Qhov twg lub router IOS khaws cia los ntawm lub neej ntawd?
Qhov twg lub router IOS khaws cia los ntawm lub neej ntawd?

Video: Qhov twg lub router IOS khaws cia los ntawm lub neej ntawd?

Video: Qhov twg lub router IOS khaws cia los ntawm lub neej ntawd?
Video: Tsis Muaj Peev Xwm Yuav Ua Li Cas 2024, Kaum ib hlis
Anonim

Cov IOS khaws cia hauv qhov chaw nco hu ua flash. Lub flash tso cai rau lub IOS yuav tau upgraded los yog khw muag khoom ntau IOS cov ntaub ntawv. Hauv ntau router architectures, ua IOS yog theej rau hauv thiab khiav los ntawm RAM. Ib daim qauv ntawm cov ntaub ntawv teeb tsa yog khaws cia hauv NVRAM los siv thaum pib.

Kuj nug, qhov chaw pib teeb tsa khaws cia ntawm Cisco router nyob qhov twg?

Kev khiav kev teeb tsa yog khaws cia hauv RAM; tus startup configuration yog khaws cia hauv NVRAM. Txhawm rau tso saib cov haujlwm tam sim no kev teeb tsa , nkag mus rau cov yeeb yam khiav- config lus txib.

Dab tsi yog tus nqi pib pom nyob rau hauv configuration register ntawm router? Los ntawm ua ntej , cov configuration register ntawm a router yog teeb rau a tus nqi ua 0o2102. Qhov "0x" sawv cev rau qhov tus nqi Raws li hexadecimal, thaum "2102" feem yog tus sawv cev hexadecimal ntawm 16-ntsis tus nqi.

Tsis tas li ntawd, qhov twg yog qhov pib teeb tsa cov ntaub ntawv khaws cia thiab thauj khoom los ntawm lub neej ntawd ntawm Cisco IOS router?

Ntawm txhua lub platform tshwj tsis yog Class A Flash ntaub ntawv system platforms, cov pib pib - config cov ntaub ntawv feem ntau yog khaws cia hauv NVRAM. Hauv Class A Flash ntaub ntawv system platforms, CONFIG_FILE ib puag ncig hloov pauv cov ntsiab lus mus rau pib pib - config cov ntaub ntawv . CONFIG_FILE hloov pauv ua li ntawd rau NVRAM.

Lub neej ntawd IOS duab nyob qhov twg thaum lub sijhawm khau raj ntawm lub router lossis hloov?

Feem ntau, cov IOS yog khaws cia hauv lub cim xeeb flash, tab sis nws tuaj yeem ua tau khaws cia hauv lwm qhov chaw, xws li TFTP server. Ntawm theem peb, lub router loads cov IOS duab hauv RAM rau kev ua haujlwm los ntawm CPU. Yog tias IOS duab ua tsis tau nyob , qhov tsawg kawg nkaus version ntawm lub IOS yog loaded los ntawm ROM rau hauv RAM.

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