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id="toc-CSMA/CD_med_et_delt_medium_på_Ethernet" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#CSMA/CD_med_et_delt_medium_på_Ethernet"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>CSMA/CD med et delt medium på Ethernet</span> </div> </a> <ul id="toc-CSMA/CD_med_et_delt_medium_på_Ethernet-sublist" class="vector-toc-list"> <li id="toc-Hovedprosedyre" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Hovedprosedyre"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.1</span> <span>Hovedprosedyre</span> </div> </a> <ul id="toc-Hovedprosedyre-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Prosedyre_for_detektert_kollisjon" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Prosedyre_for_detektert_kollisjon"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.2</span> <span>Prosedyre for detektert kollisjon</span> </div> </a> <ul id="toc-Prosedyre_for_detektert_kollisjon-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Datalink-laget" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Datalink-laget"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Datalink-laget</span> </div> </a> <ul id="toc-Datalink-laget-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Se_også" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Se_også"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Se også</span> </div> </a> <ul id="toc-Se_også-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Eksterne_lenker" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Eksterne_lenker"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Eksterne lenker</span> </div> </a> <ul id="toc-Eksterne_lenker-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Innholdsfortegnelse" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innholdsfortegnelsen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul innholdsfortegnelsen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Ethernet</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til en artikkel på et annet språk. Tilgjengelig på 77 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-77" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">77 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Ethernet" title="Ethernet – norsk nynorsk" lang="nn" hreflang="nn" data-title="Ethernet" data-language-autonym="Norsk nynorsk" data-language-local-name="norsk nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Ethernet" title="Ethernet – dansk" lang="da" hreflang="da" data-title="Ethernet" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Ethernet" title="Ethernet – svensk" lang="sv" hreflang="sv" data-title="Ethernet" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/%C3%8D%C3%B0net" title="Íðnet – islandsk" lang="is" hreflang="is" data-title="Íðnet" data-language-autonym="Íslenska" data-language-local-name="islandsk" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Ethernet" title="Ethernet – afrikaans" lang="af" hreflang="af" data-title="Ethernet" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A5%D9%8A%D8%AB%D8%B1%D9%86%D8%AA" title="إيثرنت – arabisk" lang="ar" hreflang="ar" data-title="إيثرنت" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Ethernet" title="Ethernet – asturisk" lang="ast" hreflang="ast" data-title="Ethernet" data-language-autonym="Asturianu" data-language-local-name="asturisk" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Ethernet" title="Ethernet – aserbajdsjansk" lang="az" hreflang="az" data-title="Ethernet" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%87%E0%A6%A5%E0%A6%BE%E0%A6%B0%E0%A6%A8%E0%A7%87%E0%A6%9F" title="ইথারনেট – bengali" lang="bn" hreflang="bn" data-title="ইথারনেট" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/Ethernet" title="Ethernet – belarusisk" lang="be" hreflang="be" data-title="Ethernet" data-language-autonym="Беларуская" data-language-local-name="belarusisk" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%95%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82" title="Етернет – bulgarsk" lang="bg" hreflang="bg" data-title="Етернет" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Ethernet" title="Ethernet – bosnisk" lang="bs" hreflang="bs" data-title="Ethernet" data-language-autonym="Bosanski" data-language-local-name="bosnisk" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Ethernet" title="Ethernet – bretonsk" lang="br" hreflang="br" data-title="Ethernet" data-language-autonym="Brezhoneg" data-language-local-name="bretonsk" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Ethernet" title="Ethernet – katalansk" lang="ca" hreflang="ca" data-title="Ethernet" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Ethernet" title="Ethernet – tsjekkisk" lang="cs" hreflang="cs" data-title="Ethernet" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de badge-Q17437798 badge-goodarticle mw-list-item" title="anbefalt artikkel-merke"><a href="https://de.wikipedia.org/wiki/Ethernet" title="Ethernet – tysk" lang="de" hreflang="de" data-title="Ethernet" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Ethernet" title="Ethernet – estisk" lang="et" hreflang="et" data-title="Ethernet" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/Ethernet" title="Ethernet – gresk" lang="el" hreflang="el" data-title="Ethernet" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Ethernet" title="Ethernet – engelsk" lang="en" hreflang="en" data-title="Ethernet" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Ethernet" title="Ethernet – spansk" lang="es" hreflang="es" data-title="Ethernet" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Eterreto" title="Eterreto – esperanto" lang="eo" hreflang="eo" data-title="Eterreto" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Ethernet" title="Ethernet – baskisk" lang="eu" hreflang="eu" data-title="Ethernet" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A7%D8%AA%D8%B1%D9%86%D8%AA" title="اترنت – persisk" lang="fa" hreflang="fa" data-title="اترنت" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Ethernet" title="Ethernet – fransk" lang="fr" hreflang="fr" data-title="Ethernet" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Ethernet" title="Ethernet – irsk" lang="ga" hreflang="ga" data-title="Ethernet" data-language-autonym="Gaeilge" data-language-local-name="irsk" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gv mw-list-item"><a href="https://gv.wikipedia.org/wiki/Ethernet" title="Ethernet – mansk" lang="gv" hreflang="gv" data-title="Ethernet" data-language-autonym="Gaelg" data-language-local-name="mansk" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Ethernet" title="Ethernet – galisisk" lang="gl" hreflang="gl" data-title="Ethernet" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%87%E0%AA%A5%E0%AA%B0%E0%AA%A8%E0%AB%87%E0%AA%9F" title="ઇથરનેટ – gujarati" lang="gu" hreflang="gu" data-title="ઇથરનેટ" data-language-autonym="ગુજરાતી" data-language-local-name="gujarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9D%B4%EB%8D%94%EB%84%B7" title="이더넷 – koreansk" lang="ko" hreflang="ko" data-title="이더넷" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%88%E0%A4%A5%E0%A4%B0%E0%A4%A8%E0%A5%87%E0%A4%9F" title="ईथरनेट – hindi" lang="hi" hreflang="hi" data-title="ईथरनेट" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Ethernet" title="Ethernet – kroatisk" lang="hr" hreflang="hr" data-title="Ethernet" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Eternet" title="Eternet – indonesisk" lang="id" hreflang="id" data-title="Eternet" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Ethernet" title="Ethernet – italiensk" lang="it" hreflang="it" data-title="Ethernet" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%90%D7%AA%D7%A8%D7%A0%D7%98" title="אתרנט – hebraisk" lang="he" hreflang="he" data-title="אתרנט" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%8E%E0%B2%A4%E0%B2%B0%E0%B3%8D%E2%80%8D%E0%B2%A8%E0%B3%86%E0%B2%9F%E0%B3%8D" title="ಎತರ್‍ನೆಟ್ – kannada" lang="kn" hreflang="kn" data-title="ಎತರ್‍ನೆಟ್" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/Ethernet" title="Ethernet – kasakhisk" lang="kk" hreflang="kk" data-title="Ethernet" data-language-autonym="Қазақша" data-language-local-name="kasakhisk" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Ethernet" title="Ethernet – swahili" lang="sw" hreflang="sw" data-title="Ethernet" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Ethernet" title="Ethernet – kurdisk" lang="ku" hreflang="ku" data-title="Ethernet" data-language-autonym="Kurdî" data-language-local-name="kurdisk" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Ethernet" title="Ethernet – latin" lang="la" hreflang="la" data-title="Ethernet" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Ethernet" title="Ethernet – latvisk" lang="lv" hreflang="lv" data-title="Ethernet" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Ethernet" title="Ethernet – luxemburgsk" lang="lb" hreflang="lb" data-title="Ethernet" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxemburgsk" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Ethernet" title="Ethernet – litauisk" lang="lt" hreflang="lt" data-title="Ethernet" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Ethernet" title="Ethernet – lombardisk" lang="lmo" hreflang="lmo" data-title="Ethernet" data-language-autonym="Lombard" data-language-local-name="lombardisk" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Ethernet" title="Ethernet – ungarsk" lang="hu" hreflang="hu" data-title="Ethernet" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%95%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82" title="Етернет – makedonsk" lang="mk" hreflang="mk" data-title="Етернет" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%88%E0%B4%A4%E0%B5%86%E0%B5%BC%E0%B4%A8%E0%B5%86%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%8D" title="ഈതെർനെറ്റ് – malayalam" lang="ml" hreflang="ml" data-title="ഈതെർനെറ്റ്" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%87%E0%A4%A5%E0%A4%B0%E0%A4%A8%E0%A5%87%E0%A4%9F" title="इथरनेट – marathi" lang="mr" hreflang="mr" data-title="इथरनेट" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Ethernet" title="Ethernet – malayisk" lang="ms" hreflang="ms" data-title="Ethernet" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Ethernet" title="Ethernet – nederlandsk" lang="nl" hreflang="nl" data-title="Ethernet" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%A4%E3%83%BC%E3%82%B5%E3%83%8D%E3%83%83%E3%83%88" title="イーサネット – japansk" lang="ja" hreflang="ja" data-title="イーサネット" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%88%E0%A8%A5%E0%A8%B0%E0%A8%A8%E0%A9%88%E0%A9%B1%E0%A8%9F" title="ਈਥਰਨੈੱਟ – panjabi" lang="pa" hreflang="pa" data-title="ਈਥਰਨੈੱਟ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%A7%DB%90%D8%AA%D8%B1%D9%86%D9%BC" title="اېترنټ – pashto" lang="ps" hreflang="ps" data-title="اېترنټ" data-language-autonym="پښتو" data-language-local-name="pashto" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Ethernet" title="Ethernet – polsk" lang="pl" hreflang="pl" data-title="Ethernet" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Ethernet" title="Ethernet – portugisisk" lang="pt" hreflang="pt" data-title="Ethernet" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Ethernet" title="Ethernet – rumensk" lang="ro" hreflang="ro" data-title="Ethernet" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Ethernet" title="Ethernet – russisk" lang="ru" hreflang="ru" data-title="Ethernet" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Etherneti" title="Etherneti – albansk" lang="sq" hreflang="sq" data-title="Etherneti" data-language-autonym="Shqip" data-language-local-name="albansk" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Ethernet" title="Ethernet – enkel engelsk" lang="en-simple" hreflang="en-simple" data-title="Ethernet" data-language-autonym="Simple English" data-language-local-name="enkel engelsk" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Ethernet" title="Ethernet – slovakisk" lang="sk" hreflang="sk" data-title="Ethernet" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Ethernet" title="Ethernet – slovensk" lang="sl" hreflang="sl" data-title="Ethernet" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%A6%DB%8C%D8%AA%DB%95%D8%B1%D9%86%DB%8E%D8%AA" title="ئیتەرنێت – sentralkurdisk" lang="ckb" hreflang="ckb" data-title="ئیتەرنێت" data-language-autonym="کوردی" data-language-local-name="sentralkurdisk" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%95%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82" title="Етернет – serbisk" lang="sr" hreflang="sr" data-title="Етернет" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Ethernet" title="Ethernet – serbokroatisk" lang="sh" hreflang="sh" data-title="Ethernet" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Ethernet" title="Ethernet – finsk" lang="fi" hreflang="fi" data-title="Ethernet" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Ethernet" title="Ethernet – tagalog" lang="tl" hreflang="tl" data-title="Ethernet" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%88%E0%AE%A4%E0%AE%B0%E0%AF%8D%E0%AE%A8%E0%AF%86%E0%AE%9F%E0%AF%8D" title="ஈதர்நெட் – tamil" lang="ta" hreflang="ta" data-title="ஈதர்நெட்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%88%E0%B0%A5%E0%B0%B0%E0%B1%8D%E0%B0%A8%E0%B1%86%E0%B0%9F%E0%B1%8D" title="ఈథర్నెట్ – telugu" lang="te" hreflang="te" data-title="ఈథర్నెట్" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AD%E0%B8%B5%E0%B9%80%E0%B8%97%E0%B8%AD%E0%B8%A3%E0%B9%8C%E0%B9%80%E0%B8%99%E0%B9%87%E0%B8%95" title="อีเทอร์เน็ต – thai" lang="th" hreflang="th" data-title="อีเทอร์เน็ต" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Ethernet" title="Ethernet – tyrkisk" lang="tr" hreflang="tr" data-title="Ethernet" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Ethernet" title="Ethernet – ukrainsk" lang="uk" hreflang="uk" data-title="Ethernet" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A7%DB%8C%D8%AA%DA%BE%D8%B1%D9%86%DB%8C%D9%B9" title="ایتھرنیٹ – urdu" lang="ur" hreflang="ur" data-title="ایتھرنیٹ" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Ethernet" title="Ethernet – vietnamesisk" lang="vi" hreflang="vi" data-title="Ethernet" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/Ethernet" title="Ethernet – sørestisk" lang="vro" hreflang="vro" data-title="Ethernet" data-language-autonym="Võro" data-language-local-name="sørestisk" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E4%BB%A5%E5%A4%AA%E7%BD%91" title="以太网 – wu" lang="wuu" hreflang="wuu" data-title="以太网" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/Ethernet" title="Ethernet – jiddisk" lang="yi" hreflang="yi" data-title="Ethernet" data-language-autonym="ייִדיש" data-language-local-name="jiddisk" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E4%B9%99%E5%A4%AA%E7%B6%B2" title="乙太網 – kantonesisk" lang="yue" hreflang="yue" data-title="乙太網" data-language-autonym="粵語" data-language-local-name="kantonesisk" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E4%BB%A5%E5%A4%AA%E7%BD%91" title="以太网 – kinesisk" lang="zh" hreflang="zh" data-title="以太网" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q79984#sitelinks-wikipedia" title="Rediger lenker til artikkelen på andre språk" class="wbc-editpage">Rediger lenker</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Ethernet" title="Vis innholdssiden [c]" accesskey="c"><span>Artikkel</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Diskusjon:Ethernet" rel="discussion" title="Diskusjon om innholdssiden [t]" accesskey="t"><span>Diskusjon</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Bytt språkvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">norsk bokmål</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visninger"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Ethernet"><span>Les</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Ethernet&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Ethernet&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Ethernet&action=history" title="Tidligere sideversjoner av denne siden [h]" accesskey="h"><span>Vis historikk</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Verktøy" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Verktøy</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Verktøy</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">skjul</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Flere alternativer" > <div class="vector-menu-heading"> Handlinger </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Ethernet"><span>Les</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Ethernet&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Ethernet&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Ethernet&action=history"><span>Vis historikk</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generelt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Spesial:Lenker_hit/Ethernet" title="Liste over alle wikisider som lenker hit [j]" accesskey="j"><span>Lenker hit</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Spesial:Relaterte_endringer/Ethernet" rel="nofollow" title="Siste endringer i sider som blir lenket fra denne siden [k]" accesskey="k"><span>Relaterte endringer</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=no" title="Last opp filer [u]" accesskey="u"><span>Last opp fil</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Ethernet&oldid=24202732" title="Permanent lenke til denne versjonen av siden"><span>Permanent lenke</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Ethernet&action=info" title="Mer informasjon om denne siden"><span>Sideinformasjon</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Spesial:Siteringshjelp&page=Ethernet&id=24202732&wpFormIdentifier=titleform" title="Informasjon om hvordan denne siden kan siteres"><span>Siter denne siden</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Spesial:UrlShortener&url=https%3A%2F%2Fno.wikipedia.org%2Fwiki%2FEthernet"><span>Hent forkortet URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Spesial:QrCode&url=https%3A%2F%2Fno.wikipedia.org%2Fwiki%2FEthernet"><span>Last ned QR-kode</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Skriv ut / eksporter </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Spesial:DownloadAsPdf&page=Ethernet&action=show-download-screen"><span>Last ned som PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Ethernet&printable=yes" title="Utskriftsvennlig versjon av denne siden [p]" accesskey="p"><span>Utskriftsvennlig versjon</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> På andre prosjekter </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Ethernet" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q79984" title="Lenke til koblet dataregisterelement [g]" accesskey="g"><span>Wikidata-element</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utseende"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">skjul</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Fra Wikipedia, den frie encyklopedi</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nb" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r24553676">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 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.mbox-text-span{margin-left:23px!important}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}</style><table class="plainlinks metadata ambox ambox-move" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/Fil:Mergefrom.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/50px-Mergefrom.svg.png" decoding="async" width="50" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/75px-Mergefrom.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/100px-Mergefrom.svg.png 2x" data-file-width="50" data-file-height="20" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span"><b>Fletting:</b> Det er foreslått at <i><a href="/wiki/Fast_Ethernet" title="Fast Ethernet">Fast Ethernet</a></i> blir flettet inn i denne artikkelen eller seksjonen. (<a href="/wiki/Diskusjon:Ethernet" title="Diskusjon:Ethernet">Diskusjon</a>).</div></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r24553676" /><table class="plainlinks metadata ambox ambox-move" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/Fil:Mergefrom.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/50px-Mergefrom.svg.png" decoding="async" width="50" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/75px-Mergefrom.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/100px-Mergefrom.svg.png 2x" data-file-width="50" data-file-height="20" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span"><b>Fletting:</b> Det er foreslått at <i><a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">Gigabit Ethernet</a></i> blir flettet inn i denne artikkelen eller seksjonen. (<a href="/wiki/Diskusjon:Ethernet" title="Diskusjon:Ethernet">Diskusjon</a>).</div></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r24553676" /><table class="plainlinks metadata ambox ambox-move" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/Fil:Mergefrom.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/50px-Mergefrom.svg.png" decoding="async" width="50" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/75px-Mergefrom.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Mergefrom.svg/100px-Mergefrom.svg.png 2x" data-file-width="50" data-file-height="20" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span"><b>Fletting:</b> Det er foreslått at <i><a href="/wiki/10_Gigabit_Ethernet" title="10 Gigabit Ethernet">10 Gigabit Ethernet</a></i> blir flettet inn i denne artikkelen eller seksjonen. (<a href="/wiki/Diskusjon:Ethernet" title="Diskusjon:Ethernet">Diskusjon</a>).</div></td></tr></tbody></table> <p><b>Ethernet</b> er den vanligste teknologien brukt i lokalnett (<a href="/wiki/LAN" class="mw-redirect" title="LAN">LAN</a>) og er spesifisert i standarden <a href="/wiki/IEEE_802.3" class="mw-redirect" title="IEEE 802.3">IEEE 802.3</a>. Ethernet ble opprinnelig utviklet av <a href="/wiki/Xerox" title="Xerox">Xerox</a> og videre av Xerox, <a href="/wiki/Digital_Equipment_Corporation" title="Digital Equipment Corporation">DEC</a> og <a href="/wiki/Intel" title="Intel">Intel</a>. Nettverk som bruker ethernettekonologi kan bestå både av <a href="/wiki/Koaksialkabel" title="Koaksialkabel">koaksialkabler</a>, <a href="/wiki/Tvunnet_parkabel" title="Tvunnet parkabel">tvunnede parkabler</a>, <a href="/wiki/Fiberoptisk_kabel" class="mw-redirect" title="Fiberoptisk