{"id":77132,"date":"2020-04-08T01:42:53","date_gmt":"2020-04-07T23:42:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/eto-ne-tolko-u-vas-internet-po-vsemu-miru-zamedlyaetsya-iz-za-vozrosshego-trafika"},"modified":"2020-04-08T01:42:53","modified_gmt":"2020-04-07T23:42:53","slug":"eto-ne-tolko-u-vas-internet-po-vsemu-miru-zamedlyaetsya-iz-za-vozrosshego-trafika","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/administrirovanie\/eto-ne-tolko-u-vas-internet-po-vsemu-miru-zamedlyaetsya-iz-za-vozrosshego-trafika","title":{"rendered":"To nije samo kod vas. Internet \u0161irom svijeta usporava zbog pove\u0107anog prometa.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"To
\n<\/p>\n

Niste primijetili da se ne\u0161to \u010dudno doga\u0111a s mre\u017eom u posljednje vrijeme? Na primjer, meni se redovito isklju\u010duje Wi-Fi, prestao je raditi omiljeni VPN, a neka se web-mjesta otvaraju pet sekundi ili na kraju nemaju slike.<\/p>\n

<\/p>\n

Vlade mnogih zemalja uvele su karantenu i ograni\u010dile izlazak ljudi iz ku\u0107e tokom pandemije koronavirusa. Kao rezultat, do\u0161lo je do zna\u010dajnog porasta internet saobra\u0107aja. Ljudi igraju igre, koriste video chatove, gledaju serije na video servisima, pa \u010dak i rade. Kapacitet mre\u017ee nikada nije testiran na tako globalnom nivou. I tako, kao rezultat, po\u010dinju se javljati prvi problemi.<\/p>\n

<\/p>\n

Cukerberg, na primjer, panikuje<\/a><\/noindex>, da u Facebooku \"poku\u0161avaju barem ne pasti\", jer promet na njihovim platformama, uklju\u010duju\u0107i Instagram i WhatsApp, obara sve povijesne rekorde. Zoom i YouTube tako\u0111er su otvoreno priznali probleme s preoptere\u0107enjem.<\/p>\n

<\/p>\n

Mo\u017eda ste i vi primijetili neke nepravilnosti. Sugovornik u Zoomu zamrzava se na nekoliko sekundi. Kvaliteta videa na YouTubeu, Twitchu ili Netflixu iz nekog razloga \u010dini se lo\u0161ijom nego prije. Svjetski promet, prema podacima Cloudflare-a, porastao je za 20% u samo mjesec dana, a infrastruktura nekih servisa zbog toga pati vi\u0161e nego ostalih.<\/a><\/noindex><\/p>\n

<\/p>\n

Da li internet usporava?<\/h2>\n

<\/p>\n

Nekoliko desetaka posto mo\u017ee se \u010diniti vrlo neznatnim, ali stvar je u tome \u0161to se od toga ne mo\u017eete skloniti. Ovdje se ne radi samo o jednom malom servisu koji je do\u017eivio \"habraefekt\", a broj korisnika je za jedan dan porastao za 5000%. Cijeli internet je optere\u0107en. U Seattlu, na primjer, gdje je promet u o\u017eujku porastao za 30%, \u010dak i najsporije no\u0107ne sate u o\u017eujku prema\u0161uju dnevne vr\u0161ne sate optere\u0107enja, koji su bili u sije\u010dnju.<\/p>\n

<\/p>\n

I mnogi korisnici to osje\u0107aju. Brzina preuzimanja podataka, prema informacijama Ookla, samo u posljednjih tjedan dana pala je za 4,9%. Tijekom mjeseca prosje\u010dna brzina preuzimanja pala je za 38% u San Joseu i za 24% u New Yorku (podaci Broadband Now). U oba grada trenutno se aktivno \u0161iri COVID-19.<\/p>\n

\n\"To
\nPromet u SAD-u porastao je prosje\u010dno za 23%<\/i><\/p>\n

Me\u0111utim, u SAD-u, prose\u010dna brzina preuzimanja putem fiksnog interneta je 140 Mbit\/s, \u0161to zna\u010di da je za ve\u0107inu korisnika \u010dak i 'usporen' internet dovoljan. A internet \u2014 lako skalabilan.<\/a><\/noindex> okru\u017eenje koje je naviklo da raste svake godine, iako ne tako brzim tempom. Oko 80% saobra\u0107aja sada \u010dini video, a najve\u0107i igra\u010di, poput Googlea i Netflixa, nau\u010dili su<\/a><\/noindex> raditi s njim na na\u010din koji izbjegava \"gu\u017eve\" u sistemu. Ulo\u017eili su milijarde i izgradili vlastitu ogromnu CDN<\/a><\/noindex>-infrastrukturu za direktno i masovno isporu\u010divanje sadr\u017eaja s poslu\u017eitelja. Ova infrastruktura, prema planovima, uzima u obzir godi\u0161nji porast prometa ka njihovim portalima od 30-50%. Ovaj put se rast dogodio br\u017ee.<\/p>\n

<\/p>\n

U Europi, prema podacima Telef\u00f3nica, volumen internetskog prometa od po\u010detka pandemije porastao je za 35%. Udvostru\u010den je promet kroz online igre i videokonferencije, dok su poruke na WhatsAppu po\u010dele stizati \u010detiri puta \u010de\u0161\u0107e.<\/p>\n

