Dab tsi yog router?
Routers feem ntau yog siv nyob rau hauv cheeb tsam hauv cheeb tsam network thiab thaj chaw dav dav.Nws tuaj yeem txuas ntau lub tes hauj lwm lossis cov ntu hauv lub network rau "txhais" cov ntaub ntawv ntawm cov tes hauj lwm sib txawv lossis cov ntu sib txuas, kom lawv tuaj yeem "nyeem" ib leeg cov ntaub ntawv los tsim kom muaj qhov loj dua hauv Is Taws Nem.Nyob rau tib lub sijhawm, nws muaj cov haujlwm xws li kev tswj xyuas network, kev ua cov ntaub ntawv, thiab kev sib txuas hauv network.
Dab tsi yog qhov hloov
Cias muab, qhov hloov, tseem hu ua switching hub.Qhov txawv ntawm lub router yog tias nws tuaj yeem txuas mus rau tib hom network, sib txuas nrog ntau hom kev sib txuas (xws li Ethernet thiab Fast Ethernet), thiab ua rau cov khoos phis tawj no tsim lub network.
Nws tuaj yeem xa hluav taws xob xaim hluav taws xob thiab muab cov teeb liab hluav taws xob tshwj xeeb rau ob lub network nodes txuas nrog nws, yog li zam kev sib kis thiab chaw nres nkoj tsis sib haum thiab txhim kho kev siv dav dav.
Cov keyboards feem ntau suav nrog Ethernet keyboards, cov chaw hauv cheeb tsam network keyboards thiab WAN keyboards, nrog rau cov keyboards optical fiber ntau thiab xov tooj lub suab hloov.
Qhov txawv ntawm router thiab hloov:
1. Los ntawm kev ua haujlwm ntawm qhov pom, lub router muaj lub luag haujlwm hu xovtooj, uas tuaj yeem tso IP.Cov khoos phis tawj txuas nrog Is Taws Nem tuaj yeem sib koom tus account broadband ntawm tib lub router, thiab cov khoos phis tawj nyob hauv tib lub network hauv zos.Tib lub sijhawm, nws tuaj yeem muab kev pabcuam firewall.Qhov hloov pauv tsis muaj cov kev pabcuam thiab kev ua haujlwm zoo li no, tab sis nws tuaj yeem xa cov ntaub ntawv sai sai mus rau qhov chaw ntawm qhov chaw los ntawm kev hloov pauv hauv matrix, yog li txuag cov peev txheej network thiab txhim kho kev ua haujlwm.
2. Los ntawm qhov kev xav ntawm cov khoom ntawm cov ntaub ntawv xa mus, lub router txiav txim siab tias qhov chaw nyob rau cov ntaub ntawv xa mus siv tus lej ID ntawm lub network sib txawv, thiab qhov hloov pauv txiav txim qhov chaw nyob rau xa cov ntaub ntawv los ntawm kev siv MAC chaw nyob lossis chaw nyob ntawm lub cev.
3. Los ntawm theem ua haujlwm, lub router ua haujlwm raws li qhov chaw nyob IP thiab ua haujlwm ntawm txheej txheej txheej txheem ntawm OSI, uas tuaj yeem tswj tau TCP / IP raws tu qauv;qhov hloov ua haujlwm ntawm cov txheej txheem relay raws li MAC chaw nyob.
4. Los ntawm qhov kev xav ntawm segmentation, lub router tuaj yeem segment qhov kev tshaj tawm xov xwm, thiab qhov hloov pauv tsuas tuaj yeem segment qhov tsis sib haum xeeb.
5. Los ntawm qhov kev xav ntawm daim ntawv thov hauv cheeb tsam, routers feem ntau yog siv los txuas LANs thiab lwm cov tes hauj lwm, thiab cov keyboards feem ntau yog siv rau cov ntaub ntawv xa mus hauv LANs.
6. Los ntawm lub ntsiab lus ntawm kev pom, muaj peb lub router interfaces: AUI chaw nres nkoj, RJ-45 chaw nres nkoj, SC chaw nres nkoj, muaj ntau qhov kev hloov pauv, xws li Console chaw nres nkoj, MGMT interface, RJ45 chaw nres nkoj, fiber ntau optical interface, auc interface, vty interface thiab vlanif Interface, thiab lwm yam.
Post lub sij hawm: Oct-30-2021