{"id":78009,"date":"2020-04-15T13:42:28","date_gmt":"2020-04-15T11:42:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/prosto-ah-nyj-wi-fi-ili-kak-my-stroili-set-wi-fi-6-ah-v-obrazovatelnom-uchrezhdenii"},"modified":"2020-04-15T13:42:28","modified_gmt":"2020-04-15T11:42:28","slug":"prosto-ah-nyj-wi-fi-ili-kak-my-stroili-set-wi-fi-6-ah-v-obrazovatelnom-uchrezhdenii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/prosto-ah-nyj-wi-fi-ili-kak-my-stroili-set-wi-fi-6-ah-v-obrazovatelnom-uchrezhdenii","title":{"rendered":"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>V roku 2004 bol ved\u00faci n\u00e1\u0161ho technick\u00e9ho oddelenia pozvan\u00fd na spustenie prvej Wi-Fi siete v Rusku. Toto podujatie sa konalo na Ni\u017enougorskej univerzite a zorganizovali ho spolo\u010dnosti Cisco a Intel, ktor\u00e9 u\u017e v roku 2000 otvorili centrum v\u00fdskumu a v\u00fdvoja s viac ako tis\u00edc zamestnancami a (\u010do nie je obvykl\u00e9) zak\u00fapili na to slu\u0161n\u00fa budovu. V tom \u010dase tieto dve \"prelomiace\" spolo\u010dnosti tvrdili, \u017ee to bola takmer jedin\u00e1 skuto\u010dne funguj\u00faca firemn\u00e1 bezdr\u00f4tov\u00e1 sie\u0165. Dnes by podobn\u00e9 vyhl\u00e1senia o \"jedine\u010dnosti\" pravdepodobne vyvolali iba spory, ale vtedy to bol skuto\u010dne prielom. <\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/89bb01974e924cb6199d9629ffceee41.jpg\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Toto bola Wi-Fi \u0161tandardu IEEE 802.11g. Samozrejme, na prezent\u00e1cii sa kl\u00e1dol d\u00f4raz na samotn\u00fa mo\u017enos\u0165 pripojenia k sieti bez k\u00e1blov, a v tom sa tvorcovia technol\u00f3gie nem\u00fdlili, ale \u010do sa t\u00fdka r\u00fdchlosti a dosahu, tam bolo ve\u013emi ve\u013ea nedostatkov a medzier. No skuto\u010dn\u00fd Wi-Fi G, je to proste \"G\", ako ho nazvali, tak\u00fd ho aj dostali. Poveda\u0165, \u017ee ho naozaj vyu\u017e\u00edvali na zodpovedn\u00fdch \u00fasekoch v organiz\u00e1ci\u00e1ch, by bolo nepravdiv\u00e9.<br \/>\nSkuto\u010dn\u00fdm krokom vpred bolo zavedenie \u0161tandardu 802.11n, ktor\u00fd sa stal z\u00e1kladn\u00fdm bodom pre v\u00e4\u010d\u0161inu dnes prev\u00e1dzkovan\u00fdch siet\u00ed. Hist\u00f3ria uk\u00e1zala, \u017ee zariadenia typu N300 existuj\u00fa u mnoh\u00fdch dodnes a mnoh\u00fdm to sta\u010d\u00ed. Aspo\u0148 sta\u010dilo, k\u00fdm sa p\u00e1smo 2.4GHz nepremenilo na bratsk\u00fd r\u00e1diov\u00fd cintor\u00edn sign\u00e1lov. S pr\u00edchodom 5 GHz a \u0161tandardu 11AC sa v\u0161etko o nie\u010do zlep\u0161ilo, ale zd\u00e1 sa, \u017ee iba na kr\u00e1tku dobu. <u>Jedn\u00fdm z k\u013e\u00fa\u010dov\u00fdch probl\u00e9mov je stabilita a r\u00fdchlos\u0165<\/u> linky nikam nezmizla. <\/p>\n<p><\/p>\n<p>Na z\u00e1klade probl\u00e9mov a v\u00fdhod, sme a\u017e doned\u00e1vna odpor\u00fa\u010dali v\u0161etk\u00fdm na\u0161im klientom pripoji\u0165 sa k\u00e1blom v\u0161ade tam, kde je to mo\u017en\u00e9. A bolo to od\u00f4vodnen\u00e9, preto\u017ee 802.11n (relat\u00edvne ned\u00e1vno nazvan\u00fd \"Wi-Fi 4\") ani z\u010faleka nedosahoval r\u00fdchlos\u0165 a stabilitu, ak\u00fa pon\u00faka gigabitov\u00fd Ethernet. Samozrejme, pri spr\u00e1vnej in\u0161tal\u00e1cii a vo\u013ebe k\u00e1bla, na ktorom sa nem\u00f4\u017ee \u0161etri\u0165: iba kvalitn\u00e1 me\u010f a len kateg\u00f3ria 5e alebo 6. Teraz sa sna\u017e\u00edme pou\u017e\u00edva\u0165 iba kateg\u00f3riu 6 a viac, a \u010doskoro bude jasn\u00e9 pre\u010do.<\/p>\n<p><\/p>\n<p>Dohodneme sa e\u0161te na jednom. V\u010dera sme mohli trva\u0165 na tom, aby klient obmedzil svoje pripojenie na k\u00e1blov\u00e9, ale dnes u\u017e nie. Paradigma okolo n\u00e1s sa zmenila. \u0160tvrtina, ak nie polovica zariaden\u00ed, s\u00fa gadgety, \u010fal\u0161ia \u0161tvrtina s\u00fa ultrabooky bez Ethernetu (a to s\u00fa spravidla r\u00f4zne TOP modely a stredn\u00e1 trieda, ktor\u00e1 migruje po kancel\u00e1rii a medzi kancel\u00e1riami) a iba 30-40 % sa t\u00fdka stacion\u00e1rnych pracovn\u00fdch miest. Preto ot\u00e1zka \u201epre\u010do m\u00e1me v kancel\u00e1rii tak\u00fd pomal\u00fd Wi-Fi\u201c znie \u010doraz \u010dastej\u0161ie. A h\u013ead\u00e1me rie\u0161enia. Sk\u00fa\u0161ame r\u00f4zne mo\u017enosti.<\/p>\n<p><\/p>\n<p>To bola preds\u00fa\u0165a\u017en\u00e1 \u010das\u0165, a pr\u00edbeh spo\u010d\u00edva v tom, \u017ee jeden z mojich klientov po v\u00fdmene sie\u0165ov\u00e9ho jadra a pripojen\u00ed k \u201espr\u00e1vnemu\u201c poskytovate\u013eovi prostredn\u00edctvom kvalitnej optiky <u>mal chu\u0165<\/u> vylep\u0161i\u0165 aj svoju bezdr\u00f4tov\u00fa sie\u0165, postaven\u00fa na vybaven\u00ed \u0161tandardu Wi-Fi 4 (nazveme to nov\u00fdm sp\u00f4sobom). Po mnoh\u00fdch rokoch ich pr\u00edstupov\u00e9 body \u010diasto\u010dne prestali fungova\u0165, a tak vzniklo mno\u017estvo m\u0155tvych z\u00f3n, zatia\u013e \u010do tie, ktor\u00e9 zostali, sa dostali do stavu \u00faplnej nekompatibility s v\u00e4\u010d\u0161inou prev\u00e1dzkovan\u00fdch klientsk\u00fdch zariaden\u00ed. Pod pojmom \u201emal chu\u0165\u201c v tak\u00fdchto pr\u00edpadoch treba ch\u00e1pa\u0165 pr\u00edtomnos\u0165 finan\u010dn\u00fdch mo\u017enost\u00ed a administrat\u00edvnej v\u00f4le \u2013 bez nich je to len z\u00e1mienka k rozhovoru pri \u0161\u00e1lke \u010daju. Z pochopite\u013en\u00fdch d\u00f4vodov nebudem prezr\u00e1dza\u0165 \u201emeno\u201c klienta, poviem len to\u013eko, \u017ee ide o s\u00fakromn\u00fa gymn\u00e1ziu, ktor\u00e1 zaber\u00e1 \u0161tvorr\u00e1\u017ene budovu. <\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/5f59060b1bbd8824563d7736090a7ca7.