A new Request for Comments is now available in online RFC libraries. RFC 8169 Title: Residence Time Measurement in MPLS Networks Author: G. Mirsky, S. Ruffini, E. Gray, J. Drake, S. Bryant, A. Vainshtein Status: Standards Track Stream: IETF Date: May 2017 Mailbox: gregimirsky@gmail.com, stefano.ruffini@ericsson.com, Eric.Gray@Ericsson.com, jdrake@juniper.net, stewart.bryant@gmail.com, alexander.vainshtein@ecitele.com Pages: 30 Characters: 66556 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-mpls-residence-time-15.txt URL: https://www.rfc-editor.org/info/rfc8169 DOI: 10.17487/RFC8169 This document specifies a new Generic Associated Channel (G-ACh) for Residence Time Measurement (RTM) and describes how it can be used by time synchronization protocols within an MPLS domain. Residence time is the variable part of the propagation delay of timing and synchronization messages; knowing this delay for each message allows for a more accurate determination of the delay to be taken into account when applying the value included in a Precision Time Protocol event message. This document is a product of the Multiprotocol Label Switching Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC