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Simulation of BGP Protocol

Simulation of BGP Protocol. Using OPNET IT Guru Simulating Tool. Ahmad Salam AlRefai Wael F. Al Takrouri December 28, 2008. Outline. Introduction Autonomous System Border Gateway Protocol OPNET IT Guru Simulation Procedure Conclusion Questions & Answers. Introduction.

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Simulation of BGP Protocol

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  1. Simulation of BGP Protocol Using OPNET IT Guru Simulating Tool Ahmad Salam AlRefai Wael F. Al Takrouri December 28, 2008

  2. Outline • Introduction • Autonomous System • Border Gateway Protocol • OPNET IT Guru • Simulation Procedure • Conclusion • Questions & Answers AlRefai & Al Takrouri

  3. Introduction • Simulation of Border Gateway Protocol using IT Guru as simulation tool. • Measure the performance of BGP protocol of a baseline model (consists of no. of Autonomous Systems) AlRefai & Al Takrouri

  4. Autonomous System • Autonomous System (AS) is a group of routers that are typically under the same administrative control (operated by the same ISP or belonging to the same company)[1]. • Routers within the same AS all run the same algorithm. AlRefai & Al Takrouri

  5. Autonomous System (cont.) Three Autonomous Systems[2] AlRefai & Al Takrouri

  6. Autonomous System (cont.) • Each AS has one or more router(s) that are responsible communicating with other Ass and responsible for forwarding packets to destination these routers are called gateway routers or border routers. • Each AS has a unique number that distinguishes it from other AS this number is called the autonomous system number or ASN AlRefai & Al Takrouri

  7. Border Gateway Protocol • Border Gateway Protocol or BGP is routing protocol for the internet. • There are two forms of BGP, Interior Border Gateway Protocol or IBGP when it runs on same AS and Exterior Border Gateway Protocol when it runs on between different Autonomous Systems AlRefai & Al Takrouri

  8. Border Gateway Protocol (BGP) • Mainly BGP provide AS with methods to • Obtain subnet reachablitiy information form neighboring AS • Propagate the reachablitiy information to all router in a AS • Determine good routers to subnet based one the reachablitiy information and AS policy AlRefai & Al Takrouri

  9. OPNET IT Guru • OPNET IT Guru Academic 9.1 is selected as simulating tool • Run Windows operating system • Has many good features • Usability • Supporting large number of simulated devices • Speed of Simulation AlRefai & Al Takrouri

  10. Simulation Procedure AlRefai & Al Takrouri

  11. Simulation Procedure AlRefai & Al Takrouri

  12. Simulation Result AlRefai & Al Takrouri

  13. AlRefai & Al Takrouri

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  16. AlRefai & Al Takrouri

  17. Slip8_gtwy AlRefai & Al Takrouri

  18. PPP_DS3 AlRefai & Al Takrouri

  19. Router Naming AlRefai & Al Takrouri

  20. After Arrangement AlRefai & Al Takrouri

  21. Set Autonomous Number AlRefai & Al Takrouri

  22. larger AlRefai & Al Takrouri

  23. Set Autonomous Number AlRefai & Al Takrouri

  24. Don’t Forget to … Check Apply Changes to Selected Objects AlRefai & Al Takrouri

  25. Check Links AlRefai & Al Takrouri

  26. Run AlRefai & Al Takrouri

  27. Before you run AlRefai & Al Takrouri

  28. Running AlRefai & Al Takrouri

  29. Running AlRefai & Al Takrouri

  30. Go to file and do refresh AlRefai & Al Takrouri

  31. larger AlRefai & Al Takrouri

  32. Open Generic Data file AlRefai & Al Takrouri

  33. Select .. AlRefai & Al Takrouri

  34. larger AlRefai & Al Takrouri

  35. Set Neighboring Information AlRefai & Al Takrouri

  36. Edit Neighboring Infos AlRefai & Al Takrouri

  37. You can set timer parameters AlRefai & Al Takrouri

  38. Export Routing… AlRefai & Al Takrouri

  39. larger AlRefai & Al Takrouri

  40. Run for 30 Minutes AlRefai & Al Takrouri

  41. For Routing table you can export AlRefai & Al Takrouri

  42. We can now select statistics Right Click on Empty Place Choose Individual Statistics AlRefai & Al Takrouri

  43. AlRefai & Al Takrouri

  44. Click View Results Button AlRefai & Al Takrouri

  45. Some Results – overall AlRefai & Al Takrouri

  46. Some Results – on R10 AlRefai & Al Takrouri

  47. Average and overlaid AlRefai & Al Takrouri

  48. Simulation Log AlRefai & Al Takrouri

  49. IP routing table/ choose router and see the routing table AlRefai & Al Takrouri

  50. Routing table AlRefai & Al Takrouri

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