Kungani Isikhungo Sakho Sedatha Sidinga Abathengisi Bepakethe Yenethiwekhi?
Uyini umthengisi wamaphakethe enethiwekhi?
I-network packet broker (NPB) ubuchwepheshe obusebenzisa amathuluzi ahlukahlukene okuqapha ukufinyelela nokuhlaziya ithrafikhi kunethiwekhi. Izihlungi ze-packet broker ziqoqa ulwazi lwethrafikhi kusuka kuzixhumanisi zenethiwekhi bese zilusabalalisa kuthuluzi lazo lokuqapha inethiwekhi elifanele. Ngokuba namakhono okuhlunga athuthukile, i-NPB ingasiza ekuhlinzekeni ukusebenza kwedatha okungcono, ukuphepha okuqinile, kanye nendlela esheshayo yokuthola imbangela yanoma yiziphi izinkinga ngokusebenzisa ubuhlakani besicelo obuthuthukisiwe. I-NPB yandisa ukusebenza kahle kwenethiwekhi ngenkathi ngesikhathi esifanayo yehlisa izindleko zakho. Ama-network packet broker ngezinye izikhathi angabizwa ngokuthi ama-data access switches, ama-monitoring switches, ama-matrix switches, noma ama-tool aggregators.
Ezweni lanamuhla eliqhutshwa yidijithali, izikhungo zedatha zidlala indima ebalulekile ekuphatheni nasekugcineni ulwazi oluningi. Njengoba izidingo ezikhulayo zokusebenza kwenethiwekhi okuthembekile nokusebenza kahle, kubalulekile ukuthi izikhungo zedatha zibe nama-packet broker enethiwekhi (ama-NPB) endaweni. Ngisho noma isikhungo sedatha singakasebenzisi i-ethernet ye-100G okwamanje, i-NPB isengaba usizo kakhulu.
Ngaphakathi kwesikhungo sedatha, kusetshenziswa amathuluzi ahlukahlukene ukuqapha ukusebenza kwenethiwekhi, ukuhlinzeka ngokubonakala, nokunciphisa izinsongo kanye nabalingisi ababi. Lawa mathuluzi athembele kakhulu ekugelezeni okuqhubekayo kwamaphakethe ukuze asebenze kahle. Kodwa-ke, ngaphandle kwe-NPB, ukuphatha nokusabalalisa lawa maphakethe kungaba umsebenzi onzima.
I-NPB isebenza njengesikhungo esiyinhloko esiqoqa, sihlele, futhi sisabalalise ithrafikhi yenethiwekhi kumathuluzi okuqapha noma okuphepha adingekayo. Isebenza njengephoyisa lethrafikhi, iqinisekisa ukuthi amaphakethe afanele afinyelela amathuluzi afanele, ithuthukise ukusebenza kwawo futhi ivumele ukuhlaziywa okungcono kanye nokuxazulula izinkinga.
Esinye sezizathu eziyinhloko zokuthi kungani isikhungo sedatha sidinga i-NPB yikhono lokusingatha isivinini senethiwekhi esandayo. Njengoba ubuchwepheshe buthuthuka, isivinini senethiwekhi siyaqhubeka nokwenyuka. Amathuluzi okuqapha inethiwekhi avamile angase angahlonyiselwe ukuphatha inani lamaphakethe akhiqizwa amanethiwekhi anesivinini esikhulu njenge-100G ethernet. I-NPB isebenza njengomlawuli wethrafikhi, yehlisa isivinini senethiwekhi iye esivivinyweni esilawulekayo samathuluzi, iqinisekisa ukuqapha nokuhlaziya okunembile.
Ngaphezu kwalokho, i-NPB inikeza ukusabalala kanye nokuguquguquka ukuze kuhlangatshezwane nezidingo ezikhula njalo zesikhungo sedatha. Njengoba ithrafikhi yenethiwekhi ikhula, amathuluzi engeziwe angadinga ukungezwa engqalasizinda yokuqapha. I-NPB ivumela ukuhlanganiswa okulula kwamathuluzi amasha ngaphandle kokuphazamisa ukwakheka kwenethiwekhi okukhona. Iqinisekisa ukuthi wonke amathuluzi okuqapha kanye nokuphepha anokufinyelela kumaphakethe adingekayo, kungakhathaliseki usayizi kanye nobunzima benethiwekhi.
