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BRITE integration with ns-3

BRITE integration with ns-3. Joshua Pelkey and Dr. George Riley. Wns3 March 25, 2011. Overview. The Boston University Representative Internet Topology gEnerator (BRITE) Topology generation framework Integrating with ns-3

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BRITE integration with ns-3

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  1. BRITE integration with ns-3 Joshua Pelkey and Dr. George Riley Wns3 March 25, 2011

  2. Overview • The Boston University Representative Internet Topology gEnerator (BRITE) • Topology generation framework • Integrating with ns-3 • Leverage the power of BRITE, i.e. let BRITE create the topologies and ns-3 run the simulations

  3. Project Goals • Easily leverage the power of BRITE within ns-3, to create large-scale Internet topologies • Provide example ns-3 script to show use • Code documentation, including doxygen • Manual section • Use download.py to completely modularize BRITE in ns-3

  4. Implementation Overview • Original BRITE C++ code is (very) slightly modified and maintained in a mercurial repo on the ns-3 code server • This repo is pulled down and built with the included Makefile. A library, libbrite.so is built • This library is linked with ns-3 during the ./waf build process in ns-3 • Helper class, BriteTopologyHelper, exists to interface with the original BRITE code which builds the topology. Finally, the helper creates an identical ns-3 topology and can be used to set up simulations

  5. Usage and Demo • After linking BRITE, try some of these to see it in action -- make sure python bindings are enabled if you want to use the visualizer: • ./waf --run ‘brite-generic-example’ --visualize • ./waf --run ‘brite-generic-example --confFile=../BRITE/conf_files/RTBarabasi20.conf’ --visualize • ./waf --run ‘brite-generic-example --confFile=../BRITE/conf_files/RTBarabasi.conf’ –visualize • To randomize the topology node placement and link bandwidths and delays, pass in a new seed file: • ./waf --run ‘brite-generic-example --newseedFile=../BRITE/seed_file’ --visualize

  6. RTWaxman5 Figure 1. RTWaxman5 (5 nodes, 7 edges)

  7. RTWaxman20 Figure 2. RTWaxman20 (20 nodes, 40 edges)

  8. RTBarabasi Figure 3. RTBarabasi (100 nodes, 197 edges)

  9. ASWaxman Figure 4. ASWaxman (1000 nodes, 2000 edges)

  10. Project Goals: status • Easily leverage the power of BRITE within ns-3, to create large-scale Internet topologies • Provide example ns-3 script to show use • Code documentation, including doxygen • Manual section • Use download.py for BRITE in ns-3

  11. More Information • BRITE website: http://www.cs.bu.edu/brite/ • Ns-3 BRITE integration wiki with instructions to get the code, build, and use: http://www.nsnam.org/wiki/index.php/Ns3_BRITE_Integration or just search for “ns-3 BRITE” in Google

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