翻訳と辞書 Words near each other ・ Service Control Manager ・ Service control point ・ Service Coordination ・ Service Corporation International ・ Service Corporation of America ・ Service Credit Union ・ Service Creek, Oregon ・ Service D ・ Service d'Action Civique ・ Service d'adresse mondial ・ Service d'exploitation de la formation aéronautique ・ Service d'Intelligence National ・ Service d'ordre légionnaire ・ Service Data Objects ・ Service data point ・ Service data unit ・ Service de Documentation Extérieure et de Contre-Espionnage ・ Service de la protection ・ Service de Luxe ・ Service de nuit ・ Service de police de la Ville de Laval ・ Service de police de la Ville de Montréal ・ Service de police de la Ville de Québec ・ Service de police de l’agglomération de Longueuil ・ Service de protection contre les incendies de Québec ・ Service de Renseignement de l’État ・ Service de sécurité incendie de l'agglomération de Longueuil ・ Service de sécurité incendie de Montréal ・ Service delivery framework ・ Service delivery platform Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Service data unit ： ウィキペディア英語版 Service data unit In Open Systems Interconnection (OSI) terminology, a service data unit (SDU) is a unit of data that has been passed down from an OSI layer to a lower layer and that has not yet been encapsulated into a protocol data unit (PDU) by the lower layer. It is a set of data that is sent by a user of the services of a given layer, and is transmitted semantically unchanged to a peer service user. It differs from a PDU in that the PDU specifies the data that will be sent to the peer protocol layer at the receiving end, as opposed to being sent to a lower layer. The SDU at any given layer, layer 'n', is the PDU of the layer above, layer 'n+1'. In effect the SDU is the 'payload' of a given PDU. That is, the process of changing a SDU to a PDU, consists of an encapsulation process, performed by the lower layer. All the data contained in the SDU becomes encapsulated within the PDU. The layer n-1 adds headers or footers, or both, to the SDU, transforming it into a PDU of layer n-1. The added headers or footers are part of the process used to make it possible to get data from a source to a destination. ==See also== * Federal Standard 1037C 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Service data unit」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.