![\"\"](\"http:\/\/tech.sosthe.sk\/wp-content\/uploads\/2020\/04\/000535.gif\")
<\/p>\n
![\"\"](\"http:\/\/tech.sosthe.sk\/wp-content\/uploads\/2020\/04\/000536.jpg\")
<\/p>\n
Hviezda (star) – Hub and Spoke<\/h3>\n
Hviezda<\/strong><\/em> je dnes najpou\u017e\u00edvanej\u0161ia topol\u00f3gia pre Ethernet. Je tu centr\u00e1lny prvok, ktor\u00fd realizuje prepojenie zariaden\u00ed, a do neho s\u00fa pripojen\u00e9 jednotliv\u00e9 zariadenia. Ako centr\u00e1lny prvok sl\u00fa\u017ei hub alebo switch, ale z in\u00e9ho poh\u013eadu sa m\u00f4\u017ee jedna\u0165 aj o router.<\/p>\n Obdobn\u00e1 je\u00a0Roz\u0161\u00edren\u00e1 topol\u00f3gia hviezda<\/em><\/strong>\u00a0, ktor\u00e1 vznikne, ke\u010f nieko\u013eko samostatn\u00fdch\u00a0hviezd<\/em> prepoj\u00edme dohromady cez centr\u00e1lny prvok. V praxi sa dnes \u010dasto pou\u017e\u00edva troj vrstvov\u00e1 topol\u00f3gia (pr\u00edpadne dvoj vrstvov\u00e1, kedy sa jedna vrstva vynech\u00e1) vyu\u017e\u00edvaj\u00faca prepojenie do hviezdy. V najvy\u0161\u0161ej vrstve je jeden alebo dva (pre redundanciu) switche, tzv. Jadro<\/em><\/strong>\u00a0(core).\u00a0Druh\u00e1 vrstva obsahuje nieko\u013eko switchov pripojen\u00fdch do jadra a zvan\u00fdch\u00a0distribu\u010dn\u00e1<\/em><\/strong>\u00a0(distributed).\u00a0Posledn\u00e1 vrstva, pripojen\u00e1 do distribu\u010dnej, je\u00a0pr\u00edstupov\u00e1<\/em><\/strong>\u00a0(access) a do nej sa prip\u00e1jaj\u00fa stanice a servery.\u00a0Niektor\u00e9 d\u00f4le\u017eit\u00e9 servery sa m\u00f4\u017eu pripoji\u0165 priamo do distribu\u010dnej vrstvy.\u00a0Zapojenie, kedy zdvoj\u00edme centr\u00e1lny prvok, sa tie\u017e ozna\u010duje ako Dvojit\u00e1 hviezda<\/strong><\/em>\u00a0.<\/p>\n Topol\u00f3gia hviezda sa tie\u017e ozna\u010duje ako zapojenie\u00a0Hub and Spoke<\/strong><\/em>\u00a0.\u00a0Tu nie je pou\u017eit\u00fd term\u00edn\u00a0hub<\/strong><\/em> ako akt\u00edvny sie\u0165ov\u00fd prvok, ale je to odvoden\u00e9 od ozna\u010denia pre koleso na voze, kde m\u00e1me stred (Hub) a l\u00fa\u010de (Spoke). Tento term\u00edn sa pou\u017e\u00edva aj u routovania alebo VPN, kedy Hub<\/strong><\/em>\u00a0je centr\u00e1la \/ centr\u00e1lny prvok a\u00a0Spoke<\/strong><\/em>\u00a0s\u00fa pobo\u010dky.<\/p>\n V\u00a0\u00a0kruhovej topol\u00f3gii<\/strong><\/em>\u00a0je ka\u017ed\u00fd uzol pripojen\u00fd k dvom susedn\u00fdm a dohromady tvoria kruh.\u00a0\u0160tandardne existuje iba jedna cesta medzi dvoma uzlami.\u00a0Roz\u0161\u00edren\u00edm je, \u017ee komunik\u00e1cia prebieha v smere aj proti smeru hodinov\u00fdch ru\u010di\u010diek.\u00a0Pou\u017e\u00edva sa pre sie\u0165ov\u00e9 technol\u00f3gie FDDI a Token Ring.<\/p>\n V topol\u00f3gii mesh s\u00fa uzly prepojen\u00e9 s viacer\u00fdmi susedmi.\u00a0Bu\u010f sa m\u00f4\u017ee jedna\u0165 o\u00a0Full Mesh<\/strong><\/em> (pln\u00fa mrie\u017eku), ke\u010f je ka\u017ed\u00fd uzol spojen\u00fd so v\u0161etk\u00fdmi ostatn\u00fdmi, tak\u017ee m\u00f4\u017ee komunikova\u0165 s ka\u017ed\u00fdm priamo a v pr\u00edpade v\u00fdpadku nejakej linky m\u00f4\u017ee jednoducho n\u00e1js\u0165 cestu. Ale pri viac uzloch sa jedn\u00e1 o zlo\u017eit\u00e9 a drah\u00e9 zapojenia. Alebo o\u00a0Partial Mesh<\/strong><\/em>\u00a0(\u010diasto\u010dn\u00fa mrie\u017eku), ke\u010f niektor\u00e9 uzly s\u00fa priamo spojen\u00e9 (point-to-point) s viacer\u00fdmi in\u00fdmi uzlami.<\/p>\n Logick\u00e1 Full Mesh sa pou\u017e\u00edva napr\u00edklad pre routovanie BGP protokolom.\u00a0\u010ealej sa Mesh topol\u00f3gie pou\u017e\u00edva v niektor\u00fdch WiFi sie\u0165ach.<\/p>\n Zbernica (bus) Zbernica bola pou\u017e\u00edvan\u00e1 v prv\u00fdch dob\u00e1ch Ethernetu a realizovala sa pomocou koaxi\u00e1lneho k\u00e1bla a BNC konektorov, na konci musel by\u0165 v\u017edy termin\u00e1tor. V\u0161etky…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"_links":{"self":[{"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/posts\/556"}],"collection":[{"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/comments?post=556"}],"version-history":[{"count":3,"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/posts\/556\/revisions"}],"predecessor-version":[{"id":636,"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/posts\/556\/revisions\/636"}],"wp:attachment":[{"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/media?parent=556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/categories?post=556"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/tech.sosthe.sk\/index.php\/wp-json\/wp\/v2\/tags?post=556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"http:\/\/tech.sosthe.sk\/wp-content\/uploads\/2020\/04\/000539.gif\")
<\/p>\n![\"\"](\"http:\/\/tech.sosthe.sk\/wp-content\/uploads\/2020\/04\/000540.jpg\")
<\/p>\n![\"\"](\"http:\/\/tech.sosthe.sk\/wp-content\/uploads\/2020\/04\/000822.gif\")
<\/p>\nKruh (ring)<\/h3>\n
![\"\"](\"http:\/\/tech.sosthe.sk\/wp-content\/uploads\/2020\/04\/000537.gif\")
<\/p>\n![\"\"](\"http:\/\/tech.sosthe.sk\/wp-content\/uploads\/2020\/04\/000538.jpg\")
<\/p>\nMrie\u017eka (mesh)<\/h3>\n
![\"\"](\"http:\/\/tech.sosthe.sk\/wp-content\/uploads\/2020\/04\/000823.gif\")
<\/p>\n","protected":false},"excerpt":{"rendered":"