Izikhungo zedatha nazo zibhekene nenselele yokuphatha ithrafikhi kusuka ezindaweni ezahlukene ngaphakathi kwenethiwekhi. Njengoba ukwakheka okusatshalaliswe kuba yinto evamile, kubalulekile ukuba nokubonakala okuphakathi kanye nokulawula ithrafikhi yenethiwekhi. I-NPB isebenza njengendawo ephakathi yokuhlanganisa lapho yonke ithrafikhi yenethiwekhi ihlangana khona, inikeza umbono ophelele wenethiwekhi yonke. Lokhu kubonakala okuphakathi kuvumela ukuqapha okungcono, ukuxazulula izinkinga, kanye nokuhlaziywa kokuphepha.
Ngaphezu kwalokho, i-NPB ithuthukisa ukuphepha ngaphakathi kwesikhungo sedatha ngokunikeza amakhono okuhlukanisa inethiwekhi. Njengoba kunosongo oluqhubekayo lokuhlaselwa kwe-cyber kanye nabahlaseli abanonya, kubalulekile ukuhlukanisa nokuhlola ithrafikhi yenethiwekhi ukuze kutholakale futhi kuncishiswe noma yiziphi izinsongo ezingaba khona. I-NPB ingahlunga futhi ihlukanise ithrafikhi yenethiwekhi ngokusekelwe ezindinganisweni ezahlukene, njengekheli le-IP lomthombo noma uhlobo lwephrothokholi, iqinisekise ukuthi ithrafikhi esolisayo ithunyelwa ukuze ihlaziywe kabanzi futhi ivimbele noma yikuphi ukwephulwa kokuphepha okungenzeka.
Ngaphezu kwalokho, i-NPB nayo idlala indima ebalulekile ekubonakaleni kwenethiwekhi kanye nokuqapha ukusebenza. Inikeza ukuqonda okuningiliziwe ngethrafikhi yenethiwekhi, okuvumela abaphathi bezikhungo zedatha ukuthi babone izithiyo, izinkinga zokubambezeleka, noma ezinye izinkinga zokusebenza. Ngokuba nesithombe esicacile sokusebenza kwenethiwekhi, abaphathi bangenza izinqumo ezinolwazi zokuthuthukisa inethiwekhi nokuthuthukisa ukusebenza kahle kwayo yonke.
Ngaphezu kwalezi zinzuzo, i-NPB iphinde ibe lula ingqalasizinda yokuqapha inethiwekhi ngokunciphisa inani lamathuluzi okuqapha adingekayo. Esikhundleni sokusebenzisa amathuluzi amaningi azimele emsebenzini ngamunye wokuqapha, i-NPB ihlanganisa ukusebenza kube yipulatifomu eyodwa. Lokhu kuhlanganiswa akugcini nje ngokusindisa isikhala kodwa futhi kunciphisa nezindleko ezihlobene nokuthenga, ukuphatha, nokugcina amathuluzi amaningi.
Ngaphezu kwalokho, i-NPB ithuthukisa ukusebenza kahle kwezinqubo zokuqapha nokuxazulula izinkinga. Njengoba benekhono lokuhlunga nokuqondisa amaphakethe athile kumathuluzi adingekayo, abaphathi bezikhungo zedatha bangabona futhi baxazulule izinkinga zenethiwekhi ngokushesha. Le ndlela elula yonga isikhathi nezinsiza, iqinisekisa isikhathi esincane sokungasebenzi futhi ikhulise ukutholakala kwenethiwekhi.
Ekuphetheni, i-NPB iyisici esibalulekile sanoma iyiphi ingqalasizinda yesikhungo sedatha. Inikeza amakhono adingekayo okuphatha, ukusabalalisa, nokwenza ngcono ithrafikhi yenethiwekhi, ukuqinisekisa ukuqapha okusebenzayo, ukuphepha, kanye nokuhlaziywa kokusebenza. Njengoba izidingo ezikhulayo zamanethiwekhi asheshayo kanye nezakhiwo ezisatshalaliswayo zikhula, i-NPB inikeza ukusabalala, ukuguquguquka, kanye nokuhlanganiswa okudingekayo ukuze kuhlangatshezwane nalezi zinselele ngqo. Ngokutshala imali ku-NPB, abaqhubi bezikhungo zedatha bangaqinisekisa ukusebenza okubushelelezi kanye nokuqina kwengqalasizinda yabo yenethiwekhi ngenkathi benciphisa ngempumelelo izinsongo ezingaba khona futhi bevikela idatha ebalulekile.
Isikhathi sokuthunyelwe: Septhemba 13-2023
