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Challenges and issues in Measurement research

Explore the importance of monitoring in system design for performance assessment, management, and improvement. Discover the need for monitoring capabilities in all systems and the challenges in defining what to monitor. Consider a two-tier monitoring system for network monitoring and delve into related research problems.

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Challenges and issues in Measurement research

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  1. Challenges and issues in Measurement research Christophe Diot christophe.diot@intel.com www.intel-research.net

  2. Why monitoring • Monitoring should be the first step after a system has been designed • Assess performance • Control, manage, improve, engineer • Any system should be designed with monitoring capabilities • Instead, the internet is a big black box that seem to work well (but don’t look too close)

  3. Why monitoring • Did God monitored Adam before designing Eve ?(clearly not if God was an Internet engineer) • Make a system operational, then monitor it is like putting the cart before the horse.

  4. What needs to be monitored • Managing a network based on SNMP data is like looking at the finger that points the moon • Every possible data might be useful at some given point in time • Need to merge information • We don’t know yet what is exactly needed

  5. Illustration

  6. A two tier monitoring system to network Monitored link Store & Forward Compute & export from network Queries Memory Routing Table

  7. A two tier monitoring system to network Monitored link Store & Forward Compute & export Tier 1 (permanent) from network Queries Memory Routing Table

  8. A two tier monitoring system to network Monitored link Store & Forward Compute & export from network Queries Tier 2 (on-demand) Memory Routing Table

  9. Packet Headers Flow Table Statistics & Counters NIC to/from network Memory Sprint CMON architecture CPU Disk Array Packet Trace Encoding Control Module Compressed Packet Trace Statistics Module OC 3/12/48/192 Flow Classification Engine Export Module DAG Card

  10. Related research problems • Performance (10Gbps and more) • Location (where to deploy) • Control plane (Incl. Queries) • Relevant metrics • DoS • Active monitoring • Sampling

  11. Enablers • Publicly available data • ISPs, Universities, etc. • free equipment to encourage monitoring • NSF, EU MUST push. • Multidisciplinary projects • Academic and industry research work together

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