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Vzdel\u00e1vacia in\u0161tit\u00facia je pomerne komplexn\u00e1 \u0161trukt\u00fara, kde je jedno naviazan\u00e9 na druh\u00e9, a ot\u00e1zka pr\u00edstupu do lok\u00e1lnej siete a na internet hr\u00e1 dnes takmer prvorad\u00fa \u00falohu. Preto ich IT potreby neust\u00e1le r\u00e1stli a pokra\u010duj\u00fa v raste. Napr\u00edklad, vedenie chce organizova\u0165 online prenosy v\u0161etk\u00fdch osl\u00e1v, ktor\u00e9 sa konaj\u00fa na gymn\u00e1ziu, streamova\u0165 vyu\u010dovacie hodiny pre \u017eiakov s chorobami a t\u00fdch, ktor\u00ed sa do\u010dasne vzdel\u00e1vaj\u00fa na dia\u013eku, vies\u0165 skupinov\u00e9 online semin\u00e1re a pedagogick\u00e9 rady so zapojen\u00edm vzdialen\u00fdch u\u010dite\u013eov z in\u00fdch pobo\u010diek gymn\u00e1zia. Okrem toho, na serveroch gymn\u00e1zia sa uchov\u00e1va centralizovan\u00fd arch\u00edv metodick\u00fdch materi\u00e1lov pre vyu\u010dovanie, ku ktor\u00fdm je potrebn\u00fd maxim\u00e1lne r\u00fdchly pr\u00edstup prostredn\u00edctvom webov\u00e9ho prostredia intranetu a jednoducho cez sie\u0165ov\u00e9 disky. Ako \u010dere\u0161ni\u010dku na torte treba poskytn\u00fa\u0165 verejn\u00fd pr\u00edstup pre n\u00e1v\u0161tevn\u00edkov, preto\u017ee rodi\u010dia chc\u00fa zdie\u013ea\u0165 fotografie a vide\u00e1 svojich det\u00ed na soci\u00e1lnych sie\u0165ach priamo z ve\u013ekej s\u00e1ly po\u010das vyst\u00fapenia svojich mil\u00e1\u010dikov. <\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/a991e8682fda1a57ae379b5d13402733.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><b>\u010co sme mali na vstupe: <\/b><br \/>\n~ 15-20% zaniknut\u00fdch bodov H~E na \u0161tandarde N300 a priepustn\u00e9 pokrytie ako n\u00e1sledok.<\/p>\n<p><\/p>\n<p>~ 10% bodov s \u201eg\u00fdtom\u201c \u2014 s\u00fa akoby \u017eiv\u00e9, ale je ich potrebn\u00e9 pravidelne re\u0161tartova\u0165.<\/p>\n<p><\/p>\n<p>~ ve\u013emi relat\u00edvne \u201ecentr\u00e1lne riadenie\u201c; posledn\u00e9 2-3 roky body \u017eili a spravovali sa u\u017e samostatne. Nejak\u00e1 licencia nebola pred\u013a\u017een\u00e1 pri zmene IT administr\u00e1cie a v\u00fdsledok je tak\u00fd, ak\u00fd je.<\/p>\n<p><\/p>\n<p>Teda pred 7 rokmi, ke\u010f bola budova uveden\u00e1 do prev\u00e1dzky, to bola skvel\u00e1 sie\u0165 pod\u013ea posledn\u00e9ho slova techniky, ale stalo sa presne to, \u010do sa muselo sta\u0165: starnutie komponentov, prehrievanie z d\u00f4vodu prachu, v\u00fdkyvy elektriny, \u00fader \u201eloptou do bodu\u201c na zasiahnutie a podobne. <\/p>\n<p><\/p>\n<p>Po\u010det klientov a po\u010d\u00edta\u010diz\u00e1cia \u0161koly ka\u017ed\u00fdm rokom r\u00e1stla. Do tried umiestnili skrinky na notebooky a \u017eiaci za\u010dali pou\u017e\u00edva\u0165 telef\u00f3ny aj na u\u010denie.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/8bde87e7bca0b2b08d82bc8c1b3a16db.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><b>\u010co je pote\u0161ite\u013en\u00e9: <\/b><br \/>\nPred 7 rokmi mont\u00e1\u017e k\u00e1blovej \u010dasti siete robili tie\u017e my s kolegami, a ke\u010f\u017ee klient n\u00e1m dal vo\u013en\u00fa ruku, k\u00e1bel a konektory boli tie najlep\u0161ie Cat6 a dobrej zna\u010dky, s norm\u00e1lnou hr\u00fabkou vodi\u010dov \u2013 \u017eiadny \u0161al\u00e1t. V\u00fdsledkom je, \u017ee za 7 rokov v\u00e4\u010d\u0161ina k\u00e1blovej infra\u0161trukt\u00fary zostala v priemernom a\u017e dobrom stave.<\/p>\n<p><\/p>\n<p>A v\u0161etko, \u010do sa zd\u00e1 by\u0165 potrebn\u00e9, je vybra\u0165 si t\u00fato bezdr\u00f4tov\u00fa \u010das\u0165 siete. Tu sa toti\u017e objavuje mno\u017estvo sporn\u00fdch momentov: od pr\u00edstupu k v\u00fdberu \u0161tandardu, a\u017e po zna\u010dku a rozpo\u010det. <\/p>\n<p><\/p>\n<p>V z\u00e1vislosti od aktu\u00e1lnej situ\u00e1cie je rozhodovanie o v\u00fdbere \u0161tandardu niekedy zjavn\u00e9 a niekedy nezjavn\u00e9. Zjavn\u00e9 \u2013 ke\u010f sa star\u00fd \u0161tandard stal be\u017en\u00fdm a nov\u00fd sa len objavuje na obzore. Nezjavn\u00e9 \u2013 ke\u010f sa nov\u00fd u\u017e zav\u00e1dza, ale zatia\u013e m\u00e1 nie pr\u00edli\u0161 ve\u013ek\u00fd podiel.