{"id":479548,"date":"2023-08-09T10:41:56","date_gmt":"2023-08-09T10:41:56","guid":{"rendered":""},"modified":"2023-09-05T11:19:05","modified_gmt":"2023-09-05T11:19:05","slug":"vlan-tagging","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/vlan-tagging\/","title":{"rendered":"VLAN \u6807\u8bb0"},"content":{"rendered":"<p>\u6709\u5173 VLAN \u6807\u8bb0\u7684\u7b80\u8981\u4fe1\u606f<\/p>\n<p>\u865a\u62df\u5c40\u57df\u7f51 (VLAN) \u6807\u8bb0\u662f\u4e00\u79cd\u534f\u8bae\uff0c\u5141\u8bb8\u591a\u4e2a VLAN \u5171\u4eab\u540c\u4e00\u7269\u7406\u7f51\u7edc\u3002\u5b83\u5728\u4ee5\u592a\u7f51\u5e27\u4e2d\u63d2\u5165\u9644\u52a0\u4fe1\u606f\uff0c\u4ee5\u8bc6\u522b\u8be5\u5e27\u5c5e\u4e8e\u54ea\u4e2a VLAN\u3002\u8fd9\u5141\u8bb8\u7f51\u7edc\u7ba1\u7406\u5458\u5bf9\u7f51\u7edc\u8fdb\u884c\u5206\u6bb5\uff0c\u4ece\u800c\u63d0\u9ad8\u6548\u7387\u548c\u5b89\u5168\u6027\u3002<\/p>\n<h2>VLAN \u6807\u8bb0\u7684\u8d77\u6e90\u5386\u53f2\u53ca\u5176\u9996\u6b21\u63d0\u53ca<\/h2>\n<p>VLAN \u6807\u8bb0\u6700\u65e9\u4e8e 1998 \u5e74\u5728 IEEE 802.1Q \u6807\u51c6\u4e2d\u5f15\u5165\u3002VLAN \u6807\u8bb0\u7684\u5f00\u53d1\u6e90\u4e8e\u5728\u5355\u4e2a\u7269\u7406\u7f51\u7edc\u5185\u9694\u79bb\u7f51\u7edc\u6d41\u91cf\u7684\u9700\u6c42\u3002\u8fd9\u79cd\u9694\u79bb\u6709\u52a9\u4e8e\u589e\u5f3a\u5b89\u5168\u6027\u5e76\u7b80\u5316\u7f51\u7edc\u7ba1\u7406\u3002IEEE 802.1Q \u6807\u51c6\u5efa\u7acb\u4e86\u4e00\u79cd\u8de8\u5404\u79cd\u8bbe\u5907\u3001\u4f9b\u5e94\u5546\u548c\u5e73\u53f0\u5b9e\u65bd VLAN \u7684\u901a\u7528\u65b9\u6cd5\u3002<\/p>\n<h2>\u6709\u5173 VLAN \u6807\u8bb0\u7684\u8be6\u7ec6\u4fe1\u606f\uff1a\u6269\u5c55\u4e3b\u9898 VLAN \u6807\u8bb0<\/h2>\n<p>VLAN \u6807\u8bb0\u5728\u73b0\u4ee3\u7f51\u7edc\u67b6\u6784\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u901a\u8fc7\u4f7f\u7528\u7279\u5b9a VLAN \u4fe1\u606f\u6807\u8bb0\u6570\u636e\u5305\uff0c\u7f51\u7edc\u8bbe\u5907\u53ef\u4ee5\u66f4\u667a\u80fd\u5730\u5904\u7406\u6570\u636e\u5305\u3002\u8fd9\u79cd\u5212\u5206\u5230\u4e0d\u540c VLAN \u7684\u65b9\u5f0f\u6709\u52a9\u4e8e\uff1a<\/p>\n<ul>\n<li><strong>\u589e\u5f3a\u5b89\u5168\u6027<\/strong>\uff1a\u9694\u79bb\u6d41\u91cf\u53ef\u4ee5\u9650\u5236\u5bf9\u654f\u611f\u4fe1\u606f\u7684\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u7f51\u7edc\u6548\u7387<\/strong>\uff1a\u5bf9\u7f51\u7edc\u8fdb\u884c\u5206\u6bb5\u53ef\u4ee5\u9632\u6b62\u62e5\u585e\uff0c\u4ece\u800c\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u3002<\/li>\n<li><strong>\u6613\u4e8e\u7ba1\u7406<\/strong>\uff1a\u5c06\u76f8\u5173\u8bbe\u5907\u5206\u7ec4\u5230 VLAN \u4e2d\u53ef\u7b80\u5316\u7ba1\u7406\u3002<\/li>\n<\/ul>\n<h2>VLAN \u6807\u8bb0\u7684\u5185\u90e8\u7ed3\u6784\uff1aVLAN \u6807\u8bb0\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>VLAN \u6807\u8bb0\u4f7f\u7528\u7279\u6b8a\u7684 VLAN \u6807\u5934\u5c06\u4fe1\u606f\u6dfb\u52a0\u5230\u4ee5\u592a\u7f51\u5e27\u3002\u6b64\u6807\u5934\u5305\u542b\uff1a<\/p>\n<ul>\n<li><strong>\u6807\u7b7e\u534f\u8bae\u6807\u8bc6\u7b26 (TPID)<\/strong>\uff1a\u901a\u5e38\u8bbe\u7f6e\u4e3a 0x8100\uff0c\u8868\u793a\u8be5\u5e27\u4e3a VLAN \u6807\u8bb0\u5e27\u3002<\/li>\n<li><strong>\u4f18\u5148\u7ea7\u4ee3\u7801\u70b9 (PCP)<\/strong>\uff1a\u8fd9\u51b3\u5b9a\u4e86\u5e27\u7684\u4f18\u5148\u7ea7\u3002<\/li>\n<li><strong>\u89c4\u8303\u683c\u5f0f\u6807\u8bc6\u7b26 (CFI)<\/strong>\uff1a\u5c01\u88c5\u5e27\u7684\u683c\u5f0f\u3002<\/li>\n<li><strong>VLAN \u6807\u8bc6\u7b26 (VID)<\/strong>\uff1a\u6307\u5b9a\u5e27\u6240\u5c5e\u7684VLAN\u3002<\/li>\n<\/ul>\n<p>\u4ea4\u6362\u673a\u4f7f\u7528\u6b64\u4fe1\u606f\u5728\u7f51\u7edc\u5185\u6b63\u786e\u5730\u8def\u7531\u5e27\u3002<\/p>\n<h2>VLAN \u6807\u8bb0\u7684\u4e3b\u8981\u7279\u6027\u5206\u6790<\/h2>\n<p>VLAN \u6807\u8bb0\u7684\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u7075\u6d3b\u6027<\/strong>\uff1a\u5141\u8bb8\u5728\u540c\u4e00\u7269\u7406\u57fa\u7840\u8bbe\u65bd\u5185\u521b\u5efa\u865a\u62df\u7f51\u7edc\u3002<\/li>\n<li><strong>\u53ef\u6269\u5c55\u6027<\/strong>\uff1a\u901a\u8fc7\u6dfb\u52a0\u65b0\u7684 VLAN \u6765\u4fc3\u8fdb\u589e\u957f\uff0c\u800c\u65e0\u9700\u8fdb\u884c\u7269\u7406\u66f4\u6539\u3002<\/li>\n<li><strong>\u4e92\u64cd\u4f5c\u6027<\/strong>\uff1a\u9075\u5faa\u884c\u4e1a\u6807\u51c6\uff0c\u786e\u4fdd\u8bbe\u5907\u4e4b\u95f4\u7684\u517c\u5bb9\u6027\u3002<\/li>\n<\/ul>\n<h2>VLAN \u6807\u8bb0\u7684\u7c7b\u578b<\/h2>\n<p>\u4f7f\u7528\u4e86\u4e0d\u540c\u7c7b\u578b\u7684 VLAN \u6807\u8bb0\u6280\u672f\uff0c\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u672a\u6807\u8bb0<\/td>\n<td>\u6ca1\u6709 VLAN \u6807\u7b7e\u7684\u5e27\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5355\u6807\u7b7e<\/td>\n<td>\u5e26\u6709\u4e00\u4e2a VLAN \u6807\u7b7e\u7684\u5e27\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u53cc\u6807\u7b7e<\/td>\n<td>\u5e26\u6709\u4e24\u4e2a VLAN \u6807\u7b7e\uff08Q-in-Q \u6807\u8bb0\uff09\u7684\u5e27\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>VLAN \u6807\u8bb0\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u7684\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5<\/h2>\n<p>VLAN \u6807\u8bb0\u7528\u4e8e\uff1a<\/p>\n<ul>\n<li><strong>\u521b\u5efa\u865a\u62df\u7f51\u7edc<\/strong>\uff1a\u5bf9\u4f01\u4e1a\u5185\u5404\u4e2a\u90e8\u95e8\u7684\u6d41\u91cf\u8fdb\u884c\u7ec6\u5206\u3002<\/li>\n<li><strong>\u589e\u5f3a\u5b89\u5168\u6027<\/strong>\uff1a\u5206\u79bb\u654f\u611f\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u914d\u7f6e\u9519\u8bef<\/strong>\uff1a\u89e3\u51b3\u65b9\u6848\u5305\u62ec\u9002\u5f53\u7684\u89c4\u5212\u548c\u7ba1\u7406\u3002<\/li>\n<li><strong>\u517c\u5bb9\u6027\u95ee\u9898<\/strong>\uff1a\u786e\u4fdd\u6240\u6709\u8bbe\u5907\u9075\u5faa\u76f8\u540c\u7684\u6807\u51c6\u3002<\/li>\n<\/ul>\n<h2>\u4e3b\u8981\u7279\u70b9\u53ca\u5176\u4ed6\u4e0e\u540c\u7c7b\u4ea7\u54c1\u7684\u6bd4\u8f83<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5f81<\/th>\n<th>VLAN \u6807\u8bb0<\/th>\n<th>\u4f20\u7edf\u5c40\u57df\u7f51<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5206\u5272<\/td>\n<td>\u662f\u7684<\/td>\n<td>\u4e0d<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u6269\u5c55\u6027<\/td>\n<td>\u9ad8\u7684<\/td>\n<td>\u4f4e\u7684<\/td>\n<\/tr>\n<tr>\n<td>\u517c\u5bb9\u6027<\/td>\n<td>\u9ad8\u7684<\/td>\n<td>\u5404\u4e0d\u76f8\u540c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u4e0e VLAN \u6807\u8bb0\u76f8\u5173\u7684\u672a\u6765\u89c2\u70b9\u548c\u6280\u672f<\/h2>\n<p>\u968f\u7740\u7f51\u7edc\u6280\u672f\u7684\u8fdb\u6b65\uff0cVLAN \u6807\u8bb0\u9884\u8ba1\u5c06\u5728\u4ee5\u4e0b\u65b9\u9762\u53d1\u5c55\uff1a<\/p>\n<ul>\n<li><strong>\u4e0eSDN\u96c6\u6210<\/strong>\uff1a\u5bf9 VLAN \u8fdb\u884c\u66f4\u5f3a\u5927\u7684\u81ea\u52a8\u5316\u548c\u63a7\u5236\u3002<\/li>\n<li><strong>\u52a0\u5f3a\u5b89\u5168\u63aa\u65bd<\/strong>\uff1a\u5f00\u53d1\u7528\u4e8e VLAN \u7ba1\u7406\u7684\u65b0\u5b89\u5168\u529f\u80fd\u3002<\/li>\n<\/ul>\n<h2>\u5982\u4f55\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5c06\u5176\u4e0e VLAN \u6807\u8bb0\u5173\u8054<\/h2>\n<p>\u4ee3\u7406\u670d\u52a1\u5668\uff08\u5982 OneProxy \u63d0\u4f9b\u7684\u4ee3\u7406\u670d\u52a1\u5668\uff09\u53ef\u4ee5\u5728 VLAN \u5185\u5de5\u4f5c\uff0c\u4ee5\u63d0\u9ad8\u5b89\u5168\u6027\u548c\u6027\u80fd\u3002\u901a\u8fc7\u4f7f\u7528 VLAN \u6807\u8bb0\uff0c\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u6709\u6548\u5730\u5f15\u5bfc\u6d41\u91cf\uff0c\u786e\u4fdd\u4e0d\u540c VLAN \u4e0a\u7684\u7528\u6237\u53ef\u4ee5\u8bbf\u95ee\u6240\u9700\u7684\u8d44\u6e90\uff0c\u540c\u65f6\u4fdd\u6301\u5b89\u5168\u6027\u3002<\/p>\n<h2>\u76f8\u5173\u94fe\u63a5<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.ieee.org\" target=\"_new\" rel=\"noopener nofollow\">IEEE 802.1Q \u6807\u51c6<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/cn\/\" target=\"_new\" rel=\"noopener\">OneProxy \u670d\u52a1\u548c VLAN \u96c6\u6210<\/a><\/li>\n<li><a href=\"https:\/\/www.cisco.com\" target=\"_new\" rel=\"noopener nofollow\">Cisco \u7684 VLAN \u6807\u8bb0\u6307\u5357<\/a><\/li>\n<\/ul>\n<p>\u4e0a\u8ff0\u8d44\u6e90\u63d0\u4f9b\u4e86\u6709\u5173 VLAN \u6807\u8bb0\u3001\u5176\u5e94\u7528\u7a0b\u5e8f\u53ca\u5176\u4e0e OneProxy \u7b49\u4ee3\u7406\u670d\u52a1\u5668\u96c6\u6210\u7684\u5168\u9762\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>","protected":false},"featured_media":479549,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479548","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>VLAN Tagging<\/mark>","faq_items":[{"question":"What is VLAN tagging, and why is it important?","answer":"<p>VLAN tagging is a network protocol that allows multiple Virtual Local Area Networks (VLANs) to share the same physical network by inserting additional information within the Ethernet frame to identify the VLAN the frame belongs to. It is essential for enhancing network efficiency, security, and ease of management.