{"id":477794,"date":"2023-08-09T09:20:26","date_gmt":"2023-08-09T09:20:26","guid":{"rendered":""},"modified":"2023-09-05T11:15:26","modified_gmt":"2023-09-05T11:15:26","slug":"lan","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/cn\/wiki\/lan\/","title":{"rendered":"\u5c40\u57df\u7f51"},"content":{"rendered":"<p>LAN \u4ee3\u8868\u5c40\u57df\u7f51\uff0c\u662f\u4e00\u79cd\u57fa\u672c\u7684\u8ba1\u7b97\u673a\u7f51\u7edc\uff0c\u7528\u4e8e\u8fde\u63a5\u6709\u9650\u5730\u7406\u533a\u57df\uff08\u4f8b\u5982\u5bb6\u5ead\u3001\u529e\u516c\u697c\u3001\u5b66\u6821\u6216\u6821\u56ed\uff09\u5185\u7684\u8bbe\u5907\u3002\u5b83\u5141\u8bb8\u8ba1\u7b97\u673a\u3001\u6253\u5370\u673a\u3001\u670d\u52a1\u5668\u548c\u5176\u4ed6\u8bbe\u5907\u6709\u6548\u5730\u901a\u4fe1\u548c\u5171\u4eab\u8d44\u6e90\u3002\u5c40\u57df\u7f51\u5728\u4fc3\u8fdb\u672c\u5730\u73af\u5883\u4e2d\u7684\u6570\u636e\u4f20\u8f93\u3001\u5171\u4eab\u4fe1\u606f\u548c\u5b9e\u73b0\u7528\u6237\u4e4b\u95f4\u7684\u534f\u4f5c\u65b9\u9762\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8 LAN \u7684\u5386\u53f2\u3001\u7ed3\u6784\u3001\u4e3b\u8981\u7279\u5f81\u3001\u7c7b\u578b\u3001\u7528\u9014\u548c\u672a\u6765\u524d\u666f\uff0c\u91cd\u70b9\u662f\u5b83\u4eec\u4e0e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5173\u8054\u3002<\/p>\n<h2>\u5c40\u57df\u7f51\u7684\u5386\u53f2<\/h2>\n<p>\u5c40\u57df\u7f51\u7684\u6982\u5ff5\u8d77\u6e90\u4e8e 20 \u4e16\u7eaa 60 \u5e74\u4ee3\uff0c\u5e76\u5728 20 \u4e16\u7eaa 70 \u5e74\u4ee3\u53d7\u5230\u5e7f\u6cdb\u5173\u6ce8\uff0c\u56e0\u4e3a\u4f01\u4e1a\u548c\u7814\u7a76\u673a\u6784\u5bfb\u6c42\u66f4\u6709\u6548\u5730\u8fde\u63a5\u8ba1\u7b97\u673a\u548c\u5171\u4eab\u6570\u636e\u7684\u65b9\u6cd5\u3002 LAN \u7684\u9996\u6b21\u63d0\u53ca\u53ef\u4ee5\u8ffd\u6eaf\u5230\u82f1\u56fd\u8ba1\u7b97\u673a\u79d1\u5b66\u5bb6 Donald W. Davies \u7684\u5de5\u4f5c\uff0c\u4ed6\u63d0\u51fa\u4e86\u5206\u7ec4\u4ea4\u6362\u4f5c\u4e3a\u6570\u636e\u4f20\u8f93\u624b\u6bb5\u7684\u60f3\u6cd5\u3002\u968f\u540e\uff0cRobert Metcalfe \u5728 Xerox PARC \u4e8e 20 \u4e16\u7eaa 70 \u5e74\u4ee3\u53d1\u660e\u4e86\u4ee5\u592a\u7f51\uff0c\u4e3a\u73b0\u4ee3 LAN \u6280\u672f\u5960\u5b9a\u4e86\u57fa\u7840\u3002<\/p>\n<h2>\u6709\u5173 LAN \u7684\u8be6\u7ec6\u4fe1\u606f<\/h2>\n<p>\u5c40\u57df\u7f51\u901a\u5e38\u5c40\u9650\u4e8e\u4e00\u4e2a\u5f88\u5c0f\u7684\u5730\u7406\u533a\u57df\uff0c\u8303\u56f4\u4ece\u51e0\u7c73\u5230\u51e0\u516c\u91cc\u3002 LAN \u53ef\u4ee5\u662f\u6709\u7ebf\u6216\u65e0\u7ebf\u7684\uff0c\u6709\u7ebf\u8fde\u63a5\u901a\u5e38\u4f7f\u7528\u4ee5\u592a\u7f51\u7535\u7f06\uff0c\u800c\u65e0\u7ebf LAN \u4f7f\u7528\u65e0\u7ebf\u7535\u6ce2\u8fdb\u884c\u901a\u4fe1\u3002 LAN \u7684\u4e3b\u8981\u7ec4\u4ef6\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u8bbe\u5907<\/strong>\uff1a\u8fd9\u4e9b\u662f\u8fde\u63a5\u5230 LAN \u7684\u8ba1\u7b97\u673a\u3001\u6253\u5370\u673a\u3001\u8def\u7531\u5668\u3001\u4ea4\u6362\u673a\u548c\u5176\u4ed6\u652f\u6301\u7f51\u7edc\u7684\u8bbe\u5907\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7f51\u7edc\u63a5\u53e3\u5361 (NIC)<\/strong>\uff1a\u5c40\u57df\u7f51\u4e2d\u7684\u6bcf\u4e2a\u8bbe\u5907\u90fd\u5fc5\u987b\u6709\u4e00\u4e2a\u7f51\u5361\uff0c\u4ee5\u5b9e\u73b0\u8bbe\u5907\u4e0e\u7f51\u7edc\u4e4b\u95f4\u7684\u901a\u4fe1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5f00\u5173<\/strong>\uff1aLAN \u4ea4\u6362\u673a\u5145\u5f53\u4e2d\u4ecb\uff0c\u4fc3\u8fdb\u7f51\u7edc\u5185\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u9ad8\u6548\u4f20\u8f93\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8def\u7531\u5668<\/strong>\uff1a\u5728\u8f83\u5927\u7684 LAN \u4e2d\u6216\u8fde\u63a5\u5230\u5e7f\u57df\u7f51 (WAN) \u65f6\uff0c\u8def\u7531\u5668\u5728\u5f15\u5bfc\u4e0d\u540c LAN \u6216\u4e92\u8054\u7f51\u4e4b\u95f4\u7684\u6570\u636e\u6d41\u91cf\u65b9\u9762\u53d1\u6325\u7740\u5173\u952e\u4f5c\u7528\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u5c40\u57df\u7f51\u5185\u90e8\u7ed3\u6784<\/h2>\n<p>\u5c40\u57df\u7f51\u91c7\u7528\u591a\u79cd\u534f\u8bae\u548c\u6280\u672f\u6765\u786e\u4fdd\u8bbe\u5907\u4e4b\u95f4\u7684\u987a\u7545\u901a\u4fe1\u3002\u6700\u5e38\u89c1\u7684 LAN \u6280\u672f\u662f\u4ee5\u592a\u7f51\uff0c\u5b83\u9075\u5faa IEEE 802.3 \u6807\u51c6\u3002\u4ee5\u592a\u7f51\u4f7f\u7528\u5206\u7ec4\u4ea4\u6362\u67b6\u6784\u548cCSMA\/CD\uff08\u5e26\u51b2\u7a81\u68c0\u6d4b\u7684\u8f7d\u6ce2\u4fa6\u542c\u591a\u8def\u8bbf\u95ee\uff09\u6765\u7ba1\u7406\u6570\u636e\u4f20\u8f93\u5e76\u907f\u514d\u7f51\u7edc\u4e0a\u7684\u6570\u636e\u51b2\u7a81\u3002<\/p>\n<p>\u5f53 LAN \u4e0a\u7684\u8bbe\u5907\u60f3\u8981\u4e0e\u53e6\u4e00\u4e2a\u8bbe\u5907\u901a\u4fe1\u65f6\uff0c\u5b83\u4f1a\u4ee5\u6570\u636e\u5305\u7684\u5f62\u5f0f\u53d1\u9001\u6570\u636e\u3002\u8fd9\u4e9b\u6570\u636e\u5305\u5305\u542b\u53d1\u9001\u8005\u548c\u63a5\u6536\u8005\u7684\u5730\u5740\u4ee5\u53ca\u6570\u636e\u672c\u8eab\u3002\u4ea4\u6362\u673a\u5206\u6790\u76ee\u6807\u5730\u5740\u5e76\u5c06\u6570\u636e\u5305\u8f6c\u53d1\u5230\u9002\u5f53\u7684\u8bbe\u5907\u3002\u5728\u65e0\u7ebf LAN \u4e2d\uff0c\u63a5\u5165\u70b9\u626e\u6f14\u7740\u4e0e\u4ea4\u6362\u673a\u7c7b\u4f3c\u7684\u89d2\u8272\uff0c\u534f\u8c03\u8bbe\u5907\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<h2>\u5c40\u57df\u7f51\u4e3b\u8981\u7279\u6027\u5206\u6790<\/h2>\n<p>LAN \u63d0\u4f9b\u4e86\u51e0\u4e2a\u5173\u952e\u529f\u80fd\uff0c\u4f7f\u5176\u6210\u4e3a\u73b0\u4ee3\u8ba1\u7b97\u73af\u5883\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u9ad8\u6570\u636e\u4f20\u8f93\u7387<\/strong>\uff1aLAN \u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u901a\u5e38\u8303\u56f4\u4ece 10 Mbps \u5230 1 Gbps \u751a\u81f3\u66f4\u9ad8\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u6240\u4f7f\u7528\u7684\u6280\u672f\u548c\u57fa\u7840\u8bbe\u65bd\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4f4e\u5ef6\u8fdf<\/strong>\uff1a\u7531\u4e8e\u8bbe\u5907\u4e4b\u95f4\u7684\u8ddd\u79bb\u6700\u77ed\uff0cLAN \u7684\u5ef6\u8fdf\u8f83\u4f4e\uff0c\u53ef\u5b9e\u73b0\u5b9e\u65f6\u901a\u4fe1\u548c\u5feb\u901f\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8d44\u6e90\u5171\u4eab<\/strong>\uff1aLAN \u5141\u8bb8\u8bbe\u5907\u5171\u4eab\u6253\u5370\u673a\u3001\u5b58\u50a8\u8bbe\u5907\u548c\u4e92\u8054\u7f51\u8fde\u63a5\u7b49\u8d44\u6e90\uff0c\u4ece\u800c\u964d\u4f4e\u6210\u672c\u5e76\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6613\u4e8e\u7ba1\u7406<\/strong>\uff1a LAN \u76f8\u5bf9\u6613\u4e8e\u8bbe\u7f6e\u548c\u7ba1\u7406\uff0c\u4f7f\u5176\u6210\u4e3a\u4e2d\u5c0f\u578b\u7f51\u7edc\u7684\u5b9e\u7528\u9009\u62e9\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5b89\u5168<\/strong>\uff1a\u53ef\u4ee5\u4f7f\u7528\u9632\u706b\u5899\u3001VLAN\uff08\u865a\u62df LAN\uff09\u548c\u52a0\u5bc6\u534f\u8bae\u7b49\u5404\u79cd\u63aa\u65bd\u6765\u4fdd\u62a4 LAN\uff0c\u4ee5\u4fdd\u62a4\u6570\u636e\u5e76\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u5c40\u57df\u7f51\u7c7b\u578b<\/h2>\n<p>LAN \u53ef\u6839\u636e\u5176\u5730\u7406\u8986\u76d6\u8303\u56f4\u3001\u62d3\u6251\u7ed3\u6784\u548c\u6240\u4f7f\u7528\u7684\u6280\u672f\u5206\u4e3a\u4e0d\u540c\u7c7b\u578b\u3002\u6700\u5e38\u89c1\u7684 LAN \u7c7b\u578b\u662f\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u57fa\u4e8e\u5730\u7406\u8986\u76d6\u8303\u56f4<\/strong>:<\/p>\n<ul>\n<li><strong>\u5bb6\u5ead\u5c40\u57df\u7f51<\/strong>\uff1a\u8fde\u63a5\u5bb6\u5ead\u5185\u7684\u8bbe\u5907\uff0c\u5141\u8bb8\u5171\u4eab\u8d44\u6e90\u548c\u4e92\u8054\u7f51\u8bbf\u95ee\u3002<\/li>\n<li><strong>\u4f01\u4e1a\u5c40\u57df\u7f51<\/strong>\uff1a\u7528\u4e8e\u5927\u578b\u7ec4\u7ec7\uff0c\u8fde\u63a5\u591a\u4e2a\u90e8\u95e8\u6216\u5efa\u7b51\u7269\u7684\u8bbe\u5907\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u57fa\u4e8e\u62d3\u6251<\/strong>:<\/p>\n<ul>\n<li><strong>\u603b\u7ebf\u5c40\u57df\u7f51<\/strong>\uff1a\u8bbe\u5907\u901a\u8fc7\u4e2d\u592e\u7535\u7f06\u8fde\u63a5\uff0c\u6570\u636e\u5728\u4e24\u4e2a\u65b9\u5411\u4f20\u8f93\u3002<\/li>\n<li><strong>\u661f\u5c40\u57df\u7f51<\/strong>\uff1a\u8bbe\u5907\u8fde\u63a5\u5230\u4e2d\u592e\u96c6\u7ebf\u5668\u6216\u4ea4\u6362\u673a\uff0c\u4fc3\u8fdb\u66f4\u597d\u7684\u6570\u636e\u6d41\u548c\u66f4\u8f7b\u677e\u7684\u6545\u969c\u6392\u9664\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u57fa\u4e8e\u6240\u4f7f\u7528\u7684\u6280\u672f<\/strong>:<\/p>\n<ul>\n<li><strong>\u4ee5\u592a\u7f51\u5c40\u57df\u7f51<\/strong>\uff1a\u4f7f\u7528\u4ee5\u592a\u7f51\u7ebf\u8fdb\u884c\u6709\u7ebf\u8fde\u63a5\uff0c\u63d0\u4f9b\u9ad8\u901f\u6570\u636e\u4f20\u8f93\u3002<\/li>\n<li><strong>\u65e0\u7ebf\u5c40\u57df\u7f51<\/strong>\uff1a\u5229\u7528\u65e0\u7ebf\u63a5\u5165\u70b9\u548c\u65e0\u7ebf\u7535\u6ce2\u8fdb\u884c\u8bbe\u5907\u8fde\u63a5\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u4e0b\u8868\u603b\u7ed3\u4e86 