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Draft-ietf-ippm-metrictest-01 Proposed definition of easy and difficult metrics to be tested

Testing Standards Track Metrics Draft-ietf-ippm-metrictest-01 Geib, Morton, Fardid, Steinmitz IETF-79 November 2010. Draft-ietf-ippm-metrictest-01 Proposed definition of easy and difficult metrics to be tested.

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Draft-ietf-ippm-metrictest-01 Proposed definition of easy and difficult metrics to be tested

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  1. Testing Standards Track MetricsDraft-ietf-ippm-metrictest-01Geib, Morton, Fardid, SteinmitzIETF-79 November 2010 Geib/Morton/Fardid/Steinmitz / draft-ietf-metrictest-01

  2. Draft-ietf-ippm-metrictest-01Proposed definition of easy and difficult metrics to be tested • Frequency of events and temporal properties of impairment processes are to be respected by a metric test. • A frequent event produces one outcome helpful to capture a distribution of results (almost) per singleton. This is true for Delay, Delay Variation or capacity metrics. The proposed test allows comparisons of implementations. • A rare event produces infrequent outcomes helpful to capture a distribution of rates (these events are at least often charaterised by rates). Packet Loss and Duplication fit here. The proposed test allows comparisons of implementations. • Some rare events probably can’t be tested with implementations sending streams of different packet frequency (and may be sizes), like Loss Pattern or Reordering. The temporal properties of the impairment process impact the test. A suitable test set up requires further study. Geib/Morton/Fardid/Steinmitz / draft-ietf-metrictest-01

  3. Draft-ietf-ippm-metrictest-01.Test set up comparison. Geib/Morton/Fardid/Steinmitz / draft-ietf-metrictest-01

  4. Draft-ietf-ippm-metrictest-01.New experimental set up avoiding Compare two implementations by a two site measurement configuration • That is an experiment, to be carried out as a diploma thesis. • Aim:prove IPPM standard compliance of the RIPE Test box and of Telekom’s Perfas (which is a self development only used internally). • Pro: Simple, an no equipment is moved. Con:The same L2TPv3 tunnel segments are passed in different order by the different implementations. VLAN 101 VLAN 100 VLAN 201 VLAN 200 Geib/Morton/Fardid/Steinmitz / draft-ietf-metrictest-01

  5. Draft-ietf-ippm-metrictest-01.Next steps. • Carry out the experiment of a complete metric test (not just ADK) and include reports in -02. • If the experiments validates the idea of metric test, finalise draft and go for last call. • We don’t want to worry about what do, if not. Geib/Morton/Fardid/Steinmitz / draft-ietf-metrictest-01

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