[e2e] admission control vs congestion control

[Lisong Xu]

Hi everybody,

Both congestion control-based and admission control-based approaches
were proposed for multimedia streaming over the Internet a few years
ago. Intuitively, admission control is more suitable for multimedia
streaming than congestion control, since admission control can provide
some guaranteed bandwidth.

However, it seems that congestion control-based approaches are
accepted by more people. I am wondering what the fundamental reason
is. Is it because congestion control-based approaches are
tcp-friendly, and then safer to implement in the Internet?

Thanks in advance!
Lisong