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<span>Architecture</span> </div> </a> <ul id="toc-Architecture-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Features" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Features"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Features</span> </div> </a> <button aria-controls="toc-Features-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Features subsection</span> </button> <ul id="toc-Features-sublist" class="vector-toc-list"> <li id="toc-Junos_SDK" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Junos_SDK"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Junos SDK</span> </div> </a> <ul id="toc-Junos_SDK-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Command-line_interface" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Command-line_interface"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Command-line interface</span> </div> </a> <ul id="toc-Command-line_interface-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-FIPS_140-2_security_compliance" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#FIPS_140-2_security_compliance"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>FIPS 140-2 security compliance</span> </div> </a> <ul id="toc-FIPS_140-2_security_compliance-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Juniper_Extension_Toolkit_(JET)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Juniper_Extension_Toolkit_(JET)"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Juniper Extension Toolkit (JET)</span> </div> </a> <ul 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id="toc-Routing_protocols_and_applications-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Secure_boot" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Secure_boot"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.8</span> <span>Secure boot</span> </div> </a> <ul id="toc-Secure_boot-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>References</span> </div> </a> <ul id="toc-References-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="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" 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title="JunOS – Azerbaijani" lang="az" hreflang="az" data-title="JunOS" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Junos" title="Junos – Czech" lang="cs" hreflang="cs" data-title="Junos" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Junos_OS" title="Junos OS – Spanish" lang="es" hreflang="es" data-title="Junos OS" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/JUNOS" title="JUNOS – Japanese" lang="ja" hreflang="ja" data-title="JUNOS" 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dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Real-time operating system (RTOS) software</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">This article is about Junos OS. For the Austrian liberal youth organization, see <a href="/wiki/JUNOS_%E2%80%93_Young_liberal_NEOS" title="JUNOS – Young liberal NEOS">JUNOS – Young liberal NEOS</a>. For the Canadian music awards, see <a href="/wiki/Juno_Award" class="mw-redirect" title="Juno Award">Juno Award</a>. For pluralized Juno, see <a href="/wiki/Juno_(disambiguation)" class="mw-redirect mw-disambig" title="Juno (disambiguation)">Juno (disambiguation)</a>.</div> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Operating system</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">Junos OS</caption><tbody><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:Junos_OS_logo.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/b/b2/Junos_OS_logo.png/250px-Junos_OS_logo.png" decoding="async" width="250" height="271" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/b/b2/Junos_OS_logo.png 1.5x" data-file-width="286" data-file-height="310" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Developer</a></th><td class="infobox-data"><a href="/wiki/Juniper_Networks" title="Juniper Networks">Juniper Networks</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">OS family</th><td class="infobox-data"><a href="/wiki/Unix-like" title="Unix-like">Unix-like</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Working state</th><td class="infobox-data">Current</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Source model</th><td class="infobox-data"><a href="/wiki/Closed_source" class="mw-redirect" title="Closed source">Closed source</a> and <a href="/wiki/Open-source_software" title="Open-source software">open source</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">July 7, 1998<span class="noprint">; 26 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1998-07-07</span>)</span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Latest release</a></th><td class="infobox-data">24.2R1<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> / July 