High CPU, even 100%, is not necessarily a problem per se; it is only a problem if the most important IOS tasks are being starved of CPU cycles such that the device ceases to function in its intended role. Lower priority IOS processes can consume all ...

What you are describing is basically the use-case for a Gratuitous ARP Reply (vs Gratuitous ARP Request): a node announcing its existence so that other nodes in the same broadcast domain can pre-populate their ARP caches in advance of actually need...

There is typically enough power to energize the electronics of any transceiver. The NOS then reads the EEPROM data programmed into the transceiver to determine, among other things, the power level required to energize the transmitter; after which, th...