{"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\/sv\/blog\/news\/nokia-predstavila-setevuyu-operaczionnuyu-sistemu-sr-linux-dlya-marshrutizatorov","title":{"rendered":"Nokia har lanserat n\u00e4tverksoperativsystemet SR Linux f\u00f6r routrar","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

F\u00f6retaget Nokia har presenterat<\/a><\/noindex> ett nytt n\u00e4tverksoperativsystem Service Router Linux<\/a><\/noindex> (SR Linux), inriktat<\/a><\/noindex> f\u00f6r anv\u00e4ndning i n\u00e4tverksinfrastrukturen i datacenter och molnmilj\u00f6er. SR Linux betraktas som en nyckelkomponent i Nokias Data Center Fabric-l\u00f6sningar och kommer att installeras p\u00e5 routrar i Nokia 7250 IXR och 7220 IXR-serierna. L\u00f6sningen baserad p\u00e5 SR Linux testas redan i det nya danska datacentret som Apple har.<\/p>\n

Till skillnad fr\u00e5n andra operativsystem f\u00f6r n\u00e4tverksutrustning baserat p\u00e5 Linux-k\u00e4rnan, har SR Linux bevarat m\u00f6jligheten att f\u00e5 \u00e5tkomst till den underliggande Linux-milj\u00f6n, som inte \u00e4r g\u00f6md bakom specialiserade API:er och gr\u00e4nssnitt. Anv\u00e4ndare har \u00e5tkomst till den of\u00f6r\u00e4ndrade Linux-k\u00e4rnan och grundl\u00e4ggande systemapplikationer (bash, cron, Python, etc.), och specifika applikationer skapas med hj\u00e4lp av verktygen i NetOps Toolkit, som inte \u00e4r knutna till specifika programmeringsspr\u00e5k. Applikationer baserade p\u00e5 NetOps Toolkit, till exempel implementeringar av routingprotokoll, f\u00e5r \u00e5tkomst till olika n\u00e4tverks-API:er, men fungerar som oberoende komponenter. <\/p>\n

Denna strategi m\u00f6jligg\u00f6r att hantera applikationer oberoende av operativsystemet, vilket inneb\u00e4r att man kan uppdatera applikationen utan att g\u00f6ra system\u00e4ndringar eller uppdatera operativsystemet utan att beh\u00f6va \u00e5terkompilera applikationerna. F\u00f6rutom de inbyggda applikationerna, s\u00e5som implementeringar av routingprotokoll, till\u00e5ts \u00e4ven k\u00f6rning av frist\u00e5ende program fr\u00e5n tredje part. Anv\u00e4ndningen av den of\u00f6r\u00e4ndrade Linux-k\u00e4rnan f\u00f6renklar avsev\u00e4rt underh\u00e5llet av s\u00e4kerhetspatchar och skapandet av till\u00e4gg. M\u00f6jlighet att f\u00e5 \u00e5tkomst till Linux-verktyg, patchar och paket anges, och support f\u00f6r att k\u00f6ra i isolerade containrar erbjuds.
\nDet st\u00f6ds att definiera kontrollpunkter f\u00f6r att \u00e5terst\u00e4lla \u00e4ndringar vid problem.<\/p>\n

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

Hantering kan utf\u00f6ras via gNMI<\/a><\/noindex> (gRPC Network Management Interface), kommandoradsgr\u00e4nssnitt, plugins f\u00f6r Python och JSON-RPC-baserad API.
\nF\u00f6r att f\u00e5 tillg\u00e5ng till funktionaliteten hos de tj\u00e4nster som finns i systemet rekommenderas att anv\u00e4nda gRPC och dataprotocollet Protocol Buffers. Applikationer f\u00f6r SR Linux kan utbyta statusinformation med hj\u00e4lp av en arkitektur av typen \"publish\/subscribe\" (pub\/sub), d\u00e4r \u00e4ven gRPC och Protocol Buffers anv\u00e4nds, och som mekanism f\u00f6r garanterad leverans anv\u00e4nds IDB (Nokia Impart Database).
\nF\u00f6r att strukturera information om applikationens tillst\u00e5nd och den anv\u00e4nda konfigurationen anv\u00e4nds YANG-datamodeller (Yet Another Next Generation, RFC-6020<\/a><\/noindex>). <\/p>\n

Implementeringar av n\u00e4tverksprotokoll, inklusive Multiprotocol Border Gateway Protocol (MP-BGP), Ethernet VPN (EVPN) och Virtual Extensible LAN (VXLAN), \u00e4r baserade p\u00e5 den bepr\u00f6vade protokollstacken SR OS (Nokia Service Router Operating System), som redan anv\u00e4nds p\u00e5 mer \u00e4n en miljon Nokia-routrar. F\u00f6r att abstrahera fr\u00e5n h\u00e5rdvarukomponenter anv\u00e4nds en subsystem XDP<\/a><\/noindex> (eXtensible Data Path).<\/p>\n

F\u00f6r att automatisera operationer kring skapande, distribution, konfiguration av datacenterens n\u00e4tverksinfrastruktur, samt insamling och analys av telemetri, erbjuds Nokia Fabric Services Platform (FSP). FSP tillhandah\u00e5ller ocks\u00e5 verktyg f\u00f6r programvarusimulering av n\u00e4tverken f\u00f6r att f\u00f6renkla planering, design, testning och fels\u00f6kning av n\u00e4tverk i datacenter. N\u00e4tverkskomponenter simuleras med hj\u00e4lp av beh\u00e5llarisolering baserad p\u00e5 Kubernetes-plattformen, vilket m\u00f6jligg\u00f6r k\u00f6rning av separata instanser av SR Linux i sina isolerade milj\u00f6er.<\/p>\n

I grund och botten g\u00f6r FSP det m\u00f6jligt att programvarum\u00e4ssigt skapa en virtuell kopia av det verkliga n\u00e4tverket och anv\u00e4nda samma programvara (SR Linux i beh\u00e5llare) i detta simulerade n\u00e4tverk som anv\u00e4nds p\u00e5 verkliga routrar och switchar. Dessutom anv\u00e4nds samma konfiguration i b\u00e5de det verkliga och simulerade n\u00e4tverket, vilket g\u00f6r att den programvarusimulerade n\u00e4tverket kan anv\u00e4ndas som det f\u00f6rsta steget f\u00f6r att inf\u00f6ra och testa f\u00f6r\u00e4ndringar. Baserat p\u00e5 den simulerade milj\u00f6n kan FSP generera all information som kr\u00e4vs f\u00f6r att distribuera det verkliga n\u00e4tverket. <\/p>\n

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

K\u00e4lla: 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 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