{"id":30927,"date":"2019-10-31T21:38:17","date_gmt":"2019-10-31T18:38:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vesti-so-dna-it-giganty-nachali-aktivno-stroit-sobstvennye-podvodnye-magistralnye-seti\/"},"modified":"2019-10-31T21:38:17","modified_gmt":"2019-10-31T18:38:17","slug":"vesti-so-dna-it-giganty-nachali-aktivno-stroit-sobstvennye-podvodnye-magistralnye-seti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/administrirovanie\/vesti-so-dna-it-giganty-nachali-aktivno-stroit-sobstvennye-podvodnye-magistralnye-seti","title":{"rendered":"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>J\u00e1 nos habituamos h\u00e1 muito tempo a que grandes empresas de TI n\u00e3o se dediquem apenas ao lan\u00e7amento de produtos e presta\u00e7\u00e3o de servi\u00e7os, mas tamb\u00e9m participem ativamente no desenvolvimento da infraestrutura da internet. DNS do Google, armazenamento em nuvem e hospedagem da Amazon, data centers do Facebook em todo o mundo \u2014 quinze anos atr\u00e1s isso parecia muito ambicioso, e agora \u00e9 a norma \u00e0 qual todos se acostumaram. <\/p>\n<p>E assim, o quarteto das maiores empresas de TI, representado pela Amazon, Google, Microsoft e Facebook, chegou ao ponto de investir n\u00e3o apenas em data centers e servidores, mas tamb\u00e9m nos pr\u00f3prios cabos de fibra \u00f3tica \u2014 ou seja, adentraram um terreno que tradicionalmente era responsabilidade de estruturas completamente diferentes. Al\u00e9m disso, segundo as conclus\u00f5es <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.apnic.net\/2019\/04\/03\/the-future-of-undersea-internet-cables-are-big-tech-companies-forming-a-cartel\/\">no blog da APNIC<\/a><\/noindex>, o mencionado quarteto de gigantes da tecnologia n\u00e3o se limitou apenas \u00e0s redes terrestres, mas tamb\u00e9m \u00e0s linhas de comunica\u00e7\u00e3o transcontinentais, ou seja, aos cabos submarinos que todos conhecemos. <\/p>\n<p><img decoding=\"async\" alt=\"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas\" src=\"\/wp-content\/uploads\/2019\/04\/b98108dad0067d5cb401081c33080750.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nO mais surpreendente \u00e9 que n\u00e3o h\u00e1 uma necessidade aguda por novas redes no momento, mas as empresas est\u00e3o aumentando a capacidade de transmiss\u00e3o \"por precau\u00e7\u00e3o\". Infelizmente, encontrar estat\u00edsticas claras sobre a gera\u00e7\u00e3o global de tr\u00e1fego \u00e9 quase imposs\u00edvel devido a muitos marqueteiros, que operam com m\u00e9tricas como \"65 milh\u00f5es de postagens no Instagram diariamente\" ou \"N consultas de pesquisa no Google\" em vez de par\u00e2metros transparentes e compreens\u00edveis para os especialistas t\u00e9cnicos, como petabytes. Pode-se supor cautelosamente que o tr\u00e1fego di\u00e1rio \u00e9 de aproximadamente \u22482,5*10^18 bytes ou cerca de 2500 petabytes de dados. <br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nUma das raz\u00f5es pelas quais as redes de backbone modernas devem se expandir \u00e9 o crescimento da popularidade do servi\u00e7o de streaming Netflix e o crescimento paralelo do segmento m\u00f3vel. Apesar da tend\u00eancia geral de aumento na qualidade visual do conte\u00fado de v\u00eddeo em termos de resolu\u00e7\u00e3o e bitrate, bem como o aumento do consumo de tr\u00e1fego m\u00f3vel por usu\u00e1rios individuais (diante da desacelera\u00e7\u00e3o geral nas vendas de dispositivos m\u00f3veis em todo o mundo), ainda n\u00e3o se pode considerar que as redes de backbone estejam sobrecarregadas. <\/p>\n<p>Vamos nos voltar para <noindex><a rel=\"nofollow\" href=\"https:\/\/www.submarinecablemap.com\/\">o mapa da internet submarina do Google<\/a><\/noindex>: <\/p>\n<p><img decoding=\"async\" alt=\"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas\" src=\"\/wp-content\/uploads\/2019\/04\/f7524e91811a0239c7a1a98df11e8aae.