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- Service_data_unit abstract "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.".
- Service_data_unit wikiPageExternalLink osi-model.htm.
- Service_data_unit wikiPageID "990657".
- Service_data_unit wikiPageLength "1274".
- Service_data_unit wikiPageOutDegree "4".
- Service_data_unit wikiPageRevisionID "637242550".
- Service_data_unit wikiPageWikiLink Category:Telecommunications_standards.
- Service_data_unit wikiPageWikiLink Federal_Standard_1037C.
- Service_data_unit wikiPageWikiLink Open_Systems_Interconnection.
- Service_data_unit wikiPageWikiLink Protocol_data_unit.
- Service_data_unit wikiPageWikiLinkText "SDU".
- Service_data_unit wikiPageWikiLinkText "Service data unit".
- Service_data_unit wikiPageWikiLinkText "service data unit".
- Service_data_unit hasPhotoCollection Service_data_unit.
- Service_data_unit subject Category:Telecommunications_standards.
- Service_data_unit hypernym Unit.
- Service_data_unit type Organisation.
- Service_data_unit comment "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.".
- Service_data_unit label "Service data unit".
- Service_data_unit sameAs Služební_datová_jednotka.
- Service_data_unit sameAs Service_Data_Unit.
- Service_data_unit sameAs Unidad_de_datos_de_servicio.
- Service_data_unit sameAs Service_Data_Unit.
- Service_data_unit sameAs Service_data_unit.
- Service_data_unit sameAs m.03x6s0.
- Service_data_unit sameAs Hizmet_veri_birimi.
- Service_data_unit sameAs Q1758093.
- Service_data_unit sameAs Q1758093.
- Service_data_unit sameAs 服务数据单元.
- Service_data_unit wasDerivedFrom Service_data_unit?oldid=637242550.
- Service_data_unit isPrimaryTopicOf Service_data_unit.