{"id":1012984,"date":"2023-08-18T06:38:25","date_gmt":"2023-08-18T06:38:25","guid":{"rendered":"https:\/\/beta-new.inhand.com\/?p=6779"},"modified":"2026-06-03T11:49:37","modified_gmt":"2026-06-03T11:49:37","slug":"what-is-a-virtual-lan-vlan","status":"publish","type":"post","link":"https:\/\/www.inhand.com\/en\/support\/blogs\/what-is-a-virtual-lan-vlan","title":{"rendered":"What Is a Virtual LAN (VLAN)?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1012984\" class=\"elementor elementor-1012984\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f5deb9f e-con-full anli_box e-flex e-con e-parent\" data-id=\"f5deb9f\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6c1a9e e-con-full anli_box_l e-flex e-con e-child\" data-id=\"6c1a9e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-34437fe7 elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"34437fe7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Is a Virtual LAN (VLAN)?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3775149e e-con-full e-flex e-con e-child\" data-id=\"3775149e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-10a10b91 elementor-widget elementor-widget-heading\" data-id=\"10a10b91\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Blogs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6bac9b35 e-con-full e-flex e-con e-child\" data-id=\"6bac9b35\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-788fe74d elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"788fe74d\" data-element_type=\"widget\" id=\"maodian1\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Key Takeaways<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-257fbef5 elementor-widget elementor-widget-heading\" data-id=\"257fbef5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A VLAN is a logical grouping of network devices with different physical LANs. Restrict broadcast domain: the broadcast domain is limited to one VLAN, which saves bandwidth and improves network processing capacity.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a377456 elementor-widget elementor-widget-text-editor\" data-id=\"a377456\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-size: inherit; text-align: inherit; font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); background-color: var(--palettecolor8); color: var(--color); font-style: var(--fontStyle, inherit); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);\">WA VLAN is a logical grouping of network devices with different physical LANs.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d48d250 elementor-widget elementor-widget-heading\" data-id=\"d48d250\" data-element_type=\"widget\" id=\"title1\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Are VLANs Helpful With?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3fa35d elementor-widget elementor-widget-text-editor\" data-id=\"b3fa35d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>By further dividing the network part of the IP address into several subnets, the problems of the low utilization rate of IP address space and inflexible two-level IP addresses can be solved.<\/p><p>Similar to VLAN, the subnet can isolate communication between hosts. Hosts belonging to different VLANs cannot communicate directly with each other, nor can hosts belonging to different subnets communicate directly with each other. But there is no necessary correspondence between them.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53c2a45 elementor-widget elementor-widget-image\" data-id=\"53c2a45\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"2334\" height=\"1377\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1.webp\" class=\"attachment-full size-full wp-image-1012685\" alt=\"Network diagram showing devices segmented into virtual LAN groups for optimized traffic flow\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1.webp 2334w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1-300x177.webp 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1-2000x1180.webp 2000w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1-768x453.webp 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1-1536x906.webp 1536w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1-2048x1208.webp 2048w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1-18x12.webp 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog1-600x354.webp 600w\" sizes=\"(max-width: 2334px) 100vw, 2334px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-536e9c5 elementor-widget elementor-widget-image\" data-id=\"536e9c5\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2334\" height=\"1377\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.webp\" class=\"attachment-full size-full wp-image-1012693\" alt=\"Network diagram showing VLAN segmentation separating devices into logical groups\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.webp 2334w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2-300x177.webp 