The perfSONAR Network Monitoring Framework

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The perfSONAR Network Monitoring Framework

• Maurizio Molina (on behalf of Nicolas Simar)
  DANTE
• COST TMA tech. Seminar
• Samos, 23rd Sep 2008

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The GÉANT Network

• DANTE operates GÉANT2
• Backbone network for National Research and
  Education Networks in Europe
• 30 NRENs, 2 global connectivity providers (Telia
  and GCrossing), peerings with other research
  networks (Abilene, Canarie, Clara, TEIN2, SINET)

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The GÉANT Network (IP layer)

• 20 Juniper routers
• tenths of GBit/s of aggregated traffic
• Main accesses and the backbone 10Gbit/s

Pls see www.dante.net
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The Services

• So. Just a big pipe? No!
• Services
• Dedicated L1-L2 circuits via multiple
  technologies
• Performance Monitoring services (perfSONAR)
• Support for federation of National AA
  Infrastructures (eduGAIN) and wireless roaming
  (eduROAM)
• Security Service

NEW!
Very NEW!
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perfSONAR

• Infrastructure to monitor multi-domain services
• Based on web-services
• Collaboration GÉANT2 (15 partners), Internet2,
  ESnet, RNP.
• http//www.perfsonar.net/

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perfSONAR philosophy
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Open access instances

• OWD, OWPL, traceroute and throughput (TCP)
  servers
• over 40 servers across Europe
• IP circuit utilisation (optionally input errors,
  output drops)
• Deployed in more than 10 networks
• Demo GUIs
• http//monstera.man.poznan.pl/jra1-wiki/index.php/
  PerfSONAR_Tools
• perfsonarUI self-paced Tutorial
• http//cbt.geant2.net/repository/perfsonar_ui/perf
  sonar_online_training_0.2/player.html

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perfsonarUI
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How to Access the Web-services

• perfsonarUI
• The list of web-services - http//perfsonar.acad.b
  g/
• Click on Service Address, then on Service Status.
  
• If the status is green, then the web-services can
  be accessed
• Service URL http//srv4.dir.garr.it8080/geant2-j
  ava-rrd-ma/services/MeasurementArchiveService
• Web-service Interface Documentation
• Identify the web-service Type in the URL
• E.g. http//xxx/geant2-java-rrd-ma /services/xxx
• Go to the SVN
• http//anonsvn.internet2.edu/svn/perfsonar/trunk/
  
• Go to the folder of the web-service Type you are
  looking for
• Examples in Interface Specification.doc and
  the rnc can be found under the schema folder

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Support

• Need help, you want to provide some feedback
• perfsonar-user_at_perfsonar.net
• Knowledge base
• http//kb.perfsonar.eu/ (under population)

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Next Steps

• Simple Authorization
• Organisation and role based.
• Using EduGAIN attributes
• Creation of a Multi-Domain Monitoring service
  across Europe (MDM Service in Pilot phase)
• Current target NOCs and PERTs

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Of Interest

• But not deployed
• Flow Aggregation MA
• http//wiki.perfsonar.net/jra1-wiki/index.php/Flow
  _Selection_and_Aggregation_MA
• Flow Subscription MP
• http//wiki.perfsonar.net/jra1-wiki/index.php/Flow
  _Subscription_MP

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Understanding the needs of the operators

• NOCs react mostly on alarms triggered by
  equipment or service being up/down.
• They dont often encounter performance issues
• Either there arent, or the users got used to
  have degraded performances from time to time and
  dont complain about them.
• If the NOCs are given tools, they need
• To be told by an alarm when something goes bad
  (and they shouldnt be overwhelmed by alarms)
• To be able to understand at a glance whats going
  on (interpretation)
• To be able to act on some network elements to
  resolve the issues (otherwise it is useless to
  them)
• Without it, there is little benefits to them.

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Understanding the needs of the operators

• There is also the need for planning tools
  reasonably simple to use.
• There are three gaps that need to be filled
  between the operators and the users
• geographical gap
• network boundaries vs end-to-end
• TCP/IP model gap
• network operators are up to the IP layer (unless
  offering additional services running), the users
  are at the application layer.
• time gap
• the network operators have 5 minutes average
  statistics, the packet lifetime is few ms, an
  application inter-action is around few
  seconds/minutes.