{"id":68839,"date":"2026-03-18T10:57:03","date_gmt":"2026-03-18T02:57:03","guid":{"rendered":"https:\/\/www.dataplugs.com\/packet-fragmentation-high-mtu-causes\/"},"modified":"2026-03-18T10:59:19","modified_gmt":"2026-03-18T02:59:19","slug":"packet-fragmentation-high-mtu-causes","status":"publish","type":"post","link":"https:\/\/www.dataplugs.com\/sc\/packet-fragmentation-high-mtu-causes\/","title":{"rendered":"\u4ec0\u4e48\u5bfc\u81f4\u5c01\u5305\u5206\u6bb5\u95ee\u9898\u5728\u9ad8 MTU \u7f51\u7edc\u4e0a\uff1f"},"content":{"rendered":"<div class=\"section-blog-2025\">\n<p>\u9ad8\u5e26\u5bbd\u7f51\u7edc\u4ecd\u7136\u53ef\u4ee5\u8868\u73b0\u4e0d\u7a33\u5b9a\u5f53\u5c01\u5305\u5927\u5c0f\u8d85\u8fc7\u67d0\u4e9b\u94fe\u8def\u5728\u8def\u5f84\u4e0a\u53ef\u4ee5\u5904\u7406\u7684\u9650\u5236\u3002\u5728\u8bb8\u591a\u57fa\u7840\u67b6\u6784\u4e2d\u771f\u6b63\u95ee\u9898\u4e0d\u662f\u901f\u5ea6\u800c\u662f\u5c01\u5305\u5206\u6bb5\u7531 MTU \u8bbe\u7f6e\u95ee\u9898\u5728\u4e0d\u540c\u7f51\u7edc\u533a\u6bb5\u4e4b\u95f4\u5f15\u8d77\u3002<\/p>\n<p>\u5f53\u5c01\u5305\u5927\u4e8e MTU \u5141\u8bb8\u5728\u4e0b\u6e38\u63a5\u53e3\u65f6\uff0c\u8def\u7531\u5668\u5fc5\u987b\u5c06\u5b83\u4eec\u5206\u6bb5\u6216\u76f4\u63a5\u4e22\u5f03\u5b83\u4eec\u3002\u8fd9\u79cd\u60c5\u51b5\u5e38\u89c1\u5728\u4f7f\u7528\u96a7\u9053\u3001overlay \u6216 VPN \u7684\u7f51\u7edc\u4e2d\uff0c\u5728\u90a3\u91cc\u6709\u6548\u5c01\u5305\u5927\u5c0f\u9650\u5236\u901a\u5e38\u6bd4\u9884\u671f\u66f4\u5c0f\u3002<\/p>\n<p>\u7406\u89e3\u4ec0\u4e48\u5bfc\u81f4\u5c01\u5305\u5206\u6bb5\u4ee5\u53ca MTU \u4e0d\u5339\u914d\u7f51\u7edc\u6761\u4ef6\u5982\u4f55\u5f62\u6210\uff0c\u6709\u52a9\u7ef4\u6301\u7a33\u5b9a\u8fde\u63a5\u4e0e\u53ef\u9884\u6d4b\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<h2><strong>\u7406\u89e3 MTU \u548c\u4e3a\u4ec0\u4e48\u5c01\u5305\u5927\u5c0f\u91cd\u8981<\/strong><\/h2>\n<p>\u6700\u5927\u4f20\u8f93\u5355\u5143\u5b9a\u4e49\u6700\u5927\u5c01\u5305\u5927\u5c0f\u53ef\u4ee5\u8de8\u8fc7\u7f51\u7edc\u94fe\u8def\u4f20\u8f93\u800c\u4e0d\u88ab\u5206\u6bb5\u3002\u5728\u5927\u591a\u6570\u4ee5\u592a\u7f51\u7edc\u4e2d\u6807\u51c6 MTU \u662f 1500 