588v2 PTP/NTP GPS clocks from EKOSinerji^[57]
• FSMLabs 1 GBps Pocket GrandMaster IEEE 1588v2 PTP/NTP GPS clocks from FSMLabs^[58]
• FSMLabs 10 GBps Enterprise GrandMaster IEEE 1588v2 PTP/NTP GPS clocks from FSMLabs^[59]
• IEEE 1588 PTP GPS Grandmaster Clock from Optimal Technologies^[60]
• IEEE 1588 PTP M68 production module from Qulsar (formerly Conemtech) ^[61]
• IEEE 1588 PTP P6x Sub-System board from Qulsar (formerly Conemtech) ^[62]
• IEEE 1588 PTP PCIe add in cards from Korusys^[63]
• IEEE 1588 PTP Solutions from FEI-Zyfer, Inc.
• IEEE 1588 PTP Solutions from Fibrolan
• IEEE 1588 PTP solutions from Microsemi
• IEEE 1588 PTP Solutions from Oscilloquartz SA^[64]
• IEEE 1588 PTP testers and monitoring solutions from Albedo Telecom^[65]
• IEEE 1588 PTP Time Converter TICRO 100 from OMICRON Lab ^[66]
• IEEE 1588 solutions from Meinberg^[67]
• IEEE 1588v2 PTP GPS Master & Slave clocks from Masterclock^[68]
• IEEE 1588v2 PTP GPS Master & Slave clocks from Tekron^[69]
• IEEE 1588v2 PTP GPS Smartgrid clocks from Tekron^[69]
• IPITEK MSP-1588^[70]
• Open Time Server : 1GbE, Rubidium IEEE 1588 PTP, NTP, SyncE, PPS GNSS grandmaster clock from Timebeat.app^[71]
• Open Time Server : 10/25GbE, Rubidium IEEE 1588 PTP, NTP, SyncE, PPS GNSS grandmaster clock from Timebeat.app^[72]
• Open Timecard : PCIe card OCXO IEEE 1588 PTP, NTP, SyncE, PPS GNSS grandmaster clock from Timebeat.app^[73]
• Open Timecard : PCIe card Rubidium IEEE 1588 PTP, NTP, SyncE, PPS GNSS grandmaster clock from Timebeat.app^[74]
• syn1588 VIP single chip solution from Oregano Systems^[75]
• TSN Systems TSN Box 3.0 - Hardware Interface for Automotive and Industrial TSN Test & Measurement Applications.
• White Rabbit LEN from Seven Solutions^[76]
• White Rabbit ZEN Time Provider from Seven Solutions^[77]
• White Rabbit Cute-WR-DP from SyncTechnology^[78]
• White Rabbit Mini-WR from SyncTechnology^[79]
• IEEE 1588 PTP solutions from Mobatime (belongs to the Moser-Baer Group)^[80]
• IEEE 1588 PTP Solutions from PolyNet^[81]

Software

• Domain Time II PTPv2 server and client for Windows and Linux from Greyware Automation Products, Inc.^[82]
• IEEE 1588 Hoptroff Time Suite Enterprise from Hoptroff Smart Timing | Built on the Zero Trust model and encrypted to maximum standards to ensure resilient cybersecurity, delivered via dedicated optic fibre connection | MiFID II, CAT FINRA NMS compliance | ^[83]
• IEEE 1588 Protocol Software from HMS Industrial Networks (formerly IXXAT Automation GmbH).^{[84] [85]}
• IEEE 1588 PTP 2002/2008 Master Stack Software from Real-Time Systems GmbH.
