关键词: 端到端, 带宽测量, 可用带宽, 自调节

Abstract: The available bandwidth is an important parameter of the performance of network router，Quality of Service（QoS），and traffic engineering etc.Most research works are based on Probe Gap Model（PGM） and Probe Rate Model（PRM）.But these methods have a hypothesis that background traffic is constant byte rate，and can not be used in low bandwidth measurement.The paper proposes an algorithm of end-to-end available bandwidth measurement with self-regulating rate of probe train，which fully considers the measurement situation of low bandwidth.Through regulating the delay and self-regulating of send rate of probe packet queue，the end-to-end available bandwidth measurement can be realized quickly and accurately.Experiment results show that the algorithm proposed in this paper is efficient.Especially with low bandwidth，it has better accuracy，faster speed and little effect on network.

Key words: end-to-end, bandwidth measurement, available bandwidth, self-regulating