IOS Version and Other Reload Facts
Version
To finish this first chapter about how Cisco IOS works, with the IOS CLI, this last topic looks at the switch show version command.
When a switch loads the IOS, it must do many tasks. The IOS software itself must be loaded into RAM. The IOS must become aware of the hardware available, for example, all the different LAN interfaces on the switch. After the software is loaded, the IOS keeps track of some statistics related to the current operation of the switch, like the amount of time since the IOS was last loaded and the reason why the IOS was most recently loaded.
The show version command lists these ...
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