kabel">fiberoptiske kabler</a>, eller være trådløse, såkalte <a href="/wiki/WLAN" class="mw-redirect" title="WLAN">WLAN</a>. Teknologien tillater typisk dataoverføring i hastigheter på 10 <a href="/wiki/Mbps" class="mw-redirect" title="Mbps">Mbps</a>. </p><p><i>Fast Ethernet</i> er en videreutvikling som tillater overføringshastigheter på 100 <a href="/wiki/Mbps" class="mw-redirect" title="Mbps">Mbps</a>. Dette er den mest benyttede teknologien ut til arbeidsstasjoner i dag. Senere er også <a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">Gigabit Ethernet</a> og <i>10-Gigabit Ethernet</i> kommet til. De to sistnevnte ble tidligere vanligvis brukt på stamnett, men har i nyere tid i stadig økende grad også blitt brukt direkte ut til arbeidsstasjoner. </p><p>Ethernet har navnet sitt etter <a href="/wiki/Eter_(klassisk_element)" title="Eter (klassisk element)">eteren</a> (<i>ether</i> på <a href="/wiki/Engelsk" title="Engelsk">engelsk</a>), den passive substansen man tidligere trodde fylte hele verdensrommet og tillot lys å forflytte seg. Navnet henspiller på kabling som et passivt medium som tillater overføring av data utover hele <a href="/wiki/Datanettverk" class="mw-redirect" title="Datanettverk">nettverket</a>. </p><p>Det er per august 2010 en kraftig utvikling internasjonalt på lag 2 baserte nett, såkalt <a href="/wiki/Carrier_Ethernet" title="Carrier Ethernet">Carrier Ethernet</a>. Carrier Ethernet er nå blitt den ledende globale standarden for lukkede nett, der <a href="/w/index.php?title=Metro_Ethernet_Forum&action=edit&redlink=1" class="new" title="Metro Ethernet Forum (ikke skrevet ennå)">Metro Ethernet Forum</a> (MEF) har en sentral rolle. MEF består av verdens største nettoperatører og utstyrprodusenter, og står bak standarder og sertifiseringer for Ethernet-tjenester. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Generell_beskrivelse">Generell beskrivelse</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ethernet&veaction=edit&section=1" title="Rediger avsnitt: Generell beskrivelse" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ethernet&action=edit&section=1" title="Rediger kildekoden til seksjonen Generell beskrivelse"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fil:Network_card.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Network_card.jpg/250px-Network_card.jpg" decoding="async" width="250" height="185" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Network_card.jpg/375px-Network_card.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Network_card.jpg/500px-Network_card.jpg 2x" data-file-width="1444" data-file-height="1071" /></a><figcaption>Et 1990-talls Ethernet-nettverkskort. Dette kortet støtter både koaks (10BASE2) gjennom en (<a href="/w/index.php?title=BNC&action=edit&redlink=1" class="new" title="BNC (ikke skrevet ennå)">BNC</a>-kontakt (til venstre) og tvunnet par (10BASE-T) gjennom en <a href="/wiki/RJ-45" title="RJ-45">RJ-45</a>-kontakt (til høyre).</figcaption></figure><p> Ethernet ble opprinnelig laget for datamaskiner som skulle dele en koaksialkabel som kommunikasjonsmedium. Dette har noen likheter med radiosystemer der flere radioenheter deler det samme frekvensbåndet, men det er noen fundamentale forskjeller. Det er mye enklere å detektere kollisjoner ved kabelkringkasting enn ved radiokringkasting. Den delte kabelen tilbød en form for to-veis kommunikasjon som kunne gi assosiasjoner til det noe uvitenskapelige begrepet "<a href="/w/index.php?title=Etheren&action=edit&redlink=1" class="new" title="Etheren (ikke skrevet ennå)">etheren</a>"; derav navnet «Ethernet». </p><p>Fra dette tidlige og enkle konseptet utviklet Ethernet seg til en kompleks teknologi for nettverk. Koaksialkabelen ble avløst av punkt-til-punkt forbindelser som ble samlet ved <a href="/wiki/Hub_(datanettverk)" title="Hub (datanettverk)">hub-er</a> og/eller <a href="/wiki/Switch" class="mw-redirect" title="Switch">svitsjer</a>. Dette for å redusere installasjonskostnader og øke påliteligheten. Tildels fordi punkt-til-punkt forbindelser er enklere å konfigurere og feilsøke. StarLAN var det første steget fra koaksialkabelen til ett hub-styrt, tvunnet-par (TP) nettverk. TP-ledninger reduserte installasjonskostnadene betydelig i forhold til konkurrerende teknologier og eldre Ethernet teknologier. Tildels fordi kabelen som strekkes for telefoner også kan brukes for å koble en datamaskin til nettverket med Ethernet. Telefonledninger inneholder vanligvis to par ledninger