Flash: Hard drive, store iOS and configuration commands
ROM: read only memory
1ROM function: boot system, password recovery, system recovery or upgrade
Composition: bootstrap program: bootloader, used to boot the operating system
Switch program: used for password recovery and system upgrade
POST program: used to implement power-on self-test
The hardware structure of the Cisco switch and the startup process of the switch are introduced here. If you have other needs, please consult our online customer service(click here).
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