【摘要】：片上網(wǎng)絡(luò)中鏈路是路由器之間連接的關(guān)鍵通路,其發(fā)生故障將嚴(yán)重影響網(wǎng)絡(luò)性能.針對(duì)這一問(wèn)題,提出了一種針對(duì)瞬時(shí)和間歇性故障的高可靠鏈路容錯(cuò)方法,該方法可以在網(wǎng)絡(luò)中實(shí)時(shí)檢測(cè)數(shù)據(jù)是否發(fā)生錯(cuò)誤,并以此定義瞬時(shí)故障和間歇性故障,從而進(jìn)行容錯(cuò).在減輕網(wǎng)絡(luò)擁塞和延時(shí)的同時(shí),保證了數(shù)據(jù)的正確傳輸,有效保障了系統(tǒng)的高可靠性.當(dāng)鏈路中發(fā)生瞬時(shí)故障導(dǎo)致數(shù)據(jù)出錯(cuò)且不能正確糾正時(shí),通過(guò)設(shè)置的重傳緩沖區(qū)內(nèi)備份的數(shù)據(jù)重新進(jìn)行傳輸.當(dāng)鏈路中發(fā)生間歇性故障導(dǎo)致數(shù)據(jù)出錯(cuò)且不能正確糾正時(shí),數(shù)據(jù)包傳輸被截?cái)?對(duì)被截?cái)嗟臄?shù)據(jù)重新添加頭微片或尾微片,從而進(jìn)行重新路由或資源釋放.實(shí)驗(yàn)結(jié)果表明:該容錯(cuò)方法在不同故障情況下較對(duì)比對(duì)象,均較大地降低了延時(shí),提高了吞吐率,該方法能有效地提高網(wǎng)絡(luò)的可靠性,保證了系統(tǒng)性能.
[Abstract]:On-chip network link is the key path between routers, and its failure will seriously affect the performance of the network. In order to solve this problem, a highly reliable link fault tolerant method for transient and intermittent faults is proposed, which can detect data errors in real time and define transient and intermittent faults. In order to make fault tolerance. While reducing network congestion and delay, it ensures the correct transmission of data and effectively ensures the high reliability of the system. When an instantaneous fault occurs in the link which results in data error and cannot be corrected correctly, the data backed up in the set retransmission buffer is transferred again. When an intermittent fault occurs in the link which leads to data error and cannot be corrected correctly, the packet transmission is truncated, and the header or tail microchip is added to the truncated data, and then the data is rerouted or released. The experimental results show that the fault tolerant method can greatly reduce the delay and increase the throughput compared with the contrast object in different fault cases. The method can effectively improve the reliability of the network and ensure the system performance.
【作者單位】： 合肥工業(yè)大學(xué)計(jì)算機(jī)與信息學(xué)院;合肥工業(yè)大學(xué)電子科學(xué)與應(yīng)用物理學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(61474036,61274036,61371025,61574052);國(guó)家自然科學(xué)基金青年科學(xué)基金項(xiàng)目(61402145) 安徽省自然科學(xué)基金青年基金項(xiàng)目(1508085QF138);安徽省自然科學(xué)基金項(xiàng)目(1508085MF117)~~
【分類(lèi)號(hào)】：TN47

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