<\/p>\n<p><\/p>\n<p>V tomto pr\u00edpade je tak\u00fdm nov\u00fdm \u0161tandardom<b> IEEE 802.11ax<\/b>, a star\u00fdm \u2014 IEEE 802.11ac, premenovan\u00e9, samozrejme, na Wi-Fi 6 a Wi-Fi 5. Samozrejme, sie\u0165ov\u00e9 zariadenia posledn\u00e9ho \u0161tandardu s\u00fa v\u017edy drah\u0161ie, ale poku\u0161enie u\u0161etri\u0165 bolo prekonan\u00e9 jedn\u00fdm argumentom: ke\u010f sme zav\u00e1dzali Wi-Fi 4, tie\u017e nebolo lacn\u00e9, ale ak\u00e9 roky sme pracovali takmer bez n\u00e1kladov na moderniz\u00e1ciu a s maxim\u00e1lnymi r\u00fdchlos\u0165ami v \u010dase zavedenia.<\/p>\n<p><\/p>\n<p>Nechcem tu vysvet\u013eova\u0165, \u010d\u00edm je 6. \u0161tandard bezdr\u00f4tovej komunik\u00e1cie lep\u0161\u00ed ako 5., o tomto bolo nap\u00edsan\u00fdch mno\u017estvo \u0161peci\u00e1lnych \u010dl\u00e1nkov. Sn\u00e1\u010f jedin\u00e9, \u010do treba pochopi\u0165 \u2013 je, \u017ee vzduch m\u00e1me jeden pre v\u0161etk\u00fdch odberate\u013eov, \u017ee \u010fal\u0161\u00ed vzduch nevytvor\u00edte a ka\u017ed\u00e9 nov\u00e9 \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u0435 \u0161tandardu bezdr\u00f4tovej komunik\u00e1cie umo\u017e\u0148uje efekt\u00edvnej\u0161ie vyu\u017e\u00edvanie vzduchu, to znamen\u00e1 zabezpe\u010duje pr\u00e1cu pre v\u00e4\u010d\u0161\u00ed po\u010det odberate\u013eov s vy\u0161\u0161\u00edmi r\u00fdchlos\u0165ami.<\/p>\n<p><\/p>\n<p>Nasleduj\u00faci d\u00f4le\u017eit\u00fd bod \u2013 v\u00fdber dod\u00e1vate\u013ea. Prv\u00e9, \u010do ma napadne, bola H~E \u2013 fungovalo a slu\u0161ne fungovalo, preto vyber\u00e1me nie\u010do z H~E\/A~a. <\/p>\n<p><\/p>\n<p>Rob\u00edme dopyt na A~a c AC a s AX. Na to bude A~a N~s AP-5~5 <\/p>\n<p><\/p>\n<p>Dost\u00e1vame: Ar~ AP-5~5 \u2014 s AX \u2013 63 tis. r (november 2019) a A~a N~s AP-3~~ na AC \u2013 52 tis. r. (november 2019). Tak\u00fdch bodov potrebujeme na objekt (4 poschodia po 10 x 15 ks = minim\u00e1lne 40-50). <b>Celkovo: 2,6 mil. rub<\/b> ak berieme 11AC v cen\u00e1ch RRC. O 11ax zost\u00e1va len poveda\u0165, \u017ee AX je nedrah\u00e9 a odlo\u017ei\u0165 to na nesk\u00f4r. A to sme sa e\u0161te nedostali ku n\u00e1kladom na kontrol\u00e9r a licencie!<br \/>\nA \u010do sa stalo za 7 rokov? A kurz vzr\u00e1stol! Vtedy, v roku 13, zna\u010dkov\u00e9 body st\u00e1li tie\u017e pod 600-800 dol\u00e1rov, ale kurz bol in\u00fd. Gymn\u00e1zium, aj ke\u010f s\u00fakromn\u00e9, pr\u00edjmy m\u00e1 v rub\u013eoch. A tu sa udial kognit\u00edvny disonans a prehodnotenie na etape diskusie so z\u00e1kazn\u00edkom.<\/p>\n<p><\/p>\n<p>V\u0161etci poznaj\u00fa pojem, ako <u>preplatok za zna\u010dku<\/u>. A v tomto pr\u00edpade je to jasn\u00e1 vo\u013eba. Pre klienta v\u00fdber zna\u010dky znamen\u00e1 jedno: ak sa v tom nevyzn\u00e1\u0161 \u2014 k\u00fap najzn\u00e1mej\u0161ie, potom sa ur\u010dite nepom\u00fdli\u0161, ak si to m\u00f4\u017ee\u0161 dovoli\u0165. Pre n\u00e1s je predaj drah\u00e9ho produktu tie\u017e skvel\u00fd \u2014 zarob\u00edme viac. Zost\u00e1va v\u0161ak riziko, \u017ee klient prejde k niekomu, kto sa neboj\u00ed pon\u00faknu\u0165 nie\u010do lacnej\u0161ie, lebo sme my aj klient v roku 2020, nie v 2013: za nami je kr\u00edza, na prahu nov\u00e1 a treba myslie\u0165 rozumne. <\/p>\n<p><\/p>\n<p><b>\u010co budeme robi\u0165? Presvied\u010dame klienta, aby zabudol na AX? A \u010do ak u\u017e chce AX?<br \/>\nTak h\u013ead\u00e1me mo\u017enosti!<\/b><\/p>\n<p><\/p>\n<p>Na\u0161\u0165astie, IT trh je dynamick\u00fd: neust\u00e1le nie\u010do umiera a nie\u010do nov\u00e9 sa objavuje. Niekedy, nov\u00e1\u010dikovia, v snahe o\u010dari\u0165 verejnos\u0165, pon\u00fakaj\u00fa tie ist\u00e9 alebo podobn\u00e9 vlastnosti ako zna\u010dky typu A, ale za ni\u017e\u0161ie ceny. Bezpochyby, existuje riziko lot\u00e9rie, ruletky a dokonca aj \u201eruskej rulety\u201c s prestrelom do str\u00e1t. Ale to sa d\u00e1 relat\u00edvne minimalizova\u0165, ak sa k filtrovaniu pr\u00edstupu pred n\u00e1kupom pristupuje d\u00f4kladne.<\/p>\n<p><\/p>\n<p><b>Ak\u00e1 je pravdepodobnos\u0165 n\u00e1js\u0165 zlat\u00fd prste\u0148 v k\u00f4pke minuloro\u010dn\u00e9ho l\u00edstia? <\/b>Odpove\u010f 50\/50% \u2014 bu\u010f n\u00e1jde\u0161, alebo nie, \u2014 sk\u00f4r nie. Ale st\u00e1va sa, \u017ee n\u00e1jde\u0161.<br \/>\nAko integr\u00e1tori n\u00e1s volaj\u00fa na v\u0161etky konferencie. Pod\u013ea m\u0148a na v\u0161etky: od telef\u00f3nie a domof\u00f3nie po SKUD a Wi-Fi. Niekedy chod\u00edme. Okrem marketingu, v 1 z 100 pr\u00edpadov sa tam objav\u00ed aj rozumn\u00e9 zrno. <\/p>\n<p><\/p>\n<p>Minul\u00e9 leto na podobnej zoskupenej konferencii typu \u201esal\u00e1t z r\u00f4znych dod\u00e1vate\u013eov\u201c sa z\u00fa\u010dastnila ak\u00e1si taiwansk\u00e1 EnGenius. Kto to je, nie je jasn\u00e9. V\u0161etko, \u010do mi zostalo v pam\u00e4ti po roku, je, \u017ee zna\u010dka sa podob\u00e1 n\u00e1zvu v\u00fdrobcu my\u0161\u00ed a tvrdili, \u017ee pon\u00fakaj\u00fa Wi-Fi 6, teda AX. Z\u00e1zrakom som si spomenul, pr\u00e1ve ke\u010f som sa pozrel na my\u0161 Genius. <\/p>\n<p><\/p>\n<p>Pozeral som ich webov\u00fa str\u00e1nku. Na\u0161iel som prezent\u00e1ciu z rozosielky tej konferencie v maili. Pri presk\u00faman\u00ed sn\u00edmok ma zaujalo, \u017ee EnGenius je \u00fadajne