LAN \u7c7b\u578b\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5c40\u57df\u7f51\u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5bb6\u5ead\u5c40\u57df\u7f51<\/td>\n<td>\u8fde\u63a5\u5bb6\u5ead\u5185\u7684\u8bbe\u5907\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u4f01\u4e1a\u5c40\u57df\u7f51<\/td>\n<td>\u7528\u4e8e\u5927\u578b\u7ec4\u7ec7\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u603b\u7ebf\u5c40\u57df\u7f51<\/td>\n<td>\u8bbe\u5907\u901a\u8fc7\u4e2d\u592e\u7535\u7f06\u8fde\u63a5\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u661f\u5c40\u57df\u7f51<\/td>\n<td>\u8bbe\u5907\u8fde\u63a5\u5230\u4e2d\u592e\u96c6\u7ebf\u5668\/\u4ea4\u6362\u673a\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u4ee5\u592a\u7f51\u5c40\u57df\u7f51<\/td>\n<td>\u4f7f\u7528\u4ee5\u592a\u7f51\u7535\u7f06\u8fdb\u884c\u6709\u7ebf\u8fde\u63a5\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u65e0\u7ebf\u5c40\u57df\u7f51<\/td>\n<td>\u5229\u7528\u65e0\u7ebf\u63a5\u5165\u70b9\u548c\u65e0\u7ebf\u7535\u6ce2\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>LAN \u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>LAN \u5728\u5404\u4e2a\u9886\u57df\u90fd\u6709\u5e94\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u6587\u4ef6\u5171\u4eab<\/strong>\uff1aLAN \u5141\u8bb8\u7528\u6237\u65e0\u7f1d\u5171\u4eab\u6587\u4ef6\u548c\u8d44\u6e90\uff0c\u4ece\u800c\u589e\u5f3a\u534f\u4f5c\u548c\u751f\u4ea7\u529b\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6253\u5370\u5171\u4eab<\/strong>\uff1a\u591a\u4e2a\u7528\u6237\u53ef\u4ee5\u8bbf\u95ee\u548c\u4f7f\u7528\u8fde\u63a5\u5230\u5c40\u57df\u7f51\u7684\u4e00\u53f0\u6253\u5370\u673a\uff0c\u964d\u4f4e\u6253\u5370\u6210\u672c\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8d4c\u535a<\/strong>\uff1aLAN \u6e38\u620f\u80fd\u591f\u4ee5\u6700\u5c0f\u7684\u5ef6\u8fdf\u5b9e\u73b0\u591a\u4eba\u6e38\u620f\u4f53\u9a8c\uff0c\u63d0\u4f9b\u5353\u8d8a\u7684\u6e38\u620f\u73af\u5883\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5185\u8054\u7f51<\/strong>\uff1a\u7ec4\u7ec7\u4f7f\u7528 LAN \u521b\u5efa\u5185\u90e8\u7f51\u7edc\u4ee5\u5b89\u5168\u5730\u5171\u4eab\u4fe1\u606f\u548c\u8d44\u6e90\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u7136\u800c\uff0c\u5c40\u57df\u7f51\u53ef\u80fd\u4f1a\u9047\u5230\u6311\u6218\uff0c\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u5b89\u5168\u98ce\u9669<\/strong>\uff1a\u5c40\u57df\u7f51\u5f88\u5bb9\u6613\u53d7\u5230\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u548c\u6570\u636e\u6cc4\u9732\uff0c\u56e0\u6b64\u9700\u8981\u91c7\u53d6\u5f3a\u6709\u529b\u7684\u5b89\u5168\u63aa\u65bd\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7f51\u7edc\u62e5\u585e<\/strong>\uff1a\u9ad8\u6570\u636e\u6d41\u91cf\u4f1a\u5bfc\u81f4\u62e5\u585e\uff0c\u5bfc\u81f4\u6570\u636e\u4f20\u8f93\u7f13\u6162\u5e76\u964d\u4f4e\u6548\u7387\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u53ef\u6269\u5c55\u6027<\/strong>\uff1a\u6269\u5c55 