这是一篇端到端可用带宽测量论文，文章所提到的测量方法是基于自拥塞原理，不断提高数据包的发送速率，当发送速率大于可用带宽时，包列的排队延迟就出现上升趋势，这时的发送速率可当作可用带宽的估计值。-The basic idea in pathload is that the

one-way delays of a periodic packet stream show

increasing trend, when the stream rate is larger

than the available bandwidth. In this paper, we

describe pathload in detail, and show some ex-

perimental results that illustrate the tool s accu-

racy.