{"id":4014,"date":"2025-09-10T00:00:00","date_gmt":"2025-09-10T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-is-packet-over-sonet-sdh-pos\/"},"modified":"2026-06-22T09:06:14","modified_gmt":"2026-06-22T09:06:14","slug":"what-is-packet-over-sonet-sdh-pos","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-packet-over-sonet-sdh-pos","title":{"rendered":"G\u00f3i tr\u00ean SONET\/SDH (POS) \u2013 Truy\u1ec1n t\u1ea3i IP Hi\u1ec7u qu\u1ea3 tr\u00ean M\u1ea1ng Quang"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f3044cf65264b63b9b1f2491f3afb67.webp\" alt=\"What is Packet over SONET\/SDH (POS)?\" class=\"wp-image-4012\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f3044cf65264b63b9b1f2491f3afb67.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f3044cf65264b63b9b1f2491f3afb67-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f3044cf65264b63b9b1f2491f3afb67-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f3044cf65264b63b9b1f2491f3afb67-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f3044cf65264b63b9b1f2491f3afb67-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><span style=\"color: rgb(9, 12, 30);\">\u2705 <\/span>Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">G\u00f3i tr\u00ean SONET\/SDH (POS) l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 then ch\u1ed1t cho ph\u00e9p truy\u1ec1n t\u1ea3i hi\u1ec7u qu\u1ea3 d\u1eef li\u1ec7u d\u1ef1a tr\u00ean g\u00f3i, ch\u1eb3ng h\u1ea1n nh\u01b0 IP v\u00e0 c\u00e1c lo\u1ea1i kh\u00e1c, qua c\u00e1c m\u1ea1ng quang t\u1ed1c \u0111\u1ed9 cao <strong>m\u1ea1ng quang<\/strong>. B\u1eb1ng c\u00e1ch khai th\u00e1c c\u1ea5u tr\u00fac \u0111\u1ed3ng b\u1ed9 v\u00e0 \u0111\u00e1ng tin c\u1eady c\u1ee7a SONET (M\u1ea1ng Quang \u0110\u1ed3ng b\u1ed9) v\u00e0 SDH (Ph\u00e2n c\u1ea5p S\u1ed1 \u0110\u1ed3ng b\u1ed9), POS cung c\u1ea5p cho c\u00e1c nh\u00e0 khai th\u00e1c vi\u1ec5n th\u00f4ng v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-an-isp-internet-service-provider\/\">ISPs<\/a> m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p v\u1eefng ch\u1eafc \u0111\u1ec3 v\u1eadn chuy\u1ec3n l\u01b0u l\u01b0\u1ee3ng IP quy m\u00f4 l\u1edbn tr\u00ean c\u00e1c m\u1ea1ng l\u00f5i c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><span style=\"color: rgb(9, 12, 30);\">\u2705 <\/span>G\u00f3i tr\u00ean SONET\/SDH (POS) l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">POS l\u00e0 m\u1ed9t khu\u00f4n kh\u1ed5 giao th\u1ee9c bao b\u1ecdc d\u1eef li\u1ec7u \u0111\u1ecbnh h\u01b0\u1edbng theo g\u00f3i, th\u01b0\u1eddng l\u00e0 IP, v\u00e0o c\u00e1c khung SONET ho\u1eb7c SDH nh\u1eb1m truy\u1ec1n d\u1eabn quang. Kh\u00e1c v\u1edbi c\u00e1c <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/sonet-sdh-in-optical-transport-networks\/\">SONET\/SDH <\/a>\u1ee9ng d\u1ee5ng truy\u1ec1n th\u1ed1ng, v\u1ed1n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u1ee7 y\u1ebfu cho l\u01b0u l\u01b0\u1ee3ng tho\u1ea1i v\u00e0 chuy\u1ec3n m\u1ea1ch k\u00eanh, POS cho ph\u00e9p c\u00e1c d\u1ecbch v\u1ee5 chuy\u1ec3n m\u1ea1ch g\u00f3i hi\u1ec7n \u0111\u1ea1i khai th\u00e1c hi\u1ec7u qu\u1ea3 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quang t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng bao g\u1ed3m <strong>bao b\u1ecdc b\u1eb1ng Giao th\u1ee9c \u0110i\u1ec3m-\u0111\u1ebfn-\u0110i\u1ec3m (PPP)<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p>C\u00e1c g\u00f3i IP \u0111\u01b0\u1ee3c bao b\u1ecdc v\u00e0o c\u00e1c khung PPP.<\/p><\/li><li><p>C\u00e1c khung PPP \u0111\u01b0\u1ee3c \u00e1nh x\u1ea1 v\u00e0o t\u1ea3i tr\u1ecdng c\u1ee7a SONET\/SDH.