• IEEE 1588 PTP Stack, XR7 PTP, from TTTech Flexibilis Oy^[86]
• IEEE 1588 Stack from Civica Ltd.^[87]
• Microsoft Windows Server 2019^[88]
• Microsoft Windows 10 October 2018 Update (version 1809)
• Openptp from Flexibilis Oy is GPL licensed open source implementation of the IEEE 1588-2008 (Version 2) PTP specification.^[89]
• PTP Track Hound,^[90] free tool from Meinberg to record, visualize and analyze PTP network traffic
• PPSi, a multi-platform ptp implementation developed by CERN.^[91]
• PTPd and its derivatives
• syn1588 PTP Stack from Oregano Systems: A portable implementation of the complete IEEE1588-2008 standard with special features like Boundary Clock support, Unicast operation, IPv6 support and security enhancements.^[92]
• The Linux PTP Project – an implementation of the Precision Time Protocol (PTP) according to IEEE standard 1588 for Linux. The dual design goals are to provide a robust implementation of the standard and to use the most relevant and modern Application Programming Interfaces (API) offered by the Linux kernel.^[93]
• Timebeat - PTP synchronisation platform and monitoring solution.^[94]
• TimeKeeper PTP server and client from FSMLabs, Inc.^[95]
• TSEP Chronos: IEEE 1588 PTP 2008 Stack for Windows, Linux, and RTX64(IntervalZero) from Technical Software Engineering Plazotta.^[96]
• TsEX module of the NeEX platform - IEEE1588 compliant PTP stack by emagine ^[97]
• UMAN PTP Stack - 802.1AS (gPTP), Automotive PTP 1.5.

Silicon

• 8-Input, 14-Output, Dual DPLL Timing IC with IEEE 1588 Clock from Microsemi Corporation^[98]
• IEEE 1588 PTP Grandmaster Controller from Qulsar (formerly Conemtech) ^[99]
• IEEE 1588 PTP Ethernet Switching Solutions from Vitesse Semiconductor^[100]
• IEEE 1588 PTP Synchronization Solutions from Zarlink Semiconductor^[101]
• IEEE 1588 PTP Synchronization Solutions from Semtech Corporation^[102]
• IEEE 1588 Clock and 10/100/1000 Mbit/s Packet Timestamper from Microsemi Corporation^[103]
• IEEE 1588 PTP Synchronization of Network Communications Equipment from Integrated Device Technology^[104]
• BroadPTP in network equipment using Broadcom silicon.^[105]

Other

• IEEE 1588 PTP 1 Gb Ethernet Layer 2 Switch IP Core from Flexibilis Oy^[106]
• IEEE 1588 PTP Compliance from The White Rabbit Project in the Open Hardware Repository.^[107]
• IEEE 1588 PTP Embedded Timing Appliance from Black Brook Design^[108]
• IEEE 1588 PTP Hoptroff Traceable Time as a Service (TTaaS®) from Hoptroff Smart Timing^[109]
• IEEE 1588 PTP IP Core from IXXAT Automation GmbH^[110]
• IEEE 1588 PTP IP Core from OpenCores^[111]
• IEEE 1588 PTP IP Cores for Xilinx FPGAs from System-on-Chip engineering^[112]
• IEEE 1588 PTP IP Cores from Optimal Technologies
• IEEE 1588 PTP Solutions for industrial Ethernet networking and computing from Moxa^[113]
• IEEE 1588 PTP Solutions from ELPROMA and CERN^[114]
• IEEE 1588 PTP Solutions from EndRun Technologies^[115]
• IEEE 1588 PTP Solutions from InES ZHAW^[116]
• IEEE 1588 PTP Solutions from Meinberg Funkuhren^[117]
• IEEE 1588 PTP Solutions from Microsemi^[118]
• IEEE 1588 PTP Solutions from NetTimeLogic GmbH^[119]
• IEEE 1588 PTP / White Rabbit Solutions from OPNT B.V.^[120]
• IEEE 1588 PTP Solutions from Oregano Systems ^[121]
• IEEE 1588 PTP Solutions from Oscilloquartz^[122]
• IEEE 1588 PTP Solutions from Qulsar (formerly Conemtech) ^[123]
• IEEE 1588 PTP Solutions from Orolia^[124] (formerly Spectracom)
• IEEE 1588 PTP Solutions from Time & Frequency Solutions^[125]
• IEEE 1588 PTP Solutions from Trimble.Inc^[126]
• IEEE 1588 PTP Synchronization Solutions from Integrated Device Technology^[127]
• IEEE 1588-2008 Management Tool from IXXAT Automation GmbH^[128]
• IEEE 1588 PTP Solutions from Polynet ^[129]

Notes and References

1. Web site: n.d. . Quarra 1 Gbps PTP Ethernet Switch . . 2023-12-15 . https://web.archive.org/web/20221126145654/https://www.artel.com/media-transport-products/quarra-1-gbps-ptp-ethernet-switch/ . 2022-11-26 . live . dmy-all .
