{"id":8334,"date":"2022-02-27T21:36:43","date_gmt":"2022-02-27T20:36:43","guid":{"rendered":"https:\/\/dhosting.pl\/pomoc\/?post_type=manual_kb&#038;p=8334"},"modified":"2023-05-18T16:05:30","modified_gmt":"2023-05-18T14:05:30","slug":"protokoly-udp","status":"publish","type":"manual_kb","link":"https:\/\/dhosting.pl\/pomoc\/baza-wiedzy\/protokoly-udp\/","title":{"rendered":"Protoko\u0142y &#8211; UDP"},"content":{"rendered":"<p><strong>UDP<\/strong> (<strong>User Datagram Protocol<\/strong>) to jeden z protoko\u0142\u00f3w internetowych, kt\u00f3ry jest u\u017cywany w warstwie transportowej modelu OSI. Nie gwarantuje on, \u017ce wysy\u0142any datagram zostanie dostarczony do odbiorcy. Jest to protok\u00f3\u0142 bezpo\u0142\u0105czeniowy, co powoduje szybsz\u0105 transmisj\u0119, ale r\u00f3wnie\u017c brak mechanizm\u00f3w przep\u0142ywu i retransmisji, co mo\u017ce powodowa\u0107 duplikowanie przesy\u0142anych pakiet\u00f3w. W przeciwie\u0144stwie do <strong>TCP<\/strong>, mo\u017cliwe jest jednoczesne przesy\u0142anie pakiet\u00f3w pod kilka adres\u00f3w.<\/p>\n<p><strong>Port nadawcy<\/strong> &#8211; s\u0142u\u017cy do identyfikacji portu, z kt\u00f3rego komunikat zosta\u0142 wys\u0142any. To pole jest opcjonalne i przyjmuje warto\u015b\u0107 zero, je\u015bli nie jest u\u017cywane.<\/p>\n<p><strong>Port odbiorcy<\/strong> &#8211; identyfikuje port odbiorcy.<\/p>\n<p><strong>D\u0142ugo\u015b\u0107<\/strong> &#8211; 16-bitowe pole s\u0142u\u017c\u0105ce do okre\u015blania d\u0142ugo\u015bci pakietu w bajtach. Minimalna d\u0142ugo\u015b\u0107 to 8 bajt\u00f3w.<\/p>\n<p><strong>Suma kontrolna<\/strong> &#8211; 16-bitowe pole s\u0142u\u017c\u0105ce do sprawdzania poprawno\u015bci nag\u0142\u00f3wka i danych. Tylko w ten spos\u00f3b mo\u017cna si\u0119 upewni\u0107, \u017ce dane nie s\u0105 uszkodzone.<\/p>\n","protected":false},"author":6,"featured_media":10957,"parent":0,"menu_order":0,"template":"","format":"standard","manualknowledgebasecat":[95,2143],"manual_kb_tag":[655,3517,2144,2154,2163,2162,3516],"class_list":["post-8334","manual_kb","type-manual_kb","status-publish","format-standard","has-post-thumbnail","hentry","manualknowledgebasecat-hosting","manualknowledgebasecat-inne-hosting","manual_kb_tag-hosting","manual_kb_tag-polski-hosting","manual_kb_tag-protokol","manual_kb_tag-protokoly","manual_kb_tag-udp","manual_kb_tag-user-datagram-protocol","manual_kb_tag-web-hosting"],"_links":{"self":[{"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/manual_kb\/8334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/manual_kb"}],"about":[{"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/types\/manual_kb"}],"author":[{"embeddable":true,"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/users\/6"}],"version-history":[{"count":0,"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/manual_kb\/8334\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/media\/10957"}],"wp:attachment":[{"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/media?parent=8334"}],"wp:term":[{"taxonomy":"manualknowledgebasecat","embeddable":true,"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/manualknowledgebasecat?post=8334"},{"taxonomy":"manual_kb_tag","embeddable":true,"href":"https:\/\/dhosting.pl\/pomoc\/wp-json\/wp\/v2\/manual_kb_tag?post=8334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}