19, 2024<span class="noprint">; 4 months ago</span><span style="display:none"> (<span class="bday dtstart published updated">2024-07-19</span>)</span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Natural_language" title="Natural language">Available in</a></th><td class="infobox-data"><a href="/wiki/English_language" title="English language">English</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/User_space_and_kernel_space" title="User space and kernel space">Userland</a></th><td class="infobox-data"><a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> or <a href="/wiki/Linux" title="Linux">Linux</a><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/User_interface" title="User interface">Default<br />user interface</a></th><td class="infobox-data"><a href="/wiki/Command-line_interface" title="Command-line interface">Command-line interface</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a>,<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> <a href="/wiki/FreeBSD_License" class="mw-redirect" title="FreeBSD License">FreeBSD License</a>, <a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPL License</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Official website</th><td class="infobox-data"><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="https://juniper.net/us/en/products-services/nos/junos/">juniper.net/us/en/products-services/nos/junos/</a></span></span></td></tr></tbody></table> <p><b>Junos OS</b> (also known as <b>Juniper Junos</b>, <b>Junos</b> and <b>JUNOS</b>) is a <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a>-based <a href="/wiki/Network_operating_system" title="Network operating system">network operating system</a> used in <a href="/wiki/Juniper_Networks" title="Juniper Networks">Juniper Networks</a> routing, switching and security devices.<sup id="cite_ref-juniper.net_Junos_7-0" class="reference"><a href="#cite_note-juniper.net_Junos-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Versions">Versions</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=1" title="Edit section: Versions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Junos OS was first made available on 7 July 1998. As of 2008, feature updates have been released quarterly.<sup id="cite_ref-open-not-open-source_8-0" class="reference"><a href="#cite_note-open-not-open-source-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> As of March 2024<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Junos_OS&action=edit">[update]</a></sup>, the latest version is Junos OS 23.2R1, released on June 23, 2023. </p> <div class="mw-heading mw-heading2"><h2 id="Architecture">Architecture</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=2" title="Edit section: Architecture"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Junos operating system is primarily based on <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a> on <a href="/wiki/Bare_metal" class="mw-redirect" title="Bare metal">bare metal</a> and later also with <a href="/wiki/Linux" title="Linux">Linux</a> <a href="/wiki/Kernel_(operating_system)" title="Kernel (operating system)">kernel</a>. <sup id="cite_ref-open-not-open-source_8-1" class="reference"><a href="#cite_note-open-not-open-source-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Because FreeBSD is a <a href="/wiki/Unix" title="Unix">Unix</a> implementation, users can access a Unix shell and execute normal Unix commands. Junos runs on most or all Juniper hardware systems.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> After acquisition of NetScreen by Juniper Networks, Juniper integrated ScreenOS security functions into its own Junos network operating system.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>Junos OS has several architecture variations: </p> <ul><li>Junos OS FreeBSD 6 on bare metal. This is Junos OS based on a FreeBSD 6 kernel.</li></ul> <ul><li>Junos OS FreeBSD 10 or later on bare metal. This is Junos OS based on an upgraded FreeBSD kernel. Starting with Junos OS Release 15.1, certain hardware platforms run Junos OS with upgraded FreeBSD. Starting in Junos OS Release 16.1, Junos OS with upgraded FreeBSD can run as a guest virtual machine (VM) on a Linux VM host.</li></ul> <ul><li>Junos OS Evolved runs natively on Linux kernel, providing direct access to all the Linux utilities and operations. With Linux integration and boot up times significantly shortened.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Features">Features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=3" title="Edit section: Features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.