IPPM Framework

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IPPM Framework ISP measurement exchange
65th IETF Meeting March 2006 IPPM Working Group
Emile Stephan
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Presentation Overview

• History Methodology
• ISP measurement result exchange

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History Methodology

• 1995
• IPPM Bof, "IP Provider Metrics"
• RFC2330 framework covers
• Active method
• Passive is not excluded (see sections 5,10.2
  17)
• Spatial composition (sect 9.1)
• How to measure, what to report
• IPPM WG effort covers
• E2E metrics including p2mp (multimetrics draft)
• Composition of e2e metrics only
• Point to address to satisfy IP Provider
  Measurement needs
• How to report ?
• spatial decomposition to integrate passive
  metrics in composition

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Framework for composition

• Segments one-way delay context (segment,
  accuracy, sync ok)
• Results acceptable /error uncertainty
• Temporal aggregation
• One way delay Composition
• Segment one-way delay computed
• Type-P-One-way-Delay- from RFC2679 or
  RFC3432
• Or Type-P-One-way-Delay-Composition-
  composition draft
• Type-P-subpath-One-way-Delay- multimetric
  draft
• Same apply for packet loss and jitter whenever
  applicable

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Framework for ISP measure result exchange

• ISP1
  ISP2
  ISP3
• Segment A B C
  D E
  F
• lt-----------------------gt
  lt------------------------gt lt-------------gtlt------
  ----------gt
• Owd MetricID subpath(34)
  e2e(6) composition(35)
  
• Results dAB,
  dCD, dEF
  
• Exchange records (results, metric ID,
  segment, begin, end, sync status)
• Composition Allowed combination of metricID
  defined in composition draft
• DelayAF for the period t0tf
• Compagg( (34, dAB, t0, tf, ok), (6, dCD, t0,
  tf, ok), (35, dEF, t0, tf, ok))
• Data model