{"id":11143,"date":"2025-09-15T11:21:28","date_gmt":"2025-09-15T11:21:28","guid":{"rendered":"https:\/\/csiag.eu\/?p=11143"},"modified":"2025-09-15T11:31:02","modified_gmt":"2025-09-15T11:31:02","slug":"prepinace-a-kabelaz-sietovej-technologie","status":"publish","type":"post","link":"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/","title":{"rendered":"Sie\u0165ov\u00e9 technol\u00f3gie - prep\u00edna\u010de a kabel\u00e1\u017e"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Obsah<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Netzwerk-Kabel\" >Sie\u0165ov\u00fd k\u00e1bel<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Abschirmung\" >Tienenie<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Klassifizierung_CAT\" >Klasifik\u00e1cia (CAT)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Glasfaser_vs_Kupfer\" >Optick\u00e9 vl\u00e1kna vs. me\u010f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Preisfrage\" >Ot\u00e1zka na cenu<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Hub_vs_Switch\" >Rozbo\u010dova\u010d vs. prep\u00edna\u010d<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Hub\" >M\u0155tvica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Switch\" >Prep\u00edna\u010d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Ports\" >Porty<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Switches_%E2%80%93_unmanaged\" >Prep\u00edna\u010de - (ne)riaden\u00e9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Hersteller_von_Switches\" >V\u00fdrobca sp\u00edna\u010dov<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Cisco\" >Cisco<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Ubiquiti\" >Ubiquiti<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u010cas \u010d\u00edtania<\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">z\u00e1pisnice<\/span><\/span>\n<p>Prep\u00edna\u010de a kabel\u00e1\u017e zohr\u00e1vaj\u00fa \u00fastredn\u00fa \u00falohu v sie\u0165ovej technol\u00f3gii. Rozdiely a krit\u00e9ri\u00e1 v\u00fdberu, ktor\u00e9 je potrebn\u00e9 zv\u00e1\u017ei\u0165, s\u00fa uveden\u00e9 ni\u017e\u0161ie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Netzwerk-Kabel\"><\/span>Sie\u0165ov\u00fd k\u00e1bel<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Abschirmung\"><\/span>Tienenie<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Sie\u0165ov\u00e9 k\u00e1ble s\u00fa navrhnut\u00e9 ako 4-p\u00e1rov\u00e9 kr\u00faten\u00e9 k\u00e1ble so spolo\u010dn\u00fdm meden\u00fdm opleten\u00edm na tienenie vonkaj\u0161\u00edch ru\u0161iv\u00fdch pol\u00ed (S\/FTP - <em><strong>S<\/strong>vytvoren\u00e9 <strong>F<\/strong>naolejovan\u00e9 <strong>T<\/strong>kr\u00faten\u00e9 <strong>P<\/strong>vzduch<\/em>). Kr\u00fatenie eliminuje vn\u00fatorne sa vyskytuj\u00face interferen\u010dn\u00e9 polia.