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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.ambox{display:none!important}}</style><table class="box-Promotional plainlinks metadata ambox ambox-content ambox-Advert" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>contains <a href="/wiki/Wikipedia:What_Wikipedia_is_not#Wikipedia_is_not_a_soapbox_or_means_of_promotion" title="Wikipedia:What Wikipedia is not">promotional content</a></b>.<span class="hide-when-compact"> Please help <a class="external 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role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>relies excessively on <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">references</a> to <a href="/wiki/Wikipedia:No_original_research#Primary,_secondary_and_tertiary_sources" title="Wikipedia:No original research">primary sources</a></b>.<span class="hide-when-compact"> Please improve this article by adding <a href="/wiki/Wikipedia:No_original_research#Primary,_secondary_and_tertiary_sources" title="Wikipedia:No original research">secondary or tertiary sources</a>. <br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Junos+OS%22">"Junos OS"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Junos+OS%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Junos+OS%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Junos+OS%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Junos+OS%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Junos+OS%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">September 2022</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Junos_SDK">Junos SDK</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=4" title="Edit section: Junos SDK"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Junos's ecosystem includes a <a href="/wiki/Junos#Junos_SDK" class="mw-redirect" title="Junos">Software Development Kit (SDK)</a>.<sup id="cite_ref-juniper.net_Junos_7-1" class="reference"><a href="#cite_note-juniper.net_Junos-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-eswp-junos-open_11-0" class="reference"><a href="#cite_note-eswp-junos-open-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> Juniper Developer Network (JDN)<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> provides the Junos SDK<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> to the 3rd-party developers who want to develop applications for Junos-powered devices such as Juniper Networks routers, switches, and service gateway systems.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> It provides a set of tools and <a href="/wiki/Application_programming_interface" class="mw-redirect" title="Application programming interface">application programming interfaces</a> (APIs), including interfaces to Junos <a href="/wiki/Routing" title="Routing">routing</a>, firewall filter, UI and traffic services functions. Additionally, Junos SDK is used to develop other Juniper's products such as <a href="/wiki/OpenFlow" title="OpenFlow">OpenFlow</a> for Junos, and other traffic services. </p> <div class="mw-heading mw-heading3"><h3 id="Command-line_interface">Command-line interface</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=5" title="Edit section: Command-line interface"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Junos OS <a href="/wiki/Command-line_interface" title="Command-line interface">command-line interface</a> (CLI) is a text-based command interface for configuring, troubleshooting, and monitoring the Juniper device and network traffic associated with it. It supports two types of command modes. </p> <ul><li>Operational Mode – Monitors hardware status and displays information about network data that passes through or into the hardware.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup></li> <li>Configuration Mode – Configures the Juniper router, switch, or security device, by adding, deleting, or modifying statements in the configuration hierarchy.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading3"><h3 id="FIPS_140-2_security_compliance">FIPS 140-2 security compliance</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=6" title="Edit section: FIPS 140-2 security compliance"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Junos-FIPS 140-2 Security Compliance<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> is a variation of Junos OS, providing users with software tools to configure a network of Juniper Networks devices in a <a href="/wiki/Federal_Information_Processing_Standards" title="Federal Information Processing Standards">Federal Information Processing Standards</a> (FIPS) environment. </p> <div class="mw-heading mw-heading3"><h3 id="Juniper_Extension_Toolkit_(JET)"><span id="Juniper_Extension_Toolkit_.28JET.29"></span>Juniper Extension Toolkit (JET)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=7" title="Edit section: Juniper Extension Toolkit (JET)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Junos OS offers programming interfaces and the Juniper Extension Toolkit (JET).