Analysis of Precision Time Protocol (PTP) Locking Time on Non-PTP Networks for Generator Locking over IP

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE Mot. Imag. J
Volume: 123, No. 2, pp. 37–47
Abstract: With the integration of Internet Protocol (IP)-based systems into broadcast architectures generator-locking devices need to redesigned for this new environment. Within the SMPTE 33TS Technology Committee, an IEEE (Institute of Electrical and Electronics Engineers) 1588 profile suited for the production industry is under definition. The Precision Time Protocol (PTP) has been widely adopted in other industries to synchronize nodes in asynchronous networks such as Ethernet. If PTP is used for synchronizing broadcasting equipment replacing systems like color black, locking times of 5 sec are required to facilitate frequent changes in the network topology and offer the same availability as existing analog systems. After describing ways to obtain short lock times, measurement results are presented for a 3-hop network. Different classes of PTP-unaware components were used ranging from older-generation desktop devices to current generation data center units with line rate switching capabilities. The lock time was measured using different PTP message rates as well as default and expedited forwarding for PTP traffic while applying various network load conditions.
Publication Date: 2014-03-01
DOI: 10.5594/j18383
ISSN: Print: 1545-0279
Link: https://doi.org/10.5594/j18383
Author(s): Nikolaus Kero
bio
Nikolaus Kerö received a master's degree in communication engineering with distinction from the Vienna University of Technology. He then led the ASIC design division at the university's Institute of Industrial Electronics, successfully managing numerous research projects and industry collaborations. His research activities centered on distributed systems design, especially highly-accurate and fault- tolerant clock synchronization. In 2001 Kerö co-founded Oregano Systems Design & Consulting, Ltd., as a university spin-off. While offering embedded systems design services to customers, Oregano transferred research results into a complete product suite for highly-accurate clock synchronization under the brand name syn1588¯, for which Kerö manages both development and marketing. He is an active member of the IEEE1588 standardization committee and the SMPTE 33TC standard group. Kerö holds frequent seminars on clock synchronization for both industry and academia.
Tobias Muller
bio
Tobias Müller studied electronic engineering (Bachelor degree) as well as embedded systems (Master degree) at the University of Applied Science in Vienna. His main field of interest lie in clock synchronization for distributed, asynchronous computer systems. He currently works for Oregano Systems as software and system engineer.
Thomas Kernen
bio
Thomas Kernen is a consulting systems engineer working for the office of the chief technology officer in Cisco's European Borderless Network Team. Kernen's main area of focus is defining video architectures and transmission solutions for content providers, broadcasters, telecom operators and IPTV Service Providers. Before joining Cisco, Kernen spent ten years with different telecoms operators, including three years with an FTTH triple play operator, for whom he developed their IPTV architecture. He is a member of the IEEE Communications and Broadcast Societies, and SMPTE. He is an active contributor within the Digital Video Broadcast (DVB) Project, SMPT and various European Broadcasting Union (EBU) groups.
Mickael Deniaud
bio
Mickael Deniaud graduated from the EFREI engineering school in the Paris area, with a master's degree in Computer Science and Electronic Engineering. After joining Cisco in 1999, Mickael spent the last five years as a systems engineer, in the team taking care of the Swiss Service Providers. He is mainly works with cable multiple-system operators, FTTH service providers and video broadcasters, focusing on the IP transmission infrastructures and broadcast video systems.
Copyright: © 2014 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. IEEE Standard 1588 , “IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems,” IEEE Instrumentation and Measurement Society , 2008 . EXTERNAL
2. Villain B. Davisy M. Ridouxy J. Veitchy D. Normand N. , “Probing the Latencies of Software Timestamping,” Proc. of the ISPCS , San Francisco , 2012 . EXTERNAL
3. Had&zcaron;i&cacute; I. and Morgan D. R. , “On Packet Selection Criteria for Clock Recovery,” Proc. of the IPSCS , Brescia, Italy , 2009 . EXTERNAL
4. Had&zcaron;i&cacute; I. and Morgan D. R. , “Adaptive Packet Selection for Clock Recovery,” Proc. of the IPSCS , Portsmouth, NH , 2010 . EXTERNAL
5. Joint EBU/SMPTE Task Force on Timing and Synchronization, Request for Standardization, 20 August 2009, https://kws.smpte.org/kws/groups/33ts/documents/smpte3504/document?document_id=6906 . EXTERNAL
6. Loschmidt P. Exel R. Nagy A. and Gaderer G. , “Limits of Synchronization Accuracy Using Hardware Support in IEEE 1588,” Proc. of the ISPCS , Ann Arbor, MI , 2008 . EXTERNAL
7. Garner G. Oullette M. and Teener M. , “Using an IEEE 802.1AS Network as a Distributed IEEE 1588 Boundary, Ordinary, or Transparent Clock,” Proc. of the ISPCS , Portsmouth, NH , 2010 . EXTERNAL
8. http://www.oreganosystems.at/?page_id=71 retrieved Jan 2014 EXTERNAL
9. Agilent Technologies , “The Journal of Internet Test Methodologies,” http://www.ixiacom.com/pdfs/test_plans/agilent_journal_of_internet_test_methodologies.pdf , Sept. 2007, retrieved May 2013 . EXTERNAL
10. Schmidt R. and Fontaine B. , “An NTP Stratum-One Server Farm Fed by IEEE-1588,” 42nd Annual PTTI Meeting , Reston, VA , Nov. 2010 . EXTERNAL
11. Murakami T. and Horiuchi Y. , “A Packet Filtering Mechanism with a Packet Delay Distribution Estimation Function for IEEE 1588 Time Synchronization in a Congested Network” , Proc. of the ISPCS 2011, Munich Germany , 2011 . EXTERNAL
12. Mahmood A. and Ring F. , “Clock Synchronization for IEEE 802.11–Based Wired-Wireless Hybrid Networks Using PTP,” Proc. of the IPSCS , San Francisco , 2012 . EXTERNAL

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Nikolaus Kero, Tobias Muller, Thomas Kernen, and Mickael Deniaud; Analysis of Precision Time Protocol (PTP) Locking Time on Non-PTP Networks for Generator Locking over IP, SMPTE Motion Imaging Journal ( Volume: 123, Issue: 2, March 2014); SMPTE, 2014. Available at https://doi.org/10.5594/j18383

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Nikolaus Kero, Tobias Muller, Thomas Kernen, and Mickael Deniaud; Analysis of Precision Time Protocol (PTP) Locking Time on Non-PTP Networks for Generator Locking over IP, SMPTE Motion Imaging Journal ( Volume: 123, Issue: 2, March 2014); SMPTE, 2014. Available at https://doi.org/10.5594/j18383

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<span class="citation">Nikolaus Kero, Tobias Muller, Thomas Kernen, and Mickael Deniaud; <cite>Analysis of Precision Time Protocol (PTP) Locking Time on Non-PTP Networks for Generator Locking over IP</cite>, SMPTE Motion Imaging Journal ( Volume: 123, Issue: 2, March 2014); SMPTE, 2014. Available at <a href="https://doi.org/10.5594/j18383" target="_blank" rel="noopener">https://doi.org/10.5594/j18383</a></span>

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Nikolaus Kero, Tobias Muller, Thomas Kernen, and Mickael Deniaud; <cite id="bib-10-5594-j18383">Analysis of Precision Time Protocol (PTP) Locking Time on Non-PTP Networks for Generator Locking over IP</cite>, SMPTE Motion Imaging Journal ( Volume: 123, Issue: 2, March 2014); SMPTE, 2014
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