2. Web site: n.d. . Quarra PTP 10 Gbps Ethernet Switch . . 2023-12-15 . https://web.archive.org/web/20230401115218/https://www.artel.com/media-transport-products/quarra-ptp-10-gbps-ethernet-switch/ . 2023-04-01 . live . dmy-all .
3. Ryan . Jim . 2011-07-28 . CURTISS-WRIGHT ACQUIRES ACRA CONTROL LTD LEADING DESIGNER AND MANUFACTURER OF DATA ACQUISITION SYSTEMS FOR GLOBAL DEFENSE AND COMMERCIAL AEROSPACE MARKETS . live . Press release . en . . . https://web.archive.org/web/20220524100039/https://www.curtisswright.com/news/press-releases/news-release-details/2011/Curtiss-Wright-Acquires-ACRA-Control-Ltd/default.aspx . 2022-05-24 . 2023-12-15 . Curtiss-Wright Corporation (NYSE:CW) announced today that it has acquired ACRA Control, Limited (ACRA) for approximately €42 million (approximately $61 million) in cash. [...] In addition, ACRA's advanced ethernet switch technology will enhance the value of Curtiss-Wright's system-level approach to C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance) solutions. . dmy-all .
4. Web site: Curtiss-Wright Flight test switches . 2023 . . 2023-12-15 . https://web.archive.org/web/20231205084803/https://www.curtisswrightds.com/products/flight-test/switches . 2023-12-05 . live . Our selection of flight test switches includes support for IEEE-1588 PTP, embedded v1 and v2 Grandmaster support and translation, and GPS and digital IRIG-B input and output. . dmy-all .
5. ACRA Control Ltd . ACRA CONTROL Launches Airborne IEEE 1588 Ethernet Switch . 2010-07-26 . Newswire Today . 2023-12-15 . https://web.archive.org/web/20121008053500/https://www.newswiretoday.com/news/74476/ . 2012-10-08 . live . Press release . en . . Acra Control today announces the launch of a ruggedized managed Grandmaster Ethernet switch designed for airborne applications. . dmy-all.
6. Web site: 2023 . 7210 Service Access Switch . . 2023-12-15 . https://web.archive.org/web/20231114005158/https://www.nokia.com/networks/ip-networks/7210-service-access-system/ . 2023-11-14 . live . dmy-all .
7. Web site: 7705 Service Aggregation Router . Alcatel-Lucent . 2014-03-30.
8. Web site: 7750 Service Router . Alcatel-Lucent . 2014-03-30.
9. Web site: Allen-Bradley Stratix Managed Switches. 1 March 2018. Rockwell Automation. 16 July 2018.
10. Web site: 7150 Series - Arista . Aristanetworks.com . 2014-03-30.
11. Web site: Brocade Enables Service Provider Business Model Transformation via Breakthrough Public Cloud-Optimized Networking Solutions . https://web.archive.org/web/20110516230220/http://newsroom.brocade.com/easyir/customrel.do?easyirid=74A6E71C169DEDA9&version=live&prid=750964&releasejsp=custom_184 . dead . May 16, 2011 . 3 May 2011 . Brocade Communications Systems, Inc. . 27 July 2011.
12. https://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/dell-emc-networking-S4100-series-spec-sheet.pdf DELL EMC NETWORKING S4100-ON
13. Web site: 7600 Series Routers - Products & Services . Cisco . 2014-03-30.
14. Web site: Cisco ASR 903 Router . May 20, 2012 . dead . https://web.archive.org/web/20111201080241/http://www.cisco.com/en/US/prod/collateral/routers/ps10912/ps11610/data_sheet_c78-685686_ps9853_Products_Data_Sheet.html . 2011-12-01.
