{"id":68840,"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":"2026-03-18T11:00:32","modified_gmt":"2026-03-18T03:00:32","slug":"packet-fragmentation-high-mtu-causes","status":"publish","type":"post","link":"https:\/\/www.dataplugs.com\/tc\/packet-fragmentation-high-mtu-causes\/","title":{"rendered":"\u4ec0\u9ebc\u5c0e\u81f4\u5c01\u5305\u5206\u6bb5\u554f\u984c\u5728\u9ad8 MTU \u7db2\u8def\u4e0a\uff1f"},"content":{"rendered":"<div class=\"section-blog-2025\">\n<p>\u9ad8\u983b\u5bec\u7db2\u8def\u4ecd\u7136\u53ef\u4ee5\u8868\u73fe\u4e0d\u7a69\u5b9a\u7576\u5c01\u5305\u5927\u5c0f\u8d85\u904e\u67d0\u4e9b\u93c8\u8def\u5728\u8def\u5f91\u4e0a\u53ef\u4ee5\u8655\u7406\u7684\u9650\u5236\u3002\u5728\u8a31\u591a\u57fa\u790e\u67b6\u69cb\u4e2d\u771f\u6b63\u554f\u984c\u4e0d\u662f\u901f\u5ea6\u800c\u662f\u5c01\u5305\u5206\u6bb5\u7531 MTU \u8a2d\u5b9a\u554f\u984c\u5728\u4e0d\u540c\u7db2\u8def\u5340\u6bb5\u4e4b\u9593\u5f15\u8d77\u3002<\/p>\n<p>\u7576\u5c01\u5305\u5927\u65bc MTU \u5141\u8a31\u5728\u4e0b\u6e38\u4ecb\u9762\u6642\uff0c\u8def\u7531\u5668\u5fc5\u9808\u5c07\u5b83\u5011\u5206\u6bb5\u6216\u76f4\u63a5\u4e1f\u68c4\u5b83\u5011\u3002\u9019\u7a2e\u60c5\u6cc1\u5e38\u898b\u5728\u4f7f\u7528\u96a7\u9053\u3001overlay \u6216 VPN \u7684\u7db2\u8def\u4e2d\uff0c\u5728\u90a3\u88e1\u6709\u6548\u5c01\u5305\u5927\u5c0f\u9650\u5236\u901a\u5e38\u6bd4\u9810\u671f\u66f4\u5c0f\u3002<\/p>\n<p>\u7406\u89e3\u4ec0\u9ebc\u5c0e\u81f4\u5c01\u5305\u5206\u6bb5\u4ee5\u53ca MTU \u4e0d\u5339\u914d\u7db2\u8def\u689d\u4ef6\u5982\u4f55\u5f62\u6210\uff0c\u6709\u52a9\u7dad\u6301\u7a69\u5b9a\u9023\u63a5\u8207\u53ef\u9810\u6e2c\u8cc7\u6599\u50b3\u8f38\u3002<\/p>\n<h2><strong>\u7406\u89e3 MTU \u548c\u70ba\u4ec0\u9ebc\u5c01\u5305\u5927\u5c0f\u91cd\u8981<\/strong><\/h2>\n<p>\u6700\u5927\u50b3\u8f38\u55ae\u5143\u5b9a\u7fa9\u6700\u5927\u5c01\u5305\u5927\u5c0f\u53ef\u4ee5\u8de8\u904e\u7db2\u8def\u93c8\u8def\u50b3\u8f38\u800c\u4e0d\u88ab\u5206\u6bb5\u3002\u5728\u5927\u591a\u6578\u4e59\u592a\u7db2\u8def\u4e2d\u6a19\u6e96 MTU \u662f 1500 bytes\u3002<\/p>\n<p>\u5728\u9019\u500b\u9650\u5236\u4e4b\u5167\uff0c\u4e00\u90e8\u5206\u5c01\u5305\u7a7a\u9593\u88ab\u5354\u5b9a\u6a19\u982d\u4f7f\u7528\u4f8b\u5982 TCP \u548c IP\u3002\u5269\u9918\u7a7a\u9593\u627f\u8f09\u5be6\u969b\u61c9\u7528\u7a0b\u5f0f\u8cc7\u6599\u3002<\/p>\n<p>\u554f\u984c\u958b\u59cb\u7576\u5c01\u5305\u9047\u5230 MTU \u66f4\u5c0f\u7684\u7db2\u8def\u5340\u6bb5\u3002\u5982\u679c\u5c01\u5305\u8d85\u904e\u90a3\u500b\u9650\u5236\uff0c\u8a2d\u5099\u5fc5\u9808\u5206\u6bb5\u5c01\u5305\u6216\u4e1f\u68c4\u5b83\u3002<\/p>\n<p>\u983b\u7e41\u5206\u6bb5\u589e\u52a0\u984d\u5916\u8ca0\u64d4\u4e26\u53ef\u80fd\u6e1b\u6162\u8cc7\u6599\u50b3\u8f38\u901f\u5ea6\u3002<\/p>\n<p>Note: \u5927\u578b\u50b3\u8f38\u8de8\u8d8a\u570b\u969b\u8def\u7531\u53ef\u80fd\u51fa\u73fe\u541e\u5410\u91cf\u9650\u5236\u5982\u679c TCP \u8996\u7a97\u5927\u5c0f\u5c0f\u65bc\u9023\u7dda\u7684\u983b\u5bec\u5ef6\u9072\u4e58\u7a4d\u3002<\/p>\n<h2><strong>\u5c01\u5305\u5206\u6bb5\u554f\u984c\u7684\u5e38\u898b\u539f\u56e0<\/strong><\/h2>\n<p>\u5c01\u5305\u5206\u6bb5\u5f88\u5c11\u56e0\u70ba\u55ae\u4e00\u8a2d\u5b9a\u767c\u751f\u3002\u5b83\u901a\u5e38\u51fa\u73fe\u7576\u591a\u500b\u7db2\u8def\u5c64\u4e92\u76f8\u904b\u4f5c\u800c\u6bcf\u4e00\u5c64\u6709\u4e0d\u540c\u5c01\u5305\u5927\u5c0f\u9650\u5236\u3002<\/p>\n<p>\u4ee5\u4e0b\u60c5\u6cc1\u7d93\u5e38\u89f8\u767c\u9ad8 MTU \u7db2\u8def\u554f\u984c\u3002<\/p>\n<p><strong>MTU \u4e0d\u5339\u914d\u5728\u7db2\u8def\u5340\u6bb5\u4e4b\u9593<\/strong><strong><br \/><\/strong> \u4e00\u500b\u5178\u578b MTU \u4e0d\u5339\u914d\u60c5\u6cc1\u767c\u751f\u7576\u5169\u500b\u9023\u63a5\u7db2\u8def\u5141\u8a31\u4e0d\u540c\u5c01\u5305\u5927\u5c0f\u3002\u4f8b\u5982\u4e00\u53f0\u4f3a\u670d\u5668\u4ecb\u9762\u53ef\u80fd\u50b3\u9001\u5c01\u5305\u70ba 1500 bytes \u7db2\u8def\uff0c\u800c\u4e0b\u6e38 VPN \u8def\u5f91\u53ea\u652f\u63f4 1400 bytes\u3002<\/p>\n<p><strong>\u5c01\u88dd\u4f86\u81ea\u96a7\u9053\u6216 overlay<\/strong><strong><br \/><\/strong> \u6280\u8853\u4f8b\u5982 VXLAN\u3001GRE \u6216 IPsec \u6703\u589e\u52a0\u984d\u5916\u6a19\u982d\u5230\u5c01\u5305\u3002\u9019\u4e9b\u6a19\u982d\u589e\u52a0\u5c01\u5305\u5927\u5c0f\u4e26\u53ef\u80fd\u63a8\u52d5\u6d41\u91cf\u8d85\u904e\u5be6\u9ad4\u93c8\u8def\u7684 MTU \u9650\u5236\u3002<\/p>\n<p><strong>\u5bb9\u5668\u548c\u96f2\u7aef overlay \u7db2\u8def<\/strong><strong><br \/><\/strong> \u5e73\u53f0\u4f8b\u5982 Kubernetes \u7d93\u5e38\u4f9d\u8cf4 overlay \u7db2\u8def\u3002\u56e0\u70ba overlay \u589e\u52a0\u5c01\u88dd\u8ca0\u64d4\uff0c\u53ef\u7528 MTU \u5c0d\u5bb9\u5668\u6d41\u91cf\u8b8a\u5f97\u66f4\u5c0f\u3002<\/p>\n<p><strong>VPN \u52a0\u5bc6\u8ca0\u64d4<\/strong><strong><br \/><\/strong> \u52a0\u5bc6\u96a7\u9053\u901a\u5e38\u964d\u4f4e\u53ef\u7528 