<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> JET is a standard component of Junos OS, and it runs on all Juniper routers, switches, and security devices. JET simplifies the automation of operational, configuration, and management tasks, providing a set of open and customizable APIs for control, management, and data planes. It supports standardized programming languages for application development and communication to the Junos OS fast programmable database through standardized and open data exchange formats. It also opens up Trio and Express ASICs via a set of third-party controller-specific adapters, including SAI, <a href="/wiki/OpenFlow" title="OpenFlow">OpenFlow</a>, and <a href="/wiki/P4_(programming_language)" title="P4 (programming language)">P4</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Junos_Fusion">Junos Fusion</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=8" title="Edit section: Junos Fusion"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Junos Fusion<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> is a logical device used to reduce network complexity and operational expenses. Two different Junos Fusion architectures are available, one for provider edge and one for enterprise. </p> <div class="mw-heading mw-heading3"><h3 id="Node_slicing">Node slicing</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=9" title="Edit section: Node slicing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Node slicing<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> is a Junos OS feature that enables creating multiple partitions from one physical MX Series router. Each partition behaves as an independent router, with its own dedicated control plane, data plane, and management plane, allowing it to run multiple services on one physical router. </p> <div class="mw-heading mw-heading3"><h3 id="Routing_protocols_and_applications">Routing protocols and applications</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=10" title="Edit section: Routing protocols and applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Junos OS supports a variety of routing protocols and applications. It also supports <a href="/wiki/Class_of_service" title="Class of service">class of service</a> (CoS), Ethernet VPN (<a href="/wiki/EVPN" class="mw-redirect" title="EVPN">EVPN</a>), firewall filters and policers, flow monitoring, and Layer 2 features. The Junos OS supports high availability mechanisms that are not standard to <a href="/wiki/Unix" title="Unix">Unix</a>, such as Graceful Restart.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> Junos supports a variety of <a href="/wiki/Routing_protocol" title="Routing protocol">routing protocols</a>. With the introduction of the SRX and J-series (past version 9.3) platforms, it also supports "flow mode", which includes stateful firewalling, <a href="/wiki/Network_address_translation" title="Network address translation">NAT</a>, and <a href="/wiki/IPsec" title="IPsec">IPsec</a>. Junos OS generally adheres to industry standards for routing and <a href="/wiki/Multiprotocol_Label_Switching" title="Multiprotocol Label Switching">MPLS</a>.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Secure_boot">Secure boot</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=11" title="Edit section: Secure boot"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Unified_Extensible_Firmware_Interface#Secure_Boot" class="mw-redirect" title="Unified Extensible Firmware Interface">Unified Extensible Firmware Interface § Secure Boot</a></div> <p>Secure boot<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> is a system security enhancement based on the <a href="/wiki/Unified_Extensible_Firmware_Interface" class="mw-redirect" title="Unified Extensible Firmware Interface">Unified Extensible Firmware Interface</a> (UEFI) standard. It works by safeguarding the Basic Input/Output System (<a href="/wiki/BIOS" title="BIOS">BIOS</a>) from tampering or modification and then maintaining that protection throughout the boot process. The secure boot process begins with secure flash, which ensures that unauthorized changes cannot be made to the firmware. Authorized releases of Junos OS carry a digital signature produced by either Juniper Networks directly or one of its authorized partners. </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Junos_OS&action=edit&section=12" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://support.juniper.net/support/eol/software/junos/">"Junos OS Dates & Milestones"</a><span class="reference-accessdate">. 