Hangarau Itarangi me tona whanaketanga

hangarau Itarangi - te tino noa mo te whakahaere o whatunga rohe. I teie mahana nui ratou maha te ahua o e rima miriona. Ki te kōrero tatou e pā ana ki te rorohiko, e kua rite rawa ki te kāri whatunga, whakahaere i runga i te hangarau Itarangi, nui atu te hunga ratou.

He aha e tenei ariā i roto i te tikanga kuiti? Te paerewa whatunga, i hāngai i runga i te whatunga pairati Izernet Whatunga. I whakawhanakehia te reira e Xerox, i whakatinana ai i roto i te whitu tekau-rima o tau, tonu te rau tau whakamutunga. Ahakoa kua whakamatauria nui mua tenei tikanga i roto i te kupenga reo irirangi o te University o Hawaii. ¶ Na i roto i te hawhe tuarua o te Heoi o te rau tau rua tekau. Na whakamahi tatou katoa o ngā tikanga o te uru tupurangi ki te taiao reo irirangi noa. huaina ana tēnei tikanga ko ina Aloha.

Kua puta ke Itarangi-hangarau i roto i te waru tekau nga tau o te rau tau rua tekau. Kamupene i roto i Hakihea, Intel me Xerox tahi hanga, ka whakaputaina he paerewa mō te Itarangi 2 whatunga. Ko tōna pūtake ko te taura tafenga, kua meinga nei e te putanga tino tata o te rangatōpū paerewa hangarau Itarangi. Ko te aha i huaina tenei putanga ko Itarangi Dix 2 ranei.

I runga i tenei paerewa i whakawhanakehia tetahi, ka karanga IEEE 802,3. He nui i roto i te noa ki tona mua, engari paku rerekē ia, kua tonu tenei Itarangi hangarau. Ahakoa te putanga hou e rerekē ngā taumata MAC ko LLC, tona tuakana i ngā taumata e rua ki te kotahi hongere. Tatou Dix-tautuhi kawa arowhai whirihoranga putanga e kore ko e te putanga hou. Na ko paku rerekē te ōwehenga āhuatanga, Heoi, nga rahi anga mōrahi me te mōkito hoki e rua taua paerewa.

Kei te maha Itarangi hangarau IEEE 802,3 tuku ki, i karangatia e noa te Itarangi Dix, kahore tetahi tohu. meatia tenei i roto i te tikanga ki te wehewehe i te paerewa hou i te tetahi o mua. Tei runga i te aha te momo o te taiao-a-tinana e whakamahia ana te, Itarangi IEEE 802,3 hangarau paerewa whakarato ngā rerekētanga (10 Base-5, tahi ki te 10 Base-2, 10Base-T hoki s10Base-FL, a, te mutunga, 10Base-FB).

Ko te paerewa, i whāngai huaina e iwa tekau-rima tau o te rau tau rua tekau, Itarangi nohopuku. Ko reira tika ki te mea e kore te mea te reira motuhake i roto i te tikanga maha. haapapu tenei te meka e ko te reira he whakamārama ohie o te ngä matua 802,3 - wāhanga 802.3i. Waihoki, tangohia te kotahi hou i roto i 1998 - Gigabit Itarangi, whakaahuatia nei i roto i tetahi atu wāhanga 802.3z tenei tuhinga taketake.

Ki te tuku me te whiwhi mōhiohio ā-rua i runga i te aho mo te katoa o te paparanga tinana i roto i te hangarau Itarangi, e whakarato ana te hōkaiipurangi o tekau megabits ia rua, whakamahia te Manchester waehere. Tino paerewa Itarangi katoa, tahi ki te rua whakamutunga, kei te whakamahia ōrite tikanga mo te reo wehenga i roto i te tuku raraunga. Kei te karangatia e te reira i CSMA / CD.

rere matou katoa i runga i te hītori katoa o te hangarau. He ra i ma'iri a'e nei i ia kua wha tekau nga tau. Ahakoa tenei, he rongonui tonu reira. I teie mahana, o te akoranga, i reira he hangarau hou, me te ake watea, engari te nuinga pea, ka hei hangarau Itarangi maha maha nga tau ki te whakarato i to tatou whatunga no te mea te reira pono, mahi, pai whakamahia hoki tekau tau maha.