bytes\u3002<\/p>\n<p>\u5728\u8fd9\u4e2a\u9650\u5236\u4e4b\u5185\uff0c\u4e00\u90e8\u5206\u5c01\u5305\u7a7a\u95f4\u88ab\u534f\u8bae\u6807\u5934\u4f7f\u7528\u4f8b\u5982 TCP \u548c IP\u3002\u5269\u4f59\u7a7a\u95f4\u627f\u8f7d\u5b9e\u9645\u5e94\u7528\u7a0b\u5e8f\u6570\u636e\u3002<\/p>\n<p>\u95ee\u9898\u5f00\u59cb\u5f53\u5c01\u5305\u9047\u5230 MTU \u66f4\u5c0f\u7684\u7f51\u7edc\u533a\u6bb5\u3002\u5982\u679c\u5c01\u5305\u8d85\u8fc7\u90a3\u4e2a\u9650\u5236\uff0c\u8bbe\u5907\u5fc5\u987b\u5206\u6bb5\u5c01\u5305\u6216\u4e22\u5f03\u5b83\u3002<\/p>\n<p>\u9891\u7e41\u5206\u6bb5\u589e\u52a0\u989d\u5916\u8d1f\u62c5\u5e76\u53ef\u80fd\u51cf\u6162\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u3002<\/p>\n<p>Note: \u5927\u578b\u4f20\u8f93\u8de8\u8d8a\u56fd\u9645\u8def\u7531\u53ef\u80fd\u51fa\u73b0\u541e\u5410\u91cf\u9650\u5236\u5982\u679c TCP \u89c6\u7a97\u5927\u5c0f\u5c0f\u4e8e\u8fde\u63a5\u7684\u5e26\u5bbd\u5ef6\u8fdf\u4e58\u79ef\u3002<\/p>\n<h2><strong>\u5c01\u5305\u5206\u6bb5\u95ee\u9898\u7684\u5e38\u89c1\u539f\u56e0<\/strong><\/h2>\n<p>\u5c01\u5305\u5206\u6bb5\u5f88\u5c11\u56e0\u4e3a\u5355\u4e00\u8bbe\u7f6e\u53d1\u751f\u3002\u5b83\u901a\u5e38\u51fa\u73b0\u5f53\u591a\u4e2a\u7f51\u7edc\u5c42\u4e92\u76f8\u8fd0\u4f5c\u800c\u6bcf\u4e00\u5c42\u6709\u4e0d\u540c\u5c01\u5305\u5927\u5c0f\u9650\u5236\u3002<\/p>\n<p>\u4ee5\u4e0b\u60c5\u51b5\u7ecf\u5e38\u89e6\u53d1\u9ad8 MTU \u7f51\u7edc\u95ee\u9898\u3002<\/p>\n<p><strong>MTU \u4e0d\u5339\u914d\u5728\u7f51\u7edc\u533a\u6bb5\u4e4b\u95f4<\/strong><strong><br \/><\/strong> \u4e00\u4e2a\u5178\u578b MTU \u4e0d\u5339\u914d\u60c5\u51b5\u53d1\u751f\u5f53\u4e24\u4e2a\u8fde\u63a5\u7f51\u7edc\u5141\u8bb8\u4e0d\u540c\u5c01\u5305\u5927\u5c0f\u3002\u4f8b\u5982\u4e00\u53f0\u670d\u52a1\u5668\u63a5\u53e3\u53ef\u80fd\u4f20\u9001\u5c01\u5305\u4e3a 1500 bytes \u7f51\u7edc\uff0c\u800c\u4e0b\u6e38 VPN \u8def\u5f84\u53ea\u652f\u6301 1400 bytes\u3002<\/p>\n<p><strong>\u5c01\u88c5\u6765\u81ea\u96a7\u9053\u6216 overlay<\/strong><strong><br \/><\/strong> \u6280\u672f\u4f8b\u5982 VXLAN\u3001GRE \u6216 IPsec \u4f1a\u589e\u52a0\u989d\u5916\u6807\u5934\u5230\u5c01\u5305\u3002\u8fd9\u4e9b\u6807\u5934\u589e\u52a0\u5c01\u5305\u5927\u5c0f\u5e76\u53ef\u80fd\u63a8\u52a8\u6d41\u91cf\u8d85\u8fc7\u5b9e\u4f53\u94fe\u8def\u7684 MTU \u9650\u5236\u3002<\/p>\n<p><strong>\u5bb9\u5668\u548c\u4e91\u7aef