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Routers looking in RAM for an IOS? Does it?
control
Member Posts: 309
in CCNA & CCENT
Just reading through some of the free material at BryantAdvntage and came across this:
RAM: Random-Access Memory. Stores operational information such as routing tables and the running configuration file. RAM contents are lost when the router is powered down or reloaded. By default, routers look here first for an Internetwork Operating System (IOS) file during boot.
I'm querying the bit on bold. is this correct? I don't think IOS would check Dynamic RAM on boot up would it? I would have thought Flash Memory.
RAM: Random-Access Memory. Stores operational information such as routing tables and the running configuration file. RAM contents are lost when the router is powered down or reloaded. By default, routers look here first for an Internetwork Operating System (IOS) file during boot.
I'm querying the bit on bold. is this correct? I don't think IOS would check Dynamic RAM on boot up would it? I would have thought Flash Memory.
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veritas_libertas
Member Posts: 5,746 ■■■■■■■■■■
It looks in FLASH for the IOS, and then NVRAM for the Startup-Config file. RAM is used for storing packet buffers, routing tables, etc.