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Round-trip Loss Metrics

Round-trip Loss Metrics. Al Morton November 2010 draft-morton-ippm-rt-loss-01. Motivation. Completes the fundamental metric taxonomy, virtually everyone does it Virtually everything requires two-way connectivity (no listing the exceptions) Exactly the required metric, reduce work

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Round-trip Loss Metrics

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  1. Round-trip Loss Metrics Al Morton November 2010 draft-morton-ippm-rt-loss-01

  2. Motivation • Completes the fundamental metric taxonomy, virtually everyone does it • Virtually everything requires two-way connectivity (no listing the exceptions) • Exactly the required metric, reduce work • Measurement simplicity – TWAMP • RT-methods raise some issues, identify • Many report on conditional RT-delay • Need separate metrics on the loss performance

  3. Metrics • Common parameters section (3) • Obvious Metrics: Singleton, Sample, and Statistic • Improved generalization of Stream: • Type-P-Round-trip-Loss-<Sample>-Ratio • Where <Sample> = Poisson, Periodic, etc • This worked to resolve a DISCUSS on the Spatial Composition Draft

  4. Discussion • More issues identified for RT-methods • Especially when also reporting one-way • Added detail on forward path loss and delay variation affect on return path sampling • Comment (Barry): what about reordering? Will add in next version. • Let’s complete the set of metrics!

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