zmluvn\u00fd v\u00fdrobca sie\u0165ov\u00fdch zariaden\u00ed (konkr\u00e9tne pr\u00edstupov\u00fdch bodov a kontrol\u00e9rov) pre zna\u010dky ako Cisco, Dell, Extreme, Fortinet, Zyxel a \u010fal\u0161\u00edch. Ak ver\u00edme taiwansk\u00e9mu, tak na t\u00fdch ist\u00fdch fabrik\u00e1ch s t\u00fdmi ist\u00fdmi technol\u00f3giami vyr\u00e1baj\u00fa aj bezdr\u00f4tov\u00e9 zariadenia pod vlastnou zna\u010dkou. <\/p>\n<p><\/p>\n<p>V skuto\u010dnosti sa uk\u00e1zalo, \u017ee Wi-Fi6, ke\u010f\u017ee ich zariadenia vyr\u00e1ba pre \u201estar\u0161\u00edch\u201c, m\u00e1 EnGenius u\u017e d\u00e1vno. A s\u00fa vraj jedni z prv\u00fdch na svete, ktor\u00ed za\u010dali vyr\u00e1ba\u0165 sie\u0165ov\u00e9 zariadenia \u0161tandardu Wi-Fi 6 (IEEE 802.11ax). <\/p>\n<p><\/p>\n<p>Pred rokom to bola len zauj\u00edmav\u00e1 inform\u00e1cia, na ktor\u00fa sa r\u00fdchlo zabudlo, ale teraz, ke\u010f je ot\u00e1zka moderniz\u00e1cie Wi-Fi na gymn\u00e1ziu aktu\u00e1lna \u2013 \u201evystrelila\u201c.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/0f823861734d48181b907eab5c6b4467.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><b>Ot\u00e1zka \u010d. 2. Kde a za ak\u00fa cenu z\u00edska\u0165 vzorky. <\/b><br \/>\nPrv\u00e9, \u010do treba porovna\u0165, je ekonomick\u00e1 efekt\u00edvnos\u0165. R\u00fdchly odhad z maloobchodu uk\u00e1zal ohromuj\u00faci efekt. Bod s AX od EnGenius stoj\u00ed v priemere ako polovica od zna\u010dkovej triedy \u201eA\u201c. Znamen\u00e1 to, \u017ee probl\u00e9m je vo vn\u00fatri! Alebo je tu op\u00e4\u0165 faktor preplatenia za zna\u010dku?<\/p>\n<p><\/p>\n<p>Potrebujeme vzorky. Bez hlbok\u00e9ho testovania tovar s tak\u00fdmi vlastnos\u0165ami a takouto cenou nie je mo\u017en\u00e9 pova\u017eova\u0165 \u2013 \u201eza bezpe\u010dn\u00e9\u201c. Vol\u00e1me do r\u00f4znych spolo\u010dnost\u00ed v Moskve a Petrohrade \u2013 tovar nie je k dispoz\u00edcii, a ak niekto <em>n\u00e1hodou<\/em> m\u00e1, tak na testy ho ned\u00e1va. O AX bodoch nehovoriac.<br \/>\nAle my sme vytrval\u00ed! P\u00ed\u0161eme na Taiwan. Odpovedaj\u00fa nejako z Holandska. Ukazuje sa, \u017ee maj\u00fa zamestnancov EnGenius priamo v RF. Po kore\u0161pondencii v \u0161kolskom angli\u010dtine o pr\u00e1zdnych upres\u0148uj\u00facich podmienkach dost\u00e1vame kontakt na \u013eud\u00ed v Rusku. Zd\u00e1 sa, \u017ee testovac\u00ed fond existuje. Tovar existuje a d\u00e1 sa s n\u00edm manipulova\u0165. <\/p>\n<p><\/p>\n<p>Po popise \u00falohy so zameran\u00edm na v\u00fdber iba bodov s AX a podp\u00edsan\u00ed garan\u010dn\u00e9ho listu, po jednej a pol t\u00fd\u017edni (zo Samary!) sme dostali s\u00fapravu zo 4 r\u00f4znych bodov, vr\u00e1tane AX bodu a PoE prep\u00edna\u010da, ktor\u00fd sa uk\u00e1zal by\u0165 aj sie\u0165ov\u00fdm kontrol\u00e9rom. <\/p>\n<p><\/p>\n<p>So zoh\u013eadnen\u00edm v\u0161etk\u00fdch faktorov (maxim\u00e1lna cena, po\u017eadovan\u00e1 hustota a po\u017eiadavky gymn\u00e1zia) boli na testy a potenci\u00e1lnu bud\u00facu in\u0161tal\u00e1ciu vybran\u00e9 pr\u00edstupov\u00e9 body EnGenius EWS377AP. <\/p>\n<p><\/p>\n<p>\u010c\u00edm s\u00fa zauj\u00edmav\u00e9: r\u00fdchlos\u0165 je deklarovan\u00e1 a\u017e do 2400 Mbit\/s na frekvencii 5 GHz + 1148 Mbit\/s na 2,4 GHz. To je prakticky ako lietadlo, ak ver\u00edme \u010d\u00edslam. <\/p>\n<p><\/p>\n<p>V balen\u00ed sa nach\u00e1dzal 8-portov\u00fd gigabitov\u00fd prep\u00edna\u010d-kontrol\u00e9r s PoE+. <\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/8d65a1a45146ccc9903ff25522375f72.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Na testy sa samozrejme hodil, ale je jasn\u00e9, \u017ee cez gigabitov\u00fd port Ethernet nie je mo\u017en\u00e9 prenies\u0165 potenci\u00e1lne generovan\u00fd traffic AX bodom. Samotn\u00fd bod je toti\u017e vybaven\u00fd multigigabitov\u00fdm rozhran\u00edm 2,5 Gbit\/s. Ak si niekto pam\u00e4t\u00e1, tak\u00e9 bolo prijat\u00e9 u\u017e v roku 2016 <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/IEEE_802.3bz\">rozhran\u00edm IEEE 802.3bz<\/a><\/noindex> a teraz za\u010d\u00edna skuto\u010dne nabera\u0165 na sile. <\/p>\n<p><\/p>\n<p>V podstate t\u00e1to vlastnos\u0165 bodov presne zapadla do t\u00e9mu klienta, ke\u010f\u017ee po upgrade jadra siete mala gymn\u00e1zia v\u00e4\u010d\u0161ina portov pr\u00e1ve multigigabitov\u00e9 po medi + \u010das\u0165 10G SFP+.<br \/>\nV\u0161etko je v poriadku, ale to vyvol\u00e1va ot\u00e1zku v\u00fdberu prep\u00edna\u010dov. V pr\u00edpade EnGenius, ak sa m\u00e1 vytvori\u0165 homog\u00e9nna sie\u0165, s\u00fa zatia\u013e k dispoz\u00edcii len 8-portov\u00e9 prep\u00edna\u010de s 2.5G a PoE+. P\u00f4vodne sme pl\u00e1novali za\u010dleni\u0165 48-portov\u00fd prep\u00edna\u010d s vysokou hustotou, alebo v krajnom pr\u00edpade dva po 24 portoch s uplinkom cez SFP na n\u00e1rast po\u010dtu portov PoE+. Ale tak\u00e9 s\u00fa u EnGenius zatia\u013e v\u0161etky gigabitov\u00e9, ako prich\u00e1dzaj\u00faci osemportov\u00fd.