<\/p>"},{"question":"What is the history of VLAN tagging?","answer":"<p>VLAN tagging was first introduced in the IEEE 802.1Q standard in 1998. It was developed to enable isolation of network traffic within a single physical network, leading to improved security and simplified network management.<\/p>"},{"question":"How does VLAN tagging work?","answer":"<p>VLAN tagging adds a special header to the Ethernet frame, containing information such as Tag Protocol Identifier (TPID), Priority Code Point (PCP), Canonical Format Identifier (CFI), and VLAN Identifier (VID). Network switches use this information to route the frame correctly within the network.<\/p>"},{"question":"What are the key features of VLAN tagging?","answer":"<p>The key features of VLAN tagging include flexibility in creating virtual networks within the same physical infrastructure, scalability to facilitate growth by adding new VLANs, and interoperability that ensures compatibility between different devices and platforms.<\/p>"},{"question":"What types of VLAN tagging exist?","answer":"<p>VLAN tagging includes Untagged, Single-Tagged, and Double-Tagged frames. Untagged frames have no VLAN tags, Single-Tagged frames include one VLAN tag, and Double-Tagged frames carry two VLAN tags, often referred to as Q-in-Q tagging.<\/p>"},{"question":"How is VLAN tagging used, and what are some common problems and solutions?","answer":"<p>VLAN tagging is used for creating virtual networks and enhancing security by segregating traffic. Common problems may include misconfiguration and compatibility issues, with solutions focusing on proper planning, management, and ensuring standard compliance.<\/p>"},{"question":"What are the perspectives and future technologies related to VLAN tagging?","answer":"<p>Future perspectives related to VLAN tagging include its integration with Software-Defined Networking (SDN) for more robust automation and control, and the development of enhanced security measures for VLAN management.<\/p>"},{"question":"How can proxy servers like OneProxy be associated with VLAN tagging?","answer":"<p>Proxy servers like OneProxy can work within VLANs to improve security and performance. By utilizing VLAN tagging, a proxy server can efficiently direct traffic, allowing users on different VLANs to access needed resources while maintaining security.<\/p>"},{"question":"Where can I find more information about VLAN tagging?","answer":"<p>You can find more detailed information about VLAN tagging through resources like the <a href=\"https:\/\/www.ieee.org\" target=\"_new\">IEEE 802.1Q Standard<\/a>, <a href=\"https:\/\/www.oneproxy.pro\" target=\"_new\">OneProxy Services and VLAN Integration<\/a>, and <a href=\"https:\/\/www.cisco.com\" target=\"_new\">Cisco's VLAN Tagging Guide<\/a>.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/479548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/479548\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/479549"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=479548"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}