{"id":121433,"date":"2025-01-20T21:46:10","date_gmt":"2025-01-20T19:46:11","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/otkryt-instrumentarij-dlya-programmiruemyh-ethernet-kommutatorov-intel-tofino"},"modified":"2025-01-20T21:46:10","modified_gmt":"2025-01-20T19:46:11","slug":"otkryt-instrumentarij-dlya-programmiruemyh-ethernet-kommutatorov-intel-tofino","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/otkryt-instrumentarij-dlya-programmiruemyh-ethernet-kommutatorov-intel-tofino","title":{"rendered":"Byl otev\u0159en n\u00e1stroj pro programovateln\u00e9 Ethernetov\u00e9 p\u0159ep\u00edna\u010de Intel Tofino","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Intel uvedla n\u00e1stroj, kter\u00fd umo\u017e\u0148uje vytv\u00e1\u0159et vlastn\u00ed aplikace pro zpracov\u00e1n\u00ed paket\u016f v programovateln\u00fdch Ethernetov\u00fdch p\u0159ep\u00edna\u010d\u00edch \u0159ady Tofino. Pod licenc\u00ed Apache 2.0 byl otev\u0159en zdrojov\u00fd k\u00f3d backendu pro kompil\u00e1tor p4c a komponenty v\u00fdvojov\u00e9ho prost\u0159ed\u00ed Intel P4 Studio, jako jsou ovlada\u010de, model simulace p\u0159ep\u00edna\u010de, server a klient pro protokol BF Runtime. K vytv\u00e1\u0159en\u00ed aplikac\u00ed se pou\u017e\u00edv\u00e1 dom\u00e9nov\u011b orientovan\u00fd programovac\u00ed jazyk P4 (Programming Protocol-independent Packet Processors), ur\u010den\u00fd k definov\u00e1n\u00ed logiky zpracov\u00e1n\u00ed paket\u016f v s\u00ed\u0165ov\u00fdch za\u0159\u00edzen\u00edch, jako jsou s\u00ed\u0165ov\u00e9 karty, p\u0159ep\u00edna\u010de, sm\u011brova\u010de a firewally. <\/p>\n

Publikovan\u00fd backend umo\u017e\u0148uje p\u0159ekl\u00e1dat programy v jazyce P4 do podoby vhodn\u00e9 pro nasazen\u00ed na p\u0159ep\u00edna\u010d\u00edch \u0159ady Intel Tofino. D\u00edky tomu mohou u\u017eivatel\u00e9 p\u0159ep\u00edna\u010d\u016f vytv\u00e1\u0159et aplikace, kter\u00e9 roz\u0161i\u0159uj\u00ed standardn\u00ed funk\u010dnost, m\u011bn\u00ed logiku pr\u00e1ce nebo p\u0159izp\u016fsobuj\u00ed za\u0159\u00edzen\u00ed specifik\u016fm sv\u00fdch s\u00edt\u00ed. <\/p>\n

Programy napsan\u00e9 v jazyce P4 se kompiluj\u00ed do podoby pro c\u00edlov\u00e9 platformy, kter\u00e9 mohou b\u00fdt jak hardwarov\u00e9 (FPGA, programovateln\u00e9 ASIC), tak softwarov\u00e9 (x86, BPF). Spolu s k\u00f3dem pro instalaci na c\u00edlov\u00e9 syst\u00e9my kompil\u00e1tor generuje runtime pro spr\u00e1vu aplikace pomoc\u00ed protokol\u016f Protobuf\/gRPC a API P4Runtime. <\/p>\n

Typick\u00e1 logika pr\u00e1ce program\u016f spo\u010d\u00edv\u00e1 v klasifikaci paket\u016f podle jejich hlavi\u010dek a prov\u00e1d\u011bn\u00ed akc\u00ed na p\u0159\u00edchoz\u00edch paketech, jako je p\u0159esm\u011brov\u00e1n\u00ed, odm\u00edtnut\u00ed, zm\u011bna TTL a v\u00fdm\u011bna pol\u00ed. Jazyk nen\u00ed v\u00e1z\u00e1n na s\u00ed\u0165ov\u00e9 protokoly a m\u00edsto vestav\u011bn\u00e9 podpory konven\u010dn\u00edch protokol\u016f, jako jsou IP, Ethernet, TCP a VxLAN, poskytuje v\u00fdvoj\u00e1\u0159\u016fm mo\u017enost definovat jak\u00e9koli protokoly v r\u00e1mci kompilovan\u00fdch aplikac\u00ed (v\u00fdvoj\u00e1\u0159 p\u0159ipojuje popis form\u00e1t\u016f hlavi\u010dek a pol\u00ed protokolu).

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

Krom\u011b publikovan\u00e9ho backendu pro p\u0159ep\u00edna\u010de Intel Tofino projekt P4 poskytuje backend pro kompilaci P4 aplikac\u00ed do k\u00f3du v jazyce C, kter\u00fd m\u016f\u017ee b\u00fdt n\u00e1sledn\u011b zkompilov\u00e1n do form\u00e1tu vhodn\u00e9ho pro prov\u00e1d\u011bn\u00ed v virtu\u00e1ln\u00edm stroji<\/a> eBPF uvnit\u0159 j\u00e1dra Linux. Projektem je tak\u00e9 vyv\u00edjen otev\u0159en\u00fd simul\u00e1tor p\u0159ep\u00edna\u010de, kter\u00fd lze pou\u017e\u00edt pro prov\u00e1d\u011bn\u00ed experiment\u016f ve virtu\u00e1ln\u00ed s\u00edti Mininet, a backend pro kompilaci P4 program\u016f pro simul\u00e1tor.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043a \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440\u0443 p4c \u0438 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 \u0441\u0440\u0435\u0434\u044b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 Intel P4 Studio, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u044b, \u043c\u043e\u0434\u0435\u043b\u044c \u0441\u0438\u043c\u0443\u043b\u044f\u0446\u0438\u0438 \u043a\u043e\u043c\u043c\u0443\u0430\u0442\u043e\u0440\u0430, \u0441\u0435\u0440\u0432\u0435\u0440 \u0438 \u043a\u043b\u0438\u0435\u043d\u0442 \u0434\u043b\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 BF Runtime. \u0414\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0435\u0434\u043c\u0435\u0442\u043d\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u044f\u0437\u044b\u043a \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f P4 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":121434,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-121433","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\udd47 Otev\u0159eny n\u00e1stroje pro programovateln\u00e9 Ethernet switche Intel Tofino | ProHoster","description":"Spole\u010dnost 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