measure: what, how, and why


advanced end-to-end probing techniques to measure 
capacity (max possible throughput in empty path) 
available bandwidth (max throughput under current load)

state-of-the-art approaches
packet train dispersion (PTD)
variable packet size (VPS)
self-loading periodic streams (SLoPS)

payoffs
methodologies to check for over/under-buffered network paths
smooth pacing in TCP, driven by bwest measurements
smooth bwest driven rate control for UDP-based applications