A new Request for Comments is now available in online RFC libraries. RFC 8250 Title: IPv6 Performance and Diagnostic Metrics (PDM) Destination Option Author: N. Elkins, R. Hamilton, M. Ackermann Status: Standards Track Stream: IETF Date: September 2017 Mailbox: nalini.elkins@insidethestack.com, rhamilton@cas.org, mackermann@bcbsm.com Pages: 30 Characters: 65231 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-ippm-6man-pdm-option-13.txt URL: https://www.rfc-editor.org/info/rfc8250 DOI: 10.17487/RFC8250 To assess performance problems, this document describes optional headers embedded in each packet that provide sequence numbers and timing information as a basis for measurements. Such measurements may be interpreted in real time or after the fact. This document specifies the Performance and Diagnostic Metrics (PDM) Destination Options header. The field limits, calculations, and usage in measurement of PDM are included in this document. This document is a product of the IP Performance Metrics 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