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Transporting PTP messages over MPLS networks using a link local addressing

Document type: Expired Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2012-09-06 (latest revision 2012-03-05)
Intended RFC status: Unknown
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IESG State: Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


This document introduces a method for transporting PTP messages over an MPLS network supported by an Ethernet physical layer. The MPLS layer itself is not used to carry the PTP messages with this method; instead, a link local Ethernet channel is used. Several advantages related to this method are highlighted in this document. The method targets in particular telecom applications requiring accurate phase/time synchronization, with "link-by-link" PTP architectures, where all the network nodes support a PTP function, such as Boundary Clock or Transparent Clock.


Sebastien Jobert <>

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)