R.G. Cole - AT&T Labs1rperfmon BOF Active Probes for Performance Monitoring (APPM) Draft: posted to DISMAN WG list Authors: Cole, R., Kalbfleisch, C. and D. Romascanu Outline: Introduction Goals and Objectives Architecture Previous and Related Work Configuration Issues Implementation Issues Security Issues Next Steps

R.G. Cole - AT&T Labs2rperfmon BOF Active Probes for Performance Monitoring (APPM) Goals and Objectives: Define a complimentary, ‘active’ probe capability Identifies the utility of active probes, e.g., –troubleshooting paths –circuit pre-test and turn-up –fault management –baselining enhancements –end-to-end capacity management –Service Level Agreement (SLA) monitoring Active versus Passive Monitoring –control over the sampling –control over probe characteristics –traffic generation

R.G. Cole - AT&T Labs3rperfmon BOF Active Probes for Performance Monitoring (APPM) Architectural Issues: Network layer and application layer Configuration control Relationship to fault management and data reduction –Standard instrumentation, data reduction and reporting (e.g., via RMON methods) Deployment considerations –Relationship to passive probes Security of active probe methods

R.G. Cole - AT&T Labs4rperfmon BOF Active Probes for Performance Monitoring (APPM) Related Work: IPPM WG –set of performance metrics, sampling methods,.. DISMAN WG –active probes for fault management, some performance info,... RMON WG –passive monitoring, application monitoring (work in prog), reporting,... ApplMIB WG –application and service mgmt (fault, configuration and performance),... Others to be discussed: –RTFM, BMWG, frnetMIB

R.G. Cole - AT&T Labs5rperfmon BOF Active Probes for Performance Monitoring (APPM) Configuration Issues: Sampling methods –IPPM work on sampling methodologies Probe configurations –static, sampling control, data config, path config,... Statistics, Reports and Historical Data –data reduction, standard reporting methods, raw data,.. Indexing to Other Measurements –correlation of end-to-end service level monitoring to component level monitors

R.G. Cole - AT&T Labs6rperfmon BOF Active Probes for Performance Monitoring (APPM) Implementation Issues: Requirements on Implementations –bounds on packet generation, clock resolution,.. Error Analysis Statements –statement on the accuracy of the measurement process and results Compliance Tests –assessing the conformance of a probe

R.G. Cole - AT&T Labs7rperfmon BOF Active Probes for Performance Monitoring (APPM) Potential Work Items: Develop a framework/architecture document –and possibly a separate security document Develop a MIB for active probes and others for usage of the MIB Define a set of transport level metrics (e.g., IPPM) and a set of corresponding probes Define a set of application level metrics and probes