![]() Flash storage media is significantly more expensive and slower than disk storage, but the amount of storage needed to run a router is relatively small compared to the amount needed to run a general-purpose computer. This includes managing your router’s filesystems, upgrading the operating system, doing backups, and restoring the system configuration.Ĭisco routers use flash memory, rather than disks, for storing information. So we’ll start with a discussion of the basic system administration functions that a router engineer must perform. It has its own operating system, which is called the Internetwork Operating System (IOS), as well as files and filesystems. You can think of a Cisco router as a special-purpose computer.
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