{"id":102,"date":"2026-04-04T16:14:15","date_gmt":"2026-04-04T16:14:15","guid":{"rendered":"https:\/\/blog.asl-sl.com.br\/?page_id=102"},"modified":"2026-04-04T16:14:16","modified_gmt":"2026-04-04T16:14:16","slug":"o-protocolo-rose","status":"publish","type":"page","link":"https:\/\/blog.asl-sl.com.br\/?page_id=102","title":{"rendered":"O protocolo ROSE."},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Protocolo ROSE (Remote Operations Service Element)<\/h2>\n\n\n\n<p>O ROSE (<em>Remote Operations Service Element<\/em>) \u00e9 um protocolo de camada de rede (camada 3 do modelo OSI) desenvolvido especificamente para redes de r\u00e1dio amador em modo pacote (<em>packet radio<\/em>). Criado por Tom Moulton (W2VY) e pela organiza\u00e7\u00e3o RATS (<em>Radio Amateur Telecommunications Society<\/em>) no final dos anos 1980, ele foi projetado como uma adapta\u00e7\u00e3o simplificada do protocolo X.25 do ITU-T, com o objetivo de implementar comuta\u00e7\u00e3o de pacotes (<em>packet switching<\/em>) sobre enlaces de r\u00e1dio que j\u00e1 utilizam o AX.25 na camada 2. Enquanto o AX.25 cuida do enlace ponto a ponto entre duas esta\u00e7\u00f5es, o ROSE prov\u00ea o endere\u00e7amento e o roteamento fim a fim atrav\u00e9s de m\u00faltiplos n\u00f3s intermedi\u00e1rios, formando uma rede de longa dist\u00e2ncia sem necessidade de infraestrutura cabeada.<\/p>\n\n\n\n<p>O endere\u00e7amento no ROSE \u00e9 baseado em um esquema num\u00e9rico de 10 d\u00edgitos inspirado no plano de numera\u00e7\u00e3o telef\u00f4nico internacional E.164, onde os primeiros d\u00edgitos identificam o pa\u00eds e a regi\u00e3o geogr\u00e1fica do n\u00f3, facilitando o roteamento hier\u00e1rquico. Cada n\u00f3 ROSE atua como um comutador de circuito virtual, estabelecendo chamadas (<em>calls<\/em>) entre origem e destino atrav\u00e9s de uma sequ\u00eancia de SVCs (<em>Switched Virtual Circuits<\/em>) \u2014 canais l\u00f3gicos multiplexados sobre o mesmo canal de r\u00e1dio f\u00edsico. O protocolo mant\u00e9m tabelas de roteamento est\u00e1ticas ou semi-din\u00e2micas nos n\u00f3s, e o encaminhamento dos pacotes \u00e9 feito com base no n\u00famero de destino, de forma an\u00e1loga a uma central telef\u00f4nica de dados. O controle de fluxo e a garantia de entrega s\u00e3o herdados do X.25, com janelas deslizantes e confirma\u00e7\u00f5es expl\u00edcitas em cada salto da rede.<\/p>\n\n\n\n<p>Do ponto de vista operacional, o ROSE se integra de forma transparente ao ambiente AX.25: a camada 2 continua sendo respons\u00e1vel pela comunica\u00e7\u00e3o confi\u00e1vel entre n\u00f3s adjacentes, enquanto o ROSE gerencia o caminho completo da chamada de ponta a ponta. Isso permitiu que a arquitetura fosse implantada de maneira incremental, aproveitando o hardware TNCs (<em>Terminal Node Controllers<\/em>) j\u00e1 existente nas esta\u00e7\u00f5es amadoras. Apesar de ter sido bastante utilizado na Europa e Am\u00e9rica do Norte durante os anos 1990 como espinha dorsal de redes regionais de packet radio, o ROSE perdeu espa\u00e7o progressivamente com o advento da Internet e de solu\u00e7\u00f5es como o protocolo TCP\/IP sobre r\u00e1dio (especialmente via redes AMPR \u2014 <em>AMateur Packet Radio<\/em>), ficando hoje restrito a redes de legado e a entusiastas de r\u00e1dio amador que mant\u00eam a infraestrutura hist\u00f3rica em opera\u00e7\u00e3o.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Protocolo ROSE (Remote Operations Service Element) O ROSE (Remote Operations Service Element) \u00e9 um protocolo de camada de rede (camada 3 do modelo OSI) desenvolvido especificamente para redes de r\u00e1dio amador em modo pacote (packet radio). Criado por Tom Moulton (W2VY) e pela organiza\u00e7\u00e3o RATS (Radio Amateur Telecommunications Society) no final dos anos 1980, ele <a class=\"more-link\" href=\"https:\/\/blog.asl-sl.com.br\/?page_id=102\">Leia mais&#8230; &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-102","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>O protocolo ROSE. - Academia do software livre, S\u00e3o Louren\u00e7o - MG.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.asl-sl.com.br\/?page_id=102\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O protocolo ROSE. - Academia do software livre, S\u00e3o Louren\u00e7o - MG.\" \/>\n<meta property=\"og:description\" content=\"Protocolo ROSE (Remote Operations Service Element) O ROSE (Remote Operations Service Element) \u00e9 um protocolo de camada de rede (camada 3 do modelo OSI) desenvolvido especificamente para redes de r\u00e1dio amador em modo pacote (packet radio). 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