<\/p><\/li><li><p>D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n qua m\u1ea1ng quang v\u00e0 \u0111\u01b0\u1ee3c gi\u1ea3i bao t\u1ea1i \u0111\u1ea7u nh\u1eadn.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ea3m b\u1ea3o m\u1ee9c \u0111\u1ed9 ch\u1ed3ng l\u1ea5n giao th\u1ee9c t\u1ed1i thi\u1ec3u, duy tr\u00ec th\u00f4ng l\u01b0\u1ee3ng cao v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p \u2013 nh\u1eefng y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu cho c\u00e1c \u1ee9ng d\u1ee5ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2f199b1b94f8499697e2c1c70579773a.webp\" alt=\"Packet over SONET\/SDH (POS)\" class=\"wp-image-4013\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2f199b1b94f8499697e2c1c70579773a.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2f199b1b94f8499697e2c1c70579773a-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2f199b1b94f8499697e2c1c70579773a-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2f199b1b94f8499697e2c1c70579773a-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2f199b1b94f8499697e2c1c70579773a-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><span style=\"color: rgb(9, 12, 30);\">\u2705<\/span>C\u00e1c \u0110\u1eb7c \u0111i\u1ec3m Ch\u00ednh c\u1ee7a POS<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Truy\u1ec1n d\u1eabn T\u1ed1c \u0111\u1ed9 Cao:<\/strong> H\u1ed7 tr\u1ee3 c\u00e1c t\u1ed1c \u0111\u1ed9 OC-3 (155 Mbps), OC-12 (622 Mbps), OC-48 (2,5 Gbps) v\u00e0 cao h\u01a1n n\u1eefa.<\/p><\/li><li><p><strong><p>Future-Proofing:<\/p><\/strong> K\u1ebf th\u1eeba kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n l\u1ed7i, gi\u00e1m s\u00e1t v\u00e0 chuy\u1ec3n m\u1ea1ch b\u1ea3o v\u1ec7 t\u1ef1 \u0111\u1ed9ng m\u1ea1nh m\u1ebd c\u1ee7a SONET\/SDH.<\/p><\/li><li><p><strong>Hi\u1ec7u qu\u1ea3:<\/strong> Vi\u1ec7c bao b\u1ecdc tr\u1ef1c ti\u1ebfp c\u00e1c g\u00f3i gi\u00fap gi\u1ea3m \u0111\u1ed9 tr\u1ec5 so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n d\u1eabn \u0111a l\u1edbp truy\u1ec1n th\u1ed1ng.<\/p><\/li><li><p><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> L\u00fd t\u01b0\u1edfng cho c\u00e1c m\u1ea1ng l\u00f5i c\u1ee7a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-an-isp-internet-service-provider\/\">ISPs<\/a> v\u00e0 c\u00e1c doanh nghi\u1ec7p l\u1edbn y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t b\u0103ng th\u00f4ng cao c\u00f3 th\u1ec3 d\u1ef1 b\u00e1o \u0111\u01b0\u1ee3c.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><span style=\"color: rgb(9, 12, 30);\">\u2705 <\/span>\u1ee8ng d\u1ee5ng v\u00e0 T\u1ea7m quan tr\u1ecdng trong Ng\u00e0nh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">POS \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c m\u1ea1ng l\u00f5i c\u1ee7a ISP, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u doanh nghi\u1ec7p, n\u01a1i l\u01b0u l\u01b0\u1ee3ng IP kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn ph\u1ea3i t\u1ed3n t\u1ea1i song song v\u1edbi c\u00e1c m\u1ea1ng \u0111\u1ed3ng b\u1ed9 k\u1ebf th\u1eeba. Ngay c\u1ea3 trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i \u0111ang chuy\u1ec3n \u0111\u1ed5i sang Ethernet thu\u1ea7n t\u00fay v\u00e0 IP\/MPLS quang h\u1ecdc, POS v\u1eabn c\u00f2n li\u00ean quan khi k\u1ebft n\u1ed1i c\u00e1c h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba d\u1ef1a tr\u00ean SONET\/SDH.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><span style=\"color: rgb(9, 12, 30);\">\u2705 <\/span>POS Ho\u1ea1t \u0111\u1ed9ng Nh\u01b0 th\u1ebf N\u00e0o (Quy tr\u00ecnh \u0110\u01a1n gi\u1ea3n h\u00f3a)<\/h2>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>Bao b\u1ecdc G\u00f3i:<\/strong> C\u00e1c g\u00f3i IP \u2192 c\u00e1c khung PPP.