{"id":292,"date":"2020-11-29T19:01:25","date_gmt":"2020-11-30T00:01:25","guid":{"rendered":"https:\/\/www.alpharithms.com\/?post_type=term&#038;p=292"},"modified":"2021-07-27T08:08:33","modified_gmt":"2021-07-27T12:08:33","slug":"service-data-unit-sdu","status":"publish","type":"post","link":"https:\/\/www.alpharithms.com\/service-data-unit-sdu-250119\/","title":{"rendered":"Service Data Unit (SDU)"},"content":{"rendered":"<p class=\"ae-first\">In computer networking, particularly protocol layered models like\u00a0<a href=\"https:\/\/www.alpharithms.com\/network-protocol-layers-432211\/\">OSI and\/or TCP\/IP<\/a>, a <strong>Service Data Unit (SDU)<\/strong> is an unencapsulated unit of data received from an upper level.<\/p>\n<p class=\"ae-first\">This unit of data is readable by the receiving layer as a raw segment but not yet ready for transmission through lower network layers.<\/p>\n<p class=\"ae-first\">As an example; the network layer receives an encapsulated SDU from the transport layer directly above. This SDU is actually a\u00a0transport layer PDU\u2014meaning that the transport layer has\u00a0<em>encapsulated<\/em>\u00a0that segment.<\/p>\n<p class=\"ae-first\">When the SDU reaches the network layer below, it hasn\u2019t yet been encapsulated for transmission to the link-layer below. In a sense, this means it is still \u201craw\u201d SDU data from the perspective of the current layer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In computer networking, particularly protocol layered models like\u00a0OSI and\/or TCP\/IP, a Service Data Unit (SDU) is an unencapsulated unit of data received from an upper level. This unit of data is readable by the receiving layer as a raw segment but not yet ready for transmission through lower network layers. As an example; the network [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2472,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[3,260],"tags":[461,82,6,126],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/posts\/292"}],"collection":[{"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/comments?post=292"}],"version-history":[{"count":1,"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/posts\/292\/revisions"}],"predecessor-version":[{"id":293,"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/posts\/292\/revisions\/293"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/media\/2472"}],"wp:attachment":[{"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/media?parent=292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/categories?post=292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpharithms.com\/wp-json\/wp\/v2\/tags?post=292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}