发明名称 |
Back-pressure type ATM switch |
摘要 |
A back-pressure type ATM switch wherein a variety of high-quality and flexible services can be served with high hardware/software efficiency. A resource manager provided to each input buffer, performs rejection control of cells according to RTQL (Rejection Threshold Queue Length) of each of sxn input queues, RTQL of each of s QoS-class virtual resources and a minimum guaranteed resource of each of the sxn input queues referring to RTQL of a common resource. A shaper accompanying each of the sxn input buffers shifts cells into a virtual queue at a speed obtained by (minimum guaranteed speed)+(rate information)x(active VC number of the input queue). A rate controller calculates the rate information as a function of the sum of the virtual queue of each of the sxn input queues of every of the input buffers. A back-pressure connector provided to the input queue read controller of each input buffer defines correspondence between back-pressures generated by output buffers and back-pressures referred to by the input queue read controller.
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申请公布号 |
US6532234(B1) |
申请公布日期 |
2003.03.11 |
申请号 |
US19980107955 |
申请日期 |
1998.06.30 |
申请人 |
NEC CORPORATION |
发明人 |
YOSHIKAWA SUMINORI;USHIYAMA KAZUHIRO |
分类号 |
H04Q3/00;H04L12/56;(IPC1-7):H04L12/28 |
主分类号 |
H04Q3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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