Patent · US Expired

System for determining individual cell/pocket loss in ATM/IP networks among on-off sources

US6621797B1 · kind B1 · utility

0Cited by
4References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 18, 1999
Grant dateSep 16, 2003
Priority date
Expiry dateMar 18, 2019

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2012/5647
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

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 &ggr;i is individual cell loss ratio, &ggr; 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.