Isistimu yokuqapha inethiwekhi ithatha isikhundla esiphelele kuphrojekthi yezokuphepha. Kuhlelo lokuqapha ividiyo yenethiwekhi enencazelo ephezulu, kuvame ukuba nezigigaba ezifana nokulibaziseka kwezithombe kanye nokuba yiqhwa. Kunezizathu eziningi zalezi zenzakalo, kodwa ezimweni eziningi, ukucushwa kokushintsha akunangqondo ngokwanele, okuholela kumkhawulokudonsa onganele. Iswishi iyisisetshenziswa esibalulekile kulo lonke uhlelo. Ukuthi ilungiswe ngendlela efanele noma cha kuthinta ngqo ukuzinza kwakamuva kwesistimu yokuqapha inethiwekhi.

Uma ukhetha ukushintsha, kufanele ukhethe kumkhawulokudonsa kanye nezinga lokudlulisela iphakethe. I-backplane bandwidth yinani eliphakeme ledatha elingasingathwa phakathi kwephrosesa yesixhumi esibonakalayo noma ikhadi lesixhumi esibonakalayo kanye nebhasi ledatha. Imaka isamba sokushintshana kwedatha sokushintsha, ukuphakama komkhawulokudonsa ongemuva, amandla okucubungula idatha anamandla. Izinga lokudlulisela iphakethe libizwa nangokuthi i-port throughput, okubhekisela emandleni omzila wokudlulisa amaphakethe edatha embobeni. Uma izinga lokudlulisela iphakethe liphakeme, lingcono.

Ngokuya nge-topology yenethiwekhi, isistimu yokugada ividiyo yenethiwekhi ephakathi nendawo nenkulu enencazelo ephezulu idinga ukusebenzisa ukwakheka kwenethiwekhi enezendlalelo ezintathu: isendlalelo sokufinyelela, isendlalelo sokuhlangana, nesendlalelo esiyinhloko.

Indlela yokukhethafinyelela ukushintshwa kwesendlalelo?
Iswishi yesendlalelo sokufinyelela ixhunywe kakhulu kukhamera yenethiwekhi esekupheleni kwe-high-definition futhi ixhunywe kuswishi yokuhlanganisa. Ngokusekelwe ekusakazweni kwekhodi ye-4M yamakhamera enethiwekhi ye-1080P, zingaki iziteshi zamakhamera enethiwekhi ye-1080P ezingaxhunywa ekushintsheni kokufinyelela kwembobo eyodwa engu-100M?

Umkhawulokudonsa wangempela wokushintsha kwethu okuvame ukusetshenziswa ngu-50% -70% yenani lethiyori, ngakho umkhawulokudonsa wangempela wembobo engu-100M ngu-50M-70M. 4M*12=48M, ngakho-ke kunconywa ukuthi iswishi eyodwa yokufinyelela engu-100M ingaxhuma kumkhawulo wamakhamera enethiwekhi angu-12 1080P. Ngesikhathi esifanayo, uma kucatshangelwa ukuthi ukuqapha kwenethiwekhi kwamanje kusebenzisa ukubhala ngekhodi okuguquguqukayo, inani eliphakeme lokusakaza kwekhodi yekhamera lingase lidlule umkhawulokudonsa ongu-4M, futhi nomklamo wokuphinda unqamule komkhawulokudonsa nawo uyacatshangelwa. Ngakho-ke, kungcono kakhulu uma ukushintsha kokufinyelela kwe-100M kulawulwa ngaphakathi kwamayunithi angu-8, futhi amayunithi angaphezu kuka-8 ayanconywa. Imbobo ye-Gigabit. Kwezinye izinhlelo zokuqapha inethiwekhi ye-ultra-high-definition, ukuze kuqinisekiswe izithombe zevidiyo ezinencazelo ephezulu kanye nokuthembeka okuphezulu kokudluliswa kwedatha, isendlalelo sokufinyelela singaphinda sikhethe ngokuqondile ukushintshwa okugcwele kwe-Gigabit.

Ungakhetha kanjani iswishi yesendlalelo sokuhlanganisa?