<br>K\u00e1ble s jednotliv\u00fdmi p\u00e1rmi vodi\u010dov dodato\u010dne tienen\u00fdmi opleten\u00edm sa ozna\u010duj\u00fa ako k\u00e1ble S\/STP (<em><strong>S<\/strong>vytvoren\u00e9 <strong>S<\/strong>hielded <strong>T<\/strong>kr\u00faten\u00e9<strong> P<\/strong>vzduch<\/em>). <br>Pre k\u00e1ble FTP (<em><em><strong>F<\/strong>naolejovan\u00e9 <strong>T<\/strong>kr\u00faten\u00e9 <strong>P<\/strong>vzduch<\/em><\/em>) sa namiesto meden\u00e9ho opletenia pou\u017e\u00edva f\u00f3lia potiahnut\u00e1 hlin\u00edkom.<br>Takzvan\u00fd odtokov\u00fd vodi\u010d sl\u00fa\u017ei vo v\u0161etk\u00fdch variantoch ako uzem\u0148ovac\u00ed vodi\u010d.<\/p>\n\n\n\n<p>k\u00e1ble UTP (<em><strong>U<\/strong>tienen\u00e9 <strong>T<\/strong>kr\u00faten\u00e9 <strong>P<\/strong>vzduch<\/em>), ktor\u00e9 nemaj\u00fa \u017eiadne tienenie, a preto nemaj\u00fa dvojvodi\u010dov\u00e9 pripojenie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Klassifizierung_CAT\"><\/span>Klasifik\u00e1cia (CAT)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Kateg\u00f3rie CAT1 a\u017e CAT6(A) nie s\u00fa zahrnut\u00e9, preto\u017ee u\u017e nesp\u013a\u0148aj\u00fa dne\u0161n\u00e9 po\u017eiadavky na \u0161\u00edrku p\u00e1sma, ak sa vy\u017eaduje 10 Gbit\/s Ethernet alebo vy\u0161\u0161ia.<\/p>\n\n\n\n<p>P\u00e1ry vodi\u010dov CAT7 s\u00fa samostatne tienen\u00e9. Sp\u013a\u0148aj\u00fa po\u017eiadavky <a href=\"https:\/\/de.wikipedia.org\/wiki\/IEEE_802.3an\" target=\"_blank\" rel=\"noopener\">IEEE 802.3an<\/a>mo\u017eno pou\u017ei\u0165 a\u017e do frekvencie 600 MHz, CAT7A a\u017e do frekvencie 1 000 MHz a r\u00fdchlosti prenosu d\u00e1t a\u017e do 10 Gbit\/s v aplik\u00e1ci\u00e1ch 10GBASE-T.<br>Maxim\u00e1lna d\u013a\u017eka k\u00e1bla je 100 m pri menovitej prenosovej r\u00fdchlosti.<\/p>\n\n\n\n<p>Najvy\u0161\u0161iu prenosov\u00fa r\u00fdchlos\u0165 v s\u00fa\u010dasnosti dosahuj\u00fa k\u00e1ble kateg\u00f3rie CAT8.2, ktor\u00e9 maj\u00fa \u0161\u00edrku p\u00e1sma 2 Gbit\/s a prenosov\u00fa r\u00fdchlos\u0165 40 Gbit\/s pre aplik\u00e1cie 25 GBASE-T a 40 GBASE-T.<br>Pri 40GBASE-T je d\u013a\u017eka k\u00e1bla obmedzen\u00e1 na 30 m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Glasfaser_vs_Kupfer\"><\/span>Optick\u00e9 vl\u00e1kna vs. me\u010f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>V\u00fdkonnos\u0165 meden\u00fdch k\u00e1blov, najm\u00e4 CAT8, je v s\u00fa\u010dasnosti porovnate\u013en\u00e1 s optick\u00fdmi vl\u00e1knami. Napriek tomu existuje jeden rozdiel, ktor\u00fd sa d\u00e1 realizova\u0165 len s meden\u00fdmi k\u00e1blami, a to PoE (<em><strong>P<\/strong>ower <strong>o<\/strong>ver <strong>E<\/strong>thernet<\/em>), nap\u00e1janie spotrebi\u010dov, ako s\u00fa kamery, prostredn\u00edctvom ethernetov\u00e9ho k\u00e1bla.<\/p>\n\n\n\n<p>Ak sa PoE nevy\u017eaduje, trendom s\u00fa optick\u00e9 vl\u00e1kna, hoci manipul\u00e1cia s nimi, napr\u00edklad mont\u00e1\u017e z\u00e1str\u010dkov\u00fdch spojov, je ove\u013ea zlo\u017eitej\u0161ia a vy\u017eaduje si \u0161peci\u00e1lne n\u00e1stroje.