Firmware 7.3.1.7

So far, 12 days without a random reload by the switch after implementing the ACL for the management IP. I did have to modify the ACL to allow the switch to communicate with the NTP server, but, other than that, the ACL I posted above seems to have done the trick so far. Without NTP, the switch was losing minutes (system clock running slower than real time) at the rate of 1 or 2 minutes per day.

I'm going to let it sit this way for another couple weeks before adding some real traffic to the switch. If it can handle some real traffic for a month without trouble, I'll add in layer 3 VLANs and dynamic routing. If it can handle that for a month without trouble, it gets my stamp of approval and I'll roll it out to our other switches.