15. Web site: ASR 9000 Series Aggregation Services Routers - Products & Services . Cisco . 2014-03-30.
16. Web site: Cisco Catalyst 9300 Series Switches Data Sheet.
17. Web site: 2500 Series Connected Grid Switches - Products & Services . Cisco . 2014-03-30.
18. Web site: Cisco Extends Highly Secure, Improved Communications in Rugged Environments with New Family of Industrial Ethernet Switches . 14 November 2007 . Cisco Systems . 6 July 2010.
19. Web site: Cisco Extends Highly Secure, Improved Communications in Rugged Environments with New Family of Industrial Ethernet Switches . 14 November 2007 . Cisco Systems . 6 July 2010.
20. Web site: Nexus 3000 Series Switches - Products & Services . Cisco . 2014-03-30.
21. Web site: Nexus 5000 Series Switches - Products & Services . Cisco . 2014-03-30.
22. Web site: Precision Time Protocol for Timing in IP Fabric for Media Guide. Cisco. en. 2020-05-12.
23. Web site: Xtreme/10G Managed Ethernet Switch/Router. Connect Tech . 2020-09-24.
24. Web site: Spider-HUB IEEE 1588 Industrial Ethernet Switch – Crystal Instruments . Crystalinstruments.com . 2014-03-30.
25. Web site: Router 6000 R17 Training Programs. Ericsson . 2018-09-04 . 2018-09-04.
26. Web site: Mobile Backhaul - Extreme Networks E4G-200 . Extreme Networks . 2014-03-26 . 2014-03-30.
27. Web site: Carrier Ethernet Platform- Extreme Networks E4G-400 . Extreme Networks . 2014-03-26 . 2014-03-30.
28. Web site: R class xHaul Switche/Grandmaster. www.fibrolan.com. Fibrolan Ltd.. 2018-03-27.
29. Web site: M class Switches. www.fibrolan.com. Fibrolan Ltd.. 2018-03-27.
30. Web site: Timing distribution - Fibrolan Falcon-MTS. 2015-07-21. Fibrolan. 2015-07-21.
31. Web site: Mobile Backhaul - Fibrolan uFalcon-S . Fibrolan. 2015-07-21 . 2015-07-21.
32. Web site: Mobile Backhaul - Fibrolan uFalcon-ST. 2014-05-28. Fibrolan. 2014-05-28.
33. Web site: GarrettCom 10KT Industrial Managed 1588v2 Ethernet Switch . 26 July 2011 . GarrettCom Europe . 26 July 2011.
34. Web site: GarrettCom 12KX Industrial Managed 1588v2 Ethernet Switch . 26 July 2011 . GarrettCom Europe . 26 July 2011.
35. Web site: HBM rugged Ethernet Switch SomatXR EX23-R . HBM . 2016-04-20.
36. Web site: Hirschmann MACH1040 series switches . Hirschmann . 6 June 2011.
37. Web site: Hirschmann MICE Media Modules with 1588v2 support . Hirschmann . 6 June 2011.
38. Web site: IBM Networking OS 7.4 Feature Summary . December 2012. IBM. 20 December 2012.
39. Book: iBiome - PTP User Guide . 3. PTP Configuration by CLI . 1.10.06-1 . January 2021 . iS5 Communications Inc. . 2144 . https://web.archive.org/web/20231215080758/https://is5com.com/Config_Guid_1.11.06/PTP/PDF/CM-PTP-iBiome-1.10.06-EN.pdf . 2023-12-15 . live . 2023-12-15 . dmy-all.
40. Web site: 10 October 2010. Precision Time Protocol. Juniper Networks. 15 November 2011.
41. Web site: Product Brief SN2700 Open Ethernet Switch. Mellanox Technologies. 1 July 2018.
42. Web site: Precision Time Protocol (PTP) Boundary Clock. Cumulus Linux. 1 July 2018.
43. Web site: syn1588® Gbit Switch » Oregano Systems . Oreganosystems.at . 2014-03-30.
44. Web site: PlanetTech IGS-20040MT switch . Planet Technology USA . 24 September 2020.
45. Web site: N-Tron® NT24k® All-Gigabit Managed Ethernet Switches . 2 November 2015 . Red Lion Controls . 17 May 2018.
46. Web site: Precision Time Protocol Solutions . RuggedCom . 10 December 2010.
47. Web site: White Rabbit PTP Switch. 15 April 2016 . Sevensolutions.
48. Web site: SCALANCE X-300 managed. 14 August 2011 . Siemens AG. 14 August 2011.
49. Web site: Teletronics Technology Corporation Total System Solutions for Defense and Commercial Aerospace Test Applications. www.ttcdas.com. 2016-09-14.
