Kana tikashandisa dimikira rinonyanyozivikanwa, basa rekuchinja nderekukamura chiteshi chetiweki kuita network dzakawanda dzekufambisa data, sekungotsausa mvura kubva papombi imwe yemvura kuenda kune akawanda mapaipi emvura kuti vanhu vakawanda vashandise.
Iyo "kuyerera kwemvura" inopfuudzwa mune network ndeye data, iyo inoumbwa nemapaketi ega ega data.Shanduko inoda kugadzirisa pakiti yega yega, saka bandwidth yekuchinja backplane ndiyo inogoneka yekutsinhanisa data, uye chiyero chekuendesa kwepaketi ndiko kugona kugadzirisa kugashira data uye wozoiendesa.
Iyo yakakura kukosha kwekuchinja backplane bandwidth uye packet yekufambisa chiyero, iyo yakasimba iyo data yekugadzirisa kugona, uye yakakwirira mutengo weiyo switch.
Backplane bandwidth:
Backplane bandwidth inonziwo backplane capacity, iyo inotsanangurwa sehuwandu hwehuwandu hwe data inogona kubatwa nekugadzirisa interface mudziyo, interface kadhi uye data bhasi rekuchinja.Iyo inomiririra iyo yakazara data yekutsinhana kugona kweiyo switch, muGbps, inonzi switching bandwidth.Kazhinji, iyo backplane bandwidth isu tinokwanisa kuwana kubva kune mashoma Gbps kusvika kumazana mashoma Gbps.
Packet yekutumira mwero:
Chiyero chekufambisa kwepaketi chekuchinja, chinozivikanwawo sechiteshi chekufambisa, iko kukwanisa kwekuchinja kuenda kumberi mapaketi pane imwe chiteshi, kazhinji mumapps, anonzi mapaketi pasekondi, inova nhamba yemapakiti anotumirwa pasekondi.
Heino network yakajairika pfungwa: Network data inofambiswa kuburikidza nemapaketi edata, ayo ane data rakafambiswa, furemu misoro, uye furemu gapu.Izvo zvishoma zvinodikanwa zvepaketi yedata munetiweki ndeye 64 bytes, uko 64 bytes idata rakachena.Kuwedzera 8-byte furemu musoro uye 12-byte furemu gap, diki packet mune network ndeye 84 bytes.
Saka kana iyo yakazara duplex gigabit interface inosvika pakumhanya kwemutsara, mwero wekutakura wepaketi uri
=1000Mbps/((64+8+12) * 8bit)
=1.488Mpps.
Hukama huripo pakati pezviviri:
Iyo bandwidth yekuchinja backplane inomiririra iyo yakazara data yekuchinjana kugona kweiyo switch uye zvakare chiratidzo chakakosha cheyero yekufambisa kwepaketi.Saka iyo backplane inogona kunzwisiswa sebhazi rekombuta, uye iyo yakakwira iyo backplane, iyo yakasimba iyo data yekugadzirisa kwayo kugona, izvo zvinoreva kuti yakakwira mwero wekufambisa kwepaketi.
Nguva yekutumira: Jul-17-2023