发明公开
EP1021060A3 High speed weighted fair queuing system for ATM switches
有权
系统管理软件Warteschlangen mit hoher GeschwindigkeitfürATM Vermittlungstellen
- 专利标题: High speed weighted fair queuing system for ATM switches
- 专利标题(中): 系统管理软件Warteschlangen mit hoher GeschwindigkeitfürATM Vermittlungstellen
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申请号: EP99307086.1申请日: 1999-09-07
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公开(公告)号: EP1021060A3公开(公告)日: 2003-01-02
- 发明人: Chen, Chien , He, Linhai , Wong, Albert Kai-sun
- 申请人: LUCENT TECHNOLOGIES INC.
- 申请人地址: 600 Mountain Avenue Murray Hill, New Jersey 07974-0636 US
- 专利权人: LUCENT TECHNOLOGIES INC.
- 当前专利权人: LUCENT TECHNOLOGIES INC.
- 当前专利权人地址: 600 Mountain Avenue Murray Hill, New Jersey 07974-0636 US
- 代理机构: Watts, Christopher Malcolm Kelway, Dr.
- 优先权: US153352 19980915
- 主分类号: H04Q11/04
- IPC分类号: H04Q11/04
摘要:
Methods and apparatus for an ATM network for implementing a fair servicing of all connections during a back-logged condition through the use of a weighted fair queuing technique. The system is particularly suited for systems where the packets/cells are of a fixed size. Although some important approximations are made in the proposed implementation, all ofthe properties of an ideal weighted fair queuing algorithm are preserved. The sorting methods and apparatus are advantageous in that it is possible to maintain appropriate servicing of connections without sorting all ofthe individual connections. This may be accomplished by pre-sorting each of the individual virtual circuit connections into a finite number of predetermined bins according to a weight associated with the connection. Thereafter, only the bins need be sorted without having to sort each ofthe individual connections. Further aspects ofthe invention include storing the bins in a matrix with an offset value dependent upon the current potential of the bin. In this manner, the overall sorting required to determine the next connection to service is substantially reduced. Accordingly, the invention is suitable for implementations having transmission speeds of multiple gigabits-per-second.
公开/授权文献
- EP1021060B1 High speed weighted fair queuing system for ATM switches 公开/授权日:2009-03-18
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