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2-2000x1180.webp 2000w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2-768x453.webp 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2-1536x906.webp 1536w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2-2048x1208.webp 2048w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2-18x12.webp 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2-600x354.webp 600w\" sizes=\"(max-width: 2334px) 100vw, 2334px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e12544 elementor-widget elementor-widget-text-editor\" data-id=\"8e12544\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Therefore, VLAN has the following advantages:<\/p><p>1. Restrict broadcast domain: the broadcast domain is limited to one VLAN, which saves bandwidth and improves network processing capacity.<\/p><p>2. Enhance the security of LAN: Framesin different VLANs are isolated from each other during transmission, that is, users in one VLAN cannot communicate directly with users in other VLANs.<\/p><p>3. Improve the robustness of the network: the fault is limited to one VLAN, and the fault in this VLAN will not affect the normal work of other VLANs.<\/p><p>4. Flexible construction of virtual workgroups: VLAN can be used to divide different users into different workgroups, and users in the same workgroup don&#8217;t have to be limited to a fixed physical scope, so network construction and maintenance are more convenient and flexible.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-226b97c elementor-widget elementor-widget-heading\" data-id=\"226b97c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">VLAN vs Subnet<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f7236c6 elementor-widget elementor-widget-text-editor\" data-id=\"f7236c6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>By further dividing the network part of IP address into several subnets, the problems of low utilization rate of IP address space and inflexible two-level IP address can be solved.<\/p><p>Similar to VLAN, subnet can isolate communication between hosts. Hosts belonging to different VLAN cannot communicate directly with each other, nor can hosts belonging to different subnets communicate directly with each other. But there is no necessary correspondence between them.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1e87d53 e-con-full e-flex e-con e-child\" data-id=\"1e87d53\" data-element_type=\"container\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a14c13b e-con-full anli_l_st e-flex e-con e-child\" data-id=\"a14c13b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:90,&quot;sticky_effects_offset&quot;:100,&quot;sticky_anchor_link_offset&quot;:100,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\">\n\t\t<div class=\"elementor-element elementor-element-1da7e082 e-con-full e-flex e-con e-child\" data-id=\"1da7e082\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-69473ed elementor-widget elementor-widget-heading\" data-id=\"69473ed\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Read More <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-108ac635 elementor-widget elementor-widget-shortcode\" data-id=\"108ac635\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">    <style>\n        \/* --- \u8fd9\u91cc\u7684\u53c2\u6570\u5168\u90e8\u4fdd\u7559\u4f60\u7684\u4fee\u6539 --- *\/\n        .vpro-wrapper {\n            width: 100%;\n            max-width: 25rem;\n            height: 38.5rem;\n            overflow-y: auto;\n            overflow-x: hidden;\n            \/* 1. \u589e\u52a0\u5e95\u90e8\u5185\u8fb9\u8ddd\uff0c\u5236\u9020\u865a\u7a7a\u611f *\/\n            padding: 0.3125rem 0.3125rem 0rem 0.3125rem;\n            scrollbar-width: thin;\n            box-sizing: border-box;\n        }\n\n        .vpro-wrapper::-webkit-scrollbar { width: 0.25rem; }\n        .vpro-wrapper::-webkit-scrollbar-thumb { background: #ccc; border-radius: 0.625rem; }\n\n        .vpro-item {\n            width: 100%;\n            height: 21rem;\n            margin-bottom: 1rem;\n            background: #fff;\n            border: 0.0625rem solid #D7D7D7;\n            border-radius: 0.5rem;\n            display: flex;\n            flex-direction: column;\n            flex-shrink: 0;\n            overflow: hidden;\n            box-sizing: border-box;\n            transition: all 0.3s ease;\n        }\n\n        .vpro-item:hover {\n            box-shadow: 0 0.5rem 1.25rem rgba(0,0,0,0.08);\n            transform: translateY(-0.125rem);\n        }\n\n        .vpro-img-box {\n            width: 100%;\n            height: 14rem; \/* \u4fdd\u7559\u4f60\u6539\u7684 10rem *\/\n            overflow: hidden;\n            background: #f5f5f5;\n            flex-shrink: 0;\n        }\n\n        .vpro-img-box img {\n            width: 100%;\n            height: 100%;\n            object-fit: cover;\n            object-position: center;\n            