--- vern@ee.lbl.gov wrote:

...

Any idea how can one do bandwidth measurement based on this?

vern paxson did extensive work in this area. van jacobson too.

For more recent work, see the papers of Constantine Dovrolis. (Likely others, too, but that's the work that comes immediately to mind.) ---------------------------------------------------- For the interested; a shortcut... I went looking and found: http://www.cc.gatech.edu/~dovrolis/publications-area.html Under the "Network bandwidth estimation: capacity, available bandwidth and per-link measurements" heading I found "Available bandwidth measurement as simple as running wget". wget? heh. Looks like a fun read! :-) scott