{"id":88584,"date":"2020-07-15T01:42:13","date_gmt":"2020-07-14T23:42:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/nokia-predstavila-setevuyu-operaczionnuyu-sistemu-sr-linux-dlya-marshrutizatorov"},"modified":"2020-07-15T01:42:13","modified_gmt":"2020-07-14T23:42:13","slug":"nokia-predstavila-setevuyu-operaczionnuyu-sistemu-sr-linux-dlya-marshrutizatorov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/nokia-predstavila-setevuyu-operaczionnuyu-sistemu-sr-linux-dlya-marshrutizatorov","title":{"rendered":"A Nokia apresentou o sistema operacional de rede SR Linux para roteadores","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A empresa Nokia apresentou<\/a><\/noindex> um novo sistema operacional de rede Service Router Linux<\/a><\/noindex> (SR Linux), orientado<\/a><\/noindex> para uso na infraestrutura de rede de data centers e ambientes em nuvem. O SR Linux \u00e9 considerado um componente chave das solu\u00e7\u00f5es Nokia Data Center Fabric e ser\u00e1 instalado em roteadores das linhas Nokia 7250 IXR e 7220 IXR. A solu\u00e7\u00e3o baseada no SR Linux j\u00e1 est\u00e1 sendo testada no novo data center da Apple na Dinamarca.<\/p>\n

Ao contr\u00e1rio de outros sistemas operacionais para equipamentos de rede baseados em n\u00facleo Linux, o SR Linux mant\u00e9m a capacidade de acesso ao ambiente Linux subjacente, que n\u00e3o \u00e9 oculto por APIs e interfaces especializadas. Os usu\u00e1rios t\u00eam acesso ao n\u00facleo Linux n\u00e3o modificado e aplica\u00e7\u00f5es de sistema b\u00e1sicas (bash, cron, Python, etc.), e aplicativos espec\u00edficos s\u00e3o criados com a ajuda do NetOps Toolkit, que n\u00e3o est\u00e1 vinculado a determinadas linguagens de programa\u00e7\u00e3o. Aplicativos baseados no NetOps Toolkit, como implementa\u00e7\u00f5es de protocolos de roteamento, t\u00eam acesso a v\u00e1rias APIs de rede, mas funcionam como componentes independentes. <\/p>\n

Essa abordagem permite gerenciar aplicativos separadamente do sistema operacional; por exemplo, \u00e9 poss\u00edvel atualizar um aplicativo sem fazer altera\u00e7\u00f5es no sistema ou atualizar o sistema operacional sem recompilar os aplicativos. Al\u00e9m dos aplicativos padr\u00e3o, como implementa\u00e7\u00f5es de protocolos de roteamento, \u00e9 permitido executar programas arbitr\u00e1rios de fornecedores terceiros. A utiliza\u00e7\u00e3o do n\u00facleo Linux n\u00e3o modificado simplifica significativamente a manuten\u00e7\u00e3o de patches para vulnerabilidades e a cria\u00e7\u00e3o de extens\u00f5es. \u00c9 afirmada a possibilidade de acesso a utilit\u00e1rios, patches e pacotes do Linux, assim como suporte para execu\u00e7\u00e3o em cont\u00eaineres isolados.
\n\u00c9 suportada a defini\u00e7\u00e3o de pontos de controle para reverter mudan\u00e7as em caso de problemas.<\/p>\n

\"A<\/center><\/p>\n

O gerenciamento pode ser realizado atrav\u00e9s de gNMI<\/a><\/noindex> (gRPC Network Management Interface), interface de linha de comando, plugins em Python e API baseadas em JSON-RPC.
\nPara acessar as funcionalidades dos servi\u00e7os em execu\u00e7\u00e3o no sistema, recomenda-se o uso de gRPC e do protocolo de troca de dados Protocol Buffers. As aplica\u00e7\u00f5es SR Linux podem trocar dados de estado utilizando a arquitetura 'publish\/subscribe' (pub\/sub), onde tamb\u00e9m s\u00e3o utilizados gRPC e Protocol Buffers, e o mecanismo de entrega garantida \u00e9 o IDB (Nokia Impart Database).
\nPara estruturar informa\u00e7\u00f5es sobre o estado da aplica\u00e7\u00e3o e a configura\u00e7\u00e3o utilizada, s\u00e3o empregados modelos de dados YANG (Yet Another Next Generation, RFC-6020<\/a><\/noindex>). <\/p>\n

As implementa\u00e7\u00f5es de protocolos de rede, incluindo Multiprotocol Border Gateway Protocol (MP-BGP), Ethernet VPN (EVPN) e Virtual Extensible LAN (VXLAN), s\u00e3o baseadas em uma pilha de protocolos comprovada do SR OS (Nokia Service Router Operating System), j\u00e1 utilizada em mais de um milh\u00e3o de roteadores Nokia. Para abstrair componentes de hardware, utiliza-se a subsistema XDP<\/a><\/noindex> (eXtensible Data Path).<\/p>\n

Para automatizar opera\u00e7\u00f5es de cria\u00e7\u00e3o, implanta\u00e7\u00e3o, configura\u00e7\u00e3o da infraestrutura de rede do data center, coleta e an\u00e1lise de telemetria, recomenda-se a Nokia Fabric Services Platform (FSP). A FSP tamb\u00e9m fornece ferramentas de simula\u00e7\u00e3o de rede para simplificar o planejamento, design, teste e depura\u00e7\u00e3o de redes em data centers. Os componentes de rede s\u00e3o simulados usando isolamento de cont\u00eaineres na plataforma Kubernetes, permitindo a execu\u00e7\u00e3o de inst\u00e2ncias separadas do SR Linux em seus pr\u00f3prios ambientes isolados.<\/p>\n

Essencialmente, a FSP permite a forma\u00e7\u00e3o program\u00e1tica de uma c\u00f3pia virtual da rede real e o uso do mesmo software (SR Linux em cont\u00eaineres) que \u00e9 utilizado em roteadores e switches reais nessa rede simulada. Al\u00e9m disso, na rede real e na simulada, usa-se a mesma configura\u00e7\u00e3o, o que permite usar a rede simulada como o primeiro passo para inserir e testar mudan\u00e7as. Com base no ambiente simulado, a FSP pode gerar todas as informa\u00e7\u00f5es necess\u00e1rias para a implanta\u00e7\u00e3o da rede real. <\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Nokia \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u043d\u043e\u0432\u0443\u044e \u0441\u0435\u0442\u0435\u0432\u0443\u044e \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 Service Router Linux (SR Linux), \u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0432 \u0441\u0435\u0442\u0435\u0432\u043e\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435 \u0446\u0435\u043d\u0442\u0440\u043e\u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u043e\u0431\u043b\u0430\u0447\u043d\u044b\u0445 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u0439. SR Linux \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u043a\u043b\u044e\u0447\u0435\u0432\u043e\u0439 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442 \u0440\u0435\u0448\u0435\u043d\u0438\u0439 Nokia Data Center Fabric \u0438 \u0431\u0443\u0434\u0435\u0442 \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0442\u044c\u0441\u044f \u043d\u0430 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u044b \u043b\u0438\u043d\u0435\u0439\u043a\u0438 Nokia 7250 IXR \u0438 7220 IXR. \u0420\u0435\u0448\u0435\u043d\u0438\u0435 \u043d\u0430 \u0431\u0430\u0437\u0435 SR Linux \u0443\u0436\u0435 \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u0442 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":88585,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-88584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47A Nokia apresentou o sistema operacional de rede SR Linux para roteadores | ProHoster","description":"A empresa 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