MTU \u503c\u5230\u5927\u7d04 1400 bytes\u3002\u5982\u679c\u61c9\u7528\u7a0b\u5f0f\u4ecd\u7136\u50b3\u9001\u5c01\u5305\u5927\u5c0f\u70ba\u6a19\u6e96\u4e59\u592a\u7db2\u8def\uff0c\u5206\u6bb5\u6703\u5728\u96a7\u9053\u5167\u767c\u751f\u3002<\/p>\n<p><strong>\u88ab\u963b\u64cb ICMP \u8a0a\u606f<\/strong><strong><br \/><\/strong> Path MTU discovery \u4f9d\u8cf4 ICMP \u56de\u61c9\u7576\u5c01\u5305\u592a\u5927\u3002\u5982\u679c\u9632\u706b\u7246\u963b\u64cb\u9019\u4e9b\u56de\u61c9\uff0c\u50b3\u9001\u7aef\u6703\u7e7c\u7e8c\u50b3\u9001\u904e\u5927\u5c01\u5305\u800c\u5206\u6bb5\u6301\u7e8c\u767c\u751f\u3002<\/p>\n<h2><strong>Path MTU Discovery \u554f\u984c\u5982\u4f55\u5275\u9020\u96b1\u85cf\u6545\u969c<\/strong><\/h2>\n<p>Path MTU discovery \u8a2d\u8a08\u70ba\u81ea\u52d5\u627e\u51fa\u6700\u5c0f\u5c01\u5305\u5927\u5c0f\u652f\u63f4\u6cbf\u8457\u4e00\u689d\u7db2\u8def\u8def\u5f91\u3002\u7576\u5c01\u5305\u8d85\u904e\u8a2d\u5099 MTU\uff0c\u8a2d\u5099\u61c9\u8a72\u901a\u77e5\u50b3\u9001\u7aef\u4ee5\u4fbf\u5b83\u964d\u4f4e\u5c01\u5305\u5927\u5c0f\u3002<\/p>\n<p>\u7136\u800c\u5982\u679c ICMP \u56de\u61c9\u88ab\u904e\u6ffe\u6216\u5ffd\u7565\uff0c\u9019\u500b\u56de\u994b\u6c38\u9060\u4e0d\u6703\u5230\u9054\u50b3\u9001\u7aef\u3002\u7d50\u679c\u662f\u91cd\u50b3\u5faa\u74b0\u8207\u5206\u6bb5\u6d41\u91cf\u6301\u7e8c\u767c\u751f\u3002<\/p>\n<p>\u5e38\u898b\u75c7\u72c0\u53ef\u4ee5\u5305\u62ec\uff1a<\/p>\n<p>\u9023\u7dda\u5c0d\u5c0f\u8acb\u6c42\u6b63\u5e38\u4f46\u5c0d\u5927\u578b\u8cc7\u6599\u50b3\u8f38\u5931\u6557<br \/> \u6a94\u6848\u4e0a\u50b3\u5728\u4e2d\u9014\u5361\u4f4f<br \/> SSH \u6216\u8cc7\u6599\u5eab\u9023\u7dda\u5728\u5927\u91cf\u8cc7\u6599\u8f38\u51fa\u6642\u51cd\u7d50<br \/> \u8de8\u9577\u8ddd\u96e2\u8def\u7531\u61c9\u7528\u6d41\u91cf\u4e0d\u7a69\u5b9a<\/p>\n<p>\u9019\u4e9b\u884c\u70ba\u7d93\u5e38\u88ab\u8aa4\u8a8d\u70ba\u61c9\u7528\u7a0b\u5f0f\u554f\u984c\u800c\u5be6\u969b\u539f\u56e0\u662f path MTU discovery \u554f\u984c\u3002<\/p>\n<h2><strong>\u5206\u6bb5\u8207\u5b83\u5c0d\u6548\u80fd\u7684\u5f71\u97ff<\/strong><\/h2>\n<p>\u5206\u6bb5\u589e\u52a0\u9700\u8981\u8655\u7406\u8cc7\u6599\u7684\u5de5\u4f5c\u91cf\u5728\u7db2\u8def\u4e2d\u3002<\/p>\n<p>\u6bcf\u4e00\u500b\u7247\u6bb5\u5fc5\u9808\u88ab\u8ffd\u8e64\u3001\u50b3\u9001\u4e26\u5728\u63a5\u6536\u7aef\u91cd\u65b0\u7d44\u88dd\u3002\u5982\u679c\u4efb\u4f55\u4e00\u500b\u7247\u6bb5\u907a\u5931\uff0c\u6574\u500b\u5c01\u5305\u5fc5\u9808\u91cd\u65b0\u50b3\u9001\u3002\u9019\u589e\u52a0\u5ef6\u9072\u4e26\u964d\u4f4e\u6709\u6548\u541e\u5410\u91cf\u3002<\/p>\n<p>IPv6 \u7db2\u8def\u4f7f\u60c5\u6cc1\u66f4\u52a0\u56b4\u683c\u3002\u8207 IPv4 \u4e0d\u540c\uff0cIPv6 \u8def\u7531\u5668\u4e0d\u5728\u50b3\u8f38\u4e2d\u5206\u6bb5\u5c01\u5305\u3002\u76f8\u53cd\u5b83\u5011\u4e1f\u68c4\u904e\u5927\u5c01\u5305\u4e26\u4f9d\u8cf4\u50b3\u9001\u7aef\u8abf\u6574\u50b3\u8f38\u5927\u5c0f\u3002<\/p>\n<p>\u9019\u7a2e\u884c\u70ba\u4f7f\u6b63\u78ba MTU \u898f\u5283\u5728\u73fe\u4ee3\u57fa\u790e\u67b6\u69cb\u4e2d\u7279\u5225\u91cd\u8981\u3002<\/p>\n<h2><strong>\u7db2\u8def\u5c01\u5305\u5206\u6bb5\u6545\u969c\u6392\u9664<\/strong><\/h2>\n<p>\u8a3a\u65b7\u5206\u6bb5\u901a\u5e38\u958b\u59cb\u65bc\u8b58\u5225\u6700\u5927\u5c01\u5305\u5927\u5c0f\u652f\u63f4\u6cbf\u8457\u4e00\u689d\u8def\u7531\u3002<\/p>\n<p>\u7ba1\u7406\u54e1\u5e38\u4f7f\u7528 ping \u6e2c\u8a66\u9010\u6b65\u589e\u52a0\u5c01\u5305\u5927\u5c0f\u76f4\u5230\u5206\u6bb5\u767c\u751f\u3002\u5de5\u5177\u4f8b\u5982 tracepath \u4e5f\u53ef\u4ee5\u986f\u793a path MTU\u3002<\/p>\n<p>\u5c01\u5305\u6355\u6349\u5de5\u5177\u53ef\u80fd\u986f\u793a\u983b\u7e41\u5206\u6bb5\u5c01\u5305\u5728\u7db2\u8def\u6d41\u91cf\u4e2d\uff0c\u9019\u901a\u5e38\u8868\u793a MTU \u8a2d\u5b9a\u554f\u984c\u5728\u57fa\u790e\u67b6\u69cb\u67d0\u8655\u3002<\/p>\n<p>\u5728\u8abf\u67e5\u5206\u6bb5\u554f\u984c\u6642\u5de5\u7a0b\u5e2b\u901a\u5e38\u6aa2\u67e5\uff1a<\/p>\n<p>\u5be6\u9ad4\u4ecb\u9762 MTU \u503c<br \/> \u96a7\u9053\u6216 VPN \u4ecb\u9762\u8a2d\u5b9a<br \/> overlay \u7db2\u8def\u8a2d\u5b9a<br \/> \u9632\u706b\u7246\u898f\u5247\u5f71\u97ff ICMP \u6d41\u91cf<\/p>\n<p>\u4fee\u6b63\u9019\u4e9b\u4e0d\u4e00\u81f4\u8a2d\u5b9a\u901a\u5e38\u53ef\u4ee5\u89e3\u6c7a\u5927\u591a\u6578\u5206\u6bb5\u76f8\u95dc\u554f\u984c\u3002<\/p>\n<p><strong>Tip<\/strong>: \u5982\u679c\u4f60\u7684\u57fa\u790e\u67b6\u69cb\u8655\u7406\u5927\u578b\u6a94\u6848\u50b3\u8f38\u3001\u4e32\u6d41\u6216\u5168\u7403\u61c9\u7528\u6d41\u91cf\uff0c\u7a69\u5b9a\u8def\u7531\u8def\u5f91\u8207\u826f\u597d\u4e0a\u6e38\u9023\u63a5\u540c\u6a23\u91cd\u8981\u3002<\/p>\n<h2><strong>\u5982\u4f55\u4fee\u5fa9\u5c01\u5305\u5206\u6bb5<\/strong><\/h2>\n<p>\u4e00\u65e6\u6839\u672c\u539f\u56e0\u88ab\u8b58\u5225\uff0c\u5e7e\u500b\u5be6\u969b\u8abf\u6574\u53ef\u4ee5\u6e1b\u5c11\u6216\u6d88\u9664\u5206\u6bb5\u3002<\/p>\n<p><strong>\u5c0d\u9f4a