overlay \u7f51\u7edc<\/strong><strong><br \/><\/strong> \u5e73\u53f0\u4f8b\u5982 Kubernetes \u7ecf\u5e38\u4f9d\u8d56 overlay \u7f51\u7edc\u3002\u56e0\u4e3a overlay \u589e\u52a0\u5c01\u88c5\u8d1f\u62c5\uff0c\u53ef\u7528 MTU \u5bf9\u5bb9\u5668\u6d41\u91cf\u53d8\u5f97\u66f4\u5c0f\u3002<\/p>\n<p><strong>VPN \u52a0\u5bc6\u8d1f\u62c5<\/strong><strong><br \/><\/strong> \u52a0\u5bc6\u96a7\u9053\u901a\u5e38\u964d\u4f4e\u53ef\u7528 MTU \u503c\u5230\u5927\u7ea6 1400 bytes\u3002\u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u4ecd\u7136\u4f20\u9001\u5c01\u5305\u5927\u5c0f\u4e3a\u6807\u51c6\u4ee5\u592a\u7f51\u7edc\uff0c\u5206\u6bb5\u4f1a\u5728\u96a7\u9053\u5185\u53d1\u751f\u3002<\/p>\n<p><strong>\u88ab\u963b\u6321 ICMP \u8baf\u606f<\/strong><strong><br \/><\/strong> Path MTU discovery \u4f9d\u8d56 ICMP \u56de\u5e94\u5f53\u5c01\u5305\u592a\u5927\u3002\u5982\u679c\u9632\u706b\u5899\u963b\u6321\u8fd9\u4e9b\u56de\u5e94\uff0c\u4f20\u9001\u7aef\u4f1a\u7ee7\u7eed\u4f20\u9001\u8fc7\u5927\u5c01\u5305\u800c\u5206\u6bb5\u6301\u7eed\u53d1\u751f\u3002<\/p>\n<h2><strong>Path MTU Discovery \u95ee\u9898\u5982\u4f55\u521b\u9020\u9690\u85cf\u6545\u969c<\/strong><\/h2>\n<p>Path MTU discovery \u8bbe\u8ba1\u4e3a\u81ea\u52a8\u627e\u51fa\u6700\u5c0f\u5c01\u5305\u5927\u5c0f\u652f\u6301\u6cbf\u7740\u4e00\u6761\u7f51\u7edc\u8def\u5f84\u3002\u5f53\u5c01\u5305\u8d85\u8fc7\u8bbe\u5907 MTU\uff0c\u8bbe\u5907\u5e94\u8be5\u901a\u77e5\u4f20\u9001\u7aef\u4ee5\u4fbf\u5b83\u964d\u4f4e\u5c01\u5305\u5927\u5c0f\u3002<\/p>\n<p>\u7136\u800c\u5982\u679c ICMP \u56de\u5e94\u88ab\u8fc7\u6ee4\u6216\u5ffd\u7565\uff0c\u8fd9\u4e2a\u56de\u9988\u6c38\u8fdc\u4e0d\u4f1a\u5230\u8fbe\u4f20\u9001\u7aef\u3002\u7ed3\u679c\u662f\u91cd\u4f20\u5faa\u73af\u4e0e\u5206\u6bb5\u6d41\u91cf\u6301\u7eed\u53d1\u751f\u3002<\/p>\n<p>\u5e38\u89c1\u75c7\u72b6\u53ef\u4ee5\u5305\u62ec\uff1a<\/p>\n<p>\u8fde\u63a5\u5bf9\u5c0f\u8bf7\u6c42\u6b63\u5e38\u4f46\u5bf9\u5927\u578b\u6570\u636e\u4f20\u8f93\u5931\u8d25<br \/> \u6587\u4ef6\u4e0a\u4f20\u5728\u4e2d\u9014\u5361\u4f4f<br \/> SSH \u6216\u6570\u636e\u5e93\u8fde\u63a5\u5728\u5927\u91cf\u6570\u636e\u8f93\u51fa\u65f6\u51bb\u7ed3<br \/> \u8de8\u957f\u8ddd\u79bb\u8def\u7531\u5e94\u7528\u6d41\u91cf\u4e0d\u7a33\u5b9a<\/p>\n<p>\u8fd9\u4e9b\u884c\u4e3a\u7ecf\u5e38\u88ab\u8bef\u8ba4\u4e3a\u5e94\u7528\u7a0b\u5e8f\u95ee\u9898\u800c\u5b9e\u9645\u539f\u56e0\u662f path MTU discovery \u95ee\u9898\u3002<\/p>\n<h2><strong>\u5206\u6bb5\u4e0e\u5b83\u5bf9\u6548\u80fd\u7684\u5f71\u54cd<\/strong><\/h2>\n<p>\u5206\u6bb5\u589e\u52a0\u9700\u8981\u5904\u7406\u6570\u636e\u7684\u5de5\u4f5c\u91cf\u5728\u7f51\u7edc\u4e2d\u3002<\/p>\n<p>\u6bcf\u4e00\u4e2a\u7247\u6bb5\u5fc5\u987b\u88ab\u8ffd\u8e2a\u3001\u4f20\u9001\u5e76\u5728\u63a5\u6536\u7aef\u91cd\u65b0\u7ec4\u5408\u3002\u5982\u679c\u4efb\u4f55\u4e00\u4e2a\u7247\u6bb5\u9057\u5931\uff0c\u6574\u4e2a\u5c01\u5305\u5fc5\u987b\u91cd\u65b0\u4f20\u9001\u3002\u8fd9\u589e\u52a0\u5ef6\u8fdf\u5e76\u964d\u4f4e\u6709\u6548\u541e\u5410\u91cf\u3002<\/p>\n<p>IPv6 \u7f51\u7edc\u4f7f\u60c5\u51b5\u66f4\u52a0\u4e25\u683c\u3002\u4e0e IPv4 \u4e0d\u540c\uff0cIPv6 \u8def\u7531\u5668\u4e0d\u5728\u4f20\u8f93\u4e2d\u5206\u6bb5\u5c01\u5305\u3002\u76f8\u53cd\u5b83\u4eec\u4e22\u5f03\u8fc7\u5927\u5c01\u5305\u5e76\u4f9d\u8d56\u4f20\u9001\u7aef\u8c03\u6574\u4f20\u8f93\u5927\u5c0f\u3002<\/p>\n<p>\u8fd9\u79cd\u884c\u4e3a\u4f7f\u6b63\u786e MTU \u89c4\u5212\u5728\u73b0\u4ee3\u57fa\u7840\u67b6\u6784\u4e2d\u7279\u522b\u91cd\u8981\u3002<\/p>\n<h2><strong>\u7f51\u7edc\u5c01\u5305\u5206\u6bb5\u6545\u969c\u6392\u9664<\/strong><\/h2>\n<p>\u8bca\u65ad\u5206\u6bb5\u901a\u5e38\u5f00\u59cb\u4e8e\u8bc6\u522b\u6700\u5927\u5c01\u5305\u5927\u5c0f\u652f\u6301\u6cbf\u7740\u4e00\u6761\u8def\u7531\u3002<\/p>\n<p>\u7ba1\u7406\u5458\u5e38\u4f7f\u7528 ping \u6d4b\u8bd5\u9010\u6b65\u589e\u52a0\u5c01\u5305\u5927\u5c0f\u76f4\u5230\u5206\u6bb5\u53d1\u751f\u3002\u5de5\u5177\u4f8b\u5982 tracepath \u4e5f\u53ef\u4ee5\u663e\u793a path MTU\u3002<\/p>\n<p>\u5c01\u5305\u6355\u6349\u5de5\u5177\u53ef\u80fd\u663e\u793a\u9891\u7e41\u5206\u6bb5\u5c01\u5305\u5728\u7f51\u7edc\u6d41\u91cf\u4e2d\uff0c\u8fd9\u901a\u5e38\u8868\u793a MTU \u8bbe\u7f6e\u95ee\u9898\u5728\u57fa\u7840\u67b6\u6784\u67d0\u5904\u3002<\/p>\n<p>\u5728\u8c03\u67e5\u5206\u6bb5\u95ee\u9898\u65f6\u5de5\u7a0b\u5e08\u901a\u5e38\u68c0\u67e5\uff1a<\/p>\n<p>\u5b9e\u4f53\u63a5\u53e3 MTU \u503c<br \/> \u96a7\u9053\u6216 VPN \u63a5\u53e3\u8bbe\u7f6e<br \/> overlay \u7f51\u7edc\u8bbe\u7f6e<br \/> \u9632\u706b\u5899\u89c4\u5219\u5f71\u54cd ICMP \u6d41\u91cf<\/p>\n<p>\u4fee\u6b63\u8fd9\u4e9b\u4e0d\u4e00\u81f4\u8bbe\u7f6e\u901a\u5e38\u53ef\u4ee5\u89e3\u51b3\u5927\u591a\u6570\u5206\u6bb5\u76f8\u5173\u95ee\u9898\u3002<\/p>\n<p><strong>Tip<\/strong>: \u5982\u679c\u4f60\u7684\u57fa\u7840\u67b6\u6784\u5904\u7406\u5927\u578b\u6587\u4ef6\u4f20\u8f93\u3001\u4e32\u6d41\u6216\u5168\u7403\u5e94\u7528\u6d41\u91cf\uff0c\u7a33\u5b9a\u8def\u7531\u8def\u5f84\u4e0e\u826f\u597d\u4e0a\u6e38\u8fde\u63a5\u540c\u6837\u91cd\u8981\u3002<\/p>\n<h2><strong>\u5982\u4f55\u4fee\u590d\u5c01\u5305\u5206\u6bb5<\/strong><\/h2>\n<p>\u4e00\u65e6\u6839\u672c\u539f\u56e0\u88ab\u8bc6\u522b\uff0c\u51e0\u4e2a\u5b9e\u9645\u8c03\u6574\u53ef\u4ee5\u51cf\u5c11\u6216\u6d88\u9664\u5206\u6bb5\u3002<\/p>\n<p><strong>\u5bf9\u9f50 MTU \u503c\u5728\u7f51\u7edc\u533a\u6bb5<\/strong><strong><br \/><\/strong> \u786e\u4fdd\u6240\u6709\u63a5\u53e3\u4f7f\u7528\u4e00\u81f4 MTU \u8bbe\u7f6e\u907f\u514d\u5c01\u5305\u8d85\u8fc7\u4e0b\u6e38\u9650\u5236\u3002<\/p>\n<p><strong>\u964d\u4f4e MTU \u5728\u5c01\u88c5\u6d41\u91cf<\/strong><strong><br \/><\/strong> overlay \u7f51\u7edc\u4e0e VPN \u96a7\u9053\u5e94\u8003\u8651\u5c01\u88c5\u5f00\u9500\u5e76\u964d\u4f4e\u5185\u90e8 MTU\u3002<\/p>\n<p><strong>\u5141\u8bb8 path MTU discovery \u6b63\u5e38\u8fd0\u4f5c<\/strong><strong><br \/><\/strong> \u5141\u8bb8 ICMP \u56de\u5e94\u5e2e\u52a9\u8bbe\u5907\u81ea\u52a8\u8c03\u6574\u5c01\u5305\u5927\u5c0f\u3002<\/p>\n<p><strong>\u8c03\u6574 TCP MSS \u5728\u9700\u8981\u65f6<\/strong><strong><br \/><\/strong> \u8def\u7531\u5668\u53ef\u4ee5\u9650\u5236 TCP \u6700\u5927 segment size \u5728\u8fde\u63a5\u5efa\u7acb\u65f6\u786e\u4fdd\u5c01\u5305\u4fdd\u6301\u5728 MTU \u9650\u5236\u4e4b\u5185\u3002<\/p>\n<p>\u8fd9\u4e9b\u8c03\u6574\u8ba9\u5c01\u5305\u5728\u7f51\u7edc\u4e2d\u4f20\u8f93\u800c\u4e0d\u9700\u8981\u88ab\u5206\u6bb5\u3002<\/p>\n<h2><strong>\u57fa\u7840\u67b6\u6784\u89c4\u5212\u5bf9\u5927\u578b\u6570\u636e\u4f20\u8f93<\/strong><\/h2>\n<p>\u5e94\u7528\u7a0b\u5e8f\u79fb\u52a8\u5927\u91cf\u6570\u636e\u7279\u522b\u5bb9\u6613\u53d7\u5230\u5206\u6bb5\u4e0e MTU \u4e0d\u5339\u914d\u5f71\u54cd\u3002\u5907\u4efd\u540c\u6b65\u3001\u5185\u5bb9\u5206\u53d1\u4e0e\u5168\u7403\u5a92\u4f53\u4f20\u8f93\u90fd\u4f9d\u8d56\u7a33\u5b9a\u5c01\u5305\u6d41\u91cf\u3002<\/p>\n<p>\u7f51\u7edc\u57fa\u7840\u67b6\u6784\u4f4d\u4e8e\u4e3b\u8981 internet exchange \u9644\u8fd1\u901a\u5e38\u53d7\u76ca\u4e8e\u66f4\u597d\u8def\u7531\u4e0e\u66f4\u4f4e\u5c01\u5305\u9057\u5931\u3002\u591a\u4e0a\u6e38\u7f51\u7edc\u4e5f\u6539\u5584\u957f\u8ddd\u79bb\u6d41\u91cf\u7a33\u5b9a\u6027\u3002<\/p>\n<p><strong>Tip<\/strong>: \u670d\u52a1\u4e9a\u592a\u7528\u6237\u6216\u8fdb\u884c\u56fd\u9645\u5185\u5bb9\u5206\u53d1\u7684\u4f01\u4e1a\u901a\u5e38\u53d7\u76ca\u4e8e\u90e8\u7f72\u72ec\u7acb\u670d\u52a1\u5668\u5728\u4e3b\u8981\u7f51\u7edc\u67a2\u7ebd\u9644\u8fd1\u5e76\u5177\u6709\u5f3a\u4e0a\u6e38\u8fde\u63a5\u3002\u8fd9\u51cf\u5c11\u8def\u7531\u6548\u7387\u95ee\u9898\u5e76\u63d0\u5347\u957f\u8ddd\u79bb\u4f20\u8f93\u7a33\u5b9a\u6027\u3002<\/p>\n<p><a href=\"https:\/\/www.dataplugs.com\/sc\/\">Dataplugs<\/a> \u63d0\u4f9b\u57fa\u7840\u67b6\u6784\u5728\u91cd\u8981\u8fde\u63a5\u67a2\u7ebd\u5e76\u914d\u5907<a href=\"https:\/\/www.dataplugs.com\/sc\/the-differences-between-a-shared-bandwidth-and-a-dedicated-bandwidth\/\">\u9ad8\u5e26\u5bbd\u8fde\u63a5<\/a>\u4e0e\u591a\u4e0a\u6e38\u7f51\u7edc\u3002\u8fd9\u79cd\u73af\u5883\u5e2e\u52a9\u4f01\u4e1a\u7ef4\u6301\u53ef\u9760\u4f20\u8f93\u6548\u80fd\u5bf9\u5927\u578b\u6570\u636e\u4e0e\u5168\u7403\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/p>\n<h2><strong>\u5e38\u89c1\u95ee\u9898<\/strong><\/h2>\n<p><strong>\u4ec0\u4e48\u6700\u5e38\u5bfc\u81f4\u5c01\u5305\u5206\u6bb5<\/strong><strong><br \/><\/strong> \u5c01\u5305\u5206\u6bb5\u901a\u5e38\u53d1\u751f\u5f53\u5c01\u5305\u8d85\u8fc7\u7f51\u7edc\u94fe\u8def MTU\u3002\u8fd9\u7ecf\u5e38\u56e0\u4e3a MTU \u4e0d\u5339\u914d\u6216\u96a7\u9053\u5c01\u88c5\u5f00\u9500\u3002<\/p>\n<p><strong>path MTU discovery \u95ee\u9898\u5982\u4f55\u5f71\u54cd\u5e94\u7528\u7a0b\u5e8f<\/strong><strong><br \/><\/strong> \u5982\u679c ICMP \u56de\u5e94\u88ab\u963b\u6321\uff0c\u4f20\u9001\u7aef\u65e0\u6cd5\u77e5\u9053\u6b63\u786e\u5c01\u5305\u5927\u5c0f\u5e76\u6301\u7eed\u4f20\u9001\u8fc7\u5927\u5c01\u5305\u3002<\/p>\n<p><strong>\u5206\u6bb5\u4f1a\u964d\u4f4e\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u5417<\/strong><strong><br \/><\/strong> \u662f\u3002\u5206\u6bb5\u589e\u52a0\u5904\u7406\u8d1f\u62c5\u5e76\u589e\u52a0\u91cd\u4f20\u673a\u4f1a\uff0c\u964d\u4f4e\u541e\u5410\u91cf\u3002<\/p>\n<p><strong>\u4e3a\u4ec0\u4e48 VPN \u7ecf\u5e38\u9020\u6210 MTU \u95ee\u9898<\/strong><strong><br \/><\/strong> VPN \u96a7\u9053\u589e\u52a0\u52a0\u5bc6\u6807\u5934\u5230\u5c01\u5305\u3002\u5982\u679c MTU \u6ca1\u6709\u964d\u4f4e\uff0c\u5c01\u5305\u53ef\u80fd\u8d85\u8fc7\u96a7\u9053\u5141\u8bb8\u5927\u5c0f\u3002<\/p>\n<h2><strong>\u7ed3\u8bba<\/strong><\/h2>\n<p>\u5c01\u5305\u5206\u6bb5\u95ee\u9898\u901a\u5e38\u6765\u81ea MTU \u8bbe\u7f6e\u5dee\u5f02\u5728\u591a\u5c42\u7f51\u7edc\u73af\u5883\u4e2d\u3002\u5f53\u5c01\u5305\u8d85\u8fc7\u4e2d\u95f4\u8bbe\u5907\u9650\u5236\uff0c\u5206\u6bb5\u6216\u5c01\u5305\u9057\u5931\u4f1a\u53d1\u751f\u3002<\/p>\n<p>\u901a\u8fc7\u8bc6\u522b MTU \u4e0d\u5339\u914d\u3001\u786e\u4fdd path MTU discovery \u6b63\u5e38\u8fd0\u4f5c\u4ee5\u53ca\u5bf9\u9f50\u5c01\u5305\u5927\u5c0f\u5728\u6574\u4e2a\u7f51\u7edc\u4e2d\uff0c\u4f01\u4e1a\u53ef\u4ee5\u660e\u663e\u6539\u5584\u7f51\u7edc\u7a33\u5b9a\u4e0e\u6570\u636e\u4f20\u8f93\u6548\u80fd\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u8bc4\u4f30\u5177\u6709\u9ad8\u5e26\u5bbd\u4e0e\u7a33\u5b9a\u56fd\u9645\u8fde\u63a5\u7684\u72ec\u7acb\u670d\u52a1\u5668\u73af\u5883\uff0c\u53ef\u4ee5\u901a\u8fc7\u5373\u65f6\u804a\u5929\u6216 <a href=\"mailto:sales@dataplugs.com\">sales@dataplugs.com<\/a> \u8054\u7cfb Dataplugs \u56e2\u961f\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u9ad8\u5e26\u5bbd\u7f51\u7edc\u4ecd\u7136\u53ef\u4ee5\u8868\u73b0\u4e0d\u7a33\u5b9a\u5f53\u5c01\u5305\u5927\u5c0f\u8d85\u8fc7\u67d0\u4e9b\u94fe\u8def\u5728\u8def\u5f84\u4e0a\u53ef\u4ee5\u5904\u7406\u7684\u9650\u5236\u3002\u5728\u8bb8\u591a\u57fa\u7840\u67b6\u6784\u4e2d\u771f\u6b63\u95ee\u9898\u4e0d\u662f\u901f\u5ea6\u800c\u662f\u5c01\u5305\u5206\u6bb5\u7531 MTU \u8bbe\u7f6e\u95ee\u9898\u5728\u4e0d\u540c\u7f51\u7edc\u533a\u6bb5\u4e4b\u95f4\u5f15\u8d77\u3002 \u5f53\u5c01\u5305\u5927\u4e8e MTU \u5141\u8bb8\u5728\u4e0b\u6e38\u63a5\u53e3\u65f6 &#8230; <a