http://www.rfc-editor.org/rfc/rfc7680.txt
RFC 7680: A One-Way Loss Metric for IP Performance Metrics (IPPM), G. Almes, S. Kalidindi, M. Zekauskas, A. Morton2016-01-01T23:00:00-00:00This memo defines a metric for one-way loss of packets across Internet paths. It builds on notions introduced and discussed in the IP Performance Metrics (IPPM) Framework document, RFC 2330; the reader is assumed to be familiar with that document. This memo makes RFC 2680 obsolete.