Published on October 15, 2007
Traffic Measurements: Traffic Measurements Subprogram 1, Workpackage 1b (ETOMIC) Participating partners: Participating partners Collegium Budapest Public University of Navarra Ericsson AB Tel Aviv University Infrastructure stations 2006: Infrastructure stations 2006 Slide4: Each measurement station consists of: Server PC architecture DAG 3.6 GE card with packet sending capability (Endace) own GPS antenna for time synchronization Repository and data processing: Everlab IBM blade center Central management system Access via www.etomic.org Deliverables and Milestones: Deliverables and Milestones 36 Months: D.1b.3 Spatio-temporal periodic mapping of the European Internet traffic. M.1b-3.1 Implementation of BART tool in ETOMIC [M32]. M.1b-3.2 ETOMIC-DIMES permanent interoperability [M32]. M.1b- 3.3 Final ETOMIC visualization tools [M36]. M.1b-3.4 European periodic traffic tomography map [M36]. 48 Months: D.1b.4 Complex Model of Internet traffic for extended simulations. M.1b-3.5 Final form and documentation of BART [M48]. M.1b-3.6 Advanced final ETOMIC measurement archives [M48]. Meetings in 2006: Meetings in 2006 February: ETOMIC workshop in Budapest Participants: Colbud, TAU, Pamplona, Lousanne, Ericsson, HUJI -- Agreement on the joint implementation steps of the ETOMIC-DIMES measurements -- Agreement on the joint implementation steps of BART in ETOMIC -- Agreement on the steps of the WP1c whitepaper May: Meeting with the MoMe (IST Cluster Project) May: Ohad Serfaty (TAU) and Jozsef Steger (Colbud) work in Budapest and integrate the pattern generator into DIMES September: Meeting in Budapest with Darlagiannis Vasilios (Lausanne) to finalize the white paper December: Rome Main technical accomplishments in the etomic system : Main technical accomplishments in the etomic system New scriptable interface New periodic measurements Open repository with public results. Final ETOMIC visualization tools Scriptable interface using URL coding SCRIPTInfo: Get info about finished experiments. SCRIPTDownload: Download an experiment. SCRIPTRemove: Remove an experiment Periodic measurements : Periodic measurements Before Now Periodic measurement Experiment Experiments Implementation of BART tool in ETOMIC : Implementation of BART tool in ETOMIC BART – Bandwidth Available in Real-Timedeveloped by Ericsson Research: BART – Bandwidth Available in Real-Time developed by Ericsson Research Active probing Alternate the probe traffic intensity u Use timestamps to compute the strain between probe packet pair Ɛi = relative time dispersion of probe pair i = The average strain Ɛ of N probe packet pairs serves as an input parameter to the Kalman filter Available bandwidth distribution: Available bandwidth distribution European periodic tomography map+ final visualization tools : European periodic tomography map + final visualization tools Network Tomography: Network Tomography Method: we send back-to-back packet pairs and measure their end-to-end delay at arrival with very high precision Goal: to resolve delay statistics on internal network segments too, where we do not have monitoring stations Key idea: delay correlation on the common segment for the packets in a pair SP4 message passing algorythm is used now New periodic tomography measurementand its Google Map visualization tool: New periodic tomography measurement and its Google Map visualization tool Tree visualization tool for tomography:end-to-end delay: Tree visualization tool for tomography: end-to-end delay Tree visualization of tomography:internal delay distribution: Tree visualization of tomography: internal delay distribution One way delay (OWD) : One way delay (OWD) From all nodes to all nodes in ETOMIC system Twice a day (12 hours minimum interval) 300 packets for each source/destination Packet size 46 bytes Data available since december 2005 Results available on the web Quick visualization: Quick visualization #src dst timestamp delay hops ipid packet_size packets_sent 188.8.131.52 184.108.40.206 1165012406853288055 47716141 15 1 46 300 220.127.116.11 18.104.22.168 1165012407853289247 47131300 15 2 46 300 22.214.171.124 126.96.36.199 1165012408853288711 47589957 15 3 46 300 188.8.131.52 184.108.40.206 1165012409853288591 47452569 15 4 46 300 220.127.116.11 18.104.22.168 1165012410853288949 47161877 15 5 46 300 22.214.171.124 126.96.36.199 1165012411853289187 47433138 15 6 46 300 188.8.131.52 184.108.40.206 1165012412853288293 47639072 15 7 46 300 220.127.116.11 18.104.22.168 1165012413853289307 47383010 15 8 46 300 22.214.171.124 126.96.36.199 1165012414853288353 47460735 15 9 46 300 188.8.131.52 184.108.40.206 1165012415853288949 47564626 15 10 46 300 220.127.116.11 18.104.22.168 1165012416853290082 47257125 15 11 46 300 22.214.171.124 126.96.36.199 1165012417853289068 47008753 15 12 46 300 188.8.131.52 184.108.40.206 1165012418853289545 47578037 15 13 46 300 220.127.116.11 18.104.22.168 1165012419853289009 47124266 15 14 46 300 […] OWD Pamplona - Jerusalem Periodic traceroute measurements: Periodic traceroute measurements From all nodes to all nodes in ETOMIC system Twice a day (12 hours minimum interval) 3 packets per hop (TTL) per destination Data available since march 2005 Results available on the web Traceroute topology: Traceroute topology Clock synchronization (GPS): Clock synchronization (GPS) Parameters dag-offset:offset in microsecond betwen system clock (PC) and dag card. pps-offset:offset in microsecond betwen PPS signal from GPS and NTP clock. satellite-count: number of satellites in view. From all nodes in ETOMIC system 5 minutes minimum interval Data available since april 2005 Results available on the web Plans and progress for 2007: Plans and progress for 2007 Virtual observatory: Virtual observatory Database interface and schema: Database interface and schema Uploaded 2.5 billion measurements Complex traffic model: Complex traffic model Working hypothesis: Medusa: Working hypothesis: Medusa Analysis of queuing delay statistics: Analysis of queuing delay statistics Analysis of link delay statistics: Analysis of link delay statistics Log-normal link delay statistics : Log-normal link delay statistics Publications and patents in WP1b: Publications and patents in WP1b Slide31: Infocom 2006: 1 paper + 3 presentations Global Internet Symposium 2006: 1 paper Papers/conferences: 15 papers Patents: 1 Thank you !: Thank you !