![\"\"](\"https:\/\/www.soitron.com\/wp-content\/uploads\/2021\/03\/rezie-tv-markiza-1.jpg\")
\u010co v\u0161etko sa skr\u00fdva za prenosom enormn\u00e9ho mno\u017estva d\u00e1t v optick\u00fdch tras\u00e1ch po technickej str\u00e1nke, si \u010dasto ako be\u017en\u00ed div\u00e1ci ani nevieme predstavi\u0165. Pritom, keby sa nepodarilo zabezpe\u010di\u0165 hladk\u00fd transport d\u00e1t, ur\u010dite by sme si nemohli u\u017e\u00edva\u0165 \u0161portov\u00e9 podujatia vo vysokom \u010di ultravysokom rozl\u00ed\u0161en\u00ed. Samozrejme, nie s\u00fa to v\u0161ak iba \u0161portov\u00e9 prenosy, ktor\u00e9 pr\u00fadia d\u00e1tov\u00fdmi trasami telev\u00edznych stan\u00edc. T\u00fdmito pomyseln\u00fdmi dia\u013enicami do \u0161t\u00fadi\u00ed putuje obrovsk\u00e9 mno\u017estvo r\u00f4znych inform\u00e1ci\u00ed naraz, a pritom sa nezmie\u0161aj\u00fa.<\/p>\n\n\n\n
Ke\u010f existuj\u00face dia\u013enice nesta\u010dia<\/h2>\n\n\n\n
Predstavte si nieko\u013eko mal\u00fdch n\u00e1kladn\u00fdch vozidiel, pohybuj\u00facich sa po okresnej ceste v jednom i druhom smere. Prepravuj\u00fa tovar medzi tov\u00e1r\u0148ami a spotrebite\u013emi. Ako popul\u00e1cia rastie, rastie aj dopyt, a t\u00fdm samozrejme rastie po\u010det n\u00e1kladn\u00fdch vozidiel. Doch\u00e1dza postupne k zvy\u0161ovaniu r\u00f4znorodosti tovaru a prev\u00e1dzky. V ur\u010ditom okamihu preto musia spr\u00e1vcovia komunik\u00e1ci\u00ed za\u010da\u0165 “prid\u00e1va\u0165” \u010fal\u0161ie pruhy, a z malej okresnej cesty sa napokon stane ve\u013ek\u00e1 viacpr\u00fadov\u00e1 dia\u013enica. Ve\u013ek\u00e9 a dlh\u00e9 vozidl\u00e1 po nej ka\u017ed\u00fd de\u0148 prepravuj\u00fa obrovsk\u00e9 objemy r\u00f4zneho druhu tovaru.<\/p>\n\n\n\n
Podobn\u00e1 r\u00fdchla expanzia nastala v d\u00e1tov\u00fdch tras\u00e1ch. Telekomunika\u010dn\u00fd priemysel a najm\u00e4 poskytovatelia slu\u017eieb \u010delili dramatick\u00e9mu a ve\u013emi r\u00fdchlemu n\u00e1rastu objemu a typu d\u00e1t, ktor\u00e9 musia ich syst\u00e9my spracov\u00e1va\u0165. Siete, ktor\u00e9 boli p\u00f4vodne vytvoren\u00e9 pre prenos zvuku z jedn\u00e9ho telef\u00f3nu do druh\u00e9ho, teraz absorbuj\u00fa pr\u00edlev ve\u013ek\u00e9ho objemu d\u00e1t. To v\u0161etko v re\u00e1lnom \u010dase a z mnoh\u00fdch miest, respekt\u00edve zariaden\u00ed v jeden okamih. Optick\u00e9 vl\u00e1kna mali v\u00fdznamn\u00fd vplyv na telekomunika\u010dn\u00fd priemysel a bud\u00fa v tom pokra\u010dova\u0165. Svetlo ako nosi\u010d umo\u017e\u0148uje ove\u013ea vy\u0161\u0161ie r\u00fdchlosti prenosu d\u00e1t na v\u00e4\u010d\u0161ie vzdialenosti a s men\u0161\u00edmi stratami v porovnan\u00ed s bezdr\u00f4tov\u00fdmi sp\u00f4sobmi. Aby bolo mo\u017en\u00e9 d\u00e1ta zak\u00f3dova\u0165, pren\u00e1\u0161a\u0165 a po ich prijat\u00ed dek\u00f3dova\u0165 sp\u00e4\u0165 do p\u00f4vodn\u00e9ho stavu, s\u00fa v optick\u00fdch tras\u00e1ch vyu\u017eit\u00e9 vysiela\u010de a prij\u00edma\u010de.<\/p>\n\n\n\n
Rovnak\u00e1 kabel\u00e1\u017e a\u00a0pritom vy\u0161\u0161ia kapacita<\/h2>\n\n\n\n
