• daim ntawv tshaj tawm taub hau

Yuav ua li cas kom paub qhov txawv ntawm cov switches thiab routers sai sai

Lub router yog dab tsi?

Cov routers feem ntau yog siv rau hauv cov tes hauj lwm hauv zos thiab cov tes hauj lwm dav dav. Nws tuaj yeem txuas ntau lub tes hauj lwm lossis cov ntu network kom "txhais" cov ntaub ntawv ntawm cov tes hauj lwm sib txawv lossis cov ntu network, yog li lawv tuaj yeem "nyeem" cov ntaub ntawv ntawm ib leeg los tsim lub internet loj dua. Tib lub sijhawm, nws muaj cov haujlwm xws li kev tswj hwm network, kev ua cov ntaub ntawv, thiab kev sib txuas network.

Lub qhov hloov pauv yog dab tsi

Hais yooj yim xwb, lub switch, tseem hu ua lub switching hub. Qhov txawv ntawm lub router yog tias nws tuaj yeem txuas rau tib hom network, sib txuas nrog ntau hom network (xws li Ethernet thiab Fast Ethernet), thiab ua rau cov khoos phis tawj no tsim ua ib lub network.

Yuav ua li cas kom paub qhov txawv ntawm cov switches thiab routers sai sai

Nws tuaj yeem xa cov teeb liab 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 kev tsis sib haum xeeb ntawm chaw nres nkoj thiab txhim kho kev siv broadband zoo.

Cov keyboards uas siv ntau suav nrog Ethernet keyboards, local area network switches thiab WAN switches, nrog rau optical fiber switches thiab telephone voice switches.

Qhov sib txawv ntawm router thiab switch:

1. Los ntawm qhov pom ntawm kev ua haujlwm, lub router muaj lub luag haujlwm hu xov tooj virtual, uas tuaj yeem muab IP tau. 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 cov kev pabcuam firewall. Lub switch tsis muaj cov kev pabcuam thiab cov haujlwm zoo li no, tab sis nws tuaj yeem xa cov ntaub ntawv sai sai mus rau qhov chaw mus los ntawm lub matrix switching sab hauv, yog li txuag cov peev txheej network thiab txhim kho kev ua haujlwm zoo.

2. Los ntawm qhov kev xav ntawm lub hom phiaj ntawm kev xa cov ntaub ntawv, lub router txiav txim siab tias qhov chaw nyob rau kev xa cov ntaub ntawv siv tus lej ID ntawm lub network sib txawv, thiab lub switch txiav txim siab qhov chaw nyob rau kev xa cov ntaub ntawv los ntawm kev siv qhov chaw nyob MAC lossis qhov chaw nyob lub cev.

3. Los ntawm theem ua haujlwm, lub router ua haujlwm raws li IP addressing thiab ua haujlwm ntawm lub network txheej ntawm OSI qauv, uas tuaj yeem ua haujlwm TCP / IP protocol; lub hloov ua haujlwm ntawm lub relay txheej raws li MAC addressing.

4. Los ntawm qhov kev xam pom ntawm kev faib ua pawg, lub router tuaj yeem faib cov chaw tshaj tawm, thiab lub qhov hloov pauv tsuas tuaj yeem faib cov chaw tsis sib haum xeeb.

5. Los ntawm qhov kev xav ntawm thaj chaw thov, cov routers feem ntau yog siv los txuas LANs thiab cov tes hauj lwm sab nraud, thiab cov keyboards feem ntau yog siv rau kev xa cov ntaub ntawv hauv LANs.

6. Los ntawm qhov pom ntawm qhov interface, muaj peb lub router interfaces: AUI port, RJ-45 port, SC port, muaj ntau lub switch interfaces, xws li Console port, MGMT interface, RJ45 port, optical fiber interface, auc interface, vty interface thiab vlanif Interface, thiab lwm yam.


Lub sijhawm tshaj tawm: Lub Kaum Hli-30-2021