<\/p>\n

Internet je ljudima zamijenio sve druge oblike aktivnosti. Kino, restorani, \u0161etnje gradom, odmarali\u0161ta. U \u0160panjolskoj se njegovo kori\u0161tenje naglo smanjuje samo jedanput dnevno, u 8 nave\u010der, kada se ljudi diljem zemlje pribli\u017eavaju svojim prozorima kako bi zaplakali i odali po\u010dast<\/a><\/noindex> lije\u010dnicima i drugim zdravstvenim radnicima. Cijela zemlja aplaudira. A internetske usluge dobivaju odmor doslovno na pet minuta.<\/p>\n

\n\"To
\n<\/p>\n

Infrastruktura mre\u017ee slijedi hierarhiju<\/a><\/noindex>. Davatelji usluga prvog ranga, najve\u0107i ISP-ovi, upravljaju velikim magistralama, uklju\u010duju\u0107i promet izme\u0111u zemalja i kontinenata. Tvrtke drugog ranga, uklju\u010duju\u0107i ve\u0107inu ruskih<\/a><\/noindex> internet provajdera sa licencom Roskomnadzora, bave se regionalnim saobra\u0107ajem. A ISP tre\u0107e klase \u2014 obezbe\u0111uje konkretan kabl do va\u0161e ku\u0107e. U tim 'poslednjim kilometrima' obi\u010dno dolazi do problema. Ako je u poslednjoj nedelji brzina postala nesnosna, verovatno treba kriviti korisnike u va\u0161oj stambenoj zgradi. Ili stare kablove koji su prvobitno bili zami\u0161ljeni za prenos televizijskog signala u va\u0161 dom, a ne za slanje podataka ka globalnoj mre\u017ei.<\/p>\n

<\/p>\n

Zbog preoptere\u0107enja mre\u017ee mo\u017ee do\u0107i do pove\u0107anja latencije (kako, usput, ide va\u0161 ping u omiljenoj igri?). Neki web-mjesta tako\u0111er po\u010dinju dugo \"razmi\u0161ljati\". Velike kompanije poput Amazona i Facebooka imaju mogu\u0107nost prebacivanja optere\u0107enja s poslu\u017eitelja na poslu\u017eitelj, prera\u010dunati promet<\/a><\/noindex> i skalirati resurse, ako je potrebno. Manji operatori nemaju takve mogu\u0107nosti. Ako nisu bili spremni na nagli rast saobra\u0107aja unapred, usporavanje bi moglo postati veoma primetno.<\/p>\n

<\/p>\n

Spori ples<\/h2>\n

<\/p>\n

Kako bi nekako pomogli lokalnim ISP-ovima s prometom (a tako\u0111er i smanjili vlastite tro\u0161kove, gdje bih bez toga), velike tvrtke poduzimaju aktivne mjere. Netflix, Apple, Amazon (Prime Video i Twitch), Google (YouTube) i Disney sa svojim Disney+ svima su smanjili kvalitetu videa na svojim uslugama.<\/p>\n

<\/p>\n

Za neke od njih to je nu\u017ena mera: svoju dobit ostvaruju od mese\u010dne pretplate. Njena cena podrazumeva odre\u0111eni broj sati gledanja. A ako je ranije u SAD-u strimovanje videa zauzimalo ne vi\u0161e od 4 sata uve\u010de tokom radnog dana, sada aktivni period traje 10 sati, 2,5 puta du\u017ee. Ovde je ili potrebno pove\u0107ati cenu pretplate (dok nezaposlenost dosti\u017ee rekordne visine \u2014 niko vas ne\u0107e razumeti), ili tra\u017eiti na\u010dine za smanjenje tro\u0161kova nekim metodama.<\/p>\n

\n\"To
\nDjeca u Manchestera vje\u017ebaju aerobik putem YouTube-a<\/i><\/p>\n

Steam postavlja rekorde<\/a><\/noindex> po broju istovremeno aktivnih korisnika (7,25 milijuna) i po aktivnim korisnicima (23,5 milijuna s PC klijentom). Valve je objavio da \u0107e prestati<\/a><\/noindex> automatski a\u017eurirati igre, kako ne bi preopteretili mre\u017eu u doma\u0107instvima korisnika. Za igre koje dugo niste igrali, a\u017euriranje \u0107e se pokrenuti samo u sljede\u0107em vanpiku.<\/p>\n

<\/p>\n

Sony je tako\u0111er nedavno izjavila<\/a><\/noindex>, da \u0107e po\u010deti usporavati u\u010ditavanje igara za PlayStation u Europi, kako bi se nosili s pove\u0107anim prometom. A Facebook je smanjio kvalitetu videa u Facebook Live (pove\u0107anje gledatelja na streamovima ovdje je prema\u0161ilo 50% od sije\u010dnja), i pojednostavio pregled samo audio verzija, ako netko ima spor internet.<\/p>\n

<\/p>\n

Microsoft izvijestila je<\/a><\/noindex>, da je u njezinoj platformi Teams za poslovne poruke i videokonferencije tijekom tjedna pojavilo 12 milijuna novih korisnika (+37,5%). Slack je tako\u0111er izvijestio o porastu broja pla\u0107enih pretplatnika za 40%. Ali kvalitetu u Microsoft Teams nisu smanjivali, i sada usluga, prema podacima<\/a><\/noindex> Downdetectoru, pada doslovno svaki nekoliko dana (iako je jo\u0161 u velja\u010di sve bilo stabilno).<\/p>\n

<\/p>\n

A kako vi, jeste li primijetili ne\u0161to na sebi? Ili je sve dobro?<\/p>\n

\n\"To<\/a><\/noindex>
\n
Izvor: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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