发明名称 |
Error detection and correction method for an asynchronous transfer mode (ATM) network device |
摘要 |
An adaptive error detection and correction apparatus for an Asynchronous Transfer Mode (ATM) network device comprises a sensing unit for sensing a congestion condition in the ATM network and a global pacing rate unit for adaptively reducing a maximum allowable transmission ratio of ATM cells containing information to idle ATM cells in response to a sensed congestion condition. A processor stores a number corresponding to a relatively high maximum allowable transmission ratio in the global pacing rate register in the absence of a sensed congestion condition, and stores a number corresponding to a relatively low maximum allowable transmission ratio in the global pacing rate register in response to a sensed congestion condition. A controller adjusts the maximum allowable transmission ratio in accordance with the number stored in the global pacing rate register. A plurality of peak pacing rate counters reset to predetermined values upon decrementation to zero, the predetermined values corresponding to service intervals for segmentation of Conversion Sublayer Payload Data Unit (CD-PDU)s. The processor further includes circuitry for assigning the counters to selected CD-PDUs, and sensing the counters to determine whether or not segmentation of the selected CD-PDUs is within the respective service intervals. The apparatus further includes a channel group credit register having bits corresponding to the respective counters.
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申请公布号 |
US5654962(A) |
申请公布日期 |
1997.08.05 |
申请号 |
US19950519649 |
申请日期 |
1995.08.25 |
申请人 |
LSI LOGIC CORPORATION |
发明人 |
ROSTOKER, MICHAEL D.;STELLIGA, D. TONY |
分类号 |
H04Q3/00;G06F13/12;H04L12/26;H04L12/56;H04N5/00;H04N7/24;H04N7/26;H04N7/50;H04Q11/04;(IPC1-7):H04L12/56 |
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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