Umuyoboro wa Packek Bitandukanye na switch, npb ntabwo ihindura traffic itemba muburyo ubwo aribwo bwose keretse byateganijwe neza. NPB irashobora kwakira traffic kumurongo umwe cyangwa myinshi, kora imirimo imwe yateganijwe kuri iyo modoka, hanyuma ikayisohoka kumurongo umwe cyangwa myinshi.
Abo bakunze kwita nkayo yose-kuri-bose, benshi-kuri-bose, na posita zose. Imikorere ishobora gukorwa hagati yoroshye, nko kohereza cyangwa guta imodoka, kugirango ugere kuri complex, nko gushungura amakuru hejuru ya enter 5 kugirango umenye inama runaka. Imigaragarire kuri NPB irashobora kuba umuringa wumuringa, ariko mubisanzwe sfp / sfp + na qsfp frames, yemerera abakoresha gukoresha umuvuduko wibitangazamakuru bitandukanye nimitako. Ikiranga cya NPB cyubatswe ku ihame ryo kugabanya imikorere myiza y'ibikoresho by'urusobe, cyane cyane gukurikirana, gusesengura, n'ibikoresho by'umutekano.
Ni ibihe bikorwa umuyoboro wa paket utanga?
Ubushobozi bwa NPB ninshi kandi bushobora gutandukana bitewe nikirango nicyitegererezo cyigikoresho, nubwo umukozi uwo ari we wese ukwiye umunyu we uzashaka kugira umukiranutsi. Benshi muri NPB (Imikorere isanzwe ya NPB) kuri Osi Lapers 2 kugeza 4.
Muri rusange, urashobora kubona ibintu bikurikira kuri NPB ya L2-4: traffic (cyangwa ibice byihariye) opelding, guhagarika imihanda, gutangira cyangwa kwigana kuri trafle traffic. Nkuko byari byitezwe, L2-4 ya NPB ishobora kuyungurura Vlan, ibirango bya MPS, Aderesi ya Mac (Inkomoko), hamwe na TCP. Ibi ntabwo ari ikintu kigomba gukoreshwa, ahubwo gitanga igitekerezo cyukuntu NPB ikorera mumirongo 2 kugeza 4 irashobora gutandukana no kumenya ibice. Ikintu cyingenzi gisabwa kuba abakiriya bagomba gushakisha muri NPB nintambwe idahwitse.
Urusobe rwa paket broker dukeneye gushobora kubasha guhura na traffic yuzuye ya buri cyambu ku gikoresho. Muri sisitemu ya Chassis, guhuza n'inyuma bigomba kandi gushobora no kuzuza umutwaro wuzuye wa module ihujwe. Niba NPB yataye paki, ibyo bikoresho ntibizasobanukirwa byuzuye byurusobe.
Nubwo umubare munini wa NPB ushingiye kuri ASIC cyangwa FPGA, bitewe nukuri kubikorwa byo gutunganya paki, uzabona uburyo bwo gutunganya cyangwa cpus byemewe (binyuze kuri module). Guhuza ™ abahuza b'ipaki (NPB) bashingiye kubisubizo bifatika. Ibi mubisanzwe ni ikintu gitanga gutunganya byoroshye bityo ntigishobora gukorwa gusa mubikoresho. Harimo kwiyegurira paki, igihe, SSL / TLS Gushakisha, Ijambo ryibanze gushakisha, hamwe nuburyo busanzwe bwo gushakisha. Ni ngombwa kumenya ko imikorere yayo iterwa no gukora CPU. .
Niba CPU biranga ibintu byashoboka, bihinduka ibintu bigabanya mubikorwa rusange bya NPB. AGATION YA CPU NA PPIPS ZIKURIKIRA, nka CAVIUM XPLIES, THEVEFOOT TOFION N'INZOMIUM Teralynx, Ibice bikora birashobora gufata urufatiro rwagutse Mu bintu byateye imbere byavuzwe haruguru, ijambo ryibanze kandi ushakisha invugo ni ingero nziza zo kunyura mu gisekuru gikurikira. Ubushobozi bwo gushakisha umushahara w'ipaki butanga amahirwe yo gushungura traffic ku isomo no gukoresha neza, kandi bitanga igenzura ryiza kuri rezo ihinduka kuruta L2-4.
Nigute Umuyoboro wa Packet Croker uhuye nibikorwa remezo?
NPB irashobora gushyirwaho mubikorwa remezo byurusobe muburyo bubiri butandukanye:
1- umurongo
2- Hanze-y'itsinda.
Buri nzira ifite ibyiza nibibi kandi ituma imashini yo mumodoka muburyo ubundi buryo budashobora. Umuyoboro wa Inline Packet Broker afite urujya n'uruza rw'ibinyabiziga rugenda runyura igikoresho mu nzira yerekeza aho ujya. Ibi bitanga amahirwe yo kuyobora ibyambu mugihe nyacyo. Kurugero, mugihe wongeyeho, uhindure, cyangwa usiba Vlan tags cyangwa guhindura aho ip adresses, traffic yandukuwe kumurongo wa kabiri. Nkuburyo bwumurongo, NPB irashobora kandi gutanga imbaraga kubindi bikoresho byo kumurongo, nkindangamuntu, ips, cyangwa firewall. NPB irashobora gukurikirana imiterere yibikoresho nkibi hamwe na dinamike yongeye gusubira inyuma kugirango ushushe mugihe habaye gutsindwa.
Itanga guhinduka cyane muburyo traffic itunganywa kandi yigana kubikoresho byinshi byo gukurikirana no kuba bitabangamiye urusobe nyarwo. Iratanga kandi urusobe rutigeze rubaho kandi rubyemeza ko ibikoresho byose byakira kopi yimodoka ikenewe kugirango bakore neza inshingano zabo. Ntabwo ari ugukurikirana gusa, umutekano, hamwe nibikoresho byo gusesengura bibona traffic bakeneye, ariko kandi ko umuyoboro wawe ufite umutekano. Iremeza kandi ko igikoresho kitarya umutungo kumuhanda udashaka. Ahari umusenguzi wawe umusenguzi udakeneye kwandika traffic kuko bisaba umwanya wa disiki ifite mugihe cyizuba. Ibi bintu byuzura byoroshye mu isesengura mugihe uzigama izindi modoka zose kubikoresho. Birashoboka ko ufite subnet yose ushaka gukomeza kwihisha murindi sisitemu; Na none, ibi biroroshye gukurwaho byoroshye ku cyambu cyatoranijwe. Mubyukuri, NPB imwe irashobora gutunganya imiyoboro yumuhanda umurongo mugihe cyo gutunganya izindi modoka ziri hanze yimodoka.
Igihe cya nyuma: Werurwe-09-2022
