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Scalable, Extensible, and Safe Monitoring of GENI Spiral 2 Year-end Project Review

Scalable, Extensible, and Safe Monitoring of GENI Spiral 2 Year-end Project Review. Sensing Information Management Backplane. PI: Sonia Fahmy, Purdue University Puneet Sharma, Prakash Kumar Malligemane, HP Labs Students: Sriharsha Gangam, Ethan Blanton, Purdue University August 30 th , 2010.

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Scalable, Extensible, and Safe Monitoring of GENI Spiral 2 Year-end Project Review

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  1. Scalable, Extensible, and Safe Monitoring of GENISpiral 2 Year-end Project Review Sensing Information Management Backplane PI: Sonia Fahmy, Purdue University Puneet Sharma, Prakash Kumar Malligemane, HP Labs Students: Sriharsha Gangam, Ethan Blanton, Purdue University August 30th, 2010

  2. Project Summary • Project wiki: http://groups.geni.net/geni/wiki/ScalableMonitoring • Online system portal: http://illusion.hpl.hp.com:8180/geni/demo.jsp • The Scalable Sensing Service (S3) provides network measurement information to any user, experimenter, or administrator such that both active and passive measurements can be taken in a safe manner • By safety, we mean that users cannot trigger arbitrarily large/frequent measurement probes that exceed a specified budget • Example tools: pathrate, pathchirp, spruce, tulip • User can specify requested periodic measurement frequency • The careful admission control of measurement requests allows administrators to prioritize the measurements they admit according to their policies • The measurement resource budget is utilized better by dynamically invoking inference mechanisms when needed • Careful scheduling also reduces interference among active measurement tools August 30th, 2010

  3. Milestone & QSR Status August 30th, 2010

  4. Accomplishments 1: Advancing GENI Spiral 2 Goals • Relationship to GENI Spiral 2 Goals are described in “GENI Spiral 2 Overview”, section 7: • Continuous experimentation • Demo page up at: • http://illusion.hpl.hp.com:8180/geni/demo.jsp The help pages for that can be accessed at: • http://illusion.hpl.hp.com:8180/geni/demoHelp.html • Instrumentation and measurement • Collaborating with other researchers on GENI I&M specification document version 0.5 • Integration with ProtoGENI • Interoperation with other control frameworks, e.g., PlanetLab • Increased security • Careful admission control and scheduling of measurement requests prevents misuse August 30th, 2010

  5. Accomplishments 2:Other Project Accomplishments • Discussions on similarities and differences with other measurement projects; participation in conference calls, etc. • Service on TPCs of SIGMETRICS, INFOCOM, ICNP, COMSNETS, … • Presentation on INFOCOM panel • Posters on the project at several events • Publications: • “Distributed Partial Inference under Churn,” Sriharsha Gangam, Sonia Fahmy, In Proceedings of the IEEE Global Internet Symposium, 6 pp., March 2010. • "Leveraging Correlations Between Capacity and Available Bandwidth To Scale Network Monitoring,” Praveen Yalagandula, Sung-Ju Lee, Puneet Sharma, Sujata Banerjee, In Proceedings of IEEE GlobeCom 2010, accepted for publication. • "On the Cost of Network Inference Mechanisms," Ethan Blanton, Sonia Fahmy, Greg N. Frederickson, Sriharsha Gangam, IEEE Transactions on Parallel and Distributed Systems (TPDS), 14 pp., accepted for publication. August 30th, 2010

  6. Issues • Interface with other projects • Redundancy with other projects • Delays due to contracts, staffing, etc. August 30th, 2010

  7. Plans • Plans for the remainder of Spiral 2: • Code/documentation improvements • Increase usability • Testing and performance evaluation • Specification document • Potential Spiral 3 work: • Dynamic invocation of inference based on measurement workload: • Large overhead for probing and data exchange • O(N2) measurements in a network of N nodes • Dynamically changing  Need frequent probing • Inference based on incomplete information • Exploit properties such as triangular inequality • A coarse estimate may suffice for many applications • Admission control/scheduling • Characterize active measurement tools • Prioritize measurement requests according to defined policies • Schedule measurements to mitigate interference • Integration with other measurement projects August 30th, 2010

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