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Save the config (copy run start)! Seriously, that is easy to forget when you're in a hurry. Other than that, if you're worried about power surges, or whatever, just turn off the power supplies in succession, then turn off your power source/UPS. Rever...
I did this on a 6509/sup2/msfc2s to provide redundancy on the uplinks. All four interfaces were in the same VLAN (switchpport mode), but the VLAN itself was a layer 3. That way, my default gateway was always the same, but STP took over if one of the ...
If you want to send the logs to an external server, versus overwriting the buffer memory, you can add the "logging " command to your router. Then, install a syslog program, such as Kiwi Syslog Daemon (freebie!) on Windows, Linux, etc and it will list...