{"id":1116,"date":"2026-07-23T18:15:33","date_gmt":"2026-07-23T10:15:33","guid":{"rendered":"https:\/\/www.suannai.link\/blog\/%e6%b5%b7%e5%a4%96%e7%bd%91%e7%ab%99%e8%ae%bf%e9%97%ae%e9%80%9f%e5%ba%a6%e6%85%a2%e6%80%8e%e4%b9%88%e4%bc%98%e5%8c%96%ef%bc%9a%e4%bb%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e5%88%b0%e7%ba%bf%e8%b7%af%e7%9a%84\/"},"modified":"2026-07-23T18:15:33","modified_gmt":"2026-07-23T10:15:33","slug":"%e6%b5%b7%e5%a4%96%e7%bd%91%e7%ab%99%e8%ae%bf%e9%97%ae%e9%80%9f%e5%ba%a6%e6%85%a2%e6%80%8e%e4%b9%88%e4%bc%98%e5%8c%96%ef%bc%9a%e4%bb%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e5%88%b0%e7%ba%bf%e8%b7%af%e7%9a%84","status":"publish","type":"post","link":"https:\/\/www.suannai.link\/blog\/%e6%b5%b7%e5%a4%96%e7%bd%91%e7%ab%99%e8%ae%bf%e9%97%ae%e9%80%9f%e5%ba%a6%e6%85%a2%e6%80%8e%e4%b9%88%e4%bc%98%e5%8c%96%ef%bc%9a%e4%bb%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e5%88%b0%e7%ba%bf%e8%b7%af%e7%9a%84\/","title":{"rendered":"\u6d77\u5916\u7f51\u7ad9\u8bbf\u95ee\u901f\u5ea6\u6162\u600e\u4e48\u4f18\u5316\uff1a\u4ece\u5ba2\u6237\u7aef\u5230\u7ebf\u8def\u7684\u6392\u67e5\u4e0e\u63d0\u901f"},"content":{"rendered":"<p>\u5f53\u901a\u8fc7\u4ee3\u7406\u5de5\u5177\u8bbf\u95ee\u6d77\u5916\u7f51\u7ad9\u65f6\uff0c\u9047\u5230\u9875\u9762\u52a0\u8f7d\u7f13\u6162\u3001\u89c6\u9891\u7f13\u51b2\u6216\u8fde\u63a5\u95f4\u6b47\u6027\u4e2d\u65ad\uff0c\u901a\u5e38\u4e0d\u662f\u5355\u4e00\u56e0\u7d20\u5bfc\u81f4\u7684\u3002\u901f\u5ea6\u74f6\u9888\u53ef\u80fd\u51fa\u73b0\u5728\u5ba2\u6237\u7aef\u914d\u7f6e\u3001\u672c\u5730\u7f51\u7edc\u73af\u5883\u3001\u4ee3\u7406\u7ebf\u8def\u8d28\u91cf\u6216\u76ee\u6807\u670d\u52a1\u5668\u8d1f\u8f7d\u7b49\u591a\u4e2a\u73af\u8282\u3002\u8981\u6709\u6548\u4f18\u5316\u8bbf\u95ee\u901f\u5ea6\uff0c\u9700\u8981\u6309\u7167\u4ece\u672c\u5730\u5230\u8fdc\u7aef\u7684\u903b\u8f91\u987a\u5e8f\u8fdb\u884c\u6392\u67e5\uff0c\u5e76\u9488\u5bf9\u6027\u5730\u8c03\u6574\u5ba2\u6237\u7aef\u8bbe\u7f6e\u4e0e\u7ebf\u8def\u9009\u62e9\u7b56\u7565\u3002<\/p>\n<h2>\u672c\u5730\u7f51\u7edc\u73af\u5883\u4e0e\u57fa\u7840\u8fde\u901a\u6027\u6392\u67e5<\/h2>\n<p>\u5728\u8c03\u6574\u590d\u6742\u7684\u4ee3\u7406\u914d\u7f6e\u4e4b\u524d\uff0c\u9996\u5148\u5e94\u6392\u9664\u672c\u5730\u7f51\u7edc\u7684\u57fa\u7840\u95ee\u9898\u3002\u5982\u679c\u672c\u5730\u4e92\u8054\u7f51\u8fde\u63a5\u672c\u8eab\u4e0d\u7a33\u5b9a\uff0c\u4efb\u4f55\u4ee3\u7406\u4f18\u5316\u90fd\u65e0\u6cd5\u663e\u8457\u63d0\u5347\u901f\u5ea6\u3002<\/p>\n<p>\u9996\u5148\u68c0\u67e5<a