og bare ett er i bruk. Derfor er infrastrukturen ofte på plass da de fleste har telefon. Dette var et viktig poeng tidligere. I dag ønsker de fleste bedre hastigheter og strekker egne kabler spesielt for Ethernet. </p><p>Over det fysiske laget kommuniserer Ethernet-enheter ved å sende hverandre datapakker. En pakke er en blokk data som sendes og leveres individuelt. Som med andre IEEE 802 LAN-typer har hver Ethernet-enhet en 48-biters <a href="/wiki/MAC-adresse" title="MAC-adresse">MAC-adresse</a>. Denne brukes for å spesifisere mål og kilde for hver enkelte pakke. <a href="/wiki/Nettverkskort" title="Nettverkskort">Nettverkskort</a> (Ethernet-typen) aksepterer normalt ikke pakker adressert til andre Ethernet-enheter enn dem selv. Nettverkskort kommer programmert med en globalt unik adresse, men dette kan overstyres. Enten for å forhindre at adressen forandres når nettverkskortet byttes eller for å bruke lokalt administrerte adresser. </p><p>Til tross for de betydelige forandringene Ethernet har gjennomgått, fra å bruke en tykk koaksialkabel (10 Mbits/s) til punkt-til-punkt forbindelser (1 Gbit/s og oppover) så er alle Ethernet-typer kompatible med hverandre (om en ser bort fra noen tidlige prototyper). Alle deler de samme rammeformatene (og derav samme grensesnitt mot høyere lag i OSI-modellen). </p><p>På grunn av Ethernets utbredelse, den synkende prisen på maskinvare og den lille plassen TP-kabler opptar så integreres gjerne ethernetkompatible nettverkskort direkte inn i hovedkortet på PC-er, noe som gjør det unødvendig å installere separate kort for tilkobling til nettverk. </p> <div class="mw-heading mw-heading2"><h2 id="Hvordan_Ethernet_takler_flere_klienter">Hvordan Ethernet takler flere klienter</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ethernet&veaction=edit&section=2" title="Rediger avsnitt: Hvordan Ethernet takler flere klienter" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ethernet&action=edit&section=2" title="Rediger kildekoden til seksjonen Hvordan Ethernet takler flere klienter"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="CSMA/CD_med_et_delt_medium_på_Ethernet"><span id="CSMA.2FCD_med_et_delt_medium_p.C3.A5_Ethernet"></span>CSMA/CD med et delt medium på Ethernet</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ethernet&veaction=edit&section=3" title="Rediger avsnitt: CSMA/CD med et delt medium på Ethernet" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ethernet&action=edit&section=3" title="Rediger kildekoden til seksjonen CSMA/CD med et delt medium på Ethernet"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Den første versjonen av Ethernet brukte en koaksialkabel (delt overføringsmedium) som snodde seg igjennom en bygning eller ett campus og var innom hver tilkoblede maskin. Et system kjent som CSMA/CD (Carrier Sense Multiple Access with Collision Detection) styrte måten datamaskinene delte kabelen. Dette systemet var enklere enn konkurrentene token ring og token bus. Når en datamaskin ønsket å sende informasjon brukte den følgende algoritme: </p> <div class="mw-heading mw-heading4"><h4 id="Hovedprosedyre">Hovedprosedyre</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ethernet&veaction=edit&section=4" title="Rediger avsnitt: Hovedprosedyre" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ethernet&action=edit&section=4" title="Rediger kildekoden til seksjonen Hovedprosedyre"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ol><li>Rammen er klar for transmisjon.</li> <li>Er mediumet ledig? Hvis ikke vent på at den blir klar og vent den spesifiserte IFG (Interframe Gap) tiden. (IFG er på 9.6 <b>µs</b> for 10 Mbit/s Ethernet). IFG er en pause som lar Ethernet enheter klargjøre seg for den neste ramma.</li> <li>Begynn å overføre data.</li> <li>Oppstod det en kollisjon? Hvis så, gå til prosedyren for detektert kollisjon.</li> <li>Nullstill retransmisjonstellerne og avslutt rammeoverføringen.</li></ol> <div class="mw-heading mw-heading4"><h4 id="Prosedyre_for_detektert_kollisjon">Prosedyre for detektert kollisjon</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ethernet&veaction=edit&section=5" title="Rediger avsnitt: Prosedyre for detektert kollisjon" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ethernet&action=edit&section=5" title="Rediger kildekoden til seksjonen Prosedyre for detektert kollisjon"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ol><li>Fortsett transmisjonen frem til minimum pakketid er oppnådd for å sikre at alle mottakere også detekterer kollisjonen.