{"id":108671,"date":"2026-09-22T11:08:44","date_gmt":"2026-09-22T03:08:44","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/108671.html"},"modified":"2026-09-22T11:08:44","modified_gmt":"2026-09-22T03:08:44","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e6%9c%89%e7%9a%84%e7%ba%bf%e8%b7%af%e8%b7%91%e4%b8%8d%e4%ba%86-pcdn","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/108671.html","title":{"rendered":"\u4e3a\u4ec0\u4e48\u6709\u7684\u7ebf\u8def\u8dd1\u4e0d\u4e86 PCDN"},"content":{"rendered":"<h3>1. \u5f15\u8a00<\/h3>\n<p>PCDN&#xff08;P2P CDN&#xff09;\u901a\u8fc7\u8c03\u52a8\u7528\u6237\u4fa7\u95f2\u7f6e\u4e0a\u884c\u5e26\u5bbd\u6765\u5206\u62c5\u5185\u5bb9\u5206\u53d1\u538b\u529b&#xff0c;\u7406\u8bba\u4e0a\u53ea\u8981\u8bbe\u5907\u5728\u7ebf\u3001\u7f51\u7edc\u53ef\u8fbe\u5c31\u80fd\u53c2\u4e0e\u3002\u4f46\u5b9e\u9645\u90e8\u7f72\u4e2d&#xff0c;\u5f88\u591a\u7528\u6237\u53d1\u73b0\u81ea\u5df1\u7684\u7ebf\u8def\u6839\u672c\u8dd1\u4e0d\u8d77\u6765&#xff0c;\u751a\u81f3\u88ab\u5e73\u53f0\u5224\u5b9a\u4e3a\u4e0d\u5408\u683c\u8282\u70b9\u3002\u672c\u6587\u4ece\u7f51\u7edc\u7c7b\u578b\u3001\u8fd0\u8425\u5546\u7b56\u7565\u3001\u8bbe\u5907\u73af\u5883\u548c\u5e73\u53f0\u89c4\u5219\u56db\u4e2a\u7ef4\u5ea6&#xff0c;\u68b3\u7406\u5bfc\u81f4\u7ebf\u8def\u65e0\u6cd5\u8dd1 PCDN \u7684\u5e38\u89c1\u539f\u56e0\u3002<\/p>\n<h3>\u5173\u952e\u672f\u8bed\u901f\u67e5\u8868<\/h3>\n<p>\u4e3a\u65b9\u4fbf\u9605\u8bfb&#xff0c;\u4e0b\u8868\u6c47\u603b\u4e86\u672c\u6587\u6d89\u53ca\u7684\u6838\u5fc3\u672f\u8bed\u53ca\u5176\u7b80\u8981\u5b9a\u4e49&#xff0c;\u5e76\u6ce8\u660e\u9996\u6b21\u51fa\u73b0\u7684\u7ae0\u8282\u4f4d\u7f6e\u3002<\/p>\n<table>\n<tr>\u672f\u8bed\u7b80\u8981\u5b9a\u4e49\u9996\u6b21\u51fa\u73b0\u4f4d\u7f6e<\/tr>\n<tbody>\n<tr>\n<td>PCDN<\/td>\n<td>P2P CDN&#xff0c;\u901a\u8fc7\u8c03\u52a8\u7528\u6237\u4fa7\u95f2\u7f6e\u4e0a\u884c\u5e26\u5bbd\u6765\u5206\u62c5\u5185\u5bb9\u5206\u53d1\u538b\u529b\u7684\u5206\u5e03\u5f0f\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\u3002<\/td>\n<td>\u7b2c 1 \u8282\u300c\u5f15\u8a00\u300d<\/td>\n<\/tr>\n<tr>\n<td>CGNAT<\/td>\n<td>\u8fd0\u8425\u5546\u7ea7 NAT&#xff08;\u5927\u5185\u7f51&#xff09;&#xff0c;\u8fd0\u8425\u5546\u5728\u57ce\u57df\u7f51\u51fa\u53e3\u505a\u5730\u5740\u8f6c\u6362&#xff0c;\u7528\u6237\u62ff\u4e0d\u5230\u516c\u7f51 IPv4 \u5730\u5740\u3002<\/td>\n<td>\u7b2c 2 \u8282\u300c\u7f51\u7edc\u7c7b\u578b\u4e0e\u516c\u7f51\u53ef\u8fbe\u6027\u300d<\/td>\n<\/tr>\n<tr>\n<td>NAT \u7c7b\u578b&#xff08;\u9525\u578b\/\u5bf9\u79f0\u578b&#xff09;<\/td>\n<td>\u63cf\u8ff0 NAT \u8bbe\u5907\u5bf9\u5916\u6620\u5c04\u89c4\u5219\u7684\u5206\u7c7b\u3002\u9525\u578b&#xff08;Full Cone\u3001Restricted Cone\u3001Port Restricted Cone&#xff09;\u6253\u6d1e\u6210\u529f\u7387\u8f83\u9ad8&#xff1b;\u5bf9\u79f0\u578b&#xff08;Symmetric&#xff09;\u6bcf\u6b21\u8fde\u63a5\u4f7f\u7528\u4e0d\u540c\u6620\u5c04\u7aef\u53e3&#xff0c;P2P \u6253\u6d1e\u6210\u529f\u7387\u6781\u4f4e\u3002<\/td>\n<td>\u7b2c 4 \u8282\u300c\u8bbe\u5907\u4e0e\u7f51\u7edc\u73af\u5883\u300d<\/td>\n<\/tr>\n<tr>\n<td>UPnP<\/td>\n<td>\u901a\u7528\u5373\u63d2\u5373\u7528\u534f\u8bae&#xff0c;\u53ef\u8ba9\u8bbe\u5907\u81ea\u52a8\u5728\u8def\u7531\u5668\u4e0a\u5f00\u653e\u7aef\u53e3\u6620\u5c04&#xff0c;\u4fbf\u4e8e\u5916\u90e8\u8fde\u63a5\u8fdb\u5165\u5185\u7f51\u8bbe\u5907\u3002<\/td>\n<td>\u7b2c 4 \u8282\u300c\u8bbe\u5907\u4e0e\u7f51\u7edc\u73af\u5883\u300d<\/td>\n<\/tr>\n<tr>\n<td>DPI<\/td>\n<td>\u6df1\u5ea6\u5305\u68c0\u6d4b&#xff0c;\u8fd0\u8425\u5546\u7528\u4e8e\u8bc6\u522b\u6d41\u91cf\u7279\u5f81\u7684\u6280\u672f&#xff0c;\u53ef\u636e\u6b64\u5bf9\u7591\u4f3c PCDN \u6d41\u91cf\u8fdb\u884c\u9650\u901f\u3001\u65ad\u6d41\u6216\u5c01\u7981\u3002<\/td>\n<td>\u7b2c 3 \u8282\u300c\u8fd0\u8425\u5546\u7b56\u7565\u9650\u5236\u300d<\/td>\n<\/tr>\n<tr>\n<td>IPv6 \u56de\u6e90<\/td>\n<td>\u5e73\u53f0\u901a\u8fc7 IPv6 \u5730\u5740\u76f4\u63a5\u8bbf\u95ee\u8282\u70b9\u8bbe\u5907\u8fdb\u884c\u5185\u5bb9\u56de\u6e90&#xff0c;\u53ef\u7ed5\u8fc7 IPv4 \u516c\u7f51\u5730\u5740\u4e0d\u8db3\u7684\u9650\u5236\u3002<\/td>\n<td>\u7b2c 2 \u8282\u300c\u7f51\u7edc\u7c7b\u578b\u4e0e\u516c\u7f51\u53ef\u8fbe\u6027\u300d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2. \u7f51\u7edc\u7c7b\u578b\u4e0e\u516c\u7f51\u53ef\u8fbe\u6027<\/h3>\n<p>PCDN \u7684\u6838\u5fc3\u662f\u8ba9\u5176\u4ed6\u8282\u70b9\u80fd\u4e3b\u52a8\u8fde\u5230\u4f60\u7684\u8bbe\u5907&#xff0c;\u56e0\u6b64\u7ebf\u8def\u662f\u5426\u5177\u5907\u516c\u7f51\u80fd\u529b\u662f\u9996\u8981\u95e8\u69db\u3002<\/p>\n<ul>\n<li>\u5927\u5185\u7f51&#xff08;CGNAT&#xff09;&#xff1a;\u8fd0\u8425\u5546\u5728\u57ce\u57df\u7f51\u51fa\u53e3\u505a\u4e86 NAT&#xff0c;\u7528\u6237\u62ff\u4e0d\u5230\u516c\u7f51 IPv4 \u5730\u5740&#xff0c;\u5916\u90e8\u8282\u70b9\u65e0\u6cd5\u4e3b\u52a8\u53d1\u8d77\u8fde\u63a5&#xff0c;PCDN \u8c03\u5ea6\u57fa\u672c\u5931\u6548\u3002<\/li>\n<li>IPv6 \u7f3a\u5931&#xff1a;\u90e8\u5206\u5e73\u53f0\u5df2\u652f\u6301 