Nyefee via Ethernet data Gịnị na-ejighi eriri

Data nnyefe n'elu netwọk na-agụnye a plurality nke nkwurịta okwu ngwaọrụ ikpokọta data ọwa, na a ịmafe ngwaọrụ nyere n'etiti ihe niile endpoints mgbanwe ozi.

N'agbata kọmputa ka ihe atụ, data nnyefe bụ oge ufodu na rụrụ dị ka mkpa nke ndị na-arụ ọrụ maka PC. The ngwaọrụ nwere ike nkịtị ruo ogologo oge, na-arụ iche (data nyefe na-adịghị rụrụ n'oge a), na mgbe ahụ zitere ebe ozi ma ọ bụ akwụkwọ. Mgbe ala-ọsọ ekwentị ọwa, na faịlụ a ga-ebugharị na ruo ọtụtụ minit, ma ọ na-wutere ọrụ. Iji kpochapụ ndị dị otú ahụ isi ike na netwọk e mepụtara, nke na-eji a nkịtị elu-ọsọ USB maka niile ngwaọrụ. Anyị agaghị emetụ n'elu oru nkọwa ebe a, na anyị nwere ike ikwu na ndị dị otú a na netwọk nwere ike na-anọchi anya n'ụdị interconnected kọmputa, ọ bụla nke a na-ọwa. Bụrụ na nke nyefe nke na kọmputa na-amata na adreesị, na onye ahụ ọ na-agwa okwu, na-enweta ihe ọmụma. Ọ bụrụ na ọ dị mkpa, nyefee a kpọmkwem onye ọrụ ga na-eche maka ntọhapụ nke ọwa, na mgbe ahụ na-amalite nyefe. Ọ bụrụ na ọ na-eme na abụọ ọrụ n'out oge na-agbalị ẹkemụm na akara, mgbe mgbe ịbụ abaghị uru n'ihi na a obere oge, na-agbalị ọzọ ruo mgbe otu n'ime ha n'ihu nke ọzọ. Onye were a nkịtị ọwa kọmputa nwere ike iji ya na zuru ọsọ na zuru. Nke a bụ nnọọ oru oma algọridim maka ime ihe na nke data nyefe bụ ngwa ngwa na a pụrụ ịdabere.

Dị ka ị eleghị anya ugbua chepụtara, ụdị netwọk bụ Ethernet aha. Tee yiri ụdị nkwurịta okwu na-a obere ebe, dị ka ime ụlọ. N'ihi ya, ọ bụ ụdị nke a obodo njikọ. An Ethernet netwọk na-etozu mba were fọrọ nke nta niile nke ụwa ahịa ya nke.

Radio-Ethernet e mepụtara ihe na nso nso. Nke a ọhụrụ ọkọlọtọ, na ya nwere ihe abụọ ojiji. Firstly, ọ bụ a wireless obodo ebe netwọk n'ime mgbidi nke ụlọ ma ọ bụ na ogige. Ọ doziri nsogbu nke "mmachi agagharị" n'ime nzukọ - niile ọrụ nwere ohere elu-edu na netwọk. Nke abụọ, Radio-Ethernet Njikọta-enye gị ohere iji mee ka nsogbu a nnukwu netwọk nke ndị debanyere aha, na nyefe nke onye data a rụrụ gafere ọtụtụ ikpeazụ mile nsogbu. Okwu ahụ bụ "ikpeazụ mile" na-eji na-ekpebi Njikọta n'etiti ụtụ magazin na ezigbo ya na ọnụ "a nnukwu netwọk." The anya bụ n'ezie nwere ike ịdị iche iche site a ole na ole mita elu 20-30 kilomita.

Ọ bụ na-ekwesịghị ekwesị na-eme ka onye ọ bụla ụtụ magazin radio "mgbe na-ezo", n'ihi na nke a, n'ihi na nkà na ụzụ mere, ọwa ga-ọnụ, na ozi ga-pumped nwayọọ nwayọọ. N'ihi ya, ọ bụ ihe ndị ọzọ dị irè iji ndokwa ọwa "ebe-to-multipoint" na-eme ka ọ dị ka ihe ndị debanyere aha. Ndị a ndị debanyere aha nwere ike iji ya na nkukota mode, dị ka Ethernet netwọk. Mkpebi a tụtara ime na mepụtara naanị na nso nso, na ọ bụ dakọtara na ot Ethernet-USB. Radio-Ethernet ọkọlọtọ IEEE ndondo natara International Committee, na ọ na-enye teknuzu nkwụsi ike nke arụmọrụ ọrụ.