50. Web site: TSN Systems - Test & Measurement Solutions. 2019-05-16. tsn.systems. 2019-05-29.
51. Web site: EtherWAN Systems - IEEE 1588v2 — Applications and Operation Using. 2024-08-14. www.etherwan.com. 2024-08-14.
52. Web site: EtherWAN Managed Ethernet Switch. 2024-08-14. www.etherwan.com. 2024-08-14.
53. Web site: EtherWAN Managed Ethernet Switch. 2024-08-14. www.etherwan.com. 2024-08-14.
54. Web site: OTMC 100 - Antenna-integrated PTP Grandmaster Clock. 23 February 2015.
55. Web site: AVN-GMCS IEEE1588 PTP Grandmaster Clock with GPS Receiver . Sonifex . 20 June 2016.
56. Web site: What We Do Mobile Backhaul Solutions. www.calnexsol.com. 2015-10-22.
57. Web site: EKOSync 1588 PTP Time Server - Telecom & Communication Products . 2022-09-19 . www.ekosinerji.com.
58. Web site: TimeKeeper Pocket GrandMaster. 21 November 2013.
59. Web site: TimeKeeper GrandMaster. 10 January 2017.
60. Web site: IP Cores. Optimal Technologies. en-US. 2016-03-14.
61. Web site: Qulsar M50 module. 28 October 2011.
62. Web site: Qulsar P50 board. 28 October 2011.
63. Web site: Korusys PTP Solutions . Korusys. 10 Feb 2012.
64. Web site: IEEE 1588-2008 PTP Solutions . Oscilloquartz . 10 January 2012.
65. Web site: IEEE 1588-2008 PTP Solutions . ALBEDO Telecom . 10 January 2015.
66. Web site: TICRO 100 - PTP Time Converter. 23 February 2015.
67. Web site: Meinberg IEEE 1588 products. Meinbergglobal. en-US. 2017-02-09.
68. Web site: IEEE 1588v2 PTP GPS master and slave clocks from Masterclock. 10 January 2016.
69. Web site: IEEE 1588v2 PTP GPS master and slave clocks from Tekron. 1 January 2016.
70. Web site: IPITEK's Industry-Leading IEEE-1588v2 Solution . 20 April 2010 . IPITEK . 5 May 2011.
71. Web site: Open Time Server . 2024-06-25 . Timebeat.app . en.
72. Web site: Open Time Server . 2024-06-25 . store.timebeat.app.
73. Web site: Open Timecard Timebeat . 2024-06-25 . Timebeat.app . en.
74. Web site: Open Timecard . 2024-06-25 . store.timebeat.app.
75. Web site: syn1588® VIP single-chip IEEE1588 solution. 13 February 2013.
76. Web site: White Rabbit LEN. Sevensols. en-US. 14 September 2017.
77. Web site: White Rabbit ZEN. Sevensols. en-US. 14 September 2017.
78. Web site: Cute-WR-DP. SyncTechnology. en-US. 15 March 2019.
79. Web site: Mini-WR. SyncTechnology. en-US. 15 March 2019.
80. Web site: Mobatime IEEE products.
81. https://www.polynet.hu PolyNet
82. Web site: Domain Time II time Performance Series Time Synchronization . Greyware Automation Products, Inc. . 20 August 2015.