Dense Wavelength Division Multiplexing je technol\u00f3gia vysiela\u010dov a prij\u00edma\u010dov vyvinut\u00e1 u\u017e pred 20 rokmi, v\u010faka nej s\u00fa prenosy prostredn\u00edctvom optiky ove\u013ea lep\u0161ie. Dramaticky toti\u017e dok\u00e1\u017eu zv\u00fd\u0161i\u0165 kapacitu p\u00e1sma (v podstate mno\u017estvo d\u00e1t, ktor\u00e9 mo\u017eno pren\u00e1\u0161a\u0165) v existuj\u00facich optick\u00fdch rozvodoch. Jednoducho povedan\u00e9, d\u00e1ta z r\u00f4znych sign\u00e1lov s\u00fa oddelen\u00e9 a k\u00f3dovan\u00e9 na r\u00f4znych vlnov\u00fdch d\u013a\u017ekach a spojen\u00e9 (multiplexovan\u00e9) do jedn\u00e9ho optick\u00e9ho vl\u00e1kna. Na prij\u00edmacom konci s\u00fa vlnov\u00e9 d\u013a\u017eky znova oddelen\u00e9 a preveden\u00e9 na p\u00f4vodn\u00e9 digit\u00e1lne sign\u00e1ly. In\u00fdmi slovami, DWDM umo\u017e\u0148uje posiela\u0165 r\u00f4zne d\u00e1tov\u00e9 toky s\u00fa\u010dasne cez jedin\u00e9 optick\u00e9 vl\u00e1kno, bez toho aby bolo nutn\u00e9 kl\u00e1s\u0165 nov\u00e9 a nov\u00e9 k\u00e1ble. Tak pon\u00faka obrovsk\u00fa kapacitu pre naozaj ve\u013ek\u00e9 mno\u017estvo sign\u00e1lov, ktor\u00e9 s\u00fa optikou posielan\u00e9.<\/p>\n\n\n\n
So vzrastaj\u00facimi n\u00e1rokmi si TV Mark\u00edza chcela aj na\u010falej zabezpe\u010di\u0165 dostatok d\u00e1tov\u00e9ho p\u00e1sma a zabezpe\u010di\u0165 prenos produk\u010dn\u00fdch d\u00e1t potrebn\u00fdch pre vysielanie medzi \u0161tyrmi svojimi lokalitami v Bratislave. Konkr\u00e9tne i\u0161lo o s\u00eddlo telev\u00edzie, ateli\u00e9ry NAD a peeringov\u00e9 centr\u00e1 Sitel a Six. Toto umo\u017enilo pr\u00e1ve nasadenie DWDM siete s technol\u00f3giami od spolo\u010dnosti Nokia. Pritom nebolo nutn\u00e9 rie\u0161i\u0165 stavebn\u00e9 pr\u00e1ce a pou\u017eila sa existuj\u00faca kabel\u00e1\u017e. “K\u00e1ble museli kapacitne zvl\u00e1dnu\u0165 prenos ve\u013ek\u00e9ho mno\u017estva produk\u010dn\u00fdch d\u00e1t, ako s\u00fa streamy, vide\u00e1 a in\u00e9 nahr\u00e1vky ur\u010den\u00e9 pre produkciu a zostrihanie \u010di pou\u017eitie pri \u017eivom vysielan\u00ed. Taktie\u017e sa rie\u0161ila po\u017eiadavka na priame prepojenie s telev\u00edziou Nova. Cel\u00e1 DWDM sie\u0165 be\u017e\u00ed na optick\u00fdch vl\u00e1knach, ktor\u00e9 si Mark\u00edza dlhodobo prenaj\u00edma od spolo\u010dnosti ACS, “uv\u00e1dza Martin \u010caprnka, Network Presales Manager spolo\u010dnosti Soitron, ktor\u00e1 zais\u0165ovala implement\u00e1ciu technologick\u00e9ho rie\u0161enia.<\/p>\n\n\n\n Multiplexovacie zariadenie DWDM a pou\u017eit\u00e1 technol\u00f3gia Nokia PSS (Photonic Service Switch) prev\u00e1dza d\u00e1ta z desiatok zdrojov na jedin\u00e9 optick\u00e9 vl\u00e1kno, vo forme sveteln\u00fdch sign\u00e1lov odli\u0161n\u00fdch vlnov\u00fdch d\u013a\u017eok. Z\u00e1rove\u0148 ich dok\u00e1\u017ee odosla\u0165 na vzdialenos\u0165 tis\u00edcov kilometrov, kde ich je mo\u017en\u00e9 op\u00e4\u0165 rozpoji\u0165. Viete si to jednoducho predstavi\u0165 pomocou farieb. Ka\u017ed\u00e1 