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href="/wiki/Juniper_M_Series" class="mw-redirect" title="Juniper M Series">M-Series</a></li> <li><a href="/wiki/Juniper_T-Series" class="mw-redirect" title="Juniper T-Series">T-Series</a></li> <li><a href="/wiki/Juniper_J-Series" class="mw-redirect" title="Juniper J-Series">J-Series</a></li> <li><a href="/wiki/Juniper_E-Series" title="Juniper E-Series">E-Series</a></li> <li><a href="/wiki/Juniper_MX-Series" class="mw-redirect" title="Juniper MX-Series">MX-Series</a></li> <li>ACX-Series</li> <li>PTX-Series</li> <li><a href="/wiki/Juniper_EX-Series" title="Juniper EX-Series">EX-Series</a></li> <li>QFX-Series</li> <li>SRX Series</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">System software</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">Junos OS</a></li> <li><a href="/wiki/Junos#Junos_SDK" class="mw-redirect" title="Junos">Junos SDK</a></li> <li><a href="/wiki/Junos" class="mw-redirect" title="Junos">Junos</a>E</li> <li><a href="/wiki/ScreenOS" title="ScreenOS">ScreenOS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Acquisitions<br />(<a href="/wiki/List_of_acquisitions_by_Juniper_Networks" title="List of acquisitions by Juniper Networks">List</a>)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Layer_Five" class="mw-redirect" title="Layer Five">Layer Five</a> ('99)</li> <li><a href="/wiki/Pacific_Advantage_Ltd" class="mw-redirect" title="Pacific Advantage Ltd">Pacific Advantage Ltd</a> ('00)</li> <li><a href="/wiki/Micro_Magic" class="mw-redirect" title="Micro Magic">Micro Magic Inc.</a> ('00)</li> <li>Nexsi Systems ('02)</li> <li><a href="/wiki/Unisphere_Networks" title="Unisphere Networks">Unisphere Networks</a> ('02)</li> <li><a href="/wiki/NetScreen_Technologies" title="NetScreen Technologies">NetScreen Technologies</a> ('04)</li> <li><a href="/wiki/Kagoor_Networks" class="mw-redirect" title="Kagoor Networks">Kagoor Networks</a> ('05)</li> <li><a href="/wiki/Peribit_Networks" class="mw-redirect" title="Peribit Networks">Peribit Networks</a> ('05)</li> <li><a href="/wiki/Redline_Networks" class="mw-redirect" title="Redline Networks">Redline Networks</a> ('05)</li> <li>Acorn Packet Solutions ('05)</li> <li><a href="/wiki/Funk_Software" title="Funk Software">Funk Software</a> ('05)</li> <li><a href="/wiki/Ankeena_Networks" class="mw-redirect" title="Ankeena Networks">Ankeena Networks</a> ('10)</li> <li>SMobile Systems ('10)</li> <li><a href="/wiki/Altor_Networks" title="Altor Networks">Altor Networks</a> ('10)</li> <li>Brilliant Telecommunications ('11)</li> <li>Mykonos Software ('12)</li> <li>Contrail Systems ('12)</li> <li>Webscreen ('13)</li> <li>WANDL ('13)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Certification</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Juniper_Networks_Technical_Certification_Program" class="mw-redirect" title="Juniper Networks Technical Certification Program">Juniper Networks Technical Certification Program</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Real-time_operating_systems_(RTOS)" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Real-time_operating_systems" title="Template:Real-time operating systems"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Real-time_operating_systems" title="Template talk:Real-time operating systems"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Real-time_operating_systems" title="Special:EditPage/Template:Real-time operating systems"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Real-time_operating_systems_(RTOS)" style="font-size:114%;margin:0 4em"><a href="/wiki/Real-time_operating_system" title="Real-time operating system">Real-time operating systems</a> (RTOS)</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Operating_system" title="Operating system">Operating<br />systems</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/POSIX" title="POSIX">POSIX</a> support</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Unix-like" title="Unix-like">Unix-like</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/DNIX" title="DNIX">DNIX</a></i></li> <li><a class="mw-selflink selflink">Junos OS</a></li> <li><a href="/wiki/LynxOS" title="LynxOS">LynxOS</a></li> <li><i><a href="/wiki/Multi-Environment_Real-Time" title="Multi-Environment Real-Time">Multi-Environment Real-Time</a></i>^ (<i>MERT</i> – <i>Unix-RT</i>)</li> <li><i><a href="/wiki/OS2000" title="OS2000">OS2000</a></i></li> <li><a href="/wiki/QNX" title="QNX">QNX</a>^</li> <li><a href="/wiki/Real-Time_Linux" class="mw-redirect" title="Real-Time Linux">Real-Time Linux</a>°</li> <li><a href="/wiki/RTLinux" title="RTLinux">RTLinux</a>°</li> <li><i><a href="/wiki/UNOS_(operating_system)" title="UNOS (operating system)">UNOS</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/LiteOS" title="LiteOS">LiteOS</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/LiteOS" title="LiteOS">LiteOS</a></i>°</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Partial</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/ChorusOS" title="ChorusOS">ChorusOS</a></i>^</li> <li><a