How should the Internet evolve to better support multimedia? Integrated services philosophy: Differentiated services Fundamental changes in philosophy: Internet so that apps can Fewer changes to Internet reserve end-to-end infrastructure,yet provide bandwidth 1st and 2nd class service. Requires new,complex software in hosts routers Laissez-faire ▣no major changes ▣more bandwidth when needed content distribution, application-layer multicast What's your opinion? o application layer 7:Multimedia Networking 7-12 7: Multimedia Networking 7-12 How should the Internet evolve to better support multimedia? Integrated services philosophy:  Fundamental changes in Internet so that apps can reserve end-to-end bandwidth  Requires new, complex software in hosts & routers Laissez-faire  no major changes  more bandwidth when needed  content distribution, application-layer multicast  application layer Differentiated services philosophy:  Fewer changes to Internet infrastructure, yet provide 1st and 2nd class service. What’s your opinion?