{"title":"Packet arrival time in 1588 for 40GE/100GE","authors":"D. Mendel, H. Schmit, D. Vijayaraghavan","doi":"10.1109/ISPCS.2012.6336614","DOIUrl":null,"url":null,"abstract":"1588 timestamping assumes a well-defined instant at which the beginning of a packet crosses the reference plane between the precision time protocol (PTP) node and the network. However, this definition is not clear in the case of a multi-lane serial bus such as 40GE/100GE. Furthermore, there is an implied time-ordering between the lanes of a serial bus that is not captured in the existing definition. This paper explores issues with multi-lane serial buses as it relates to time-stamping and proposes revised definitions for packet arrival time in the case of a serial bus.","PeriodicalId":153925,"journal":{"name":"2012 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication Proceedings","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISPCS.2012.6336614","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
1588 timestamping assumes a well-defined instant at which the beginning of a packet crosses the reference plane between the precision time protocol (PTP) node and the network. However, this definition is not clear in the case of a multi-lane serial bus such as 40GE/100GE. Furthermore, there is an implied time-ordering between the lanes of a serial bus that is not captured in the existing definition. This paper explores issues with multi-lane serial buses as it relates to time-stamping and proposes revised definitions for packet arrival time in the case of a serial bus.
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