发明名称 |
High speed internetworking traffic scaler and shaper |
摘要 |
A method and system are provided for traffic shaping and bandwidth scaling in a high speed internetworking device. A slot time wheel mechanism is provided for traffic rate control and a credit/debit mechanism is provided for traffic shaping and scaling. The high speed traffic scaler and shaper incorporates a programmable slot time wheel, a traffic scaler state machine, a traffic shaper parameter table and a traffic scaler processor. The traffic scaler processor incorporates a traffic queue allocation manager, a queue priority arbiter, a port enable selector, a port priority arbiter and a DMA channel arbiter. The traffic queue allocation manager and the queue priority, port priority and DMA channel arbiters are each controlled by a corresponding state machine. The parameters in the traffic shaper parameter table are dynamically updated for each logical queue and are used to enable the credit/debit mechanism.
|
申请公布号 |
US6052375(A) |
申请公布日期 |
2000.04.18 |
申请号 |
US19970980090 |
申请日期 |
1997.11.26 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BASS, BRIAN M.;ERVIN, JIM P.;HENDERSON, DOUGLAS RAY;KU, EDWARD HAU-CHUN;LEE, JOSEPH KINMAN;LEMKE, SCOTT J.;RASH, JOSEPH M.;REISS, LOREN BLAIR |
分类号 |
H04L12/56;(IPC1-7):H04L12/56 |
主分类号 |
H04L12/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|