{"id":2167,"date":"2021-11-24T20:40:32","date_gmt":"2021-11-24T12:40:32","guid":{"rendered":"https:\/\/nullthought.net\/?p=2167"},"modified":"2023-11-28T19:08:37","modified_gmt":"2023-11-28T11:08:37","slug":"%e5%9f%ba%e4%ba%8e%e9%b8%9f%e7%b1%bb%e8%bd%bd%e4%bd%93%e7%9a%84%e7%bd%91%e9%99%85%e5%8d%8f%e8%ae%ae","status":"publish","type":"post","link":"https:\/\/nullthought.net\/?p=2167","title":{"rendered":"\u57fa\u4e8e\u9e1f\u7c7b\u8f7d\u4f53\u7684\u7f51\u9645\u534f\u8bae"},"content":{"rendered":"\n<p><a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc1149\" target=\"_blank\" rel=\"noreferrer noopener\">RFC1149<\/a>, <a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc2549\" target=\"_blank\" rel=\"noreferrer noopener\">2549<\/a>, <a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc6214\" target=\"_blank\" rel=\"noreferrer noopener\">6214<\/a><\/p>\n\n\n\n<p>\u57fa\u4e8e\u9e1f\u7c7b\u8f7d\u4f53\u7684\u7f51\u9645\u534f\u8bae(A Standard for the Transmission of IP Datagrams on Avian Carriers)\uff0c\u5176QoS(IP over Avian Carriers with Quality of Service)\uff0c\u5176IPv6\u9002\u914d(Adaptation of RFC 1149 for IPv6)\uff0cietf\u5b98\u65b9\u7f51\u7ad9\u4e00\u672c\u6b63\u7ecf\u6709\u53d1\u5e03\u3002<br>\ud83d\udd4a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>The IP datagram is printed, on a small scroll of paper, in<br>hexadecimal, with each octet separated by whitestuff and blackstuff.<br>The scroll of paper is wrapped around one leg of the avian carrier.<br>A band of duct tape is used to secure the datagram&#8217;s edges. The<br>bandwidth is limited to the leg length. The MTU is variable, and<br>paradoxically, generally increases with increased carrier age. A<br>typical MTU is 256 milligrams. Some datagram padding may be needed.<\/p>\n\n\n\n<p>Upon receipt, the duct tape is removed and the paper copy of the<br>datagram is optically scanned into a electronically transmittable<br>form.<\/p>\n<cite>&#8212;from RFC1149<\/cite><\/blockquote>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"485\" height=\"1024\" src=\"https:\/\/nullthought.net\/wp-content\/uploads\/2021\/11\/rfc1149-485x1024.jpg\" alt=\"\" class=\"wp-image-2169\" srcset=\"https:\/\/nullthought.net\/wp-content\/uploads\/2021\/11\/rfc1149-485x1024.jpg 485w, https:\/\/nullthought.net\/wp-content\/uploads\/2021\/11\/rfc1149-142x300.jpg 142w, https:\/\/nullthought.net\/wp-content\/uploads\/2021\/11\/rfc1149-768x1621.jpg 768w, https:\/\/nullthought.net\/wp-content\/uploads\/2021\/11\/rfc1149-728x1536.jpg 728w, https:\/\/nullthought.net\/wp-content\/uploads\/2021\/11\/rfc1149-970x2048.jpg 970w, https:\/\/nullthought.net\/wp-content\/uploads\/2021\/11\/rfc1149.jpg 1079w\" sizes=\"auto, (max-width: 485px) 100vw, 485px\" \/><figcaption