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Kodi bandwidth ya backplane ndi mtengo wotumizira paketi ndi chiyani?

Ngati tigwiritsa ntchito fanizo lodziwika bwino, ntchito yosinthira ndi kugawa doko la netiweki kukhala ma doko angapo a netiweki kuti atumize deta, monga kupatutsa madzi kuchokera papaipi imodzi yamadzi kupita ku mapaipi angapo amadzi kuti anthu ambiri agwiritse ntchito.

"Mayendedwe amadzi" omwe amafalitsidwa mu netiweki ndi data, yomwe imapangidwa ndi paketi ya data.Kusinthako kumayenera kukonza paketi iliyonse, kotero bandwidth ya switch backplane ndiye mphamvu yayikulu yosinthira deta, ndipo kuchuluka kwa paketi yotumizira ndikutha kuwongolera kulandira deta ndikutumiza.

Kukula kwamitengo ya switch backplane bandwidth ndi kuchuluka kwa paketi yotumizira, kulimba kwa luso lakukonza deta, komanso kukwezera mtengo wa switch.

Kodi bandwidth ya backplane ndi mtengo wotumizira paketi ndi chiyani?-01

Backplane bandwidth:

Backplane bandwidth imatchedwanso backplane capacity, yomwe imatanthauzidwa ngati kuchuluka kwa data komwe kumatha kuyendetsedwa ndi chipangizo chosinthira mawonekedwe, makadi olumikizirana ndi basi ya data yosinthira.Imayimira kuthekera kwakusinthana kwa data pakusintha, mu Gbps, yotchedwa switching bandwidth.Nthawi zambiri, bandwidth yam'mbuyo yomwe titha kupeza imayambira pa Gbps zingapo mpaka mazana angapo a Gbps.

Mtengo wotumizira paketi:

Mlingo wotumizira paketi wa switch, womwe umadziwikanso kuti port throughput, ndi kuthekera kwa kusintha kwa mapaketi opita patsogolo pa doko linalake, nthawi zambiri mu pps, otchedwa mapaketi pamphindikati, yomwe ndi chiwerengero cha mapaketi omwe amatumizidwa pamphindikati.

Nayi maukonde wamba: Deta ya netiweki imafalitsidwa kudzera pamapaketi a data, omwe amakhala ndi data yopatsirana, mitu yazithunzi, ndi mipata yamafelemu.Zofunikira zochepa pa paketi ya data mu netiweki ndi ma byte 64, pomwe ma byte 64 ndi data yoyera.Powonjezera mutu wa chimango cha 8-byte ndi kusiyana kwa chimango cha 12-byte, paketi yaying'ono kwambiri pamaneti ndi 84 byte.

Chifukwa chake mawonekedwe amtundu wa duplex gigabit akafika pa liwiro la mzere, kuchuluka kwa paketi yotumizira kumakhala

=1000Mbps/((64+8+12) * 8bit)

= 1.488MPs.

Mgwirizano wapakati pa awiriwa:

Bandwidth ya switch backplane imayimira kuchuluka kwa kusinthana kwa data pakusinthako komanso ndi chizindikiro chofunikira cha kuchuluka kwa paketi yotumizira.Chifukwa chake ndege yam'mbuyo imatha kumveka ngati basi yapakompyuta, ndipo ndegeyo ikakwera, imakhala yolimba kwambiri pakukonza deta, zomwe zikutanthauza kuti kuchuluka kwapaketi yotumizira kumakwera.


Nthawi yotumiza: Jul-17-2023