Guhindura ni ijambo rusange ryikoranabuhanga ryohereza amakuru yoherezwa kumurongo uhuye wujuje ibisabwa nibikoresho byintoki cyangwa byikora ukurikije ibisabwa byo kohereza amakuru kumpande zombi zitumanaho. Ukurikije imyanya itandukanye ikora, irashobora kugabanywa mubice bigari byumuyoboro uhuza hamwe nu murongo waho uhuza. Guhindura imiyoboro yagutse ni ubwoko bwibikoresho byuzuza amakuru yo guhanahana amakuru muri sisitemu yitumanaho. None, ni ubuhe buryo bwo kohereza bwa switch? Ibikurikira, reka dukurikireIkoranabuhanga rya JHAkwiga byinshi kuri byo!

Uburyo bwo kohereza:
1.Gabanya guhinduranya
2.Ububiko-na-Imbere guhinduranya
3.Guhindura ibice

Iyi ngingo yibanze gusa kuburyo bwa mbere nubwa kabiri.

Byombi byaciwe no guhinduranya no kubika-no-guhinduranya ni uburyo bwo kohereza L2, kandi ingamba zabo zo kohereza zishingiye ku cyerekezo MAC (DMAC). Kuri iyi ngingo, nta tandukaniro riri hagati yuburyo bubiri bwo kohereza.
Itandukaniro rinini hagati yabo nigihe bakorana no kohereza, ni ukuvuga, uburyo switch ikorana isano iri hagati yo kwakira no kohereza inzira yamakuru.

Ubwoko bwo kohereza:
1. Gabanya
Kata Binyuze kuri Ethernet ya enterineti irashobora kumvikana nkumurongo wa matrix ya terefone ya terefone irenga buri cyambu. Iyo ibonye amakuru yapakiye kumurongo winjira, igenzura paki yumutwe, ikabona aderesi yaho igenewe paki, igakora imbonerahamwe yimbere yo kureba kugirango ihindurwe mubyambu bisohoka, ihuza kumasangano yinjiza nibisohoka, na Itambutsa amakuru paki muburyo butaziguye Icyambu kijyanye no kumenya imikorere yo guhinduranya. Kubera ko nta bubiko busabwa, gutinda ni bito cyane kandi guhana byihuta cyane, ninyungu zayo.

Ikibi cyacyo nuko kuberako ibikubiye mubipaki yamakuru atabitswe na enterineti ya Ethernet, ntishobora kugenzura niba paki yamakuru yatanzwe atariyo, kandi ntishobora gutanga ubushobozi bwo kumenya amakosa. Kuberako nta buffer, ibyinjira / ibisohoka ibyambu bifite umuvuduko utandukanye ntibishobora guhuzwa neza, kandi paki ziratakara byoroshye.

2. Guhindura ububiko-na-Imbere
Uburyo bwo kubika-no-imbere nuburyo bukoreshwa cyane murwego rwimiyoboro ya mudasobwa. Igenzura amakuru yipaki yicyambu cyinjira, ikuramo aderesi yerekanirwamo amakuru yamakuru nyuma yo gutunganya ikosa ryamakosa, ikayihindura icyambu gisohoka kugirango yohereze paki binyuze mumeza yo gushakisha. Kubera iyo mpamvu, uburyo bwo kubika-no-imbere butinda cyane mugutunganya amakuru, aribwo bugaragara, ariko irashobora gukora amakosa yo gutahura kumapaki yamakuru yinjira muri switch hanyuma igateza imbere imikorere yurusobe. Ni ngombwa cyane cyane ko ishobora gushyigikira ihinduka hagati yicyambu cyihuta kandi igakomeza ubufatanye hagati yicyambu cyihuta nicyambu gito.

3. Igice cyubusa
Iki ni igisubizo hagati yabiri yambere. Igenzura niba uburebure bwamakuru yamakuru arahagije kuri 64 bytes, niba ari munsi ya 64 bytes, byerekana ko ari paki yimpimbano, hanyuma ujugunye paki; niba irenze 64 bytes, noneho ohereza paki. Ubu buryo kandi ntabwo butanga igenzura ryamakuru. Umuvuduko wacyo wo gutunganya amakuru yihuta kuruta kubika-no-imbere, ariko gahoro kuruta kugororoka.

Yaba iyerekejwe imbere cyangwa ububiko bwohereza imbere, nuburyo bubiri bwo kohereza, kandi ingamba zabo zoherejwe zishingiye kubyo MAC (DMAC) igana. Nta tandukaniro riri hagati yuburyo bubiri bwo kohereza muriki kibazo. Itandukaniro rinini hagati yabo nigihe bakemura imbere, ni ukuvuga, uburyo switch ikemura isano iri hagati yo kwakira no kohereza inzira yamakuru.