display: block;\n        }\n\n        .vpro-content {\n            padding: 0.5rem 0.5rem 0.8rem 1.25rem;\n            flex-grow: 1;\n            display: flex;\n            align-items: center;\n        }\n\n        .vpro-title {\n            font-size: 1.25rem; \/* \u4fdd\u7559\u4f60\u6539\u7684 1.5rem *\/\n            font-weight: 500;\n            line-height: 1.4;\n            color: #000;\n            display: -webkit-box;\n            -webkit-line-clamp: 3; \/* \u4fdd\u7559\u4f60\u6539\u7684 3 \u884c *\/\n            -webkit-box-orient: vertical;\n            overflow: hidden;\n            text-decoration: none;\n        }\n\n        .vpro-title a {\n            text-decoration: none;\n            color: inherit;\n        }\n\n        \/* 2. \u589e\u52a0\u4e00\u4e2a\u7269\u7406\u5360\u4f4d\u7b26\uff0c\u786e\u4fdd\u6eda\u52a8\u5230\u5e95\u90e8\u6709\u4f59\u91cf *\/\n        .vpro-bottom-spacer {\n            height: 4rem;\n            width: 100%;\n            flex-shrink: 0;\n        }\n    <\/style>\n\n    <div class=\"vpro-wrapper\">\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/en\/support\/blogs\/why-use-vrrp-technology\">\n                                                    <img decoding=\"async\" width=\"600\" height=\"352\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/vrrp.png\" class=\"attachment-full size-full wp-post-image\" alt=\"VRRP ensures router failover for continuous high-speed IPv6 industrial IoT connectivity.\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/vrrp.png 600w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/vrrp-300x176.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/vrrp-18x12.png 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/en\/support\/blogs\/why-use-vrrp-technology\">Why Use VRRP technology?<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/en\/support\/blogs\/modbus-rtu-vs-modbus-tcp-ip\">\n                                                    <img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"596\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/MODBUS-RTU-VS-MODBUS-TCP_IP-1.png\" class=\"attachment-full size-full wp-post-image\" alt=\"MODBUS RTU VS MODBUS TCP_IP (1)\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/MODBUS-RTU-VS-MODBUS-TCP_IP-1.png 900w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/MODBUS-RTU-VS-MODBUS-TCP_IP-1-300x199.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/MODBUS-RTU-VS-MODBUS-TCP_IP-1-768x509.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/MODBUS-RTU-VS-MODBUS-TCP_IP-1-18x12.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/MODBUS-RTU-VS-MODBUS-TCP_IP-1-600x397.png 600w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/en\/support\/blogs\/modbus-rtu-vs-modbus-tcp-ip\">Modbus RTU vs. Modbus TCP\/IP<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/en\/support\/blogs\/what-is-ipv6\">\n                                                    <img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"352\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/what-is-ipv6-1.png\" class=\"attachment-full size-full wp-post-image\" alt=\"what-is-ipv6\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/what-is-ipv6-1.png 600w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/what-is-ipv6-1-300x176.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/what-is-ipv6-1-18x12.png 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/en\/support\/blogs\/what-is-ipv6\">What Is IPv6? Why Do We Choose to Use It?<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n        \n        <div class=\"vpro-bottom-spacer\"><\/div>\n    <\/div>\n    <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>What Is a Virtual LAN (VLAN)? WA VLAN is a logical grouping of network devices with different physical LANs&#8230;. What Are VLANs Helpful With? By further dividing the network part of the IP address into several subnets, the problems of the low utilization rate of IP address space and inflexible two-level IP addresses can be [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":960001,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[817],"tags":[],"case_tag":[],"class_list":["post-1012984","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Virtual LAN (VLAN) Benefits: Security, Broadcast Control &amp; Flexibility<\/title>\n<meta name=\"description\" content=\"Discover Virtual LAN (VLAN) technology: isolates broadcast domains to save bandwidth, enhances network security through segmentation, and enables flexible workgroup creation across physical networks.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.inhand.com\/en\/support\/blogs\/what-is-a-virtual-lan-vlan\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is a Virtual LAN (VLAN)?\" \/>\n<meta property=\"og:description\" content=\"A VLAN is a logical grouping of network devices with different physical LANs. 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