A One-way Active Measurement Protocol (OWAMP)
This RFC 4656 was published in 2006
The One-Way Active Measurement Protocol (OWAMP) measures unidirectional characteristics such as one-way delay and one-way loss.
High-precision measurement of these one-way IP performance metrics became possible with wider availability of good time sources (such as GPS and CDMA).
OWAMP enables the interoperability of these measurements.
RFC 4656 introduction
The IETF IP Performance Metrics (IPPM) working group has defined metrics for one-way packet delay [RFC2679] and loss [RFC2680] across Internet paths.
Although there are now several measurement platforms that implement collection of these metrics [SURVEYOR] [SURVEYOR-INET] [RIPE] [BRIX], there is not currently a standard that would permit initiation of test streams or exchange of packets to collect singleton metrics in an interoperable manner.
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