href="/wiki/Integrity_(operating_system)" title="Integrity (operating system)">Integrity</a>^</li> <li><a href="/wiki/Nucleus_RTOS" title="Nucleus RTOS">Nucleus RTOS</a>^</li> <li><a href="/wiki/NuttX" title="NuttX">NuttX</a>^°</li> <li><a href="/wiki/Operating_System_Embedded" class="mw-redirect" title="Operating System Embedded">Operating System Embedded</a>^ (OSE)</li> <li><a href="/wiki/PX5_RTOS" title="PX5 RTOS">PX5 RTOS</a>^</li> <li><a href="/wiki/RIOT_(operating_system)" title="RIOT (operating system)">RIOT</a>^°</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/TRON_project" title="TRON project">TRON</a> support</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ITRON_project" title="ITRON project">ITRON project</a></li> <li><a href="/wiki/T-Kernel" title="T-Kernel">T-Kernel</a> <ul><li><a href="/wiki/Micro_T-Kernel" title="Micro T-Kernel">Micro T-Kernel</a></li> <li><a href="/wiki/T-Engine_Forum" title="T-Engine Forum">T-Engine Forum</a> (organization)</li> <li><a href="/wiki/T-License" title="T-License">T-License</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Partial</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ECos" title="ECos">eCos</a>°</li> <li><a href="/wiki/RTEMS" title="RTEMS">RTEMS</a>°</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Capability-based_security" title="Capability-based security">Capability-based</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/EROS_(microkernel)" title="EROS (microkernel)">EROS</a></i>^°</li> <li><a href="/wiki/SeL4" class="mw-redirect" title="SeL4">seL4</a>^°</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Java_virtual_machine" title="Java virtual machine">Java virtual machine</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/JavaOS#Chorus/Jazz" title="JavaOS">Chorus/Jazz</a></i>^ (<i><a href="/wiki/JavaOS" title="JavaOS">JavaOS</a></i> + <i><a href="/wiki/ChorusOS" title="ChorusOS">ChorusOS</a></i>^)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/DOS" title="DOS">DOS</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Multiuser_DOS" title="Multiuser DOS">Multiuser DOS</a></i> <ul><li><i><a href="/wiki/Concurrent_DOS" class="mw-redirect" title="Concurrent DOS">Concurrent DOS</a></i></li> <li><i><a href="/wiki/FlexOS" title="FlexOS">FlexOS</a></i></li> <li><i><a href="/wiki/REAL/32" class="mw-redirect" title="REAL/32">REAL/32</a></i></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/L4_microkernel_family" title="L4 microkernel family">L4</a> kernel</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/L4Linux" title="L4Linux">L<sup>4</sup>Linux</a>^°</li> <li><a href="/wiki/PikeOS" title="PikeOS">PikeOS</a>^</li> <li><i><a href="/wiki/REX_OS" title="REX OS">REX OS</a></i>^</li> <li><a href="/wiki/Wombat_(operating_system)" title="Wombat (operating system)">Wombat</a>^°</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Psion_(company)" title="Psion (company)">Psion</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/EKA2" title="EKA2">EKA2</a></i>^° kernel → <i><a href="/wiki/Symbian" title="Symbian">Symbian</a> OS</i>^°</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Microsoft" title="Microsoft">Microsoft</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ThreadX" title="ThreadX">ThreadX</a>^</li> <li><a href="/wiki/Windows_Embedded_Compact" title="Windows Embedded Compact">Windows Embedded Compact</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/IBM" title="IBM">IBM</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/4680_OS" class="mw-redirect" title="4680 OS">4680 OS</a></i></li> <li><i><a href="/wiki/4690_Operating_System" title="4690 Operating System">4690 OS</a></i></li> <li><a href="/wiki/Transaction_Processing_Facility" title="Transaction Processing Facility">Transaction Processing Facility</a> (TPF)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Texas_Instruments" title="Texas Instruments">Texas Instruments</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/DSOS" title="DSOS">DSOS</a></i></li> <li><a href="/wiki/TI-RTOS#RTOS_kernel_overview" title="TI-RTOS">TI-RTOS Kernel</a>^°</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Digital_Equipment_Corporation" title="Digital Equipment Corporation">DEC</a> <a href="/wiki/PDP-11" title="PDP-11">PDP-11</a> <a href="/wiki/VAX" title="VAX">VAX</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/RSX-11" title="RSX-11">RSX-11</a></i></li> <li><i><a href="/wiki/RT-11" title="RT-11">RT-11</a></i></li> <li><i><a href="/wiki/VAXELN" title="VAXELN">VAXELN</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Low resource</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ChibiOS/RT" title="ChibiOS/RT">ChibiOS/RT</a>^°</li> <li><a href="/wiki/Contiki" title="Contiki">Contiki</a>°</li> <li><a