MTU \u503c\u5728\u7db2\u8def\u5340\u6bb5<\/strong><strong><br \/><\/strong> \u78ba\u4fdd\u6240\u6709\u4ecb\u9762\u4f7f\u7528\u4e00\u81f4 MTU \u8a2d\u5b9a\u907f\u514d\u5c01\u5305\u8d85\u904e\u4e0b\u6e38\u9650\u5236\u3002<\/p>\n<p><strong>\u964d\u4f4e MTU \u5728\u5c01\u88dd\u6d41\u91cf<\/strong><strong><br \/><\/strong> overlay \u7db2\u8def\u8207 VPN \u96a7\u9053\u61c9\u8003\u616e\u5c01\u88dd\u958b\u92b7\u4e26\u964d\u4f4e\u5167\u90e8 MTU\u3002<\/p>\n<p><strong>\u5141\u8a31 path MTU discovery \u6b63\u5e38\u904b\u4f5c<\/strong><strong><br \/><\/strong> \u5141\u8a31 ICMP \u56de\u61c9\u5e6b\u52a9\u8a2d\u5099\u81ea\u52d5\u8abf\u6574\u5c01\u5305\u5927\u5c0f\u3002<\/p>\n<p><strong>\u8abf\u6574 TCP MSS \u5728\u9700\u8981\u6642<\/strong><strong><br \/><\/strong> \u8def\u7531\u5668\u53ef\u4ee5\u9650\u5236 TCP \u6700\u5927 segment size \u5728\u9023\u7dda\u5efa\u7acb\u6642\u78ba\u4fdd\u5c01\u5305\u4fdd\u6301\u5728 MTU \u9650\u5236\u4e4b\u5167\u3002<\/p>\n<p>\u9019\u4e9b\u8abf\u6574\u8b93\u5c01\u5305\u5728\u7db2\u8def\u4e2d\u50b3\u8f38\u800c\u4e0d\u9700\u8981\u88ab\u5206\u6bb5\u3002<\/p>\n<h2><strong>\u57fa\u790e\u67b6\u69cb\u898f\u5283\u5c0d\u5927\u578b\u8cc7\u6599\u50b3\u8f38<\/strong><\/h2>\n<p>\u61c9\u7528\u7a0b\u5f0f\u79fb\u52d5\u5927\u91cf\u8cc7\u6599\u7279\u5225\u5bb9\u6613\u53d7\u5230\u5206\u6bb5\u8207 MTU \u4e0d\u5339\u914d\u5f71\u97ff\u3002\u5099\u4efd\u540c\u6b65\u3001\u5167\u5bb9\u5206\u767c\u8207\u5168\u7403\u5a92\u9ad4\u50b3\u8f38\u90fd\u4f9d\u8cf4\u7a69\u5b9a\u5c01\u5305\u6d41\u91cf\u3002<\/p>\n<p>\u7db2\u8def\u57fa\u790e\u67b6\u69cb\u4f4d\u65bc\u4e3b\u8981 internet exchange \u9644\u8fd1\u901a\u5e38\u53d7\u76ca\u65bc\u66f4\u597d\u8def\u7531\u8207\u66f4\u4f4e\u5c01\u5305\u907a\u5931\u3002\u591a\u4e0a\u6e38\u7db2\u8def\u4e5f\u6539\u5584\u9577\u8ddd\u96e2\u6d41\u91cf\u7a69\u5b9a\u6027\u3002<\/p>\n<p><strong>Tip<\/strong>: \u670d\u52d9\u4e9e\u6d32\u592a\u5e73\u6d0b\u7528\u6236\u6216\u9032\u884c\u570b\u969b\u5167\u5bb9\u5206\u767c\u7684\u4f01\u696d\u901a\u5e38\u53d7\u76ca\u65bc\u90e8\u7f72\u5c08\u5c6c\u4f3a\u670d\u5668\u5728\u4e3b\u8981\u7db2\u8def\u6a1e\u7d10\u9644\u8fd1\u4e26\u5177\u6709\u5f37\u4e0a\u6e38\u9023\u63a5\u3002\u9019\u6e1b\u5c11\u8def\u7531\u6548\u7387\u554f\u984c\u4e26\u63d0\u5347\u9577\u8ddd\u96e2\u50b3\u8f38\u7a69\u5b9a\u6027\u3002<\/p>\n<p><a