[e2e] P2P Streaming alternatives??

[Jon Crowcroft]

hybrid p2p and multicast?

neflix?


In missive <4844A24B.7020105 at gmail.com>, hsanson typed:

 >>
 >>I have been researching on scalable real time streaming architectures 
 >>and everybody seems to be betting on P2P streaming. If you see the 
 >>current alternatives then the P2P streaming idea does not look so bad.
 >>
 >>- Classic server/client architecture simply accept as many clients as 
 >>server resources allow and refuse connection to any new clients.
 >>
 >>- Content Delivery Network, increase capacity as needed by adding more 
 >>servers to the CDN, that is costly and normally wastes those resources 
 >>on non peak times.
 >>
 >>- IP multicast, that would be the optimal solution but as I understand 
 >>only works on corporate environments and so far will never expand to 
 >>cover the Internet.
 >>
 >>- P2P sounds like the perfect solution, keep enough resources to serve a 
 >>few clients and in peak sessions use client resources to distribute the 
 >>media. As demand increases so the available resources (bandwidth) increase.
 >>
 >>But the technical challenges we need to overcome in order to enable P2P 
 >>streaming are too high:
 >>
 >>  - dynamic clients can disrupt others connections.
 >>  - security, any client can inject other data to the stream.
 >>  - heterogeneous clients, not all clients have equal capacity.
 >>  - P2P distributed, scalable and fast management algorithms.
 >>
 >>So I wonder if there exist any other alternative to cheap, scalable 
 >>media streaming apart from the architectures mentioned above? or shall I 
 >>focus my research somewhere else.
 >>
 >>comments are welcome,
 >>Horacio

 cheers

   jon