<\/p><\/li><li><p><strong>\u00c1nh x\u1ea1:<\/strong> C\u00e1c khung PPP \u2192 V\u1ecf t\u1ea3i tr\u1ecdng \u0111\u1ed3ng b\u1ed9 (SPE) c\u1ee7a SONET\/SDH.<\/p><\/li><li><p><strong>Truy\u1ec1n d\u1eabn Quang:<\/strong> C\u00e1c khung di chuy\u1ec3n qua c\u00e1c \u0111\u01b0\u1eddng c\u00e1p quang v\u1edbi t\u1ed1c \u0111\u1ed9 cao.<\/p><\/li><li><p><strong>Gi\u1ea3i bao:<\/strong> Thi\u1ebft b\u1ecb nh\u1eadn tr\u00edch xu\u1ea5t PPP \u2192 c\u00e1c g\u00f3i IP \u0111\u1ec3 \u0111\u1ecbnh tuy\u1ebfn ti\u1ebfp.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Quy tr\u00ecnh n\u00e0y l\u00e0m n\u1ed5i b\u1eadt c\u00e1ch POS t\u1eadn d\u1ee5ng t\u00ednh \u0111\u00e1ng tin c\u1eady v\u00e0 \u0111\u1ed3ng b\u1ed9 c\u1ee7a SONET\/SDH trong khi v\u1eabn \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c l\u01b0u l\u01b0\u1ee3ng g\u00f3i hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><span style=\"color: rgb(9, 12, 30);\">\u2705 <\/span>K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>K\u1ebft n\u1ed1i Packet over SONET\/SDH (POS)<\/strong> POS l\u00e0 c\u1ea7u n\u1ed1i gi\u1eefa c\u00e1c m\u1ea1ng quang truy\u1ec1n th\u1ed1ng v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng hi\u1ec7n \u0111\u1ea1i d\u1ef1a tr\u00ean IP. Kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn t\u1ed1c \u0111\u1ed9 cao, \u0111\u00e1ng tin c\u1eady v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p khi\u1ebfn POS tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng \u0111\u1ed1i v\u1edbi c\u00e1c ISP, nh\u00e0 khai th\u00e1c vi\u1ec5n th\u00f4ng v\u00e0 m\u1ea1ng doanh nghi\u1ec7p ph\u1ee5 thu\u1ed9c v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng SONET\/SDH.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng ty nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\"><strong>LINK-PP<\/strong><\/a>, vi\u1ec7c hi\u1ec3u r\u00f5 POS gi\u00fap t\u1ed1i \u01b0u h\u00f3a<a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"> b\u1ed9 thu ph\u00e1t quang t\u1ed1c \u0111\u1ed9 cao<\/a> cho c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u n\u0103ng cao, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c m\u1ea1ng l\u00f5i SONET\/SDH c\u0169ng nh\u01b0 c\u00e1c m\u1ea1ng chuy\u1ec3n m\u1ea1ch g\u00f3i hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<div><div widgetid=\"3ef779ac451211f099380a58fbc66727\" format=\"embedded\" data-widget-id=\"3ef779ac451211f099380a58fbc66727\" data-mode=\"production.zh\" style=\"display: block;\"><\/div><\/div>\n\n\n\n<script src=\"https:\/\/cdn.mylandingpages.co\/widgets\/platform\/platform.widget.js\" async=\"true\"><\/script>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 G\u00f3i qua SONET\/SDH (POS), c\u00f4ng ngh\u1ec7 cho ph\u00e9p truy\u1ec1n t\u1ea3i IP t\u1ed1c \u0111\u1ed9 cao tr\u00ean c\u00e1c m\u1ea1ng quang, v\u1edbi nh\u1eefng th\u00f4ng tin chi ti\u1ebft v\u1ec1 bao b\u1ecdc PPP v\u00e0 hi\u1ec7u n\u0103ng c\u1ee7a SONET\/SDH.<\/p>","protected":false},"author":1,"featured_media":4012,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[26],"class_list":["post-4014","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=4014"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4014\/revisions"}],"predecessor-version":[{"id":11377,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4014\/revisions\/11377"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4012"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}