<\/p>\n<p><\/p>\n<p>Dobrou spr\u00e1vou je, \u017ee sa m\u00f4\u017eeme pochv\u00e1li\u0165 na\u0161ou ob\u013e\u00fabenou k\u00e1blovou t\u00e9mou. Pr\u00edtomnos\u0165 p\u00f4vodne v projekte k\u00e1blov 6. kateg\u00f3rie, polo\u017een\u00fdch 'na v\u00fdvoj' a schopn\u00fdch pren\u00e1\u0161a\u0165 t\u00fdchto 2,5 Gbit\/s, zna\u010dne ur\u00fdch\u013euje, zni\u017euje n\u00e1klady a u\u013eah\u010duje \u00falohu. <\/p>\n<p><\/p>\n<p>Ako vid\u00edme, v \u010dase pokl\u00e1dky k\u00e1blov\u00e9ho syst\u00e9mu akt\u00edvneho zariadenia s tak\u00fdmito r\u00fdchlos\u0165ami e\u0161te neexistovalo, a to e\u0161te raz potvrdzuje, \u017ee na k\u00e1bloch rozhodne netreba \u0161etri\u0165.<\/p>\n<p><\/p>\n<p>Nakoniec je situ\u00e1cia tak\u00e1: testujeme syst\u00e9m na ich 8-portovom prep\u00edna\u010di-kontrol\u00e9ri, ale v bud\u00facnosti pravdepodobne budeme zh\u00e1\u0148a\u0165 <noindex><a rel=\"nofollow\" href=\"https:\/\/www.engeniusnetworks.eu\/products\/network-switches\/ecs2512\">prep\u00edna\u010de ECS2512 s portami 2,5 Gbit\/s<\/a><\/noindex> ako poschodov\u00e9. Podrobnosti potrebn\u00e9ho po\u010dtu portov n\u00e1m uk\u00e1\u017ee r\u00e1diopl\u00e1novanie.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/c35f951e88fdf4f427eb55a06b952b1b.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p><b>Krok 1.<\/b><br \/>\nZhroma\u017e\u010fujeme stojan z poslan\u00fdch bodov a prep\u00edna\u010da-kontrol\u00e9ra.<br \/>\nVstupujeme do webov\u00e9ho rozhrania.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/c3dc8ed9467909f608d12c265003bdf8.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Hlavn\u00e1 str\u00e1nka prep\u00edna\u010da, tie\u017e kontrol\u00e9r.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/3ecbf5178291d13886c8db01a42c25ce.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Rozde\u013eujeme body do skup\u00edn.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/f4ee792261624097d669cd37d9cd8e79.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>V\u00fdborne! Cel\u00e1 sie\u0165, vr\u00e1tane cudz\u00edch zariaden\u00ed, je ako na dlani! Pohodln\u00e9 a pr\u00edstupn\u00e9.<\/p>\n<p><\/p>\n<p><b>Krok 2.<\/b><br \/>\nH\u013ead\u00e1me n\u00e1stroj r\u00e1diopl\u00e1novania v kontrol\u00e9ri a nenach\u00e1dzame ho. <\/p>\n<p><\/p>\n<p>Ukazuje sa, \u017ee EnGenius m\u00e1 r\u00e1diopl\u00e1novanie, ale je presunut\u00e9 do cloudu a vol\u00e1 sa ezWiFiPlanner. Vol\u00e1me do technickej podpory kolegom z EnGenius. Registruj\u00fa n\u00e1s v ich syst\u00e9me a d\u00e1vaj\u00fa pr\u00edstup.<br \/>\nTak\u017ee \u010do tu vid\u00edme. <\/p>\n<p>\n<center><iframe loading=\"lazy\" title=\"r\u00e1diopl\u00e1novanie\" width=\"560\" height=\"315\" src=\"https:\/\/player.vimeo.com\/video\/404937920\" frameborder=\"0\" allowfullscreen><\/iframe><\/center><\/p>\n<p>Klimatiza\u010dn\u00fd syst\u00e9m pl\u00e1novania Wi-Fi pokrytia sa ukazuje ako mimoriadne mocn\u00fd. Poviem, \u017ee sa uch\u00e1dza o vzory podobn\u00fdch produktov od Ekahau, ale iba s jedn\u00fdm pr\u00edjemn\u00fdm v\u00fdnimkou \u2014 tento ezWiFiPlanner je \u00faplne zadarmo. Od slova \u00faplne. Nev\u00fdhodou samozrejme je, \u017ee okrem vlastn\u00fdch bodov EnGenius ni\u010d in\u00e9 nepozn\u00e1.<\/p>\n<p><\/p>\n<p>Jednoduch\u00fd n\u00e1\u010drt r\u00e1diov\u00e9ho pl\u00e1nu je mo\u017en\u00e9 urobi\u0165 za p\u00e1r min\u00fat, \u010do bolo aj preuk\u00e1zan\u00e9 vo videu. Potom sta\u010d\u00ed obkresli\u0165 steny a okn\u00e1, ozna\u010di\u0165, ktor\u00e9 steny s\u00fa nosn\u00e9 a kde s\u00fa prekrytia z sadrokart\u00f3nu. Ujas\u0148ujeme u z\u00e1kazn\u00edka, kde pripev\u0148ujeme body na stropoch a \u010do najbli\u017e\u0161ie k predch\u00e1dzaj\u00facim miestam, pos\u00favame sa tam a sp\u00e4\u0165 a body zaberaj\u00fa kone\u010dn\u00e9 miesta.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/038e7f8d9c8e03b9d307c37810e911bc.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Celkovo m\u00f4\u017eem potvrdi\u0165 zo svojej vlastnej sk\u00fasenosti, \u017ee pr\u00e1ca s pl\u00e1nova\u010dom EnGenius je ve\u013emi jednoduch\u00e1 a pohodln\u00e1, v kni\u017eniciach je v\u0161etko potrebn\u00e9. Parametre siete sa menia jednoducho a ihne\u010f vid\u00edme v\u00fdsledok. Upozor\u0148ujem, \u017ee v cloude m\u00f4\u017eeme uchov\u00e1va\u0165 svoje projekty a nesk\u00f4r ich exportova\u0165 a pou\u017e\u00edva\u0165 ako \u0161abl\u00f3ny pre in\u00e9 objekty. To je v\u00fdhoda, preto\u017ee som na vlastnej ko\u017ei videl, \u017ee mnoh\u00e9 vstavan\u00e9 softv\u00e9ry v kontrol\u00e9roch nedovo\u013euj\u00fa uklada\u0165 r\u00e1diopl\u00e1n a dokonca ani platen\u00e9 syst\u00e9my, ktor\u00e9 neumo\u017e\u0148uj\u00fa exportova\u0165 projekt do jednoduch\u00e9ho PDF. Za \u010do sme teda platili?<\/p>\n<p><\/p>\n<p><b>A tak dost\u00e1vame tak\u00fato sch\u00e9mu pokrytia na\u0161ich objektov.<\/b><\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/c8eae4ae48ea933e58cb06d4b1a841c4.