{"id":45245,"date":"2026-07-02T09:01:04","date_gmt":"2026-07-02T00:01:04","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/07\/02\/45245\/"},"modified":"2026-07-02T09:01:04","modified_gmt":"2026-07-02T00:01:04","slug":"%ec%bb%b4%ed%93%a8%ed%84%b0%eb%84%a4%ed%8a%b8%ec%9b%8c%ed%81%ac_osi-%eb%aa%a8%eb%8d%b8%ea%b3%bc-tcp-ip-%eb%aa%a8%eb%8d%b8%ec%9d%98-%ea%b0%81-%ea%b3%84%ec%b8%b5%ec%9d%98-%ea%b8%b0%eb%8a%a5%ec%9d%84","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/07\/02\/45245\/","title":{"rendered":"\ucef4\ud4e8\ud130\ub124\ud2b8\uc6cc\ud06c_OSI \ubaa8\ub378\uacfc TCP IP \ubaa8\ub378\uc758 \uac01 \uacc4\uce35\uc758 \uae30\ub2a5\uc744 \uc815\ub9ac\ud558\uace0 \ube44\uad50\ud558\uc5ec \uc124\uba85\ud558\ub77c"},"content":{"rendered":"

<\/p>\n

\ubaa9\ucc28<\/strong><\/p>\n

1. OSI \ubaa8\ub378
\n2. TCP\/IP \ubaa8\ub378
\n3. OSI \ubaa8\ub378\uacfc TCP\/IP\uc758 \uacc4\uce35\ubcc4 \ube44\uad50
\n4. \uc815\ub9ac \ubc0f \uc18c\uac10
\n5. \ucc38\uace0\ubb38\ud5cc<\/p>\n

\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n

OSI \ubaa8\ub378\uc740 \ub124\ud2b8\uc6cc\ud06c\ub97c 7\uac1c\uc758 \uacc4\uce35\uc73c\ub85c \uad6c\ubd84\ud558\uc5ec \ud45c\uc900 \ud504\ub85c\ud1a0\ucf5c\uc744 \ud1b5\ud574 \ub2e4\uc591\ud55c \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc774 \uc0c1\ud638 \ud1b5\uc2e0\uc774 \uac00\ub2a5\ud558\ub3c4\ub85d \uad6d\uc81c\ud45c\uc900\ud654\uae30\uad6c\uc5d0\uc11c \ub9cc\ub4e0 \ubaa8\ub378\uc774\ub2e4. \uc989, \uc0c1\uc774\ud55c \ucef4\ud4e8\ud130 \ub124\ud2b8\uc6cc\ud06c \uc2dc\uc2a4\ud15c\uc744 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \ub17c\ub9ac\uc801 \ubcc0\uacbd \uc5c6\uc774 \uc11c\ub85c \ud1b5\uc2e0\ud560 \uc218 \uc788\ub3c4\ub85d \ub9cc\ub4dc\ub294 \ud45c\uc900 \ubaa8\ub378\uc744 \ub9d0\ud55c\ub2e4. OSI \ubaa8\ub378\uc740 \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc744 7\uac1c\uc758 \ucd94\uc0c1\uc801\uc778 \uacc4\uce35\uc73c\ub85c \ub098\ub20c \uc218 \uc788\uc73c\uba70, \uac01 \uacc4\uce35\uc740 \ud2b9\uc815 \uc791\uc5c5\uc744 \ucc98\ub9ac\ud568\uacfc \ub3d9\uc2dc\uc5d0 \uc704\uc640 \uc544\ub798\uc758 \uacc4\uce35\uacfc \ud1b5\uc2e0\ud55c\ub2e4. <\/p>\n

(1) \ubb3c\ub9ac \uacc4\uce35 (Physical Layer)
\n OSI \ubaa8\ub378\uc758 \ucd5c\ud558\uc704 \uacc4\uce35\uc778 \ubb3c\ub9ac \uacc4\uce35\uc740 \uc0c1\uc704 \uacc4\uce35\uc5d0\uc11c \uc804\uc1a1\ub41c \ub370\uc774\ud130\ub97c \ub77c\uc6b0\ud130, \uc2a4\uc704\uce6d \ud5c8\ube0c, \ucf00\uc774\ube14 \ub4f1\uc758 \ubb3c\ub9ac\uc801 \uc7a5\ube44\ub97c \ud1b5\ud574 \ub2e4\ub978 \uc2dc\uc2a4\ud15c\uc5d0 \uc804\uae30\uc801\uc778 \uc2e0\ud638\ub85c \uc804\uc1a1\ud558\ub294 \uc5ed\ud560\uc744 \ud55c\ub2e4. \ubb3c\ub9ac \uacc4\uce35\uc740 0\uacfc 1\uc758 \ubb38\uc790\uc5f4 \uc2e0\ud638 \uaddc\uce59\uc73c\ub85c \ubcc0\ud658\ud558\uace0 \uad6c\ubcc4\ud55c\ub2e4.<\/p>\n

(2) \ub370\uc774\ud130 \ub9c1\ud06c \uacc4\uce35 (Data Link Layer)
\n \ub370\uc774\ud130 \ub9c1\ud06c \uacc4\uce35\uc740 \ub124\ud2b8\uc6cc\ud06c \uae30\uae30\ub4e4 \uc0ac\uc774\uc5d0\uc11c \ub370\uc774\ud130\uc758 \ud750\ub984\uacfc \uc624\ub958\ub97c \uc81c\uc5b4\ub294 \uc5ed\ud560\uc744 \ud558\uba70, \uc2dc\uc2a4\ud15c \uc0ac\uc774\uc5d0\uc11c \uc624\ub958\uac00 \uc5c6\ub294 \ub370\uc774\ud130\ub97c \uc804\uc1a1\ud558\uae30 \uc704\ud574 \ud328\ud0b7\uc744 \ub354 \uc791\uc740 \uc870\uac01\uc778 \ud504\ub808\uc784\uc73c\ub85c \uad6c\uc131\ud558\uc5ec \ubb3c\ub9ac \uacc4\uce35\uc73c\ub85c \uc804\uc1a1\ud55c\ub2e4.<\/p>\n

