show buffers ” Displays the routers buffer pool statistics.
show memory ” Displays the router's memory allocations .
show processes ” Displays information about active processes. The cpu syntax displays information on CPU processes in one- and five-minute increments (same as used on memory syntax).
show running-config ” Displays the current configuration applied to the router's IOS.
show startup-config ” Displays the currently saved configuration, which is stored to NVRAM (also known as the flash ). This may not be the configuration currently applied to the router.
show tech-support ” Displays a detailed list of the results of many of the troubleshooting commands. The Cisco TAC may require this output should you need TAC assistance.
write core ” This command creates an image of the current system which may be required by the Cisco TAC.
show version ” Displays the current Cisco IOS and hardware versions on the router.