href=\"https:\/\/www.dataplugs.com\/tc\/\">Dataplugs<\/a> \u63d0\u4f9b\u57fa\u790e\u67b6\u69cb\u5728\u91cd\u8981\u9023\u63a5\u6a1e\u7d10\u4e26\u914d\u5099<a href=\"https:\/\/www.dataplugs.com\/tc\/the-differences-between-a-shared-bandwidth-and-a-dedicated-bandwidth\/\">\u9ad8\u983b\u5bec\u9023\u63a5<\/a>\u8207\u591a\u4e0a\u6e38\u7db2\u8def\u3002\u9019\u7a2e\u74b0\u5883\u5e6b\u52a9\u4f01\u696d\u7dad\u6301\u53ef\u9760\u50b3\u8f38\u6548\u80fd\u5c0d\u5927\u578b\u8cc7\u6599\u8207\u5168\u7403\u5de5\u4f5c\u8ca0\u8f09\u3002<\/p>\n<h2><strong>\u5e38\u898b\u554f\u984c<\/strong><\/h2>\n<p><strong>\u4ec0\u9ebc\u6700\u5e38\u5c0e\u81f4\u5c01\u5305\u5206\u6bb5<\/strong><strong><br \/><\/strong> \u5c01\u5305\u5206\u6bb5\u901a\u5e38\u767c\u751f\u7576\u5c01\u5305\u8d85\u904e\u7db2\u8def\u93c8\u8def MTU\u3002\u9019\u7d93\u5e38\u56e0\u70ba MTU \u4e0d\u5339\u914d\u6216\u96a7\u9053\u5c01\u88dd\u958b\u92b7\u3002<\/p>\n<p><strong>path MTU discovery \u554f\u984c\u5982\u4f55\u5f71\u97ff\u61c9\u7528\u7a0b\u5f0f<\/strong><strong><br \/><\/strong> \u5982\u679c ICMP \u56de\u61c9\u88ab\u963b\u64cb\uff0c\u50b3\u9001\u7aef\u7121\u6cd5\u77e5\u9053\u6b63\u78ba\u5c01\u5305\u5927\u5c0f\u4e26\u6301\u7e8c\u50b3\u9001\u904e\u5927\u5c01\u5305\u3002<\/p>\n<p><strong>\u5206\u6bb5\u6703\u964d\u4f4e\u8cc7\u6599\u50b3\u8f38\u901f\u5ea6\u55ce<\/strong><strong><br \/><\/strong> \u662f\u3002\u5206\u6bb5\u589e\u52a0\u8655\u7406\u8ca0\u64d4\u4e26\u589e\u52a0\u91cd\u50b3\u6a5f\u6703\uff0c\u964d\u4f4e\u541e\u5410\u91cf\u3002<\/p>\n<p><strong>\u70ba\u4ec0\u9ebc VPN \u7d93\u5e38\u9020\u6210 MTU \u554f\u984c<\/strong><strong><br \/><\/strong> VPN \u96a7\u9053\u589e\u52a0\u52a0\u5bc6\u6a19\u982d\u5230\u5c01\u5305\u3002\u5982\u679c MTU \u6c92\u6709\u964d\u4f4e\uff0c\u5c01\u5305\u53ef\u80fd\u8d85\u904e\u96a7\u9053\u5141\u8a31\u5927\u5c0f\u3002<\/p>\n<h2><strong>\u7d50\u8ad6<\/strong><\/h2>\n<p>\u5c01\u5305\u5206\u6bb5\u554f\u984c\u901a\u5e38\u4f86\u81ea MTU \u8a2d\u5b9a\u5dee\u7570\u5728\u591a\u5c64\u7db2\u8def\u74b0\u5883\u4e2d\u3002\u7576\u5c01\u5305\u8d85\u904e\u4e2d\u9593\u8a2d\u5099\u9650\u5236\uff0c\u5206\u6bb5\u6216\u5c01\u5305\u907a\u5931\u6703\u767c\u751f\u3002<\/p>\n<p>\u900f\u904e\u8b58\u5225 MTU \u4e0d\u5339\u914d\u3001\u78ba\u4fdd path MTU discovery \u6b63\u5e38\u904b\u4f5c\u4ee5\u53ca\u5c0d\u9f4a\u5c01\u5305\u5927\u5c0f\u5728\u6574\u500b\u7db2\u8def\u4e2d\uff0c\u4f01\u696d\u53ef\u4ee5\u660e\u986f\u6539\u5584\u7db2\u8def\u7a69\u5b9a\u8207\u8cc7\u6599\u50b3\u8f38\u6548\u80fd\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u8a55\u4f30\u5177\u6709\u9ad8\u983b\u5bec\u8207\u7a69\u5b9a\u570b\u969b\u9023\u63a5\u7684\u5c08\u5c6c\u4f3a\u670d\u5668\u74b0\u5883\uff0c\u53ef\u4ee5\u900f\u904e\u5373\u6642\u804a\u5929\u6216 <a href=\"mailto:sales@dataplugs.com\">sales@dataplugs.com<\/a> \u806f\u7d61 Dataplugs \u5718\u968a\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u9ad8\u983b\u5bec\u7db2\u8def\u4ecd\u7136\u53ef\u4ee5\u8868\u73fe\u4e0d\u7a69\u5b9a\u7576\u5c01\u5305\u5927\u5c0f\u8d85\u904e\u67d0\u4e9b\u93c8\u8def\u5728\u8def\u5f91\u4e0a\u53ef\u4ee5\u8655\u7406\u7684\u9650\u5236\u3002\u5728\u8a31\u591a\u57fa\u790e\u67b6\u69cb\u4e2d\u771f\u6b63\u554f\u984c\u4e0d\u662f\u901f\u5ea6\u800c\u662f\u5c01\u5305\u5206\u6bb5\u7531 MTU \u8a2d\u5b9a\u554f\u984c\u5728\u4e0d\u540c\u7db2\u8def\u5340\u6bb5\u4e4b\u9593\u5f15\u8d77\u3002 \u7576\u5c01\u5305\u5927\u65bc MTU \u5141\u8a31\u5728\u4e0b\u6e38\u4ecb\u9762\u6642 &#8230; <a class=\"understrap-read-more-link\" href=\"https:\/\/www.dataplugs.com\/tc\/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":[104],"tags":[],"class_list":["post-68840","post","type-post","status-publish","format-standard","hentry","category-industry-news-tc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u4ec0\u9ebc\u5c0e\u81f4\u5c01\u5305\u5206\u6bb5\u554f\u984c\u5728\u9ad8 MTU \u7db2\u8def\u4e0a\uff1f\uff5cDataplugs<\/title>\n<meta name=\"description\" content=\"\u4e86\u89e3\u9ad8 MTU \u7db2\u8def\u4e2d\u9020\u6210\u5c01\u5305\u5206\u5272\u554f\u984c\u7684\u539f\u56e0\u3001\u5e38\u898b\u7684 MTU \u4e0d\u5339\u914d\u60c5\u6cc1\uff0c\u4ee5\u53ca\u5982\u4f55\u900f\u904e\u5be6\u969b\u65b9\u6cd5\u9032\u884c\u6545\u969c\u6392\u9664\u4e26\u63d0\u5347\u7db2\u8def\u6548\u80fd\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dataplugs.com\/tc\/wp-json\/wp\/v2\/posts\/68840\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4ec0\u9ebc\u5c0e\u81f4\u5c01\u5305\u5206\u6bb5\u554f\u984c\u5728\u9ad8 MTU \u7db2\u8def\u4e0a\uff1f\uff5cDataplugs\" \/>\n<meta property=\"og:description\" content=\"\u4e86\u89e3\u9ad8 MTU \u7db2\u8def\u4e2d\u9020\u6210\u5c01\u5305\u5206\u5272\u554f\u984c\u7684\u539f\u56e0\u3001\u5e38\u898b\u7684 MTU \u4e0d\u5339\u914d\u60c5\u6cc1\uff0c\u4ee5\u53ca\u5982\u4f55\u900f\u904e\u5be6\u969b\u65b9\u6cd5\u9032\u884c\u6545\u969c\u6392\u9664\u4e26\u63d0\u5347\u7db2\u8def\u6548\u80fd\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dataplugs.com\/tc\/wp-json\/wp\/v2\/posts\/68840\" \/>\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=\"2026-03-18T03:00:32+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=\"\u9810\u4f30\u95b1\u8b80\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u5206\u9418\" \/>\n<script type=\"application\/ld+json\" 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\u7db2\u8def\u4e0a\uff1f\",\"datePublished\":\"2026-03-18T02:57:03+00:00\",\"dateModified\":\"2026-03-18T03:00:32+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.dataplugs.com\\\/tc\\\/packet-fragmentation-high-mtu-causes\\\/\"},\"wordCount\":\"104\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.dataplugs.com\\\/sc\\\/#organization\"},\"articleSection\":[\"\u884c\u696d\u8cc7\u8a0a\"],\"inLanguage\":\"zh-Hant\",\"url\":\"\",\"about\":{\"@id\":\"https:\\\/\\\/www.dataplugs.com\\\/tc\\\/packet-fragmentation-high-mtu-causes\\\/\"},\"thumbnailUrl\":\"https:\\\/\\\/www.dataplugs.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/dp_blog_20260318.png\"},\"1\":{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.dataplugs.com\\\/tc\\\/packet-fragmentation-high-mtu-causes\\\/\",\"url\":\"https:\\\/\\\/www.dataplugs.com\\\/tc\\\/packet-fragmentation-high-mtu-causes\\\/\",\"name\":\"\u4ec0\u9ebc\u5c0e\u81f4\u5c01\u5305\u5206\u6bb5\u554f\u984c\u5728\u9ad8 MTU 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\u7db2\u8def\u4e2d\u9020\u6210\u5c01\u5305\u5206\u5272\u554f\u984c\u7684\u539f\u56e0\u3001\u5e38\u898b\u7684 MTU \u4e0d\u5339\u914d\u60c5\u6cc1\uff0c\u4ee5\u53ca\u5982\u4f55\u900f\u904e\u5be6\u969b\u65b9\u6cd5\u9032\u884c\u6545\u969c\u6392\u9664\u4e26\u63d0\u5347\u7db2\u8def\u6548\u80fd\u3002","robots":{"index":"index","follow":"follow"},"canonical":"https:\/\/www.dataplugs.com\/tc\/wp-json\/wp\/v2\/posts\/68840","og_locale":"zh_TW","og_type":"article","og_title":"\u4ec0\u9ebc\u5c0e\u81f4\u5c01\u5305\u5206\u6bb5\u554f\u984c\u5728\u9ad8 MTU \u7db2\u8def\u4e0a\uff1f\uff5cDataplugs","og_description":"\u4e86\u89e3\u9ad8 MTU \u7db2\u8def\u4e2d\u9020\u6210\u5c01\u5305\u5206\u5272\u554f\u984c\u7684\u539f\u56e0\u3001\u5e38\u898b\u7684 MTU 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