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Preisfrage\"><\/span>Ot\u00e1zka na cenu<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Cenov\u00fd rozdiel medzi CAT7(A) a CAT8(.1\/.2) je pri 10% zanedbate\u013en\u00fd. M\u00f4\u017eete po\u010d\u00edta\u0165 s pribli\u017ene 10 EUR za 3 m CAT7 a pribli\u017ene 11 EUR za CAT8.1.<br>Je v\u0161ak d\u00f4le\u017eit\u00e9 ma\u0165 na pam\u00e4ti, \u017ee aj infra\u0161trukt\u00fara, ako napr\u00edklad prep\u00edna\u010de, mus\u00ed sp\u013a\u0148a\u0165 po\u017eiadavky na klasifik\u00e1ciu, ak nem\u00e1 by\u0165 \u00fazkym miestom v d\u00e1tovom toku.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hub_vs_Switch\"><\/span>Rozbo\u010dova\u010d vs. prep\u00edna\u010d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Rozbo\u010dova\u010de a prep\u00edna\u010de sa pou\u017e\u00edvaj\u00fa na distrib\u00faciu prich\u00e1dzaj\u00faceho d\u00e1tov\u00e9ho toku, napr. zo smerova\u010da, prostredn\u00edctvom dostupn\u00fdch portov\u00fdch pripojen\u00ed do koncov\u00fdch zariaden\u00ed, ako s\u00fa po\u010d\u00edta\u010de, tla\u010diarne, skenery, kamery alebo in\u00e9 sie\u0165ov\u00e9 zariadenia.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hub\"><\/span>M\u0155tvica<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Rozbo\u010dova\u010d rozde\u013euje prich\u00e1dzaj\u00faci d\u00e1tov\u00fd tok rovnomerne na v\u0161etky porty. Pripojen\u00ed \u00fa\u010dastn\u00edci prij\u00edmaj\u00fa d\u00e1tov\u00fd tok.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Switch\"><\/span>Prep\u00edna\u010d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Prep\u00edna\u010d analyzuje hlavi\u010dku prijat\u00e9ho d\u00e1tov\u00e9ho toku. Rozpoznan\u00e1 adresa MAC definuje cie\u013eov\u00e9 zariadenie. Ak adresa MAC nie je rozpoznan\u00e1, po\u0161le d\u00e1tov\u00fd bal\u00edk na v\u0161etky porty. Akon\u00e1hle pr\u00edslu\u0161n\u00e9 cie\u013eov\u00e9 zariadenie odpovie, odo\u0161le svoju adresu MAC, ktor\u00fa prep\u00edna\u010d n\u00e1sledne zap\u00ed\u0161e do svojej pam\u00e4te CAM (<em><strong>C<\/strong>ontent <strong>A<\/strong>obliekanie <strong>M<\/strong>emory<\/em>), tie\u017e tabu\u013eka SAT (<em><strong>S<\/strong>ource-<strong>A<\/strong>\u0161aty -<strong>T<\/strong>schopn\u00fd<\/em>). To znamen\u00e1, \u017ee pakety m\u00f4\u017eu by\u0165 okam\u017eite presmerovan\u00e9 na spr\u00e1vnu cie\u013eov\u00fa adresu pomocou adresy MAC.<br>Priame priradenie prostredn\u00edctvom adresy MAC zabra\u0148uje kol\u00edzi\u00e1m medzi d\u00e1tov\u00fdmi paketmi a umo\u017e\u0148uje plne duplexn\u00fa komunik\u00e1ciu, ktor\u00e1 optimalizuje d\u00e1tov\u00fa priepustnos\u0165.