Round-trip Loss Metrics

Document Type Replaced Internet-Draft (individual)
Author Al Morton 
Last updated 2013-02-20 (latest revision 2010-10-06)
Replaced by RFC 6673
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Expired & archived
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IESG IESG state Replaced by draft-ietf-ippm-rt-loss
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Many user applications and the transport protocols that make them possible require two-way communications. To address this need, and also for system simplicity, round-trip loss measurements are frequently conducted in practice. The Two-Way Active Measurement Protocol specified in RFC 5357 establishes a round-trip loss measurement capability for the Internet. However, there is currently no metric specified according to the RFC 2330 framework. This memo proposes/adds round-trip loss to the set of IP Performance Metrics (IPPM).


Al Morton (

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