class=\"wp-element-caption\">RFC1149<\/figcaption><\/figure>\n\n\n\n<p>RFC1149\u63d0\u5230\uff1a\u6240\u4f20\u8f93\u7684\u6570\u636e\u6253\u5370\u5728\u7eb8\u4e0a\uff0c\u7136\u540e\u7ed1\u5728\u9e1f\uff08\u6bd4\u5982\u9e3d\u5b50\uff09\u817f\u4e0a\uff0c\u5e26\u5bbd\u53d7\u9650\u4e8e\u9e1f\u817f\u957f\u5ea6\u3002MTU\u5927\u81f4\u548c\u9e1f\u7684\u5c81\u6570\u6210\u6b63\u76f8\u5173\u3002<\/p>\n\n\n\n<p>RFC1149\u53d1\u5e03\u4e8e\uff11\uff19\uff19\uff19\u5e74\uff0c\u90a3\u65f6\u5019\u8fd8\u6ca1\u6709\u5c0f\uff35\u76d8\u3002\u82e5\u6401\u73b0\u5728\uff0c\u628a\uff35\u76d8\u7ed1\u5728\u9e3d\u5b50\u817f\u4e0a\u8fdb\u884c\u6570\u636e\u4f20\u8f93\uff0c\u5e26\u5bbd\u5373\u589e\u52a0\uff2e\u4e2a\u6570\u91cf\u7ea7\u3002<\/p>\n\n\n\n<p>\u5f53\u7136\uff0c RFC1149\u53d1\u5e03\u65e5\u671f\u662f4\u67081\u65e5\ud83d\ude01\uff0c\u5176\u4ed6\u4e24\u4e2a\u6807\u51c6\u4e5f\u662f4\u67081\u65e5\u53d1\u5e03\u7684\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5f69\u86cb\u4e00\u679a&#8230;&#8230;\u5982\u4e0b\u662f\u53ef\u4ee5\u63cf\u8ff0\u4efb\u4f55\u9e1f\u86cb\u5f62\u72b6\u7684\u901a\u7528\u65b9\u7a0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"363\" src=\"https:\/\/nullthought.net\/wp-content\/uploads\/2023\/11\/universal-mathematical-formula-for-bird-egg.jpg\" alt=\"\" class=\"wp-image-3320\" srcset=\"https:\/\/nullthought.net\/wp-content\/uploads\/2023\/11\/universal-mathematical-formula-for-bird-egg.jpg 680w, https:\/\/nullthought.net\/wp-content\/uploads\/2023\/11\/universal-mathematical-formula-for-bird-egg-300x160.jpg 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><figcaption class=\"wp-element-caption\">universal mathematical formula for any bird&#8217;s egg. <br>Source: <em><a href=\"https:\/\/nyaspubs.onlinelibrary.wiley.com\/doi\/10.1111\/nyas.14680\" target=\"_blank\" rel=\"noreferrer noopener\">Egg and math: introducing a universal formula for egg shape<\/a><\/em><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>RFC1149, 2549, 6214 \u57fa\u4e8e\u9e1f\u7c7b\u8f7d\u4f53\u7684\u7f51\u9645\u534f\u8bae(A Standard for the Tran [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3,8,2],"tags":[23],"class_list":["post-2167","post","type-post","status-publish","format-standard","hentry","category-it","category-tech","category-2","tag-random-talks"],"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"NullThought","author_link":"https:\/\/nullthought.net\/?author=1"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/nullthought.net\/?cat=3\" rel=\"category\">IT<\/a> <a href=\"https:\/\/nullthought.net\/?cat=8\" rel=\"category\">Tech<\/a> <a href=\"https:\/\/nullthought.net\/?cat=2\" rel=\"category\">\u6742\u8c08<\/a>","rttpg_excerpt":"RFC1149, 2549, 6214 \u57fa\u4e8e\u9e1f\u7c7b\u8f7d\u4f53\u7684\u7f51\u9645\u534f\u8bae(A Standard for the Tran&hellip;","_links":{"self":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/2167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2167"}],"version-history":[{"count":3,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/2167\/revisions"}],"predecessor-version":[{"id":3321,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/2167\/revisions\/3321"}],"wp:attachment":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}