(3) \ub124\ud2b8\uc6cc\ud06c \uacc4\uce35 (Network Layer)
\n \ub124\ud2b8\uc6cc\ud06c \uacc4\uce35\uc740 \ub77c\uc6b0\ud305 \uc54c\uace0\ub9ac\uc998\uc73c\ub85c \ucd5c\uc801\uc758 \uacbd\ub85c\ub97c \uc120\ud0dd\ud558\uace0 \uc1a1\uc2e0\uce21\uc73c\ub85c\ubd80\ud130 \uc218\uc2e0\uce21\uc73c\ub85c \ub370\uc774\ud130\ub97c \uc804\uc1a1\ud558\ub294 \uc5ed\ud560\uc744 \ud558\uba70, \ucd5c\uc0c1\uc758 \ubb3c\ub9ac\uc801 \uacbd\ub85c\ub97c \ucc3e\ub294 \uacfc\uc815\uc744 \ub77c\uc6b0\ud305\uc774\ub77c\uace0 \ud55c\ub2e4. \ub370\uc774\ud130\ub97c \ud328\ud0b7 \ub2e8\uc704\ub85c \ubd84\ud560\ud558\uc5ec \uac01 \ud328\ud0b7\uc774 \ubaa9\uc801\uc9c0\uae4c\uc9c0 \uc131\uacf5\uc801\uc774\uace0 \ud6a8\uacfc\uc801\uc73c\ub85c \uc804\ub2ec\ub418\ub3c4\ub85d \ud558\uba70, \uc804\uc1a1\ub41c \ud328\ud0b7\uc740 \ub2e4\uc2dc \ud569\uccd0\uc9c4\ub2e4. <\/p>\n

(4) \uc804\uc1a1 \uacc4\uce35 (Transport Layer)
\n \uc138\uc158 \uacc4\uce35\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uac00\uc838\uc640 \uc804\uc1a1 \uacc4\uce35\uc73c\ub85c \ubcf4\ub0b4\uae30 \uc804\uc5d0 \uc138\uadf8\uba3c\ud2b8\ub77c\ub294 \uc870\uac01\uc73c\ub85c \ubd84\ud560\ud558\ub294 \uc5ed\ud560\uc744 \ud55c\ub2e4. \ub610\ud55c \uc5f0\uacb0 \uc18d\ub3c4\uac00 \uc11c\ub85c \ub2e4\ub978 \uc1a1\uc2e0\uce21\uacfc \uc218\uc2e0\uce21\uc5d0 \ub300\ud55c \ucd5c\uc801\uc758 \uc804\uc1a1 \uc18d\ub3c4\ub97c \uacb0\uc815\ud558\ub294 \ud750\ub984 \uc81c\uc5b4\uc640 \uc218\uc2e0 \ub370\uc774\ud130\uc758 \uc644\ub8cc\ub97c \ud655\uc778\ud558\uace0 \uc218\uc2e0\ub418\uc9c0 \uc54a\uc740 \ub370\uc774\ud130\uc758 \uc7ac\uc804\uc1a1\uc744 \uc694\uccad\ud558\ub294 \ub4f1\uc758 \uc624\ub958 \uc81c\uc5b4\ub97c \uc218\ud589\ud55c\ub2e4.<\/p>\n

\ucd9c\ucc98 : \ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\ubaa9\ucc28 1. OSI \ubaa8\ub378 2. TCP\/IP \ubaa8\ub378 3. OSI \ubaa8\ub378\uacfc TCP\/IP\uc758 \uacc4\uce35\ubcc4 \ube44\uad50 4. \uc815\ub9ac \ubc0f \uc18c\uac10 5. \ucc38\uace0\ubb38\ud5cc \ubcf8\ubb38\ub0b4\uc6a9 OSI \ubaa8\ub378\uc740 \ub124\ud2b8\uc6cc\ud06c\ub97c 7\uac1c\uc758 \uacc4\uce35\uc73c\ub85c \uad6c\ubd84\ud558\uc5ec \ud45c\uc900 \ud504\ub85c\ud1a0\ucf5c\uc744 \ud1b5\ud574 \ub2e4\uc591\ud55c \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc774 \uc0c1\ud638 \ud1b5\uc2e0\uc774 \uac00\ub2a5\ud558\ub3c4\ub85d \uad6d\uc81c\ud45c\uc900\ud654\uae30\uad6c\uc5d0\uc11c \ub9cc\ub4e0 \ubaa8\ub378\uc774\ub2e4. \uc989, \uc0c1\uc774\ud55c \ucef4\ud4e8\ud130 \ub124\ud2b8\uc6cc\ud06c \uc2dc\uc2a4\ud15c\uc744 \ud558\ub4dc\uc6e8\uc5b4\uc640 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc758 \ub17c\ub9ac\uc801 \ubcc0\uacbd \uc5c6\uc774 \uc11c\ub85c \ud1b5\uc2e0\ud560 \uc218 \uc788\ub3c4\ub85d \ub9cc\ub4dc\ub294 \ud45c\uc900 \ubaa8\ub378\uc744 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[49888,3364,55944,6654,55945,2419],"class_list":["post-45245","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-cdc","tag-maslow--","tag-osi-","tag-sns--","tag-tcp-ip-","tag-2419"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/45245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=45245"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/45245\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=45245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=45245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=45245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}