href=\"https:\/\/www.suannai.link\/blog\/%e5%9b%bd%e5%86%85%e7%bd%91%e7%ab%99%e6%b5%b7%e5%a4%96%e8%ae%bf%e9%97%ae%e5%bb%b6%e8%bf%9f%e9%ab%98%e6%80%8e%e4%b9%88%e5%a4%84%e7%90%86\/\" target=\"_blank\" rel=\"noopener\">\u672c\u5730\u7f51\u7edc\u5ef6\u8fdf<\/a>\u3002\u5728\u547d\u4ee4\u884c\u4e2d\u4f7f\u7528 `ping` \u547d\u4ee4\u6d4b\u8bd5\u672c\u5730\u7f51\u5173\u53ca\u4e3b\u8981\u516c\u5171 DNS \u7684\u54cd\u5e94\u65f6\u95f4\u3002\u5982\u679c\u672c\u5730\u5ef6\u8fdf\u8d85\u8fc7 50 \u6beb\u79d2\u6216\u51fa\u73b0\u4e22\u5305\uff0c\u5efa\u8bae\u91cd\u542f\u5149\u732b\u548c\u8def\u7531\u5668\uff0c\u6216\u8054\u7cfb\u7f51\u7edc\u670d\u52a1\u63d0\u4f9b\u5546\u89e3\u51b3\u7269\u7406\u7ebf\u8def\u95ee\u9898\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u786e\u8ba4\u662f\u5426\u542f\u7528\u4e86 IPv6\u3002\u8bb8\u591a\u6d77\u5916\u7f51\u7ad9\u548c\u4ee3\u7406\u670d\u52a1\u5bf9 IPv6 \u7684\u652f\u6301\u5c1a\u4e0d\u5b8c\u5584\u3002\u5982\u679c\u672c\u5730\u7f51\u7edc\u4f18\u5148\u4f7f\u7528 IPv6 \u8fde\u63a5\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u63e1\u624b\u5931\u8d25\u6216\u901f\u5ea6\u6781\u6162\u3002\u5728\u64cd\u4f5c\u7cfb\u7edf\u7f51\u7edc\u8bbe\u7f6e\u4e2d\uff0c\u6682\u65f6\u7981\u7528 IPv6\uff0c\u5f3a\u5236\u4f7f\u7528 IPv4 \u8fde\u63a5\uff0c\u5f80\u5f80\u80fd\u7acb\u5373\u6539\u5584\u8fde\u63a5\u7a33\u5b9a\u6027\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u68c0\u67e5\u672c\u5730\u9632\u706b\u5899\u548c\u5b89\u5168\u8f6f\u4ef6\u3002\u67d0\u4e9b\u6740\u6bd2\u8f6f\u4ef6\u6216\u7cfb\u7edf\u9632\u706b\u5899\u4f1a\u6df1\u5ea6\u68c0\u6d4b\u4ee3\u7406\u6d41\u91cf\uff0c\u589e\u52a0\u5904\u7406\u5ef6\u8fdf\u3002\u5c1d\u8bd5\u4e34\u65f6\u7981\u7528\u7b2c\u4e09\u65b9\u5b89\u5168\u8f6f\u4ef6\uff0c\u89c2\u5bdf\u901f\u5ea6\u662f\u5426\u6709\u63d0\u5347\uff0c\u4ee5\u786e\u5b9a\u662f\u5426\u4e3a\u672c\u5730\u5b89\u5168\u7b56\u7565\u5bfc\u81f4\u7684\u74f6\u9888\u3002<\/p>\n\n<h2>\u5ba2\