</li> <li>Inkrementer retransmisjonstelleren.</li> <li>Er det maksimale antall transmisjonsforsøk oppnådd? Hvis så, avbryt transmisjon.</li> <li>Gå til begynnelsen hovedprosedyren.</li></ol> <p>Dette kan sammenliknes med hva som skjer ved et middagsselskap der alle gjestene prøver å snakke til hverandre. Før en gjest begynner å snakke venter vedkommende høflig på at den nåværende taleren skal avslutte. Hvis to gjester begynner samtidig stopper begge og venter en tilfeldig tid (i Ethernet måles tid gjerne i mikrosekunder). Ved å velge en tilfeldig tid er det lite sannsynlig at begge gjestene igjen begynner samtidig og en til kollisjon unngås. </p> <div class="mw-heading mw-heading2"><h2 id="Datalink-laget">Datalink-laget</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ethernet&veaction=edit&section=6" title="Rediger avsnitt: Datalink-laget" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ethernet&action=edit&section=6" title="Rediger kildekoden til seksjonen Datalink-laget"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>En datapakke på en ledning kalles en ramme. Hvis en ramme avleses på en fysisk ledning vil den bestå av en «preamble» (blokkstart) og en «start frame delimiter» (rammeavgrenser) i tillegg til de andre datene. Disse to datene kreves av den fysiske maskinvaren, men vil ikke vises i en pakkesniffer fordi disse bitene fjernes av Ethernet-kortet før ramma sendes til operativssystemet på verten. I kontrast er det ofte Ethernet-<a href="/wiki/Driver" title="Driver">driveren</a> som fjerner CRC32 feilsjekken fra pakkene som brukeren ser. </p><p>Tabellen nedenfor viser hele Ethernet-ramma slik den sendes. Merk at bitmønstrene i «preamble» og «start frame delimiter» skrives som bitstrenger. Den første bit-en som overføres er den til venstre. Dette er ulikt byte verdier som i Ethernet sendes med minst signifikant bit (LSB) først. Denne notasjonen tilsvarer den brukt i IEEE 802.3 standarden. </p> <table class="wikitable"> <tbody><tr> <th>Preamble</th> <th>Start-of-Frame-Delimiter</th> <th><a href="/wiki/MAC-adresse" title="MAC-adresse">MAC</a> destination</th> <th>MAC source</th> <th><a href="/w/index.php?title=Ethertype&action=edit&redlink=1" class="new" title="Ethertype (ikke skrevet ennå)">Ethertype</a>/Lengde</th> <th>Payload (nyttelast)</th> <th>Integritetssjekk (CRC32)</th> <th><a href="/w/index.php?title=Interframe_gap&action=edit&redlink=1" class="new" title="Interframe gap (ikke skrevet ennå)">Interframe gap</a> </th></tr> <tr> <td>7 <a href="/wiki/Oktett_(data)" title="Oktett (data)">oktetter</a> på 10101010</td> <td>1 oktett på 10101011</td> <td>6 oktetter</td> <td>6 oktetter</td> <td>2 oktetter</td> <td>46-1500 oktetter</td> <td>4 oktetter</td> <td>960 ns Fast Ethernet(100M)) </td></tr> <tr> <td colspan="2"></td> <td colspan="5" align="center">64-1518 oktetter</td> <td>24 sykler (100M) </td></tr> <tr> <td colspan="7" align="center">72-1526 oktetter</td> <td> </td></tr></tbody></table> <p>Etter at en ramme har blitt sendt må transmitterne vente en spesifisert tid før de kan sende neste ramme. Dette kalles IFG (Interframe Gap). Tiden 10-, 100- og 1000 Mbit/s må vente respektivt; 9600 <b>ns</b>, 960 <b>ns</b> og 96 <b>ns</b>. </p> <div class="mw-heading mw-heading2"><h2 id="Se_også"><span id="Se_ogs.C3.A5"></span>Se også</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ethernet&veaction=edit&section=7" title="Rediger avsnitt: Se også" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ethernet&action=edit&section=7" title="Rediger kildekoden til seksjonen Se også"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">Gigabit Ethernet</a></li> <li><a href="/wiki/GBIC" title="GBIC">GBIC</a></li> <li><a href="/w/index.php?title=Punkt-til-punkt_forbindelse&action=edit&redlink=1" class="new" title="Punkt-til-punkt forbindelse (ikke skrevet ennå)">Punkt-til-punkt forbindelse</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Eksterne_lenker">Eksterne lenker</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ethernet&veaction=edit&section=8" title="Rediger avsnitt: Eksterne lenker" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ethernet&action=edit&section=8" title="Rediger kildekoden til seksjonen Eksterne lenker"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20080130065338/http://www.poppe.nu/Nettverk2/Nettverk2.html">poppe.nu</a> Kopendium til bruk ved Oslo By Steinerskole, IKT driftsfag. 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