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Introduction to Emu lab

Introduction to Emu lab . W W W of EMULAB. Who came up with Emulab??? What is Emulab??? Why something like EMULAB??. What is EMULAB!!!. Emulator (wherein u’ll use a simulator ) A facility to run large scale experiments. Why Do we Need Emulab Real world experience

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Introduction to Emu lab

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  1. Introduction to Emu lab

  2. W W W of EMULAB • Who came up with Emulab??? • What is Emulab??? • Why something like EMULAB??

  3. What is EMULAB!!! • Emulator (wherein u’ll use a simulator ) • A facility to run large scale experiments. Why Do we Need Emulab • Real world experience • Scalability test

  4. Internals of Emulab • Hardware facilities • Types of Nodes (pc600/850) • Ethernet cards • Software features • Default OS provided (Linux-RHT, BSD) • OS IMAGE : WHY DO WE NEED THIS, and how does it work

  5. OS – IMAGE Generation • Delta: Another name for Od-image creation e.g. : • sudo /usr/local/bin/create-delta proj/testbed/foo.delta • Sudo  root permission • Create delta  creates an image of the OS • foo.delta  file which will be accessed to load

  6. Using Emulab • How do I get an account ? ? ? • How do I create an experiment ? • How do I generate topologies • ns2 for generating topology (GUI to the rescue  ) • How do I Access the machines………

  7. Next step……… • ssh into the machines • Eg: Format for ssh name……. • ssh nodename.expname.projectname.emulab.net –l sachdr source.demo.bananas.emulab.net • Start working……the machine is up and running……

  8. Cool Features of EMULAB • Batch running • Real time log while creating • An EXCELLENT response time to problems  • Setting up latency, probability of loss, bandwidth, IP addresses …….the only thing that they don’t provide is…..user defined Ethernet addresses 

  9. That’s It…… • Try Working on it, worth it!!! • In case of doubts…. • sachdr@rpi.edu T H A N X F O R L I S T E N I N G A N D….. I H O P E… U N D E R S T A N D I N G 

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