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Usage Analysis of the NIST Internet Time Service.

Jeff A Sherman1, Judah Levine1,2

  • 1National Institute of Standards and Technology, Boulder, CO 80305.

Journal of Research of the National Institute of Standards and Technology
|August 26, 2021
PubMed
Summary
This summary is machine-generated.

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The National Institute of Standards and Technology

Area of Science:

  • Network Time Synchronization
  • Internet Protocols
  • Distributed Systems

Background:

  • The National Institute of Standards and Technology (NIST) provides the Internet Time Service (ITS) to synchronize network device clocks.
  • Accurate time synchronization is crucial for internet functionality and security.

Purpose of the Study:

  • To analyze the usage patterns of the NIST Internet Time Service.
  • To understand the scale and scope of ITS adoption across the internet.
  • To provide recommendations for improving network time services.

Main Methods:

  • Analysis of inbound network traffic data from ITS servers.
  • Examination of unique Internet Protocol (IPv4) addresses accessing ITS.
  • Statistical analysis of time request volumes and sources.
Keywords:
internet time servicenetwork time protocol (NTP)time transfer

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Main Results:

  • NIST ITS servers receive over 16 billion time requests daily.
  • Two ITS servers alone handled requests from 316 million unique IPv4 addresses in four weeks, representing at least 8.5% of the internet.
  • Significant global reach and usage of NIST's free time service.

Conclusions:

  • The NIST ITS is a critical internet infrastructure component with massive reach.
  • Understanding ITS usage patterns is vital for network management and service provision.
  • Recommendations are provided for manufacturers and service providers to optimize network time services.