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Toto je sch\u00e9ma prv\u00e9ho poschodia pre frekvenciu 5 GHz, ostatn\u00e9 poschodia maj\u00fa takmer identick\u00fa dispoz\u00edciu.<br \/>\nToto je vlastne cel\u00e9 rie\u0161enie. <\/p>\n<p><\/p>\n<p>Pokia\u013e ide o v\u00fdber miest in\u0161tal\u00e1cie pr\u00edstupov\u00fdch bodov, v na\u0161om pr\u00edpade by sme sa nemuseli pr\u00edli\u0161 za\u0165a\u017eova\u0165 a umiestni\u0165 nov\u00e9 pr\u00edstupov\u00e9 body na tie ist\u00e9 miesta, kde boli nain\u0161talovan\u00e9 predch\u00e1dzaj\u00face, \u0161tandardu Wi-Fi 4, no mo\u017eno hustej\u0161ie pokry\u0165 spolo\u010densk\u00fa miestnos\u0165. V podstate sme to tak urobili, sna\u017eiac sa minimalizova\u0165 pr\u00e1ce na prepojen\u00ed k\u00e1blov\u00fdch tr\u00e1s k bodom. Napriek tomu, vzh\u013eadom na kone\u010dn\u00fd obraz nov\u00e9ho r\u00e1diopl\u00e1nu a zoznam \u017eelan\u00ed\/doplnkov od z\u00e1kazn\u00edka, z\u00edskan\u00fdch z 7-ro\u010dnej prev\u00e1dzky predch\u00e1dzaj\u00facej siete, bolo predsa len potrebn\u00e9 \u010das\u0165 k\u00e1blov\u00fdch koncov prepoji\u0165 na in\u00fdch miestach a niektor\u00e9 \u00faseky prelo\u017ei\u0165 do \u017e\u013eabov. Ale celkovo to m\u00f4\u017eeme pova\u017eova\u0165 za minim\u00e1lnu moderniz\u00e1ciu. <\/p>\n<p><\/p>\n<p>Pri pl\u00e1novan\u00ed som uprednostnil, ako sa hovor\u00ed medzi pref\u00e9renstistami, prehodi\u0165 \u2013 po\u010det klientsk\u00fdch zariaden\u00ed a objem prev\u00e1dzky bude iba narasta\u0165 a chcel by som, aby aj t\u00e1to sie\u0165 vydr\u017eala dlh\u0161ie bez potreby moderniz\u00e1cie.<\/p>\n<p><\/p>\n<p><b>Krok 3. Testujeme a porovn\u00e1vame.<\/b><\/p>\n<p><\/p>\n<p>Pri\u0161iel \u010das pochopi\u0165, \u010do n\u00e1m prin\u00e1\u0161a ten ist\u00fd AX. O to viac, \u017ee okrem AX pr\u00edstupov\u00fdch bodov m\u00e1me aj pr\u00edstupov\u00e9 body Wave2 + Wave1 s r\u00f4znymi konfigur\u00e1ciami ant\u00e9nnych obvodov. Tak\u017ee si m\u00f4\u017eeme dovoli\u0165 porovna\u0165 v\u00fdsledky. Na testy berieme Samsung S10 s deklarovanou podporou AX (802.11 a\/b\/g\/n\/ac\/ax 2,4G+5 GHz, HE80, MIMO, 1024-QAM)<\/p>\n<p><\/p>\n<p>Meranie na EWS360AP a EWS377AP.<\/p>\n<p>\n<center><iframe loading=\"lazy\" title=\"360\" width=\"560\" height=\"315\" src=\"https:\/\/player.vimeo.com\/video\/404937967\" frameborder=\"0\" allowfullscreen><\/iframe><\/center><\/p>\n<p>Testy sa vykon\u00e1vali vo vzdialenosti 2-3 metre od pr\u00edstupov\u00e9ho bodu, t.j. typick\u00e1 vzdialenos\u0165 od pr\u00edstupov\u00e9ho bodu ku \u0161tudentovi v triede. Na najnov\u0161om Galaxy jedn\u00e9ho z na\u0161ich technikov sa n\u00e1m raz podarilo z\u00edska\u0165 takmer 640Mb\/s bezdr\u00f4tovo. \u010co je v podstate p\u00f4sobiv\u00e9.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/a2a96b851b37f256fcbe30034d503363.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<center><iframe loading=\"lazy\" title=\"377AX\" width=\"560\" height=\"315\" src=\"https:\/\/player.vimeo.com\/video\/404938225\" frameborder=\"0\" allowfullscreen><\/iframe><\/center><br \/>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/921f52f05ca5c6f6125e1238d67e8afa.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>V\u00fdsledky s\u00fa ve\u013emi zauj\u00edmav\u00e9 ~320Mb\/s na pr\u00edstupovom bode EWS360AP(AC) oproti ~480MB\/s na pr\u00edstupovom bode EWS377AP(AX) v r\u00e1mci lok\u00e1lnej siete. N\u00e1rast nie je mal\u00fd, takmer 50%. Samozrejme, v re\u00e1lnych podmienkach bud\u00fa r\u00fdchlosti ni\u017e\u0161ie, ale rozdiel je \u00faplne zrejm\u00fd.<\/p>\n<p><\/p>\n<p><b>Prekvapenie, kde sme to ne\u010dakali!<\/b><\/p>\n<p><\/p>\n<p>Pova\u017eujme na\u0161e testy za ve\u013emi pozit\u00edvne. Zost\u00e1va vyrie\u0161i\u0165 ot\u00e1zku spr\u00e1vy celej siete v r\u00e1mci bojov\u00e9ho projektu. Pl\u00e1novan\u00e9 pr\u00edstupov\u00e9 body EnGenius EWS377AP bezpochyby maj\u00fa vstavan\u00e9 webov\u00e9 rozhranie pre nastavenie, ale m\u00e1 zmysel ho pou\u017e\u00edva\u0165 iba pre jednotliv\u00e9 nasadenie, mimo skupiny. Na\u0161ou \u00falohou je riadenie celej matice pr\u00edstupov\u00fdch bodov.<\/p>\n<p><\/p>\n<p>V r\u00e1mci gymn\u00e1zia je potrebn\u00e9 zabezpe\u010di\u0165 bez\u0161vov\u00e9 roamingov\u00e9 pripojenie pod\u013ea \u0161tandardov IEEE 802.11k\/r\/v a oddelen\u00fa, hos\u0165ovsk\u00fa sie\u0165, pri\u010dom ich m\u00f4\u017ee by\u0165 aj viac. <noindex><a rel=\"nofollow\" href=\"https:\/\/engeniusnetworks.ru\/dlya-biznesa\/tochki-dostupa\/engenius-ews377ap\">EWS377AP<\/a><\/noindex> umo\u017e\u0148uj\u00fa vytvori\u0165 a\u017e 16 SSID s vlastn\u00fdmi skupinov\u00fdmi politikami (pre administr\u00e1ciu, \u00fa\u010dtovn\u00edctvo, u\u010dite\u013eov, \u017eiakov) \u2013 ale to v\u0161etko je mo\u017en\u00e9 len pri centralizovanom riaden\u00ed.