Week 3: Clock synchronization
- Lecture notes:
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Clock synchronization
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Clock synchronization - Lecture slides
(6 per page)
- Supplemental notes:
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How does it work?, The NTP Public Services Project
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Executive Summary - Computer Network Time Synchronization
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How Linux keeps track of time:
The Clock Mini-HOWTO, Ron Bean, v2.1, November 2000.
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www.ntp.org, NTP project page.
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RFCs for NTP, including RFC 5905, Network Time Protocol Version 4.
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NTP documentation
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NTP Architecture, Protocol and Algorithms, David L. Mills,
University of Delaware
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Retooling the Global Positioning System,
Per Enge, Scientific American, April 26, 2004.
- Buzzwords:
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Clock drift, clock offset, linear
compensation function, time server,
Cristian's algorithm, Berkeley algorithm,
fault-tolerant average, Network Time Protocol (NTP), synchronization
subnet, strata, dispersion, Simple Network Time Protocol (SNTP),
Precision Time Protocol (PTP), master