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Measurement & Analysis of Global Grid & Internet End to end performance (MAGGIE). Network Performance Measurement. SLAC Dr. Les Cottrell Dr. Yee-Ting Li Mr. Asif Khan Mr. Shahryar Khan Mr. Akbar Mehdi. NIIT Dr. Arshad Ali Mr. Umar Kalim Mr. Azher Amin Mr. Adnan Iqbal Mr. Qasim Bilal
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Measurement & Analysis of Global Grid & Internet End to end performance (MAGGIE) Network Performance Measurement
SLAC Dr. Les Cottrell Dr. Yee-Ting Li Mr. Asif Khan Mr. Shahryar Khan Mr. Akbar Mehdi NIIT Dr. Arshad Ali Mr. Umar Kalim Mr. Azher Amin Mr. Adnan Iqbal Mr. Qasim Bilal Mr. Ahmad Hassan Mr. Faran Javed Mr. Fahad Ahmed Mr. Nauman Shah Team Members
SLAC Mr. Jerrod Williams Ms. Connie Logg NIIT Dr. Waqar Mehmood Mr. Ahsan Chaudry Mr. Ejaz Ahmed Mr. Fawad Nazir Mr. Aziz Allaudin Ms. Fareena Saqib Ms. Asma Shamshad Mr. Raja Asher Mr. Waqar Ali Ms. Rabail Javed Alumni
Ongoing Projects • PingER • IEPM • Trilateration Utility for Locating IP Addresses • Event Detection • Event Diagnosis • Topology Service for PerfSONAR • Network Weather Forecasting • DataGrid WAN Monitoring Infrastructure (DWMI) Terapaths Monitoring Project
PingER Methodology >pingremhost Uses ubiquitous ping Internet Remote Host (typically a server) Monitoring host 10 ping request packets each 30 mins Once a Day Ping response packets Data Repository @ SLAC Measure Round Trip Time & Loss
PingER (Sub Projects) • SmokePing PingER Integration • ViPER - Visualization for PingER • AMP PingER Integration • PingER Executive Plots • PingER Management • ICFA/SCIC Report Most of South Asia has good connectivity • Greater Coverage Area • Min RTTs are decreasing globally For S.Asia Loss decreasing, still far behind others
Topology Service for PerfSONAR • To archive network topology information needed for the operation of perfSONAR and • Visualization tools. • Each AS has to maintain its own topology database and publish it to the perfSONAR framework. • The ToS will define a topology information data format to allow for an easy processing of topology information. • Beside of the current topology, it should contain past and planned network configuration. • Each AS should register its ToS with the Lookup Service, so that the topology becomes available to every interested user.
Trilateration Utility for Locating IP Addresses (TULIP) • http://maggie.niit.edu.pk/newwebsite/tulip/ • Java applet (needs Java Webstart) • Friendly client, easy vizualization • Need landmarks around world Pings min/avg/max from landmarks to targets Landmarks Target Enter target Traceroutes from landmarks to targets
Automated Event Detection Based on IEPM-BW Different Network Monitoring tools (Ping, IPerf, Thrulay, Pathchirp etc) Variety of Metrics (Throughput, RTT, available bandwidth, Traceroutes) Topology (5 Monitoring Hosts, Over 25 Monitored nodes) Different Mechanisms (Holt-winters, Plateau etc) Alerts are • Detected • Reported through e-mail • Stored in database • Made available on web
Event Diagnosis • End-to-end analysis; assume that the problem may not just be from the network • Initiate analysis of all available results when an event is detected • Search Event DB for each metric checked on each host and used to cross correlate results between Monitoring Hosts or Monitored Nodes • Use heuristics defined with a simple summation algorithm to narrow down the location of a fault. • Tiered system used to pin-point exact cause of problem. • Start from high level to very low level to help locate, identify and verify cause of alert Heuristics based approach
DataGrid WAN Monitoring Infrastructure (DWMI) Terapaths Monitoring Project • Terapath • fully configurable passive monitoring infrastructure based on netflow records exported from routers • data collection and aggregation schemes • Flexible reporting infrastructure Traffic In Traffic out
Topology Service for PerfSONAR • PerfSONAR • Measurement Point Service • Measurement Archive Service • Authentication Service • Lookup Service • Topology Service • Transformation Service
Proposals (under process) • To establish a perfSONAR based network monitoring infrastructure in Pakistan • Next Generation Network Monitoring for Pakistan • To join the International perfSONAR project (currently: Europe, US & Brazilian NRENs):
Visit us @ http://maggie.niit.edu.pk http://confluence.slac.stanford.edu/display/IEPM/Home