1. Multicasting in the Internet

2. In the beginning there was the Internet…

3. …and the Internet was multicast-less

4. Growing trees in the Internet

5. Why not to write all the destination into one packet? Jarle Søberg Piotr Kamisinski Morten Lindenberg Vera Goebel Thomas Plagemann Ovidiu Valentin Drugan Matija Puzar Stein Kristiansen Kennedy Samuel Kamwendo Daniel Rodríguez Fernández Ellen Munthe-Kaas Kjell Åge Bringsrud Hoang Viet Nguyen Piotr Srebrny Sebastian Hi…

6. Maybe, let’s create groups in the Internet… DMMS Group Hi, I would like to invite you to the presentation on the IP Multicast issues.

7. …and the resulting types of trees differ very…

8. We want the multicast that achieves enormous scalability!! Scalability was like the Holy Grail for multicast community.

9. The first multicast service model: Any Source Multicast (ASM) DMMS Group

10. The first multicast service model: Any Source Multicast (ASM) DMMS Group

11. Limited number of channels which were not allocated…

12. … it lacked congestion control mechanisms…

13. …it was open…

14. … and it needed full deployment to work.

15. So, IP Multicast evolved… … and after 10 years of non-random mutations

16. Single Source Multicast

17. But still aiming at the enormous scalability.

18. What is IP Multicast? DVMRPPIM-DM PIM-SM MOSPF MSDP MLDv2 IGPMv2 IGPMv3 MBGP BGP4+ MLDv3 AMT PIM-SSM PGM MAAS MADCAP MASC IGMP Snooping CGMP RGMP

19. Inherited problems of the multicast architecture Inherited problems of the multicast architecture

20. Did IP Multicast fail?