83. Web site: Hoptroff Time Suite Enterprise . SyntacticSpice . 23 February 2023.
84. Web site: IEEE 1588 PTP Protocol Software - V2. . IXXAT . 2 June 2011.
85. Web site: HMS Industrial Networks acquires German IXXAT Automation . IXXAT . 1 Feb 2013.
86. Web site: XR7 PTP . TTTech Flexibilis . 8 February 2018.
87. Web site: WanStaX Timing and Synchronisation Control . Civica . 5 July 2019.
88. News: Top 10 Networking Features in Windows Server 2019: #10 Accurate Network Time. 2018-08-23. en-US.
89. Web site: Openptp . 2 June 2011.
90. Web site: MEINBERG PTP Track Hound . 2020-11-19.
91. Web site: PPSi daemon.. 12 May 2023 .
92. Web site: Oregano Systems syn1588 PTP Stack . Oregano Systems . 14 February 2013.
93. Web site: The Linux PTP Project . 13 October 2012.
94. Web site: Timebeat - Open source synchronisation. Timebeat.
95. Web site: FSMLabs time synchronization products . FSMLabs . 21 November 2013.
96. Web site: TSEP Chronos. Technical Software Engineering Plazotta. 8 October 2019.
97. Web site: NeEX - Next Generation Monitoring . 2019-12-25 . 2019-12-25 . https://web.archive.org/web/20191225231330/https://saas.emagine.org/timing-services.php . dead .
98. Web site: DS31408 Web Page. Microsemi. 4 Jun 2012.
99. Web site: Qulsar C34 SOC. 23 April 2014.
100. Web site: Caracal-1 Carrier Ethernet Switch . Vitesse . 21 September 2010.
101. Web site: IEEE-1588 Timing over Packet. Zarlink. 13 May 2011.
102. Web site: Timing over Packet Networks (TopSync)Web Page . Semtech. 7 Oct 2010.
103. Web site: MAX24288 Web Page . Microsemi. 4 Jun 2012.
104. Web site: IEEE 1588 and Synchronous Ethernet Clocks . IDT. 30 Sep 2014.
105. Web site: BroadPTP . 2020-11-09.
106. Web site: IEEE 1588 PTP 1Gb Ethernet Layer 2 Switch . Flexibilis Oy . 6 November 2014.
107. Web site: White Rabbit, a fully deterministic Ethernet-based network for general purpose data transfer and synchronization. . OHR . 3 March 2011.
108. Web site: IEEE 1588-2008 Embedded Timing Appliance . Black Brook Design . 18 December 2010.
109. Web site: Hoptroff Traceable Time as a Service . SyntacticSpice . 23 February 2023.
110. Web site: IEEE 1588 IP Core Module for FPGA . IXXAT. 5 December 2012.
111. Web site: Hardware Assisted IEEE 1588 IP Core . OpenCores . 26 June 2012.
112. Web site: IEEE 1588 PTP IP Core . SoC-e . 6 October 2011.
113. Web site: IEEE 1588v2 Solution . Moxa. 30 March 2011.
114. Web site: ELPROMA Website. 16 November 2011.
115. Web site: IEEE 1588 PTP Solutions . EndRun . 27 July 2011.
116. Web site: InES Institute of Embedded Systems, Zurich University of Applied Sciences . InES ZHAW . 3 March 2011.
117. Web site: IEEE 1588 PTP Solutions . Meinberg . 27 July 2011.
118. Web site: IEEE 1588 PTP Solutions . Microsemi . 6 July 2010.
119. Web site: IEEE1588 PTP FPGA Solutions . NetTimeLogic GmbH . 12 December 2016.
120. Web site: Product overview . 5 March 2021.
121. Web site: Syn1588 Product Range . 13 February 2013.
122. Web site: IEEE1588 solutions from Oscilloquartz. 13 November 2015.
123. Web site: Qulsar Website. 23 April 2014.
124. Web site: Precision Time Protocol (PTP) Grandmasters . Orolia. 25 January 2019.
125. Web site: IEEE1588 PTP solutions from Time & Frequency Solutions . 25 June 2012.
126. Web site: Time and Frequency . 2018-06-10.
127. Web site: IEEE 1588 and Synchronous Ethernet Clocks . IDT. 4 Nov 2015.
128. Web site: IEEE 1588-2008 Management Tool . IXXAT. 5 December 2012.
129. Web site: Polynet - Network synchronization - timing solutions. Polynet. 23 July 2018.