{"id":1162,"date":"2026-05-12T23:02:04","date_gmt":"2026-05-12T23:02:04","guid":{"rendered":"https:\/\/edk-tech.net\/?post_type=glossary&#038;p=1162"},"modified":"2026-05-12T23:02:06","modified_gmt":"2026-05-12T23:02:06","slug":"ieee-802-3","status":"publish","type":"glossary","link":"https:\/\/edk-tech.net\/?glossary=ieee-802-3","title":{"rendered":"IEEE 802.3"},"content":{"rendered":"\n<p><a href=\"https:\/\/edk-tech.net\/?glossary=ieee-802-3\"\r\n                    class=\"yaw-glossary yaw-glossary-main-link\"\r\n                    title=\"IEEE 802.3\"\r\n                    data-bs-toggle=\"popover\"\r\n                    data-bs-html=\"true\"\r\n                    data-bs-trigger=\"hover focus\"\r\n                    data-bs-content=\"&lt;p&gt;IEEE 802.3 is the official Ethernet standard maintained by the Institute of Electrical and Electronics Engineers (IEEE). It defines the Physical Layer and Data Link Layer specifications for wired Ethernet networks, including signaling methods, frame formats, cabling requirements, speed classifications,&hellip;&lt;\/p&gt;\n\">IEEE 802.3<\/a> is the official <a href=\"https:\/\/edk-tech.net\/?glossary=ethernet\"\r\n                    class=\"yaw-glossary yaw-glossary-main-link\"\r\n                    title=\"Ethernet\"\r\n                    data-bs-toggle=\"popover\"\r\n                    data-bs-html=\"true\"\r\n                    data-bs-trigger=\"hover focus\"\r\n                    data-bs-content=\"&lt;p&gt;Ethernet is a family of networking technologies defined by the IEEE 802.3 standard. It governs how devices communicate over wired local area networks (LANs), including electrical signaling, frame structure, media access control (MAC), and physical cabling types. Ethernet supports speeds&hellip;&lt;\/p&gt;\n\">Ethernet<\/a> standard maintained by the Institute of Electrical and Electronics Engineers (IEEE). It defines the <strong>Physical Layer<\/strong> and <strong>Data Link Layer<\/strong> specifications for wired Ethernet networks, including signaling methods, frame formats, cabling requirements, speed classifications, and media types.<\/p>\n\n\n\n<p><strong>What IEEE 802.3 Defines:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Physical media (copper, fiber, coax)<\/li>\n\n\n\n<li>Speed standards (10 Mbps \u2192 100 Gbps+)<\/li>\n\n\n\n<li>Encoding schemes (Manchester, 4B\/5B, 8B\/10B, PAM\u20115, PAM\u201116)<\/li>\n\n\n\n<li>MAC addressing and CSMA\/CD behavior<\/li>\n\n\n\n<li>Frame structure (preamble, header, payload, FCS)<\/li>\n\n\n\n<li>Auto\u2011negotiation and link training<\/li>\n<\/ul>\n\n\n\n<p><strong>Why It Matters:<\/strong><\/p>\n\n\n\n<p>IEEE 802.3 ensures interoperability between vendors and guarantees that Ethernet devices follow the same electrical and logical rules. Every Ethernet cable, NIC, switch, and transceiver is built to comply with this standard.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>IEEE 802.3 is the official Ethernet standard maintained by the Institute of Electrical and Electronics Engineers (IEEE). It defines the Physical Layer and Data Link Layer specifications for wired Ethernet networks, including signaling methods, frame formats, cabling requirements, speed classifications, and media types.<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","format":"standard","class_list":["post-1162","glossary","type-glossary","status-publish","format-standard"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/glossary\/1162","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/glossary\/1162\/revisions"}],"predecessor-version":[{"id":1163,"href":"https:\/\/edk-tech.net\/index.php?rest_route=\/wp\/v2\/glossary\/1162\/revisions\/1163"}],"wp:attachment":[{"href":"https:\/\/edk-tech.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}