vlnov\u00e1 d\u013a\u017eka je prezentovan\u00e1 konkr\u00e9tnou farbou. Napr\u00edklad Mark\u00edza m\u00f4\u017ee v jednej chv\u00edli po modrej farbe posiela\u0165 \u0161portov\u00fd prenos a po \u017eltej farbe predpove\u010f po\u010dasia. DWDM vyu\u017e\u00edva pre ka\u017ed\u00fd z desiatok sign\u00e1lov maxim\u00e1lnu prenosov\u00fa r\u00fdchlos\u0165 optickej kabel\u00e1\u017ee. V jeden okamih tak r\u00fdchlos\u0165ou 100 Gb\/s je mo\u017en\u00e9 prenies\u0165 a\u017e 160 sign\u00e1lov v celkovej r\u00fdchlosti 16 Tb\/s, teda 160-kr\u00e1t viac ne\u017e predt\u00fdm. TV Mark\u00edza si nechala implementova\u0165 syst\u00e9m, ktor\u00fd aktu\u00e1lne dok\u00e1\u017ee pracova\u0165 a\u017e s 8 vlnov\u00fdmi d\u013a\u017ekami. V praxi to znamen\u00e1, \u017ee m\u00f4\u017ee vyu\u017ei\u0165 maxim\u00e1lne osem pripojen\u00ed, ka\u017ed\u00e9 s kapacitou do 10 Gb\/s. <\/p>\n\n\n\n TV Mark\u00edza z\u00edskala vlastn\u00fa vysokor\u00fdchlostn\u00fa transportn\u00fa sie\u0165 pre obojstrann\u00fd prenos d\u00e1t s mo\u017enos\u0165ou \u010fal\u0161ieho nav\u00fd\u0161enia jej kapacity do bud\u00facnosti. Realiz\u00e1cia tak\u00e9hoto nav\u00fd\u0161enia bude jednoduch\u00e1 a r\u00fdchla. Napokon, aj to s\u00fa d\u00f4vody, ktor\u00e9 zav\u00e1\u017eili pri rozhodovan\u00ed, \u010di si vybudova\u0165 vlastn\u00fa DWDM sie\u0165, alebo si nejak\u00fa podobn\u00fa prenaja\u0165 od in\u00fdch dod\u00e1vate\u013eov ako slu\u017ebu. V\u00fdhody vlastnej siete sa preuk\u00e1zali aj pri ned\u00e1vnom prekopnut\u00ed optick\u00e9ho k\u00e1bla ktor\u00fd vedie do TV Mark\u00edza. Tento incident bol zaznamenan\u00fd, av\u0161ak nedo\u0161lo k \u017eiadnemu v\u00fdpadku slu\u017eieb, v\u010faka z\u00e1lohovaniu do kruhu. Syst\u00e9m zafungoval absol\u00fatne spr\u00e1vne.<\/p>\n","protected":false},"excerpt":{"rendered":" Najnov\u0161ie a v re\u00e1lnom \u010dase. Ka\u017ed\u00e1 telev\u00edzna stanica chce div\u00e1kom prinies\u0165 naj\u010derstvej\u0161ie inform\u00e1cie, a to v najlep\u0161ej mo\u017enej obrazovej a zvukovej kvalite. M\u00e1lokto si v\u0161ak uvedomuje, \u017ee je potrebn\u00e9 zabezpe\u010di\u0165 prenos obrovsk\u00e9ho mno\u017estva produk\u010dn\u00fdch d\u00e1t, potrebn\u00fdch k n\u00e1sledn\u00e9mu pou\u017eitiu vo vysielan\u00ed. D\u00f4le\u017eit\u00fd je hladk\u00fd pr\u00edjem inform\u00e1ci\u00ed a ich n\u00e1sledn\u00e9 prevzatie odbavovac\u00edm pracoviskom. \u010ci u\u017e ide o \u017eiv\u00e9 prenosy, r\u00f4zne live vstupy […]<\/p>\n","protected":false},"author":30,"featured_media":39868,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[33],"tags":[309,361],"news_categories":[391],"class_list":["post-39914","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clanky","tag-sietove-riesenia","tag-sitova-reseni-sk","news_categories-sietove-riesenia"],"acf":[],"yoast_head":"\n![\"\"](\"https:\/\/www.soitron.com\/wp-content\/uploads\/2021\/03\/04_foto-All-nodes-small-1024x417.jpg\")
Dopyt po kapacite bude na\u010falej r\u00e1s\u0165<\/h2>\n\n\n\n