LAN \u4ee5\u5bb9\u7eb3\u66f4\u591a\u8bbe\u5907\u53ef\u80fd\u9700\u8981\u989d\u5916\u7684\u57fa\u7840\u8bbe\u65bd\u548c\u7ba1\u7406\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u7f51\u7edc\u7ba1\u7406\u5458\u53ef\u4ee5\u5b9e\u65bd\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u9632\u706b\u5899<\/strong>\uff1a\u9632\u6b62\u5916\u90e8\u5a01\u80c1\u548c\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u670d\u52a1\u8d28\u91cf (QoS)<\/strong>\uff1a\u4f18\u5148\u8003\u8651\u7f51\u7edc\u6d41\u91cf\uff0c\u4ee5\u786e\u4fdd\u5173\u952e\u5e94\u7528\u7a0b\u5e8f\u83b7\u5f97\u8db3\u591f\u7684\u5e26\u5bbd\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u865a\u62df LAN (VLAN)<\/strong>\uff1a\u5bf9\u7f51\u7edc\u8fdb\u884c\u5206\u6bb5\u4ee5\u63d0\u9ad8\u5b89\u5168\u6027\u5e76\u51cf\u5c11\u62e5\u585e\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4e3b\u8981\u7279\u70b9\u53ca\u6bd4\u8f83<\/h2>\n<p>\u4ee5\u4e0b\u5217\u51fa\u4e86 LAN \u7684\u4e3b\u8981\u7279\u5f81\u4ee5\u53ca\u4e0e\u7c7b\u4f3c\u672f\u8bed\u7684\u6bd4\u8f83\uff1a<\/p>\n<ol>\n<li>\n<p><strong>LAN \u4e0e WAN\uff08\u5e7f\u57df\u7f51\uff09<\/strong>:<\/p>\n<ul>\n<li>LAN \u8986\u76d6\u6709\u9650\u7684\u5730\u7406\u533a\u57df\uff08\u4f8b\u5982\u5efa\u7b51\u7269\u6216\u6821\u56ed\uff09\uff0c\u800c WAN \u5219\u8de8\u8d8a\u66f4\u5927\u7684\u533a\u57df\uff08\u4f8b\u5982\u57ce\u5e02\u6216\u56fd\u5bb6\uff09\u3002<\/li>\n<li>\u4e0e WAN \u76f8\u6bd4\uff0cLAN \u63d0\u4f9b\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u66f4\u4f4e\u7684\u5ef6\u8fdf\u3002<\/li>\n<li>\u7531\u4e8e\u89c4\u6a21\u8f83\u5c0f\uff0cLAN \u901a\u5e38\u6bd4 WAN \u66f4\u5bb9\u6613\u8bbe\u7f6e\u548c\u7ba1\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>LAN \u4e0e MAN\uff08\u57ce\u57df\u7f51\uff09<\/strong>:<\/p>\n<ul>\n<li>\u5c40\u57df\u7f51\u8986\u76d6\u5efa\u7b51\u7269\u7b49\u8f83\u5c0f\u7684\u533a\u57df\uff0c\u800c\u57ce\u57df\u7f51\u8986\u76d6\u57ce\u5e02\u7b49\u8f83\u5927\u7684\u533a\u57df\u3002<\/li>\n<li>\u57ce\u57df\u7f51\u63d0\u4f9b\u4f4d\u4e8e\u57ce\u5e02\u4e0d\u540c\u90e8\u5206\u7684\u5c40\u57df\u7f51\u4e4b\u95f4\u7684\u8fde\u63a5\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u5c40\u57df\u7f51\u4e0e\u4e92\u8054\u7f51<\/strong>:<\/p>\n<ul>\n<li>LAN \u662f\u8fde\u63a5\u6709\u9650\u533a\u57df\u5185\u8bbe\u5907\u7684\u672c\u5730\u7f51\u7edc\u3002<\/li>\n<li>\u4e92\u8054\u7f51\u662f\u8fde\u63a5\u5168\u7403 LAN \u548c WAN \u7684\u5168\u7403\u7f51\u7edc\uff0c\u63d0\u4f9b\u5bf9\u5927\u91cf\u8d44\u6e90\u548c\u670d\u52a1\u7684\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>\u672a\u6765\u7684\u89c2\u70b9\u548c\u6280\u672f<\/h2>\n<p>\u968f\u7740\u6280\u672f\u7684\u8fdb\u6b65\uff0c\u5c40\u57df\u7f51\u5c06\u4e0d\u65ad\u53d1\u5c55\u4ee5\u6ee1\u8db3\u73b0\u4ee3\u8ba1\u7b97\u65e5\u76ca\u589e\u957f\u7684\u9700\u6c42\u3002\u4e0e LAN \u76f8\u5173\u7684\u4e00\u4e9b\u672a\u6765\u89c2\u70b9\u548c\u6280\u672f\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u66f4\u5feb\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387<\/strong>\uff1a\u4ee5\u592a\u7f51\u548c Wi-Fi \u6280\u672f\u7684\u8fdb\u6b65\u5c06\u4f7f LAN \u80fd\u591f\u5b9e\u73b0\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u652f\u6301\u865a\u62df\u73b0\u5b9e\u548c 4K\/8K \u89c6\u9891\u6d41\u7b49\u65b0\u5174\u5e94\u7528\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7269\u8054\u7f51 (IoT) \u96c6\u6210<\/strong>\uff1a\u5c40\u57df\u7f51\u5c06\u5728\u8fde\u63a5\u548c\u7ba1\u7406\u5927\u91cf\u7269\u8054\u7f51\u8bbe\u5907\u65b9\u9762\u53d1\u6325\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u4fc3\u8fdb\u667a\u80fd\u5bb6\u5c45\u3001\u667a\u80fd\u57ce\u5e02\u548c\u5de5\u4e1a 4.0 \u7684\u53d1\u5c55\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8f6f\u4ef6\u5b9a\u4e49\u7f51\u7edc (SDN)<\/strong>\uff1aSDN\u5c06\u589e\u5f3aLAN\u7684\u7075\u6d3b\u6027\u548c\u7ba1\u7406\u6027\uff0c\u4f7f\u7ba1\u7406\u5458\u80fd\u591f\u66f4\u9ad8\u6548\u3001\u52a8\u6001\u5730\u63a7\u5236\u7f51\u7edc\u8d44\u6e90\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4ee3\u7406\u670d\u52a1\u5668\u53ca\u5176\u4e0e LAN \u7684\u5173\u8054<\/h2>\n<p>\u4ee3\u7406\u670d\u52a1\u5668\u5145\u5f53\u5ba2\u6237\u7aef\uff08\u4f8b\u5982\uff0cLAN \u4e0a\u7684\u8ba1\u7b97\u673a\uff09\u548c\u4e92\u8054\u7f51\u4e4b\u95f4\u7684\u4e2d\u4ecb\u3002\u5b83\u4eec\u53ef\u4ee5\u90e8\u7f72\u5728 LAN \u5185\u6216 LAN \u5916\u3002\u4ee3\u7406\u670d\u52a1\u5668\u548c LAN \u4e4b\u95f4\u7684\u5173\u8054\u5177\u6709\u4ee5\u4e0b\u51e0\u4e2a\u4f18\u70b9\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u589e\u5f3a\u5b89\u5168\u6027<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5145\u5f53\u9632\u706b\u5899\uff0c\u8fc7\u6ee4\u6076\u610f\u6d41\u91cf\u5e76\u4fdd\u62a4 LAN \u514d\u53d7\u5916\u90e8\u5a01\u80c1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5e26\u5bbd\u4f18\u5316<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u7f13\u5b58\u7ecf\u5e38\u8bbf\u95ee\u7684\u5185\u5bb9\uff0c\u51cf\u5c11\u4e92\u8054\u7f51\u5e26\u5bbd\u7684\u4f7f\u7528\u5e76\u63d0\u9ad8\u6574\u4f53\u7f51\u7edc\u6027\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5185\u5bb9\u8fc7\u6ee4<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u9650\u5236\u5bf9\u67d0\u4e9b\u7f51\u7ad9\u6216\u5185\u5bb9\u7c7b\u578b\u7684\u8bbf\u95ee\uff0c\u4f7f\u7ba1\u7406\u5458\u80fd\u591f\u5728 LAN \u5185\u5b9e\u65bd\u4f7f\u7528\u7b56\u7565\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u533f\u540d\u548c\u9690\u79c1<\/strong>\uff1a\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u901a\u8fc7\u9690\u85cf LAN \u7528\u6237\u7684 IP \u5730\u5740\u6765\u4e3a LAN \u7528\u6237\u63d0\u4f9b\u533f\u540d\u6027\uff0c\u4ece\u800c\u589e\u5f3a\u8bbf\u95ee\u4e92\u8054\u7f51\u65f6\u7684\u9690\u79c1\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u76f8\u5173\u94fe\u63a5<\/h2>\n<p>\u6709\u5173 