Iswishi yesendlalelo sokuhlanganisa ixhunywe ngokuyinhloko ekushintsheni kwesendlalelo sokufinyelela kanye neswishi eyinhloko yesikhungo sokuqapha i-uplink. Ukusebenza kungaphezulu kwalokho kweswishi yokufinyelela. Ngaphansi kwezimo ezijwayelekile, iswishi yokuhlanganisa idinga ukukhetha iswishi Yesendlalelo 2 enembobo yokulayisha ye-gigabit. Imbobo engu-100M yeswishi ixhunywe kuswishi, futhi imbobo ye-Gigabit ixhunywe kuswishi eyinhloko yesikhungo sokuqapha. Inani lezindawo zokusebenzelana kuswishi yokuhlanganisa kufanele lilawulwe phakathi kuka-30. Isabalwa ngokusekelwe ekusakazeni kwekhodi ye-4M yamakhamera enethiwekhi angu-1080P. Iswishi ngayinye yesendlalelo sokufinyelela ekugcineni inamakhamera enethiwekhi angu-6 1080P, futhi iswishi yokuhlanganisa ixhunywe kumaswishi esendlalelo sokufinyelela angu-5. Isamba somkhawulokudonsa wokushintsha kokuhlanganisa ngu-4M*6*5=120M, ngakho imbobo ye-cascade yeswishi yokuhlanganisa kanye neswishi eyinhloko kufanele kube imbobo yegigabit.

Ungakhetha kanjani i-core switch?

Ukushintsha kwesendlalelo esiyinhloko kuxhunywe ngokuyinhloko ne-switch ye-aggregation layer, inkundla yokuqapha ividiyo yesikhungo sokuqapha i-uplink, iseva yesitoreji, i-matrix yedijithali nezinye izinto zokusebenza, okuwumgogodla walo lonke uhlelo lokuqapha lwenethiwekhi olunencazelo ephezulu.bese ukhetha ukushintshwa okuyisisekelo, kufanele ucabangele umthamo womkhawulokudonsa wesistimu yonke kanye nendlela yokumisa ukushintshwa kwezingqimba eziyinhloko ngendlela engafanele, okuzokwenza nakanjani isikrini sevidiyo sihluleke ukubonisa kahle.ngakho-ke, isikhungo sokuqapha incoma ukukhetha ukushintshwa okugcwele kwe-gigabit core. Uma kunamaphuzu amaningi, ama-VLAN adinga ukuhlukaniswa, futhi kufanele kukhethwe inkinobho eyinhloko ye-Gigabit enezendlalelo ezintathu. Isistimu yokugada enkulu enamakhamera angaphezu kwe-150 kufanele icabangele ukushintshwa okuyisisekelo kwe-Gigabit eyizendlalelo ezintathu.

Amaphuzu abalulekile wokukhetha ukushintsha
Lapho ukhetha iswishi yokugadwa kwevidiyo kunethiwekhi yendawo, ngenxa yokuthi ukucindezela okukhulu kuseswishi yesendlalelo sokuhlanganisa, iswishi yesendlalelo sokuhlanganisa kufanele ithwale ingcindezi yokuqapha nokugcina ithrafikhi kanye nokucindezela kokubuka kwesikhathi sangempela kanye nokushaya ucingo. ukuqapha. Ngakho-ke, kubaluleke kakhulu ukukhetha iswishi yokuhlanganisa esebenzayo. Kunconywa ukukhetha ukushintshwa okuphethwe i-gigabit, okungalungisa inethiwekhi, kuthuthukise futhi kwandise izinga lokusebenzisa umkhawulokudonsa, futhi kuqinisekise ukushelela kokudlulisela.

Izinyathelo zokuzivikela
Uma ukhetha ukuphathwa kweswishi ephethwe yiWebhu, kuzoba lula kakhulu. Kungcono ukukhetha ukushintshwa kokunciphisa isivinini, futhi lapho ukhetha ukushintshwa nge-cache enkulu, ngesikhathi esifanayo, uhlelo lokuqapha inethiwekhi ludinga ukuzinza okuphezulu nokusebenza kwesikhathi sangempela, futhi indawo yokusebenza kwemishini iyinkimbinkimbi futhi inzima, ngakho-ke. ukuze kuvikelwe Ukuze kudluliswe idatha yesistimu ezinzile futhi ephumelelayo, kunconywa ukukhetha imikhiqizo yokushintsha ye-Ethernet yezimboni enokusebenza okuphezulu kwezimboni nokuzinza okuhle.