href="/wiki/ERIKA_Enterprise" title="ERIKA Enterprise">ERIKA Enterprise</a>°</li> <li>FunkOS°</li> <li><a href="/wiki/Apache_Mynewt" title="Apache Mynewt">Mynewt</a>°</li> <li><i><a href="/wiki/Nano-RK" title="Nano-RK">Nano-RK</a></i>°</li> <li><a href="/wiki/OpenComRTOS" title="OpenComRTOS">OpenComRTOS</a>^</li> <li><a href="/wiki/PX5_RTOS" title="PX5 RTOS">PX5 RTOS</a>^</li> <li><a href="/wiki/RT-Thread" title="RT-Thread">RT-Thread</a>° Nano</li> <li><a href="/wiki/RIOT_(operating_system)" title="RIOT (operating system)">RIOT</a>°</li> <li><a href="/wiki/ThreadX" title="ThreadX">ThreadX</a>^</li> <li><a href="/wiki/Zephyr_(operating_system)" title="Zephyr (operating system)">Zephyr</a>^°</li></ul> </div></td></tr></tbody></table><div> <ul><li><i><a href="/wiki/BeRTOS" title="BeRTOS">BeRTOS</a></i>^°</li> <li><i><a href="/wiki/DioneOS" title="DioneOS">DioneOS</a></i></li> <li><a href="/wiki/Segger_Microcontroller_Systems" title="Segger Microcontroller Systems">embOS</a></li> <li><a href="/wiki/FreeRTOS" title="FreeRTOS">FreeRTOS</a>^°</li> <li><a href="/wiki/Micro-Controller_Operating_Systems" title="Micro-Controller Operating Systems">µC/OS</a>^°</li> <li><a href="/wiki/Green_Hills_Software#Real-time_operating_systems" title="Green Hills Software">µ-velOSity</a>^</li> <li><a href="/wiki/MQX" title="MQX">MQX</a>^</li> <li><a href="/wiki/OS-9" title="OS-9">OS-9</a> (<a href="/wiki/Microware" title="Microware">Microware</a>)</li> <li><a href="/wiki/Phantom_OS" title="Phantom OS">Phantom OS</a>^°</li> <li><i><a href="/wiki/PSOS_(real-time_operating_system)" title="PSOS (real-time operating system)">pSOS</a></i></li> <li><i><a href="/wiki/RMX_(operating_system)" title="RMX (operating system)">RMX</a></i></li> <li><a href="/wiki/RT-Thread" title="RT-Thread">RT-Thread</a>° Standard</li> <li><a href="/wiki/ScreenOS" title="ScreenOS">ScreenOS</a></li> <li><i><a href="/wiki/Sintran_III" title="Sintran III">Sintran III</a></i></li> <li><i><a href="/wiki/THEOS" title="THEOS">THEOS</a></i></li> <li><i><a href="/wiki/Thoth_(operating_system)" title="Thoth (operating system)">Thoth</a></i>^ → <i><a href="/wiki/Harmony_(operating_system)" title="Harmony (operating system)">Harmony</a></i>^</li> <li><a href="/wiki/Versatile_Real-Time_Executive" title="Versatile Real-Time Executive">VRTX</a>^</li> <li><a href="/wiki/VxWorks" title="VxWorks">VxWorks</a></li> <li><a href="/wiki/EulerOS" title="EulerOS">UniProton</a></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Software_framework" title="Software framework">Frameworks</a>, <a href="/wiki/Software_development_kit" title="Software development kit">kits</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <li><a href="/wiki/Robot_Operating_System" title="Robot Operating System">Robot Operating System</a>° 2</li> <li><a href="/wiki/RTAI" title="RTAI">RTAI</a>°</li> <li><a href="/wiki/TI-RTOS" title="TI-RTOS">TI-RTOS</a>^°</li> <li><a href="/wiki/Xenomai" title="Xenomai">Xenomai</a>°</li> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Programmer" title="Programmer">Developers</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gordon_Bell_(QNX)" title="Gordon Bell (QNX)">Gordon Bell</a></li> <li><a href="/wiki/David_Cheriton" title="David Cheriton">David Cheriton</a></li> <li><a href="/wiki/Dave_Cutler" title="Dave Cutler">Dave Cutler</a></li> <li><a href="/wiki/Dan_Dodge" title="Dan Dodge">Dan Dodge</a></li> <li><a href="/wiki/Adam_Dunkels" title="Adam Dunkels">Adam Dunkels</a></li> <li><a href="/wiki/Ken_Sakamura" title="Ken Sakamura">Ken Sakamura</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><i>Italics</i> <b>= discontinued</b></li> <li><b>^ = <a href="/wiki/Microkernel" title="Microkernel">Microkernel</a></b></li> <li><b>° = <a href="/wiki/Open-source_software" title="Open-source software">Open-source software</a></b><br /><span class="noviewer" typeof="mw:File"><span title="List-Class article"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/16px-Symbol_list_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/23px-Symbol_list_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/31px-Symbol_list_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <b><a href="/wiki/Comparison_of_real-time_operating_systems" title="Comparison of real-time operating systems">Comparison</a></b> <span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <b><a href="/wiki/Category:Real-time_operating_systems" title="Category:Real-time operating systems">Category</a></b></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Network_operating_systems_(NOS)" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Network_operating_systems" title="Template:Network operating systems"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Network_operating_systems" title="Template talk:Network operating