<\/p>\n\n\n\n<p>Prep\u00edna\u010de m\u00f4\u017eu vytv\u00e1ra\u0165 aj virtu\u00e1lne siete LAN (<em>VLAN<\/em>) a rozdeli\u0165 d\u00e1tov\u00fa prev\u00e1dzku do r\u00f4znych logick\u00fdch siet\u00ed, a t\u00fdm ich spracova\u0165 oddelene od seba.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ports\"><\/span>Porty<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Po\u010det portov je variabiln\u00fd, od 4, 8, 16, 24 a\u017e po 48 portov, v\u0161etko je dostupn\u00e9 na trhu.<\/p>\n\n\n\n<p>Preto by ste si mali najprv pozna\u010di\u0165 v\u0161etky zariadenia, ktor\u00e9 maj\u00fa by\u0165 pripojen\u00e9 k prep\u00edna\u010du prostredn\u00edctvom siete LAN.<\/p>\n\n\n\n<p>Pri nap\u00e1jan\u00ed koncov\u00fdch zariaden\u00ed prostredn\u00edctvom PoE je potrebn\u00e9 zoh\u013eadni\u0165 spotrebu energie. Je to preto, \u017ee s\u00fa\u010det v\u0161etk\u00fdch portov PoE ur\u010duje po\u017eadovan\u00fd celkov\u00fd v\u00fdkon nap\u00e1jania prep\u00edna\u010da - a teda aj cenu.<\/p>\n\n\n\n<p>Napr\u00edklad 16portov\u00fd prep\u00edna\u010d m\u00f4\u017ee poskytova\u0165 12 portov bez PoE a 4 porty PoE. Preto je d\u00f4le\u017eit\u00e9 skontrolova\u0165, ko\u013eko portov PoE je skuto\u010dne k dispoz\u00edcii - a s ak\u00fdm v\u00fdkonom.<\/p>\n\n\n\n<p>Vzh\u013eadom na zvy\u010dajne rast\u00facu sie\u0165ov\u00fa infra\u0161trukt\u00faru je potrebn\u00e9 zv\u00e1\u017ei\u0165 ur\u010dit\u00fa rezervu v po\u010dte portov a portov PoE.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Switches_%E2%80%93_unmanaged\"><\/span>Prep\u00edna\u010de - (ne)riaden\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>O trh sa del\u00ed mnoho v\u00fdrobcov. Pod\u013ea m\u00f4jho n\u00e1zoru je v\u017edy vhodn\u00e9 vybra\u0165 si v\u00fdrobcu, ktor\u00fd p\u00f4sob\u00ed v obchodnom sektore, a preto m\u00e1 v tomto segmente trhu dobr\u00e9 sk\u00fasenosti.<\/p>\n\n\n\n<p>Je potrebn\u00e9 rozli\u0161ova\u0165 medzi tzv. <em>spravovan\u00e9<\/em> a <em>nespravovan\u00e9<\/em> Prep\u00edna\u010de. Iba <em>spravovan\u00e9<\/em> Prep\u00edna\u010de s\u00fa konfigurovate\u013en\u00e9. Aj ke\u010f je konfigurovate\u013enos\u0165 na za\u010diatku pre jednotliv\u00e9ho pou\u017e\u00edvate\u013ea zriedkavo d\u00f4le\u017eit\u00e1, ako to zvy\u010dajne v \u017eivote b\u00fdva, \u010dasom sa dopyt zvy\u0161uje a potreba mo\u017enosti konfigur\u00e1cie sa st\u00e1va predv\u00eddate\u013enou.<\/p>\n\n\n\n<p>Jednoduchos\u0165 konfigur\u00e1cie sa zni\u017euje s rast\u00facou profesionalitou a s\u00favisiacim n\u00e1rastom administrat\u00edvnej zlo\u017eitosti.<\/p>\n\n\n\n<p>Prep\u00edna\u010d v\u0161ak v\u017edy \"funguje\" v z\u00e1kladnej tov\u00e1renskej konfigur\u00e1cii. To znamen\u00e1, \u017ee - zatia\u013e - nie je potrebn\u00e9 \u017eiadne \u00fasilie o konfigur\u00e1ciu, hoci je to volite\u013en\u00e9.<\/p>\n\n\n\n<p>V tomto oh\u013eade sa teraz m\u00f4\u017eeme spo\u013eahn\u00fa\u0165 na <em>spravovan\u00e9<\/em> prep\u00edna\u010de.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hersteller_von_Switches\"><\/span>V\u00fdrobca sp\u00edna\u010dov<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Pod\u013ea m\u00f4jho n\u00e1zoru sa ag\u00f3nia v\u00fdberu obmedzuje na dvoch v\u00fdrobcov. Ka\u017ed\u00fd, kto m\u00e1 bl\u00edzko k spolo\u010dnosti Cisco, si ju bezpochyby vyberie. Ka\u017ed\u00fd, kto e\u0161te nie je zaujat\u00fd, nem\u00e1 k dispoz\u00edcii nekone\u010dn\u00fd rozpo\u010det a nie je profesion\u00e1lom v oblasti podnikania, pokia\u013e ide o siete, sa nau\u010d\u00ed oceni\u0165 Ubiquiti.<\/p>\n\n\n\n<p>Obaja v\u00fdrobcovia maj\u00fa spolo\u010dn\u00e9 to, \u017ee v\u00e4\u010d\u0161ie prep\u00edna\u010de (v niektor\u00fdch pr\u00edpadoch od 8 alebo 16 portov) spravidla poskytuj\u00fa uplink porty (SFP\/SFP+ s r\u00fdchlos\u0165ou 16 Gbit\/s alebo Enhanced Quad-Small Form-factor Pluggable s r\u00fdchlos\u0165ou 40 Gbit\/s (QSFP+)) prostredn\u00edctvom optick\u00fdch pripojen\u00ed, zvy\u010dajne 2 alebo 4.<br>QSFP-DD (Double Density) podporuje r\u00fdchlos\u0165 a\u017e 56 GBit\/s a 400 Gbit\/s.<\/p>\n\n\n\n<p>Maxim\u00e1lna d\u013a\u017eka k\u00e1bla pre uplink porty pod\u013ea vy\u0161\u0161ie uveden\u00fdch noriem je 550 m (multimode) alebo 10 km (singlemode LX), alebo 40 km (singlemode EX) a 80 km (singlemode ZX) v z\u00e1vislosti od typu vl\u00e1kna. <\/p>\n\n\n\n<p>Moduly CWDM a DWDM umo\u017e\u0148uj\u00fa prenos na vzdialenos\u0165 a\u017e 80 alebo 120 km, ak je k dispoz\u00edcii zodpovedaj\u00faci prenosov\u00fd v\u00fdkon a citlivos\u0165 pr\u00edjmu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cisco\"><\/span>Cisco<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Najzn\u00e1mej\u0161\u00edm v\u00fdrobcom je pravdepodobne spolo\u010dnos\u0165 Cisco. Neprofesion\u00e1lnych pou\u017e\u00edvate\u013eov \u010dasto odr\u00e1dza administr\u00e1cia, ktor\u00e1 pokr\u00fdva takmer v\u0161etky mo\u017enosti, a preto je ve\u013emi zlo\u017eit\u00e1. V profesion\u00e1lnom prostred\u00ed je Cisco nepostr\u00e1date\u013en\u00e9 a predstavuje kv\u00e1zi \u0161tandard.<\/p>\n\n\n\n<p>SG a CBS (<em>Prep\u00edna\u010d Cisco Business Switch<\/em>) sl\u00fa\u017eia s\u00fakromn\u00fdm pou\u017e\u00edvate\u013eom, ako s\u00fa mal\u00e9 a stredn\u00e9 podniky, Cisco Catalyst je ur\u010den\u00fd pre priemyseln\u00fdch pou\u017e\u00edvate\u013eov a Cisco Nexus pre sie\u0165ov\u00e9 \u0161trukt\u00fary, ktor\u00e9 vy\u017eaduj\u00fa vysok\u00fa \u0161k\u00e1lovate\u013enos\u0165 a zodpovedaj\u00faci v\u00fdkon.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ubiquiti\"><\/span>Ubiquiti<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Ubiquiti je v\u00fdrobca, ktor\u00fd p\u00f4vodne p\u00f4sobil v profesion\u00e1lnom sektore, a to nielen prep\u00edna\u010dov, ale aj komponentov WLAN a r\u00e1diorel\u00e9ov\u00fdch zariaden\u00ed, a ktor\u00fd pon\u00faka spotrebite\u013esk\u00fd sortiment s profesion\u00e1lnymi technol\u00f3giami z podnikov\u00e9ho sektora za dostupn\u00e9 ceny.