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nVisualmente, \u00e9 dif\u00edcil determinar quantas novas rotas foram estabelecidas, e o pr\u00f3prio servi\u00e7o \u00e9 atualizado quase diariamente, sem fornecer uma hist\u00f3ria clara de mudan\u00e7as ou quaisquer dados estat\u00edsticos consolidados. Portanto, vamos consultar fontes mais antigas. De acordo com as informa\u00e7\u00f5es j\u00e1 <noindex><a rel=\"nofollow\" href=\"http:\/\/www.visualcapitalist.com\/wp-content\/uploads\/2017\/08\/cable-map-full.jpg\">neste mapa (50 Mb !!!)<\/a><\/noindex>, a capacidade de banda das redes intercontinentais existentes em 2014 era de cerca de 58 Tbps, dos quais apenas 24 Tbps estavam realmente em uso:<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/hk\/qn\/jd\/hkqnjdhh0mtpnvlgq2ijvr50gy4.png\"><img decoding=\"async\" alt=\"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas\" src=\"\/wp-content\/uploads\/2019\/04\/598b322d4c675ca120e3fbeadabcfb1f.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>Para aqueles que est\u00e3o prontamente se preparando para escrever: \u201cN\u00e3o acredito! Muito pouco!\u201d, vamos lembrar que estamos falando de <b>tr\u00e1fego intercontinental<\/b>, ou seja, ele \u00e9, por defini\u00e7\u00e3o, muito mais baixo do que dentro de uma regi\u00e3o espec\u00edfica, j\u00e1 que ainda n\u00e3o dominamos a teletransporte qu\u00e2ntico e n\u00e3o podemos nos esconder da lat\u00eancia de 300-400 ms. <\/p>\n<p>Em 2015, foi feito um progn\u00f3stico de que de 2016 a 2020 seriam estendidos ao longo do fundo do oceano mais 400.000 km de cabos de alta velocidade, o que aumentaria significativamente a capacidade da rede mundial. <\/p>\n<p>No entanto, se nos atentarmos \u00e0s estat\u00edsticas apresentadas no mapa acima, especificamente sobre 26 Tbps de carga em um canal total de 58 Tbps, surgem perguntas pertinentes: por que isso e por qu\u00ea? <\/p>\n<p>Em primeiro lugar, gigantes de TI come\u00e7aram a estabelecer suas pr\u00f3prias redes de alta velocidade para aumentar a conectividade dos elementos da infraestrutura interna das empresas em diferentes continentes. Por causa da lat\u00eancia mencionada, que chega a quase meio segundo entre dois pontos opostos do planeta, as empresas de TI precisam se esfor\u00e7ar para garantir a estabilidade de suas opera\u00e7\u00f5es. Essas quest\u00f5es s\u00e3o especialmente agudas para o Google e a Amazon; os primeiros come\u00e7aram a estabelecer suas pr\u00f3prias redes em 2014, quando decidiram 'estender' um cabo entre a costa leste dos EUA e o Jap\u00e3o para conectar seus data centers, sobre o que <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/228287\/\">foi noticiado no Habr<\/a><\/noindex>. Somente para conectar dois data centers distintos, o gigante de busca estava disposto a gastar $300 milh\u00f5es e estender cerca de 10.000 quil\u00f4metros de cabos pelo fundo do Oceano Pac\u00edfico. <\/p>\n<p>Se algu\u00e9m n\u00e3o sabia ou esqueceu, a instala\u00e7\u00e3o submarina de cabos \u00e9 um desafio de alta complexidade, come\u00e7ando com o mergulho de estruturas refor\u00e7adas com di\u00e2metro de at\u00e9 meio metro em zonas costeiras e terminando com a pesquisa paisag\u00edstica intermin\u00e1vel para a instala\u00e7\u00e3o da parte principal da rede a profundidades de v\u00e1rios quil\u00f4metros. Quando se trata do Oceano Pac\u00edfico, a dificuldade aumenta proporcionalmente \u00e0 profundidade e \u00e0 quantidade de cordilheiras no fundo do oceano. Para tais opera\u00e7\u00f5es, s\u00e3o necess\u00e1rios navios especializados, uma equipe de profissionais treinados e, essencialmente, v\u00e1rios anos de trabalho intenso, desde a fase de planejamento e pesquisa at\u00e9, de fato, a