<\/p>\n<p><\/p>\n<p>Po\u010das pr\u00e1ce s EnGenius switch-kontrol\u00e9rom som sa u\u017e akosi zmieril s my\u0161lienkou, \u017ee PoE switch a kontrol\u00e9r s\u00fa jedna a t\u00e1 ist\u00e1 entita a za ni\u010d \u010fal\u0161ie extra plati\u0165 nebude potrebn\u00e9. Av\u0161ak pri prechode na zostavenie konkr\u00e9tnej \u0161pecifik\u00e1cie sme zistili, \u017ee nov\u00e9 2.5GbE PoE+ switche od EnGenius nemaj\u00fa vstavan\u00fd kontrol\u00e9r, preto\u017ee s\u00fa hybridn\u00e9 \u2013 lok\u00e1lne a cloudov\u00e9. Predpoklad\u00e1 sa, \u017ee do bud\u00facnosti sa m\u00f4\u017eeme prepn\u00fa\u0165 z lok\u00e1lnych na cloudov\u00e9 kontrol\u00e9ry. Mo\u017eno je to aj svetov\u00fd trend, ale zatia\u013e tak\u00e1to mo\u017enos\u0165 by u klienta vyvolala iba paniku, preto v TP sa polo\u017eila ot\u00e1zka, ak\u00e9 s\u00fa \u010fal\u0161ie alternat\u00edvy.<br \/>\nV odpovedi boli navrhnut\u00e9 2 mo\u017enosti: in\u0161tal\u00e1cia bezplatn\u00e9ho produktu <noindex><a rel=\"nofollow\" href=\"https:\/\/www.engeniusnetworks.eu\/products\/software\/on-premises-management\/ezmaster\">EnGenius ezMaster<\/a><\/noindex> na po\u010d\u00edta\u010d alebo zak\u00fapenie hardv\u00e9rovej mini-kontroler <noindex><a rel=\"nofollow\" href=\"https:\/\/engeniusnetworks.ru\/dlya-biznesa\/kontrollery\/engenius-skykey-i\">EnGenius SkyKey<\/a><\/noindex> s funk\u010dnos\u0165ou a webov\u00fdm rozhran\u00edm identick\u00fdm ezMaster.<\/p>\n<p><\/p>\n<p>Zredukujeme probl\u00e9m v\u00fdberu platformy do tabu\u013eky<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><strong>SkyKey \u2013 mini-kontrol\u00e9r<\/strong><\/p>\n<p><\/p>\n<p><strong>ezMaster \u2013 softv\u00e9r na server<\/strong><\/p>\n<p><\/p>\n<p><strong>Maxim\u00e1lny po\u010det bodov v mas\u00edve<\/strong><\/p>\n<p><\/p>\n<p>100<\/p>\n<p><\/p>\n<p>1000+<\/p>\n<p><\/p>\n<p><strong>Spr\u00e1va <\/strong><\/p>\n<p><\/p>\n<p>Cez EnGenius Cloud alebo webov\u00e9 rozhranie lok\u00e1lne<\/p>\n<p><\/p>\n<p><strong>Po\u017eiadavky na hardv\u00e9r<\/strong><\/p>\n<p><\/p>\n<p>Sama krabi\u010dka-kontroler<\/p>\n<p><\/p>\n<p>Potrebujete nosi\u010d: PC alebo server a virtu\u00e1lne prostredie<\/p>\n<p><\/p>\n<p><strong>R\u00fdchlos\u0165 spustenia syst\u00e9mu do prev\u00e1dzky<\/strong><\/p>\n<p><\/p>\n<p>Takmer okam\u017eite \u2013 zapojte a prejdeme k pr\u00e1ci<\/p>\n<p><\/p>\n<p>Treba sa nau\u010di\u0165 nain\u0161talova\u0165, nastavi\u0165 a \u010falej ako v\u017edy\u2026<\/p>\n<p>Ur\u010dit\u00e9 v\u00fdkyvy sa vyskytli, ale aj tu sme sa rozhodli \u00eds\u0165 v bojovom projekte cestou jednoduchosti. Zapojil som a vzlietlo \u2013 Plug-and-play!<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/e470890eed84d41b50baab63a94666cf.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Pod\u013ea \u017eivotnej praxe \u0161pecializovan\u00e9 sie\u0165ov\u00e9 zariadenie s webov\u00fdm rozhran\u00edm, ku ktor\u00e9mu sa d\u00e1 pristupova\u0165 z ak\u00e9hoko\u013evek klienta (vr\u00e1tane smartf\u00f3nu), v\u017edy oslovuje potenci\u00e1lne v\u00e4\u010d\u0161ou stabilitou, ako nain\u0161talovan\u00fd softv\u00e9r, najm\u00e4 ve\u013emi \u0161pecifick\u00e9 nasadenie \u2013 cez VMware. Nem\u00e1m ni\u010d proti VMWare, virtu\u00e1lny stroj m\u00e1 svoje v\u00fdhody, ale mus\u00ed sa robi\u0165 alebo sa zap\u00e1ja na server gymn\u00e1zia virtualizuj\u00faci in\u00e9 \u00falohy. To je \u010das. A my v podstate \u0161etr\u00edme peniaze klientovi.<\/p>\n<p><\/p>\n<p>Obmedzenie mini-kontrolera na 100 pr\u00edstupov\u00fdch bodov pre gymn\u00e1zium nie je kritick\u00e9 \u2013 v najodv\u00e1\u017enej\u0161\u00edch fant\u00e1zi\u00e1ch sa ani z\u010faleka nedostaneme k limitu, a r\u00e1diopl\u00e1novanie n\u00e1m d\u00e1va menej ako polovicu za\u0165a\u017eenia. <\/p>\n<p><\/p>\n<p>Bod v diskusii polo\u017eilo magnetick\u00e9 uchytenie tejto veci. Hups! \u2013 pripevnen\u00e9. V\u0161etci sa smiali a vzali ho.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/c19cdeec5807f4aea9bd57744a47425d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><b>Princ\u00edp sch\u00e9my a jadro siete.<\/b><\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/026c7487a4731819501fb48a045c6e53.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Celkov\u00e1 sch\u00e9ma pripojenia vyzerala takto. Celkov\u00fd po\u010det bodov sa zn\u00ed\u017eil z 40 na 32.<br \/>\nKe\u010f\u017ee na \"hlavnom\" switche s\u00fa 4 porty a potrebujeme 5, rozhodlo sa pripoji\u0165 tretie poschodie cez druh\u00e9 (polovicu druh\u00e9ho poschodia zaberaj\u00fa auly a \u0161portov\u00e9 haly a klientov je tam omnoho menej).<br \/>\nA jadrom syst\u00e9mu bol vybran\u00fd Juniper EX2300-24T. V\u00fdber bol medzi n\u00edm, SG500X-24P a AT-GS924MPX-50. Ale pri maxim\u00e1lne bl\u00edzkych charakteristik\u00e1ch, zariadenie od Juniper v\u00fdrazne vyhr\u00e1va v cene a zapad\u00e1 do rozpo\u010dtu.<\/p>\n<p><\/p>\n<p><b>Zhrnutie z\u00edskanej sk\u00fasenosti.<\/b><br \/>\nZatia\u013e je pred\u010dasn\u00e9 hovori\u0165 o z\u00e1veroch. Z\u00e1very m\u00f4\u017eu pr\u00eds\u0165 len ke\u010f sa sie\u0165 definit\u00edvne uvedie do prev\u00e1dzky a pracuje aspo\u0148 \u0161es\u0165 mesiacov.<br \/>\nZatia\u013e s\u00fa dojmy rozdelen\u00e9 na 3 zlo\u017eky.