u6237\u7aef\u914d\u7f6e\u4e0e\u534f\u8bae\u4f18\u5316<\/h2>\n<p>\u4ee3\u7406\u5ba2\u6237\u7aef\u7684\u8bbe\u7f6e\u76f4\u63a5\u5f71\u54cd\u6570\u636e\u5c01\u88c5\u548c\u89e3\u5305\u7684\u6548\u7387\u3002\u9519\u8bef\u7684\u534f\u8bae\u9009\u62e9\u6216\u53c2\u6570\u914d\u7f6e\u662f\u5bfc\u81f4\u9ad8\u5ef6\u8fdf\u7684\u4e3b\u8981\u539f\u56e0\u3002<\/p>\n<p><strong>\u534f\u8bae\u9009\u62e9<\/strong><br \/>\u4e0d\u540c\u7684\u4f20\u8f93\u534f\u8bae\u5728\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u4e0a\u8868\u73b0\u5dee\u5f02\u5de8\u5927\u3002TCP \u534f\u8bae\u53ef\u9760\u6027\u9ad8\u4f46\u6613\u53d7\u62e5\u585e\u63a7\u5236\u5f71\u54cd\uff0c\u901f\u5ea6\u8f83\u6162\uff1bUDP \u534f\u8bae\uff08\u5982 QUIC \u6216 KCP\uff09\u901f\u5ea6\u8f83\u5feb\u4f46\u53ef\u80fd\u4e22\u5305\u3002\u5bf9\u4e8e\u8ffd\u6c42\u901f\u5ea6\u7684\u573a\u666f\uff0c\u4f18\u5148\u9009\u62e9\u652f\u6301\u591a\u8def\u590d\u7528\uff08Multiplexing\uff09\u7684\u534f\u8bae\uff0c\u5982 HTTP\/3 \u6216 QUIC\uff0c\u5b83\u4eec\u80fd\u66f4\u597d\u5730\u5229\u7528\u7f51\u7edc\u5e26\u5bbd\uff0c\u51cf\u5c11\u63e1\u624b\u6b21\u6570\u3002<\/p>\n<p><strong>\u591a\u8def\u590d\u7528\uff08Mux\uff09<\/strong><br \/>\u5f00\u542f\u591a\u8def\u590d\u7528\u529f\u80fd\u53ef\u4ee5\u5c06\u591a\u4e2a\u8fde\u63a5\u5408\u5e76\u4e3a\u4e00\u4e2a\uff0c\u51cf\u5c11 TCP \u63e1\u624b\u6b21\u6570\u3002\u5728\u5ba2\u6237\u7aef\u8bbe\u7f6e\u4e2d\u542f\u7528 Mux\uff0c\u5e76\u9002\u5f53\u8c03\u6574\u5e76\u53d1\u8fde\u63a5\u6570\uff08\u901a\u5e38\u5efa\u8bae 8-16 \u6761\uff09\u3002\u6ce8\u610f\uff0c\u5e76\u975e\u6240\u6709\u670d\u52a1\u5668\u90fd\u652f\u6301 Mux\uff0c\u82e5\u5f00\u542f\u540e\u8fde\u63a5\u4e0d\u7a33\u5b9a\uff0c\u5e94\u5c1d\u8bd5\u5173\u95ed\u3002<\/p>\n<p><strong>TLS \u914d\u7f6e<\/strong><br \/>\u5982\u679c\u4f7f\u7528\u7684\u662f TLS \u52a0\u5bc6\u4f20\u8f93\uff0c\u68c0\u67e5 TLS \u7248\u672c\u3002\u5f3a\u5236\u4f7f\u7528 TLS 1.3 \u901a\u5e38\u6bd4 TLS 1.2 \u5177\u6709\u66f4\u5feb\u7684\u63e1\u624b\u901f\u5ea6\u548c\u66f4\u597d\u7684\u5b89\u5168\u6027\u3002\u5728\u5ba2\u6237\u7aef\u914d\u7f6e\u4e2d\uff0c\u786e\u4fdd\u672a\u5f3a\u5236\u9501\u5b9a\u8fc7\u65f6\u7684 TLS \u7248\u672c\u3002<\/p>\n<p><strong>MTU \u8bbe\u7f6e<\/strong><br \/>\u6700\u5927\u4f20\u8f93\u5355\u5143\uff08MTU\uff09\u8bbe\u7f6e\u4e0d\u5f53\u4f1a\u5bfc\u81f4\u6570\u636e\u5305\u5206\u7247\uff0c\u589e\u52a0\u5ef6\u8fdf\u3002\u5c1d\u8bd5\u5728\u5ba2\u6237\u7aef\u6216\u7cfb\u7edf\u7f51\u7edc\u8bbe\u7f6e\u4e2d\u8c03\u6574 MTU \u503c\u3002\u901a\u5e38\uff0c\u5c06 MTU \u4ece\u9ed8\u8ba4\u7684 1500 \u964d\u4f4e\u5230 1400 \u6216 1300\uff0c\u53ef\u4ee5\u89e3\u51b3\u56e0\u8def\u5f84 MTU \u53d1\u73b0\uff08PMTUD\uff09\u5931\u8d25\u5bfc\u81f4\u7684\u8fde\u63a5\u5361\u987f\u95ee\u9898\u3002<\/p>\n<h2>\u7ebf\u8def\u9009\u62e9\u4e0e\u8282\u70b9\u7b56\u7565<\/h2>\n<p>\u4ee3\u7406\u7ebf\u8def\u7684\u8d28\u91cf\u662f\u51b3\u5b9a\u8bbf\u95ee\u901f\u5ea6\u7684\u6838\u5fc3\u56e0\u7d20\u3002\u9009\u62e9\u9519\u8bef\u7684\u8282\u70b9\u6216\u7ebf\u8def\u7b56\u7565\uff0c\u5373\u4f7f\u5ba2\u6237\u7aef\u914d\u7f6e\u5b8c\u7f8e\uff0c\u4e5f\u65e0\u6cd5\u83b7\u5f97\u826f\u597d\u4f53\u9a8c\u3002<\/p>\n<p><strong>\u5ef6\u8fdf\u4e0e\u4e22\u5305\u7387\u6d4b\u8bd5<\/strong><br \/>\u4f7f\u7528\u5ba2\u6237\u7aef\u5185\u7f6e\u7684\u5ef6\u8fdf\u6d4b\u8bd5\u529f\u80fd\uff0c\u5bf9\u6240\u6709\u53ef\u7528\u8282\u70b9\u8fdb\u884c Ping \u6d4b\u8bd5\u3002\u4f18\u5148\u9009\u62e9\u5ef6\u8fdf\u4f4e\uff08\u901a\u5e38\u4f4e\u4e8e 100 \u6beb\u79d2\uff09\u3001\u4e22\u5305\u7387\u4f4e\u4e8e 1% \u7684\u8282\u70b9\u3002\u907f\u514d\u9009\u62e9\u5730\u7406\u4f4d\u7f6e\u8fc7\u8fdc\u6216\u7ecf\u8fc7\u590d\u6742\u8def\u7531\u8def\u5f84\u7684\u8282\u70b9\u3002<\/p>\n<p><strong>\u8d1f\u8f7d\u5747\u8861\u4e0e\u81ea\u52a8\u5207\u6362<\/strong><br \/>\u542f\u7528\u5ba2\u6237\u7aef\u7684\u8d1f\u8f7d\u5747\u8861\u6216\u81ea\u52a8\u5207\u6362\u529f\u80fd\u3002\u5f53\u5f53\u524d\u8282\u70b9\u901f\u5ea6\u4e0b\u964d\u6216\u8fde\u63a5\u4e2d\u65ad\u65f6\uff0c\u5de5\u5177\u80fd\u81ea\u52a8\u5207\u6362\u5230\u5907\u7528\u8282\u70b9\uff0c\u4fdd\u6301\u8bbf\u95ee\u8fde\u7eed\u6027\u3002\u6ce8\u610f\uff0c\u9891\u7e41\u5207\u6362\u53ef\u80fd\u5bfc\u81f4\u77ed\u6682\u65ad\u6d41\uff0c\u5efa\u8bae\u8bbe\u7f6e\u5408\u7406\u7684\u5207\u6362\u9608\u503c\u3002<\/p>\n<p><strong>\u4e13\u7ebf\u4e0e\u5171\u4eab\u8282\u70b9<\/strong><br \/>\u533a\u5206\u4e13\u7ebf\u8282\u70b9\u548c\u5171\u4eab\u8282\u70b9\u3002\u4e13\u7ebf\u8282\u70b9\u901a\u5e38\u901f\u5ea6\u66f4\u7a33\u5b9a\u3001\u5ef6\u8fdf\u66f4\u4f4e\uff0c\u4f46\u6210\u672c\u8f83\u9ad8\u3002\u5171\u4eab\u8282\u70b9\u5728\u9ad8\u5cf0\u65f6\u6bb5\u53ef\u80fd\u56e0\u7528\u6237\u8fc7\u591a\u800c\u62e5\u5835\u3002\u5728\u8bbf\u95ee\u9ad8\u5cf0\u65f6\u6bb5\uff0c\u4f18\u5148\u9009\u62e9\u4e13\u7ebf\u6216\u4f4e\u8d1f\u8f7d\u8282\u70b9\u3002<\/p>\n<p><strong>CDN \u4e0e\u8282\u70b9\u7c7b\u578b<\/strong><br \/>\u90e8\u5206\u8282\u70b9\u53ef\u80fd\u9488\u5bf9\u7279\u5b9a CDN \u8fdb\u884c\u4e86\u4f18\u5316\u3002\u5982\u679c\u8bbf\u95ee\u7279\u5b9a\u7f51\u7ad9\u901f\u5ea6\u6162\uff0c\u5c1d\u8bd5\u9009\u62e9\u9760\u8fd1\u8be5\u7f51\u7ad9 CDN \u8282\u70b9\u4f4d\u7f6e\u7684\u670d\u52a1\u5668\uff0c\u6216\u9009\u62e9\u660e\u786e\u6807\u6ce8\u652f\u6301\u8be5\u7f51\u7ad9\u52a0\u901f\u7684\u8282\u70b9\u3002<\/p>\n<h2>\u6d4f\u89c8\u5668\u4e0e\u5e94\u7528\u5c42\u4f18\u5316<\/h2>\n<p>\u5373\u4f7f\u4ee3\u7406\u8fde\u63a5\u901f\u5ea6\u826f\u597d\uff0c\u6d4f\u89c8\u5668\u6216\u5e94\u7528\u5c42\u7684\u8bbe\u7f6e\u4e5f\u53ef\u80fd\u6210\u4e3a\u74f6\u9888\u3002<\/p>\n<p><strong>\u6d4f\u89c8\u5668\u4ee3\u7406\u8bbe\u7f6e<\/strong><br \/>\u786e\u4fdd\u6d4f\u89c8\u5668\u6b63\u786e\u914d\u7f6e\u4e86\u4ee3\u7406\u670d\u52a1\u5668\u5730\u5740\u548c\u7aef\u53e3\u3002\u5bf9\u4e8e\u4f7f\u7528\u7cfb\u7edf\u7ea7\u4ee3\u7406\u7684\u5de5\u5177\uff0c\u68c0\u67e5\u6d4f\u89c8\u5668\u662f\u5426\u8bbe\u7f6e\u4e86\u201c\u4f7f\u7528\u7cfb\u7edf\u4ee3\u7406\u201d\u3002\u5982\u679c\u6d4f\u89c8\u5668\u72ec\u7acb\u914d\u7f6e\u4e86\u4ee3\u7406\uff0c\u786e\u4fdd\u5176\u4e0e\u7cfb\u7edf\u4ee3\u7406\u8bbe\u7f6e\u4e00\u81f4\uff0c\u907f\u514d\u53cc\u91cd\u4ee3\u7406\u6216\u4ee3\u7406\u51b2\u7a81\u3002<\/p>\n<p><strong>HTTP\/2 \u4e0e HTTP\/3 \u652f\u6301<\/strong><br \/>\u5728\u6d4f\u89c8\u5668\u4e2d\u542f\u7528 HTTP\/2 \u548c HTTP\/3 \u652f\u6301\u3002\u8fd9\u4e9b\u534f\u8bae\u80fd\u663e\u8457\u63d0\u5347\u7f51\u9875\u52a0\u8f7d\u901f\u5ea6\uff0c\u7279\u522b\u662f\u5728\u591a\u8d44\u6e90\u52a0\u8f7d\u7684\u573a\u666f\u4e0b\u3002\u5728 Chrome \u7b49\u6d4f\u89c8\u5668\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 `chrome:\/\/net-internals\/#h3` 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