Video: Lub cim xeeb twg khaws cia router qhov teeb tsa?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Muaj tsawg kawg yog ob qhov tseem ceeb ntawm cov tsis-volatile khaws cia hauv Cisco router . Cov router configuration cov ntaub ntawv khaws cia rau hauv ib lub cuab yeej hu ua Non-Volatile RAM (NVRAM), thiab cov duab IOS khaws cia rau hauv ib lub cuab yeej hu ua lub flash (tus lej qis).
Tib neeg kuj nug, dab tsi yog 4 hom kev nco pom hauv router?
A router muaj kev nkag mus rau plaub hom kev nco : RAM , ROM, NVRAM, thiab Flash. RAM yog siv los khaws ntau daim ntawv thov thiab cov txheej txheem suav nrog: Cisco IOS - Lub IOS tau theej rau hauv RAM thaum lub sij hawm bootup.
Ib tug kuj yuav nug, dab tsi yog khaws cia rau hauv lub routers Nvram nco? RAM yog luv rau Random-Access Nco . RAM ntawm Cisco router khaws cov ntaub ntawv ua haujlwm xws li txoj kev tables thiab cov ntaub ntawv configuration khiav. NVRAM yog non-volatile RAM . Los ntawm "non-volatile", peb txhais tau tias cov ntsiab lus ntawm NVRAM tsis ploj thaum lub router yog powered down los yog reloaded.
Ib yam li ntawd, nws tau nug, hom kev nco hauv Cisco router khaws cov ntaub ntawv pib config?
ROM chips rau Cisco routers yog tshem tau thiab tuaj yeem hloov kho lossis hloov. NVRAM (nonvolatile RAM) - Khaws cov ntaub ntawv pib teeb tsa rau cov router . NVRAM tuaj yeem raug tshem tawm, thiab koj tuaj yeem luam qhov kev khiav haujlwm kev teeb tsa ntawm router rau NVRAM.
Hom kev nco twg yog qhov tsim nyog rau lub router rau khau raj?
Feem ntau Cisco routers (thiab keyboards) muaj plaub hom kev nco : Nyeem-Tsuas Nco (ROM): ROM khaws cov router cov bootstrap startup program, operating system software, thiab power-on diagnostic test programs (POST). Flash Nco : Feem ntau hu ua "flash", cov duab IOS nyob ntawm no.
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