Distributed Network Performance Measurement and
Contents
1. PlanetLab OS Emulab etc e Research about Distributed Network Application and Service Distributed Media Streaming Gridmedia Content Distributed Network CoDeen Active Network Measurement lots of CERNET CERNET2 PlanetLab Architecture of DNMS Database Analvsis Server Central Con rol Server User Interface sensor Nodes Metrics of Measurement atency Packet Loss Bandwidth Availability Benefit from PlanetLab Distributed Machines Throughout the World Network Link Diversity Backbone Link DSL Link etc Soul of Internet Contribute a piece own the whole Human Network Almost involve All Top Universities Institutions Observation of Experiments Computer Failure Floppy CDROM media dusk Disk error Hardware Compatibility Link Failure Route Change Router Down Network Firewall Filters Future Direction e Federation Network Different OSs Different Protocols Privacy Network Community owned Network Overlay over Overlay Applications BT community Services Routers Conclusions Good Network Test bed Three Kinds of Research could be followed up Dynamic Nature of Network is always underestimated Join PlanetLab now http www planet lab org http www 6planetlab edu cn Questions and Comments Tao He hetao cernet edu cn Tsinghua University CERNet Center2. Distributed Network Performance Measurement and Troubleshooting Platform built on PlanetLab Tao He hetao cernet edu cn CERNET Annual Conference 2005 11 3 Dalian China Outline PlanetLab Overview Distributed Network Measurement and Troubleshooting Experimental Results Conclusions What is PlanetLab Planet Laboratory for global network experiment Organization Culture Technology Pervasive Robust Adaptive Scalable Planetary scale distributed network applications and services Why PlanetLab The procedure o of rk Research earc evelop System Des Develop a Distribution measitinsere Deploy Three kinds of Activities Development of PlanetLab like System Development of Services running on it Experimental Results Performed on it Architecture of PlanetLab PlanetLab Center root Political Sites Deputy PI Distributed Nodes Computer Resources Virtual Machines Isolated Users Heserved Port System Usage Distributed Nodes Virtual Machines System Administrator Common Users Overlay Networks Original Phone Internet Overlay Network Over Phone Network PlanetLab Overlay Over the Internet PlanetLab OS Vserver Virtual Machine Vnet gt Isolated Network Slice 3 A Set of Sliver PlanetLab Account gt PlanetLab Community PlanetLab Account Slice Slice 9 PlanetLab Nodes oample Research Project Research about Distributed System
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