| 摘要 |
The idle capacity of a packet network channel is dynamically estimated by transmitting only a single window of test packets at whatever window size is presently in use on the channel and by measuring the time intervals between acknowledgments (the inter-acknowledgment time) of adjacent packets. This value is used, for example, to dynamically allocate the idle bandwidth to applications. Preferably, an average value for the inter-acknowledgment time interval is calculated from all of the acknowledgment intervals associated with the window of packets. The idle capacity of the channel is then calculated from the formula C=1/IAvg, where C is the idle capacity in packets per second and IAvg is the average acknowledgment time between packets. Additionally, the same parameters that are collected to calculate the idle capacity are used to calculate the optimal window size, also on a dynamic basis.
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