implementa\u00e7\u00e3o final da se\u00e7\u00e3o da rede. Al\u00e9m disso, deve-se considerar a coordena\u00e7\u00e3o das obras e a constru\u00e7\u00e3o de esta\u00e7\u00f5es de retransmiss\u00e3o na costa com os governos locais, o trabalho com ecologistas que monitoram a preserva\u00e7\u00e3o da linha costeira mais habit\u00e1vel (profundidade &lt;200 m) e assim por diante. <\/p>\n<p>Pode ser que, nos \u00faltimos anos, novos navios tenham sido colocados em opera\u00e7\u00e3o, mas h\u00e1 cinco anos havia uma fila s\u00f3lida de v\u00e1rios meses para os principais cabuladores da Huawei (sim, a empresa chinesa \u00e9 uma das l\u00edderes desse mercado). \u00c0 luz de todas essas informa\u00e7\u00f5es, a atividade dos gigantes tecnol\u00f3gicos neste segmento parece cada vez mais interessante. <\/p>\n<p>A posi\u00e7\u00e3o oficial de todas as grandes empresas de TI \u00e9 garantir a conectividade (independ\u00eancia de redes gerais) de seus data centers. E \u00e9 assim que os mapas submarinos de diferentes players de mercado aparecem de acordo com os dados <noindex><a rel=\"nofollow\" href=\"https:\/\/submarine-cable-map-2019.telegeography.com\/\">telegeography.com<\/a><\/noindex>:<\/p>\n<p><img decoding=\"async\" alt=\"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas\" src=\"\/wp-content\/uploads\/2019\/04\/eb6e63086d2ad42be01292c038b629e7.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas\" src=\"\/wp-content\/uploads\/2019\/04\/34adf8513552802f11d0f0d965b17635.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas\" src=\"\/wp-content\/uploads\/2019\/04\/48ce35212bb9200f00c4a6b6a34c90f2.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas\" src=\"\/wp-content\/uploads\/2019\/04\/09012cfe7aab001033e326c49ee86e3c.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nComo pode ser visto nos mapas, os apetite mais impressionantes n\u00e3o s\u00e3o da Google ou Amazon, mas sim do Facebook, que h\u00e1 muito deixou de ser 'apenas uma rede social'. Tamb\u00e9m \u00e9 evidente o interesse de todos os grandes players pela regi\u00e3o \u00c1sia-Pac\u00edfico, e apenas a Microsoft ainda se aproxima do Velho Continente. Se contarmos banalmente as rotas marcadas, podemos descobrir que apenas esse quarteto de empresas \u00e9 co-propriet\u00e1rio ou propriet\u00e1rio completo de 25 linhas de fibra \u00f3ptica j\u00e1 constru\u00eddas ou planejadas, a maioria das quais se dirige ao Jap\u00e3o, China e todo o Sudeste Asi\u00e1tico. E isso considerando apenas a estat\u00edstica do quarteto mencionado anteriormente de gigantes de TI, enquanto outras empresas, como Alcatel, NEC, Huawei e Subcom, tamb\u00e9m est\u00e3o construindo suas pr\u00f3prias redes. <\/p>\n<p>No geral, o n\u00famero de cabos submarinos transcontinentais, seja de empresas privadas ou com a participa\u00e7\u00e3o de capital privado, aumentou significativamente desde 2014 \u2014 desde o momento em que a Google anunciou a anteriormente mencionada conex\u00e3o de seu data center nos EUA com o data center no Jap\u00e3o:<\/p>\n<p><img decoding=\"async\" alt=\"Not\u00edcias do fundo do mar: gigantes de TI come\u00e7aram a construir suas pr\u00f3prias redes submarinas\" src=\"\/wp-content\/uploads\/2019\/04\/a43529cea601c6991d8d45e20cb93ad7.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nNa verdade, a motiva\u00e7\u00e3o de 'queremos conectar nossos data centers' \u00e9 insuficiente: dificilmente as empresas precisam de conectividade apenas por conectividade. Mais provavelmente, desejam isolar as informa\u00e7\u00f5es transmitidas e proteger sua pr\u00f3pria infraestrutura interna. <\/p>\n<p>Se pegarmos o chap\u00e9u de papel alum\u00ednio da gaveta, desdobr\u00e1-lo e apert\u00e1-lo um pouco mais, podemos formular uma hip\u00f3tese muito cuidadosa do seguinte tipo: agora estamos observando o surgimento