Ethernet Time Transfer through a U.S. Commercial Optical Telecommunications Network

Abstract

There is a need to back up critical timing infrastructure at the national level. This paper describes a joint project employing commercial equipment to send national timing signals through a telecommunication network. This experiment connects UTC(NIST) in Boulder, Colorado with UTC(USNO) at the Alternate Master Clock at Schriever AFB via a telecommunication provider's optical network using the Precise Time Protocol (PTP) to compare the time standards. The experiment was started in April 2014 and will run through the end of 2014. The paper provides insight into both the planning and validation of the transport path as well as analysis of the experimental data. The focus here is using a US commercial telecom carrier to transfer time between two national real-time standards of UTC.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2014
Accession Number
ADA623787

Entities

People

  • C. Allen
  • C. Chase
  • C. M. Brown
  • D. Coleman
  • G. Wiltsie
  • James Hanssen
  • Lee Cosart
  • Matthew L. Weiss
  • Philip E. Johnson
  • S. Hicks

Organizations

  • United States Naval Observatory

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Asymmetry
  • Communication Systems
  • Department Of Homeland Security
  • Frequency
  • Frequency Standards
  • Governments
  • Homeland Security
  • Instructions
  • Mathematical Analysis
  • Measurement
  • Observatories
  • Security
  • Standards
  • Time Standards
  • Transport Ships

Readers

  • Aerospace Engineering.
  • Computer Networking
  • Positioning, Navigation, and Timing (PNT) Technology.