systems"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Network_operating_systems" title="Special:EditPage/Template:Network operating systems"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Network_operating_systems_(NOS)" style="font-size:114%;margin:0 4em"><a href="/wiki/Network_operating_system" title="Network operating system">Network operating systems</a> (NOS)</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Current</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AlliedWare_Plus" title="AlliedWare Plus">AlliedWare Plus</a></li> <li><a href="/wiki/Cisco_IOS" title="Cisco IOS">Cisco IOS</a></li> <li><a href="/wiki/Cisco_NX-OS" title="Cisco NX-OS">Cisco NX-OS</a></li> <li><a href="/wiki/Dell_Networking_Operating_System" title="Dell Networking Operating System">Dell Networking Operating System</a></li> <li><a href="/wiki/ExtremeXOS" title="ExtremeXOS">ExtremeXOS</a></li> <li><a class="mw-selflink selflink">Junos OS</a></li> <li><a href="/wiki/OpenWrt" title="OpenWrt">OpenWrt</a></li> <li><a href="/wiki/PfSense" title="PfSense">pfSense</a></li> <li><a href="/wiki/ScreenOS" title="ScreenOS">ScreenOS</a></li> <li><a href="/wiki/SONiC_(operating_system)" title="SONiC (operating system)">SONiC</a></li> <li><a href="/wiki/VyOS" title="VyOS">VyOS</a></li> <li><a href="/wiki/ZyNOS" title="ZyNOS">ZyNOS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Historic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3%2BShare" title="3+Share">3+Share</a></li> <li><a href="/wiki/Banyan_VINES" title="Banyan VINES">Banyan VINES</a></li> <li><a href="/wiki/Cumulus_Networks#Cumulus_Linux" title="Cumulus Networks">Cumulus Linux</a></li> <li><a href="/wiki/LAN_Manager" title="LAN Manager">LAN Manager</a></li> <li><a href="/wiki/MS-Net" title="MS-Net">MS-Net</a></li> <li><a href="/wiki/NetWare" title="NetWare">NetWare</a></li> <li><a href="/wiki/Novell_S-Net" title="Novell S-Net">Novell S-Net</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/Category:Network_operating_systems" title="Category:Network operating systems">Category</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Berkeley_Software_Distribution" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Berkeley_Software_Distribution" title="Template:Berkeley Software Distribution"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Berkeley_Software_Distribution" title="Template talk:Berkeley Software Distribution"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Berkeley_Software_Distribution" title="Special:EditPage/Template:Berkeley Software Distribution"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Berkeley_Software_Distribution" style="font-size:114%;margin:0 4em"><a href="/wiki/Berkeley_Software_Distribution" title="Berkeley Software Distribution">Berkeley Software Distribution</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bob_Fabry" title="Bob Fabry">Bob Fabry</a></li> <li><a href="/wiki/Keith_Bostic_(software_engineer)" title="Keith Bostic (software engineer)">Keith Bostic</a></li> <li><a href="/wiki/Marshall_Kirk_McKusick" title="Marshall Kirk McKusick">Marshall Kirk McKusick</a></li> <li><a href="/wiki/Michael_J._Karels" title="Michael J. Karels">Michael J. Karels</a></li> <li><a href="/wiki/Bill_Joy" title="Bill Joy">Bill Joy</a></li> <li><a href="/wiki/Samuel_Leffler" class="mw-redirect" title="Samuel Leffler">Samuel Leffler</a></li> <li><a href="/wiki/Jordan_Hubbard" title="Jordan Hubbard">Jordan Hubbard</a></li> <li><a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">Theo de Raadt</a></li> <li><a href="/wiki/Poul-Henning_Kamp" title="Poul-Henning Kamp">Poul-Henning Kamp</a></li> <li><a href="/wiki/Matthew_Dillon" title="Matthew Dillon">Matthew Dillon</a></li> <li><a href="/wiki/Ozalp_Babaoglu" class="mw-redirect" title="Ozalp Babaoglu">Ozalp Babaoglu</a></li> <li><a href="/wiki/Lynne_Jolitz" title="Lynne Jolitz">Lynne</a> and <a href="/wiki/William_Jolitz" title="William Jolitz">William Jolitz</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Derivatives</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Active</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a> <ul><li><a href="/wiki/GhostBSD" title="GhostBSD">GhostBSD</a></li></ul></li> <li><a href="/wiki/OpenBSD" title="OpenBSD">OpenBSD</a></li> <li><a href="/wiki/NetBSD" title="NetBSD">NetBSD</a></li> <li><a href="/wiki/DragonFly_BSD" title="DragonFly BSD">DragonFly BSD</a></li> <li><a href="/wiki/MidnightBSD" title="MidnightBSD">MidnightBSD</a></li> <li><a href="/wiki/MirOS_BSD" title="MirOS BSD">MirOS BSD</a></li> <li><a class="mw-selflink selflink">Junos OS</a></li> <li><a href="/wiki/Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> <ul><li><a href="/wiki/MacOS" title="MacOS">macOS</a></li> <li><a href="/wiki/IOS" title="IOS">iOS</a> <ul><li><a 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