class=\"understrap-read-more-link\" href=\"https:\/\/www.dataplugs.com\/sc\/packet-fragmentation-high-mtu-causes\/\">\u4e86\u89e3\u66f4\u591a<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_cloudinary_featured_overwrite":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-68839","post","type-post","status-publish","format-standard","hentry","category-industry-news-sc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u4ec0\u4e48\u5bfc\u81f4\u5c01\u5305\u5206\u6bb5\u95ee\u9898\u5728\u9ad8 MTU \u7f51\u7edc\u4e0a\uff1f\uff5cDataplugs<\/title>\n<meta name=\"description\" content=\"\u4e86\u89e3\u9ad8 MTU \u7f51\u7edc\u4e2d\u5bfc\u81f4\u6570\u636e\u5305\u5206\u7247\u95ee\u9898\u7684\u539f\u56e0\u3001\u5e38\u89c1\u7684 MTU \u4e0d\u5339\u914d\u60c5\u51b5\uff0c\u4ee5\u53ca\u5982\u4f55\u901a\u8fc7\u5b9e\u9645\u65b9\u6cd5\u8fdb\u884c\u6545\u969c\u6392\u67e5\u5e76\u6539\u5584\u7f51\u7edc\u6027\u80fd\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dataplugs.com\/sc\/wp-json\/wp\/v2\/posts\/68839\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4ec0\u4e48\u5bfc\u81f4\u5c01\u5305\u5206\u6bb5\u95ee\u9898\u5728\u9ad8 MTU \u7f51\u7edc\u4e0a\uff1f\uff5cDataplugs\" \/>\n<meta property=\"og:description\" content=\"\u4e86\u89e3\u9ad8 MTU \u7f51\u7edc\u4e2d\u5bfc\u81f4\u6570\u636e\u5305\u5206\u7247\u95ee\u9898\u7684\u539f\u56e0\u3001\u5e38\u89c1\u7684 MTU \u4e0d\u5339\u914d\u60c5\u51b5\uff0c\u4ee5\u53ca\u5982\u4f55\u901a\u8fc7\u5b9e\u9645\u65b9\u6cd5\u8fdb\u884c\u6545\u969c\u6392\u67e5\u5e76\u6539\u5584\u7f51\u7edc\u6027\u80fd\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dataplugs.com\/sc\/wp-json\/wp\/v2\/posts\/68839\" \/>\n<meta property=\"og:site_name\" content=\"Dataplugs\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/dataplugs\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-18T02:57:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-18T02:59:19+00:00\" \/>\n<meta name=\"author\" content=\"Tommy Cheung\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@dataplugs\" \/>\n<meta name=\"twitter:site\" content=\"@dataplugs\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tommy Cheung\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u5206\" \/>\n<script type=\"application\/ld+json\" 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