<br>Vyzna\u010duje sa tie\u017e nepretr\u017eitou online podporou RealTime, ktor\u00fa mo\u017eno vyvola\u0165 z grafick\u00e9ho rozhrania ovl\u00e1da\u010da a pripoji\u0165 sa k nej mo\u017eno aj na dia\u013eku. Z\u00e1znamy rel\u00e1cie sa zaznamen\u00e1vaj\u00fa a na konci rel\u00e1cie sa spr\u00edstupnia e-mailom. V\u010faka tomu je mo\u017en\u00e9 n\u00e1sledne podrobne sledova\u0165 jednotliv\u00e9 kroky.<\/p>\n\n\n\n<p>UniFi a Edge s\u00fa div\u00edzie, ktor\u00e9 spolo\u010dnos\u0165 Ubiquiti pon\u00faka pre spotrebite\u013esk\u00fd a podnikov\u00fd trh. V\u00fdhodou oboch l\u00edni\u00ed je komplexn\u00e1 vizualiz\u00e1cia celej siete a centr\u00e1lna \u0161pecializovan\u00e1 spr\u00e1va prostredn\u00edctvom UniFi CloudKey Controller alebo UniFi DreamMachine (UDM), najm\u00e4 v spojen\u00ed s kamerov\u00fdm syst\u00e9mom UniFi (UniFi Protect) alebo UniFi DreamRouter (UDR).<br>V\u0161etky varianty Pro alebo Enterprise podporuj\u00fa roz\u0161\u00edren\u00e9 funkcie 3. vrstvy, napr\u00edklad VLAN.<\/p>","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u010cas \u010d\u00edtania<\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">z\u00e1pisnice<\/span><\/span>In der Netzwerktechnik nehmen Switches und die Verkabelung zentrale Funktionen ein. Was zu beachtende Unterschiede und Auswahlkriterien betrifft, soll nachfolgend er\u00f6rtert werden. Netzwerk-Kabel Abschirmung Netzwerkkabel sind als 4-paarig verdrillte Einzelkabel mit gemeinsamem Kupfer-Geflecht zur Abschirmung externer St\u00f6rfelder ausgef\u00fchrt (S\/FTP &#8211; Screened Foiled Twisted Pair). Die Verdrillung eliminiert intern auftretende St\u00f6rfelder.Kabel mit einzeln zus\u00e4tzlich mit Geflecht&hellip;&nbsp;<a href=\"https:\/\/csiag.eu\/sk\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/\" rel=\"bookmark\">\u010c\u00edta\u0165 viac \"<span class=\"screen-reader-text\">Sie\u0165ov\u00e9 technol\u00f3gie - prep\u00edna\u010de a kabel\u00e1\u017e<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[2553],"tags":[],"class_list":["post-11143","post","type-post","status-publish","format-standard","hentry","category-netzwerk-technik"],"modified_by":"Achim Goerner","_links":{"self":[{"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/posts\/11143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/comments?post=11143"}],"version-history":[{"count":0,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/posts\/11143\/revisions"}],"wp:attachment":[{"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/media?parent=11143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/categories?post=11143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/tags?post=11143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}