[e2e] end2end bandwidth estimation

[Vivek Rai]

Hi,

	The end2end bandwidth estimation problem is categorized in three main ways
depending on its applications:
1. Bottleneck bandwidth estimation
2. Available bandwidth estimation
3. Bulk Transfer Capacity estimation

	 There will be a sizable "available bandwith" along a link only if the
flows traversing it are inelastic or they are rate limited due to maximum
window size limitation. Since the Internet mostly comprises of the elastic
traffic therefore the first assumption seems to be improbable whereas second
assumption suggests that the links along the path are underprovisioned. In
any case i am not able to understand what are the possible applications of
measuring the available bandwidth.

Thanks,
Vivek