IPv6 \u56de\u6e90&#xff0c;\u82e5\u7ebf\u8def\u6ca1\u6709 IPv6 \u5730\u5740\u6216\u8def\u7531\u5668\u672a\u5f00\u542f IPv6&#xff0c;\u4f1a\u76f4\u63a5\u5931\u53bb\u4e00\u6279\u8c03\u5ea6\u673a\u4f1a\u3002<\/li>\n<li>\u7aef\u53e3\u53d7\u9650&#xff1a;\u5373\u4f7f\u6709\u516c\u7f51 IP&#xff0c;\u8fd0\u8425\u5546\u5c01\u9501\u4e86\u5e38\u7528\u7aef\u53e3&#xff08;\u5982 80\u3001443\u30018080&#xff09;&#xff0c;\u4e5f\u4f1a\u5bfc\u81f4\u8282\u70b9\u65e0\u6cd5\u6b63\u5e38\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u3002<\/li>\n<\/ul>\n<h3>3. \u8fd0\u8425\u5546\u7b56\u7565\u9650\u5236<\/h3>\n<p>\u8fd0\u8425\u5546\u5bf9 PCDN \u7684\u6001\u5ea6\u76f4\u63a5\u5f71\u54cd\u7ebf\u8def\u53ef\u7528\u6027&#xff0c;\u8fd9\u4e5f\u662f\u6700\u5e38\u89c1\u7684\u201c\u8dd1\u4e0d\u4e86\u201d\u539f\u56e0\u3002<\/p>\n<ul>\n<li>\u4e0a\u884c\u5e26\u5bbd\u9650\u901f&#xff1a;\u5bb6\u5bbd\u5957\u9910\u7684\u4e0a\u884c\u5e26\u5bbd\u901a\u5e38\u8fdc\u5c0f\u4e8e\u4e0b\u884c&#xff0c;\u5373\u4f7f\u8bbe\u5907\u5728\u8dd1&#xff0c;\u5b9e\u9645\u8d21\u732e\u7684\u4e0a\u884c\u6d41\u91cf\u4e5f\u6781\u5176\u6709\u9650\u3002<\/li>\n<li>\u8fde\u63a5\u6570\u9650\u5236&#xff1a;\u90e8\u5206\u8fd0\u8425\u5546\u5bf9\u5355\u6761\u5bb6\u5bbd\u7ebf\u8def\u7684\u5e76\u53d1\u8fde\u63a5\u6570\u505a\u4e86\u9650\u5236&#xff0c;PCDN \u9700\u8981\u5927\u91cf\u77ed\u8fde\u63a5&#xff0c;\u5bb9\u6613\u88ab\u6390\u65ad\u6216\u964d\u901f\u3002<\/li>\n<li>\u534f\u8bae\u8bc6\u522b\u4e0e\u5c01\u7981&#xff1a;\u8fd0\u8425\u5546\u901a\u8fc7 DPI \u8bc6\u522b PCDN \u6d41\u91cf\u7279\u5f81&#xff0c;\u5bf9\u7591\u4f3c\u8282\u70b9\u8fdb\u884c\u9650\u901f\u3001\u65ad\u6d41\u751a\u81f3\u5c01\u7981\u5904\u7406\u3002<\/li>\n<li>\u5546\u4e1a\u5bbd\u5e26\u4e0e\u5bb6\u5bbd\u5dee\u5f02&#xff1a;\u5546\u4e1a\u5bbd\u5e26\u867d\u7136\u4e0a\u884c\u66f4\u5927&#xff0c;\u4f46\u8d44\u8d39\u9ad8\u3001\u5408\u540c\u6761\u6b3e\u4e25\u683c&#xff0c;\u90e8\u5206\u5e73\u53f0\u4e5f\u4e0d\u63a5\u53d7\u5546\u4e1a IP \u6bb5\u3002<\/li>\n<\/ul>\n<table>\n<tr>\u5bf9\u6bd4\u7ef4\u5ea6\u5bb6\u5ead\u5bbd\u5e26\u5546\u4e1a\u5bbd\u5e26<\/tr>\n<tbody>\n<tr>\n<td>\u4e0a\u884c\u5e26\u5bbd<\/td>\n<td>\u901a\u5e38\u8f83\u5c0f&#xff0c;\u591a\u4e3a\u4e0b\u884c\u5e26\u5bbd\u7684 1\/10 \u751a\u81f3\u66f4\u4f4e<\/td>\n<td>\u4e0a\u884c\u5e26\u5bbd\u66f4\u5927&#xff0c;\u53ef\u63d0\u4f9b\u5bf9\u7b49\u6216\u63a5\u8fd1\u5bf9\u7b49\u7684\u4e0a\u4e0b\u884c\u901f\u7387<\/td>\n<\/tr>\n<tr>\n<td>\u8d44\u8d39<\/td>\n<td>\u4ef7\u683c\u8f83\u4f4e&#xff0c;\u6309\u6708\u6216\u6309\u5e74\u8ba1\u8d39&#xff0c;\u6027\u4ef7\u6bd4\u9ad8<\/td>\n<td>\u4ef7\u683c\u8f83\u9ad8&#xff0c;\u901a\u5e38\u6309\u5e26\u5bbd\u6216\u56fa\u5b9a\u6708\u79df\u8ba1\u8d39&#xff0c;\u6210\u672c\u660e\u663e\u66f4\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u8fde\u63a5\u6570\u9650\u5236<\/td>\n<td>\u5e76\u53d1\u8fde\u63a5\u6570\u53d7\u9650\u8f83\u591a&#xff0c;\u5927\u91cf\u77ed\u8fde\u63a5\u5bb9\u6613\u88ab\u6390\u65ad\u6216\u964d\u901f<\/td>\n<td>\u5e76\u53d1\u8fde\u63a5\u6570\u9650\u5236\u8f83\u5bbd\u677e&#xff0c;\u66f4\u9002\u5408\u5927\u91cf\u77ed\u8fde\u63a5\u573a\u666f<\/td>\n<\/tr>\n<tr>\n<td>PCDN \u53ef\u7528\u6027<\/td>\n<td>\u53d7\u8fd0\u8425\u5546 DPI \u8bc6\u522b\u548c\u5c01\u7981\u5f71\u54cd\u8f83\u5927&#xff0c;\u4e14\u90e8\u5206\u5e73\u53f0\u4e0d\u63a5\u53d7\u5bb6\u5bbd IP \u6bb5<\/td>\n<td>\u4e0a\u884c\u548c\u8fde\u63a5\u6570\u66f4\u5360\u4f18&#xff0c;\u4f46\u8d44\u8d39\u9ad8\u3001\u5408\u540c\u6761\u6b3e\u4e25\u683c&#xff0c;\u90e8\u5206\u5e73\u53f0\u540c\u6837\u4e0d\u63a5\u53d7\u5546\u4e1a IP \u6bb5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u603b\u7ed3&#xff1a;\u5982\u679c\u8ffd\u6c42\u7a33\u5b9a\u8dd1\u91cf\u548c\u66f4\u5bbd\u677e\u7684\u8fde\u63a5\u6570\u9650\u5236&#xff0c;\u5546\u4e1a\u5bbd\u5e26\u5728\u6280\u672f\u4e0a\u66f4\u5360\u4f18&#xff1b;\u4f46\u8003\u8651\u5230\u8d44\u8d39\u3001\u5408\u540c\u6761\u6b3e\u4ee5\u53ca\u90e8\u5206\u5e73\u53f0\u5bf9 IP \u6bb5\u7684\u9650\u5236&#xff0c;\u5bb6\u5ead\u5bbd\u5e26\u5728\u6ee1\u8db3\u516c\u7f51\u53ef\u8fbe\u3001NAT 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\u65e0\u6cd5\u652f\u6491\u5927\u91cf\u5e76\u53d1\u8fde\u63a5\u548c\u7f13\u5b58\u8bfb\u5199&#xff0c;\u5bfc\u81f4\u8282\u70b9\u9891\u7e41\u6389\u7ebf\u3002<\/li>\n<li>\u65e0\u7ebf\u7ec4\u7f51&#xff1a;Wi-Fi \u4e2d\u7ee7\u3001\u7535\u529b\u732b\u7b49\u94fe\u8def\u6296\u52a8\u5927\u3001\u5ef6\u8fdf\u9ad8&#xff0c;\u4f1a\u4e25\u91cd\u5f71\u54cd\u8282\u70b9\u7a33\u5b9a\u6027\u3002<\/li>\n<\/ul>\n<h3>5. \u5e73\u53f0\u8c03\u5ea6\u4e0e\u8282\u70b9\u8d28\u91cf\u8981\u6c42<\/h3>\n<p>\u5373\u4f7f\u7ebf\u8def\u6761\u4ef6\u8fbe\u6807&#xff0c;\u5e73\u53f0\u4fa7\u4e5f\u53ef\u80fd\u56e0\u4e3a\u8282\u70b9\u8d28\u91cf\u8bc4\u4f30\u4e0d\u901a\u8fc7\u800c\u4e0d\u5206\u914d\u6d41\u91cf\u3002<\/p>\n<ul>\n<li>\u5728\u7ebf\u7387\u8981\u6c42&#xff1a;\u5e73\u53f0\u8981\u6c42 7\u00d724 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