RFC 8039

Multipath Time Synchronization, December 2016

Canonical URL:
https://www.rfc-editor.org/rfc/rfc8039.txt
File formats:
Plain TextPDF
Status:
EXPERIMENTAL
Authors:
A. Shpiner
R. Tse
C. Schelp
T. Mizrahi
Stream:
IETF
Source:
tictoc (int)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8039

Discuss this RFC: Send questions or comments to tictoc@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

Clock synchronization protocols are very widely used in IP-based networks. The Network Time Protocol (NTP) has been commonly deployed for many years, and the last few years have seen an increasingly rapid deployment of the Precision Time Protocol (PTP). As time-sensitive applications evolve, clock accuracy requirements are becoming increasingly stringent, requiring the time synchronization protocols to provide high accuracy. This memo describes a multipath approach to PTP and NTP over IP networks, allowing the protocols to run concurrently over multiple communication paths between the master and slave clocks, without modifying these protocols. The multipath approach can significantly contribute to clock accuracy, security, and fault tolerance. The multipath approach that is presented in this document enables backward compatibility with nodes that do not support the multipath functionality.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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