LAN \u7684\u66f4\u591a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u8bbf\u95ee\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n<ol>\n<li>\n<p><a href=\"https:\/\/www.computer.org\/\" target=\"_new\" rel=\"noopener nofollow\">IEEE \u8ba1\u7b97\u673a\u534f\u4f1a<\/a>\uff1a\u4e00\u4e2a\u4e13\u4e1a\u7ec4\u7ec7\uff0c\u62e5\u6709\u4e30\u5bcc\u7684\u7f51\u7edc\u8d44\u6e90\uff0c\u5305\u62ec LAN\u3002<\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.netacad.com\/\" target=\"_new\" rel=\"noopener nofollow\">\u601d\u79d1\u7f51\u7edc\u5b66\u9662<\/a>\uff1a\u63d0\u4f9b\u6709\u5173\u7f51\u7edc\uff08\u5305\u62ec LAN \u6280\u672f\uff09\u7684\u5728\u7ebf\u8bfe\u7a0b\u548c\u6559\u80b2\u6750\u6599\u3002<\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/searchnetworking.techtarget.com\/\" target=\"_new\" rel=\"noopener nofollow\">\u79d1\u6280\u76ee\u6807<\/a>\uff1a\u4e00\u4e2a\u4ee5\u7f51\u7edc\u4e3a\u4e2d\u5fc3\u7684\u7efc\u5408\u6027\u7f51\u7ad9\uff0c\u6db5\u76d6\u5c40\u57df\u7f51\u548c\u76f8\u5173\u6280\u672f\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u603b\u4e4b\uff0c\u5c40\u57df\u7f51\u662f\u73b0\u4ee3\u8ba1\u7b97\u73af\u5883\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u53ef\u5b9e\u73b0\u5c40\u90e8\u533a\u57df\u5185\u7684\u65e0\u7f1d\u901a\u4fe1\u548c\u8d44\u6e90\u5171\u4eab\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u8fdb\u6b65\u548c\u5bf9\u9ad8\u901f\u8fde\u63a5\u7684\u9700\u6c42\u4e0d\u65ad\u589e\u957f\uff0c\u5c40\u57df\u7f51\u5c06\u5728\u5851\u9020\u7f51\u7edc\u548c\u4e92\u8054\u7f51\u63a5\u5165\u7684\u672a\u6765\u65b9\u9762\u53d1\u6325\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u4ee3\u7406\u670d\u52a1\u5668\u4e0e LAN \u7684\u96c6\u6210\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e86\u5b83\u4eec\u7684\u529f\u80fd\uff0c\u4e3a LAN \u7528\u6237\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u3001\u5e26\u5bbd\u4f18\u5316\u548c\u5185\u5bb9\u8fc7\u6ee4\u529f\u80fd\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u5c40\u57df\u7f51\u5c06\u7ee7\u7eed\u5904\u4e8e\u9ad8\u6548\u6570\u636e\u901a\u4fe1\u548c\u8d44\u6e90\u5171\u4eab\u7684\u524d\u6cbf\uff0c\u4e3a\u4e2a\u4eba\u548c\u4e13\u4e1a\u73af\u5883\u4e2d\u7684\u7528\u6237\u63d0\u4f9b\u652f\u6301\u3002<\/p>","protected":false},"featured_media":468751,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477794","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>LAN (Local Area Network)<\/mark>","faq_items":[{"question":"What is a LAN (Local Area Network)?","answer":"<p>A LAN, or Local Area Network, is a computer network that connects devices within a limited geographic area, such as a home, office building, school, or campus. It enables these devices to communicate and share resources efficiently.