<\/p>\n<p><\/p>\n<p><b>Pozit\u00edvne: <\/b><\/p>\n<p><\/p>\n<ul>\n<li>Cena za AX je viac ne\u017e primeran\u00e1. V podstate v\u00fdber tejto zna\u010dky umo\u017enil neodmietn\u00fa\u0165 my\u0161lienku z\u00edska\u0165 Wi-Fi6 v princ\u00edpe. Ak sa pozrieme na \u010fal\u0161\u00edch, ktor\u00ed u\u017e maj\u00fa AX \u2013 je to drah\u00e9 a ve\u013emi ve\u013ea zlo\u017eit\u00fdch licenci\u00ed. Ja osobne ve\u013emi uzn\u00e1vam spolo\u010dnos\u0165 A~d T~sis, ale plati\u0165 peniaze za bezprobl\u00e9mov\u00fd roaming \u2014 to je \u0161ialenstvo a hr\u00f4za v dne\u0161nej dobe. <\/li>\n<li>Ve\u013emi ma pote\u0161il Wi-Fi pl\u00e1nova\u010d v cloude. Je to urobene viac ne\u017e na \u00farovni a bezplatne.<\/li>\n<li>Celkom spr\u00e1vne je uroben\u00e9 rozhranie ovl\u00e1da\u010da, kde je cel\u00e1 sie\u0165 prieh\u013eadn\u00e1 a v\u0161etci m\u00f4\u017eu spravova\u0165 v\u0161etko z jedn\u00e9ho displeja. <\/li>\n<li>Vzh\u013ead bodov je neutr\u00e1lny, zmie\u0148uj\u00fa sa v interi\u00e9ri, n\u00e1zov zna\u010dky nie je skoro vidie\u0165.<\/li>\n<li>Aj ke\u010f sme riskovali s nie\u010d\u00edm nezn\u00e1mym, sie\u0165 na Engenius funguje. A funguje skvele. Sign\u00e1l je stabiln\u00fd, nesk\u00e1\u010de, body sa neodpojuj\u00fa. \u010cas uk\u00e1\u017ee, ako sa bud\u00fa spr\u00e1va\u0165 na masovej akcii v zasadacej miestnosti, ale cel\u00fd segment kancel\u00e1rie, ktor\u00fd bol spusten\u00fd ako prv\u00fd, funguje ve\u013emi stabilne.<\/li>\n<li>Roaming. Je pr\u00edtomn\u00fd. Nebudem dokazova\u0165, \u017ee naozaj funguje, ako sme to robili s in\u00fdm produktom kedysi na za\u010diatku tohto javu \u2014 len jednoducho v dne\u0161nej dobe ho m\u00e1 mnoh\u00ed a tak by to malo by\u0165 u ka\u017ed\u00e9ho norm\u00e1lneho v\u00fdrobcu.<\/li>\n<li>Nat\u00edvna podpora Mesh siet\u00ed a jej nastavenie nesp\u00f4sobilo \u017eiadne probl\u00e9my.<br \/>\n+band-stirring. \u00c1no, funguje. Norm\u00e1lne pres\u00fava medzi frekven\u010dn\u00fdmi p\u00e1smami.<\/li>\n<\/ul>\n<p><\/p>\n<p><b>Negat\u00edvne:<\/b><br \/>\nZ m\u00f4jho poh\u013eadu je to hl\u00fape a nie ve\u013emi spo\u013eahliv\u00e9 uchytenie k stropu. U mnoh\u00fdch lacnej\u0161\u00edch produktov je mont\u00e1\u017ena z\u00e1klad\u0148a z kovu a je pevne pripevnen\u00e1, pri\u010dom je to pohodlnej\u0161ie. Nehovor\u00edm, \u017ee to nedr\u017e\u00ed, ale m\u00e1me tu \"akt\u00edvny kontingent\" s hromadn\u00fdmi behmi po chodb\u00e1ch a h\u00e1dzan\u00edm predmetov do dia\u013eky, preto o\u010dak\u00e1vame potenci\u00e1lne probl\u00e9my.<\/p>\n<p>\n<img decoding=\"async\" alt=\"Jednoducho \u00fa\u017easn\u00fd Wi-Fi. Alebo ako sme budovali sie\u0165 Wi-Fi 6 (AX) v vzdel\u00e1vacej in\u0161tit\u00facii\" src=\"\/wp-content\/uploads\/2020\/04\/bc05af20a78074493b27df6c62f78d80.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Otvor na vstup k\u00e1blov na 377. bode je povedan\u00e9 jemne, nie ve\u013emi rozumne uroben\u00fd. K\u00e1bel treba zav\u00e1dza\u0165 zo stropu na lom, a ak zav\u00e1dzate nap\u00e1janie z 12V samostatn\u00fdm p\u00e1rom a svorkou, tak sa takmer nezmest\u00ed do tohto otvoru. Situ\u00e1cia sa zhor\u0161uje dostato\u010dne \u201eostr\u00fdm\u201c okrajom kovov\u00e9ho zadku, ktor\u00fd m\u00f4\u017ee stla\u010di\u0165 k\u00e1bel. <\/p>\n<p><\/p>\n<p><b>Neutr\u00e1lne-zvl\u00e1\u0161tne:<\/b><br \/>\nNejako zvl\u00e1\u0161tne vyzer\u00e1, \u017ee vo star\u0161ej verzii gigabitov\u00fdch prep\u00edna\u010dov bol zabudovan\u00fd lok\u00e1lny ovl\u00e1da\u010d, a v nov\u00fdch nie je. <\/p>\n<p><\/p>\n<p><b>Na z\u00e1ver. <\/b><br \/>\nRozhodnutie, \u010di si dnes k\u00fapi\u0165 pr\u00edstupov\u00e9 body AX, zost\u00e1va na strane z\u00e1kazn\u00edka. Je jasn\u00e9, \u017ee je to trend. Ak je trend, netreba \u00eds\u0165 proti vetru, ale nastavi\u0165, ak si to \u017eelaj\u00fa.<br \/>\nNa z\u00e1klade \u010disto technick\u00fdch v\u00fdhod m\u00f4\u017eete sami pos\u00fadi\u0165 a urobi\u0165 si z\u00e1very na z\u00e1klade testov. Obrovskou ot\u00e1zkou je, \u010do sa pripoj\u00ed k tomuto Wi-Fi6 a \u010d\u00edm sa bude mera\u0165 r\u00fdchlos\u0165. Na starom zariaden\u00ed - nulov\u00fd zmysel. Ale na novom - n\u00e1rast je o\u010dividn\u00fd, ak je sie\u0165 prich\u00e1dzaj\u00faca k bodu tie\u017e adekv\u00e1tna. <\/p>\n<p><\/p>\n<p>Zost\u00e1va odpoveda\u0165 na ot\u00e1zku, a \u010do EnGenius? Na z\u00e1klade celkov\u00e9ho dojmu sk\u00f4r \"\u00c1no\" ako \"Nie\". \u010co zaujalo, je to, \u017ee sie\u0165 sa spustila cel\u00e1 naraz a bez komplik\u00e1ci\u00ed a v\u0161etko fungovalo. Ale m\u00f4\u017eeme to pos\u00fadi\u0165 celkovo za rok. Zatia\u013e d\u00e1me ve\u013ek\u00e9 bodky, ale nem\u00f4\u017eem poveda\u0165 ni\u010d zvl\u00e1\u0161\u0165 zl\u00e9.<\/p>\n<p><\/p>\n<p><b>Situ\u00e1cia je aktu\u00e1lna.<\/b><br \/>\nV obdob\u00ed od za\u010diatku do polovice marca sme dok\u00e1zali uvies\u0165 do prev\u00e1dzky pilotn\u00fd segment. 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