Dongosolo loyang'anira maukonde limakhala ndi udindo wonse pantchito yachitetezo. M'mawonekedwe apamwamba kwambiri owonetsera makanema apakanema, nthawi zambiri pamakhala zochitika monga kuchedwa kwa zithunzi ndi kuzizira. Pali zifukwa zambiri za zochitika izi, koma nthawi zambiri, kusintha kosinthika sikokwanira, zomwe zimapangitsa kuti bandwidth ikhale yosakwanira. Kusinthana ndi chipangizo chofunikira kwambiri padongosolo lonse. Kaya idakonzedwa bwino kapena ayi, imakhudzanso kukhazikika kwapambuyo pamaneti.

Posankha chosinthira, muyenera kusankha kuchokera pa bandwidth ndi paketi yotumizira. The backplane bandwidth ndiye kuchuluka kwa data komwe kumatha kuyendetsedwa pakati pa purosesa yosinthira mawonekedwe kapena khadi yolumikizira ndi basi ya data. Imawonetsa kuchuluka kwa kusinthana kwa data pakusintha, kukwezeka kwa bandwidth yammbuyo, kumapangitsanso kuthekera kosinthira deta. Mlingo wotumizira paketi umatchedwanso port throughput, zomwe zikutanthauza kuthekera kwa rauta kutumiza mapaketi a data padoko. Kukwera kwa paketi yotumizira, kumakhala bwinoko.

Pankhani ya netiweki topology, njira yowonera makanema apaintaneti yapakatikati komanso yayikulu ikuyenera kutengera kapangidwe ka maukonde amitundu itatu: gawo lofikira, chosanjikiza cholumikizira, ndi gawo loyambira.

Momwe mungasankhireaccess layer switch?
Chosinthira chosanjikiza cholumikizira chimalumikizidwa makamaka ndi kamera yakutsogolo yotanthauzira maukonde ndikulumikizidwa ndi chosinthira chophatikiza. Kutengera ndi 4M code stream ya 1080P network makamera, ndi njira zingati za 1080P network makamera angalumikizidwe ndi chosinthira chimodzi 100M doko lolowera?

Bandiwifi yeniyeni ya masinthidwe athu omwe amagwiritsidwa ntchito kwambiri ndi 50% -70% ya mtengo wamalingaliro, kotero bandwidth yeniyeni ya doko la 100M ndi 50M-70M. 4M*12=48M, kotero tikulimbikitsidwa kuti imodzi 100M kupeza lophimba akhoza kulumikiza munthu pazipita 12 1080P makamera maukonde. Panthawi imodzimodziyo, poganizira kuti kuwunika kwapaintaneti komweko kumagwiritsa ntchito kabisidwe kosinthika, mtengo wapamwamba wa mtsinje wa code kamera ukhoza kupitilira 4M bandwidth, ndipo kapangidwe kake ka bandwidth kumaganiziridwanso. Choncho, ndi bwino pamene kusintha kwa 100M kumayendetsedwa mkati mwa mayunitsi a 8, ndipo mayunitsi oposa 8 akulimbikitsidwa. Gigabit port. M'machitidwe ena owonetsetsa amtundu wa ultra-high-definition network monitoring systems, pofuna kutsimikizira kuti zithunzi zamakanema zodziwika bwino komanso kudalirika kwakukulu kwa kutumiza deta, gawo lofikira lingathenso kusankha mwachindunji kusintha kwa Gigabit.

Momwe mungasankhire switch ya aggregation layer?

Chosinthira chosanjikiza chophatikizira chimalumikizidwa makamaka ndi chosinthira chosanjikiza chofikira komanso chosinthira chapakati cha malo owunikira a uplink. Kuchita kwake ndikwapamwamba kuposa kosinthira kolowera. Nthawi zonse, chosinthira chophatikiza chikuyenera kusankha chosinthira cha Layer 2 chokhala ndi doko loyikira gigabit. Doko la 100M losinthira limalumikizidwa ndi chosinthira, ndipo doko la Gigabit limalumikizidwa ndi chosinthira chachikulu cha malo owunikira. Chiwerengero cha ma interfaces pa kusintha kwa aggregation chiyenera kuyendetsedwa mkati mwa 30. Imawerengedwabe kutengera 4M code stream ya 1080P network makamera. Kusintha kulikonse kofikira kutsogolo kumakhala ndi makamera a 6 1080P, ndipo chosinthira chophatikiza chimalumikizidwa ndi masiwichi 5 ofikira. Chiwopsezo chonse cha kusintha kwa aggregation ndi 4M * 6 * 5 = 120M, kotero kuti doko la cascade la switch aggregation ndi chosinthira chachikulu chiyenera kukhala doko la gigabit.

Kodi kusankha core switch?

Kusintha kwapakati kosanjikiza kumalumikizidwa makamaka ndi chosinthira chosanjikiza chophatikizira, nsanja yowunikira mavidiyo a uplink, seva yosungira, masanjidwe a digito ndi zida zina, zomwe ndizo maziko a dongosolo lonse lowunikira maukonde. muyenera kuganizira mphamvu ya bandwidth ya dongosolo lonse ndi momwe mungakhazikitsire kusintha kwapakati pazitsulo molakwika, zomwe zidzachititsa kuti kanema wa kanema alephere kusonyeza bwino.chifukwa chake, malo owunikira amalimbikitsa kusankha chosinthira chonse cha gigabit core. Ngati pali mfundo zambiri, ma VLAN ayenera kugawidwa, ndipo chosinthira chamagulu atatu a Gigabit core chiyenera kusankhidwa. Dongosolo lalikulu lowunika lomwe lili ndi makamera opitilira 150 liyenera kuganizira masinthidwe apakati a 10 Gigabit core.

Mfundo zazikuluzikulu za kusankha masinthidwe
Posankha chosinthira chowonera makanema pamaneti amdera lanu, chifukwa kupanikizika kwakukulu kuli pakusintha kosanjikiza kophatikizana, chosinthira chosanjikiza chophatikizira chiyenera kupirira kupsinjika kwa kuyang'anira ndi kusunga magalimoto komanso kukakamiza kwakuwona nthawi yeniyeni ndikuyimba foni. kuyang'anira. Chifukwa chake, ndikofunikira kwambiri kusankha chosinthira chomwe chikuyenera kuphatikizidwa. Ndikofunikira kusankha chosinthira choyendetsedwa ndi gigabit, chomwe chimatha kukonza maukonde, kukhathamiritsa ndikuwonjezera kuchuluka kwa kugwiritsidwa ntchito kwa bandwidth, ndikuwonetsetsa kuti kufalitsa kumayenda bwino.

Kusamalitsa
Ngati mungasankhe kasamalidwe ka switch ka Webusaiti, zikhala zosavuta. Ndi bwino kusankha kusintha kochepetsera liwiro, ndipo posankha kusinthana ndi cache yaikulu, panthawi imodzimodziyo, dongosolo loyang'anira maukonde limafuna kukhazikika kwakukulu ndi nthawi yeniyeni, ndipo malo ogwirira ntchito ndi ovuta komanso ovuta, choncho chitetezo Pakutumiza kokhazikika komanso koyenera kwa data yadongosolo, tikulimbikitsidwa kusankha zinthu zosinthira zamafakitale za Efaneti zokhala ndi magwiridwe antchito apamwamba komanso okhazikika bwino.