de uma nova forma\u00e7\u00e3o de internet, na ess\u00eancia, uma rede corporativa mundial. Se lembrar que Amazon, Google, Facebook e Microsoft representam pelo menos metade do consumo mundial de tr\u00e1fego (hospedagem da Amazon, busca e servi\u00e7os da Google, redes sociais Facebook e Instagram, e desktops rodando Windows da Microsoft), \u00e9 hora de pegar o segundo chap\u00e9u. Porque, em teoria, em uma teoria bastante nebulosa, se projetos como o Google Fiber (aquele em que a Google tentou se posicionar como provedor para a popula\u00e7\u00e3o) come\u00e7arem a surgir em regi\u00f5es, estamos, de fato, testemunhando o nascimento de uma segunda internet, que ainda coexiste com a j\u00e1 existente. O qu\u00e3o dist\u00f3pico e insensato isso \u00e9 \u2014 deixo a voc\u00eas decidirem.<\/p>\n<p class=\"for_users_only_msg\">Apenas usu\u00e1rios registrados podem participar da pesquisa. <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/auth\/login\/\">Entre<\/a><\/noindex>, por favor.<\/p>\n<h2 class=\"default-block__polling-title\">O que voc\u00ea acha, isso realmente se assemelha \u00e0 constru\u00e7\u00e3o de uma 'internet paralela' ou somos apenas c\u00e9ticos?<\/h2>\n<ul class=\"content-list content-list_polling\">\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Sim, parece.<\/p>\n<\/li>\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    N\u00e3o, eles s\u00f3 precisam de uma conex\u00e3o est\u00e1vel entre os datacenters e n\u00e3o h\u00e1 amea\u00e7as aqui.<\/p>\n<\/li>\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Voc\u00ea definitivamente precisa de um chap\u00e9u de papel alum\u00ednio menos apertado, este aperta a cabe\u00e7a.<\/p>\n<\/li>\n<li class=\"content-list__item content-list__item_polling\">\n<p>                    Sua vers\u00e3o nos coment\u00e1rios.<\/p>\n<\/li>\n<\/ul>\n<p>    22 usu\u00e1rios votaram. 2 usu\u00e1rios se abstiveram.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/itsumma\/blog\/446750\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041c\u044b \u0443\u0436\u0435 \u0434\u0430\u0432\u043d\u043e \u043f\u0440\u0438\u0432\u044b\u043a\u043b\u0438, \u0447\u0442\u043e \u043a\u0440\u0443\u043f\u043d\u044b\u0435 IT-\u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0442\u0441\u044f \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u043c \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 \u0438 \u043e\u043a\u0430\u0437\u0430\u043d\u0438\u0435\u043c \u0443\u0441\u043b\u0443\u0433, \u043d\u043e \u0438 \u0430\u043a\u0442\u0438\u0432\u043d\u043e \u0443\u0447\u0430\u0441\u0442\u0432\u0443\u044e\u0442 \u0432 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0438 \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442-\u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b. DNS \u043e\u0442 Google, \u043e\u0431\u043b\u0430\u0447\u043d\u044b\u0435 \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430 \u0438 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 Amazon, \u0434\u0430\u0442\u0430-\u0446\u0435\u043d\u0442\u0440\u044b Facebook \u043f\u043e \u0432\u0441\u0435\u043c\u0443 \u043c\u0438\u0440\u0443 \u2014 \u043f\u044f\u0442\u043d\u0430\u0434\u0446\u0430\u0442\u044c \u043b\u0435\u0442 \u043d\u0430\u0437\u0430\u0434 \u044d\u0442\u043e \u043a\u0430\u0437\u0430\u043b\u043e\u0441\u044c \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0430\u043c\u0431\u0438\u0446\u0438\u043e\u0437\u043d\u044b\u043c, \u0430 \u0441\u0435\u0439\u0447\u0430\u0441 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u043e\u0440\u043c\u043e\u0439, \u043a \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432\u0441\u0435 \u043f\u0440\u0438\u0432\u044b\u043a\u043b\u0438. \u0418 \u0432\u043e\u0442, \u0447\u0435\u0442\u0432\u0435\u0440\u043a\u0430 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