| 摘要 |
The present invention includes a system for determining cell loss among on-off sources on a network by (a) receiving cells; and (b) measuring aggregate cell loss of said sources at port level. The method preferably includes determining aggregate cell loss of the sources; determining mean rate of each of the sources; determining burstiness of each of the sources; determining average burst length of each of the sources; determining buffer size; and approximating the cell loss ratio of each of the sources based substantially only upon the aggregate cell loss, the mean rate, the burstiness, and the average burst length. This approximation can be calculated using the formula:where gammai is individual cell loss ratio, gamma is aggregate cell loss ratio, rj is mean rate, and A is computed from the formula:where Ti is average burst length of each of said sources, Bi is burstiness, and B is buffer size.
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