<\/p>"},{"question":"How did LANs originate?","answer":"<p>The concept of LANs originated in the 1960s and gained attention in the 1970s as businesses sought ways to connect computers and share data more efficiently. Ethernet, invented in the 1970s by Robert Metcalfe, laid the foundation for modern LAN technology.<\/p>"},{"question":"How does a LAN work?","answer":"<p>LANs use protocols like Ethernet to facilitate data communication. Devices on the network, such as computers and printers, are connected to switches, which efficiently transfer data between them.<\/p>"},{"question":"What are the key features of LANs?","answer":"<p>LANs offer high data transfer rates, low latency, resource sharing, ease of management, and security measures like firewalls and encryption.<\/p>"},{"question":"What types of LANs exist?","answer":"<p>There are several types of LANs, including:<\/p><ul><li>Home LANs, connecting devices within a household.<\/li><li>Enterprise LANs, used in large organizations across multiple departments or buildings.<\/li><li>Bus LANs, where devices are connected along a central cable.<\/li><li>Star LANs, with devices connecting to a central hub or switch.<\/li><li>Ethernet LANs, using Ethernet cables for wired connections.<\/li><li>Wi-Fi LANs, utilizing wireless access points and radio waves.<\/li><\/ul>"},{"question":"How are LANs used, and what problems can occur?","answer":"<p>LANs are used for file and print sharing, gaming, and creating intranets in organizations. Problems can include security risks, network congestion, and scalability issues, but solutions like firewalls, QoS, and VLANs can address them.<\/p>"},{"question":"How do LANs compare with WANs and MANs?","answer":"<p>LANs cover a limited geographic area, while WANs span larger regions. LANs offer higher data transfer rates and are easier to manage than WANs. MANs, on the other hand, cover larger areas like cities.<\/p>"},{"question":"What does the future hold for LANs?","answer":"<p>LANs will continue to evolve with faster data transfer rates, IoT integration, and SDN. They will play a vital role in connecting IoT devices and contributing to smart homes, smart cities, and Industry 4.0.<\/p>"},{"question":"How are proxy servers associated with LANs?","answer":"<p>Proxy servers act as intermediaries between LAN clients and the internet, providing enhanced security, bandwidth optimization, and content filtering for LAN users.<\/p>"},{"question":"Where can I find more information about LANs?","answer":"<p>For more information, you can visit resources like IEEE Computer Society, Cisco Networking Academy, and TechTarget, which offer extensive information on networking and LAN technologies.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/477794","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\/477794\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/468751"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=477794"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}