Measurement Projects Overview

1
Measurement Projects Overview

• Matt Zekauskas
• matt_at_internet2.edu
• I2 Measurements WG Meeting
• San Diego, CA
• 20 November 1998

2
Outline

• Classification
• Broad project organizations
• Specific projects

3
Caveats

• My personal expertise active measurements, IETF
  IPPM
• Not exhaustive
• Research/education focus
• If you see something left out,speak up!

4
Classification

• Active measurements
• Passive measurements
• Utilization usually SNMP
• Routing usually BGP/traceroute

5
Broad Organizations

• IETF
• IP Performance Metrics (IPPM)
• Realtime Traffic Flow Measurement (RTFM)
• NLANR
• Measurement Operations Analysis Team
• National Center for Network Engineering
• CAIDA

6
IPPM Scope

• Develop metrics that measure
• Quality
• Performance
• Reliability
• of Internet data delivery services
• Quantitative measures
• not a value judgement

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IPPM Metrics

• Framework RFC2330
• Connectivity
• One-way delay and loss
• Round-trip delay and loss
• Flow capacity/Bulk transfer capacity
• Delay variation (jitter)http//www.advanced.org/I
  PPM/

8
RTFM

• Measure network flows through passive measurments
• Standards for
• architecture metrics for traffic flows
• language to describe flows
• MIB to control meter gather measurements
• Origin in accounting

9
RTFM

• Philosophy aggregate on meter,accurately count
  everything
• Bytes/link, bytes/port, bytes/flow
• Rule-based production system
• Look at header only
• http//www.auckland.ac.nz/net/Internet/rtfm

10
Projects

• IPMA
• Surveyor
• RIPE Test Traffic
• pingER
• NIMI
• NLANR/MOAT NAIcorresponding CAIDA deployment?

11
IPMA

• Routing history
• tool development (like NLANR/CAIDA)
• Decentralized infrastructure
• MRT, RouteTrackerd, Salamander
• ASExplorer, FlapGraph, RouteTracker, ...
• http//www.merit.edu/ipma

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Surveyor RIPE TT

• Implementations of IPPM one-way metrics active
  measurements
• also routing via traceroute
• Surveyor O(40) machines, mostly US and Canada,
  now getting some European Pacific Target
  O(100)
• RIPE O(15) machines, European focus

13
PingER

• ESNET / physics community(also XIWT)
• Long-term ping measurements
• Set of cooperating measurementsites -- not just
  random hosts
• http//www.slac.stanford.edu/xorg/icfa/ntf/home.ht
  ml
• http//www.slac.stanford.edu/xorg/icfa/ntf/tool.ht
  ml

14
NIMI

• Emphasis on the I - Infrastructure
• Platform for network experiments
• Outgrowth of Verns npd project
• Emphasis on active measurements
• Currently traceroute, Treno, PoIP
• Should be able to roll your own
• General (beta) release imminent

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NIMI Structure

• Uniform platform (hw, os, nimid)
• Owners control CPOCaccess lists crypto for
  security
• Researchers schedule experimentsMPOC
• nimid handles resource scheduling
• Plans for synchronized time source (not yet)
• http//www.ncne.org/

16
Network Analysis Infrastructure

• HPNSP focus
• Passive measurement infrastructure
• Keep headers for research
• Adding performance data (active)
• Also SNMP data (vBNS today)
• Also BGP data (from Oregon RA)

17
Tools Platform

• NIMI
• Windmill
• UofM/MERIT
• Passive experimentation focus
• Listen to selective protocol messages, and replay
  locally to understand endpoint state
• Example snooping BGP peering session
• Not released SIGCOMM98

18
Tools Routing

• Traceroute servers
• IPMA tools (based on BGP peering)
• Skitter tomography (CAIDA)

19
Tools Active performance

• Treno
• mping (windowed ping) invasive
• pathchar estimate router Qsbottleneck bandwidth
• traditional ping, ftp, ttcp, netperf

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Tools Passive

• NeTraMet Nevil Brownlees RTFM
• IBM Researchs RTFM
• tcpdump
• OCxMON passive optical
• Coral
• Ciscos NetFlow, and
• cflowd (CAIDA/ANS)

21
Tools Utilization

• Mainly commercial? Network management tools
  (e.g., OpenView)
• MRTG
• NetScarf?

22
Parting Thoughts

• Integration with network management? (They want
  measurement results for operations!)
• Dont neglect commercial tools