Corey,
Luckily I have a couple of 3750's that were spares I could test with. So far I've only had time to move over one host and test, but so far I haven't had any issues nor seen the MAC flaps. Here's what I did:
- On the switches, I configured a port-channel group (mode ON) for each of my ESXi hosts. EX: In my case having 8 hosts total, I created 8 Port-channels.
- Each switchport that host 1's VMNic's plugged into, and so on...
- Finally, for the vSwitch that my VM traffic is used for, I set the Load Balancing to "route based on IP has" under the "NIC Teaming" tab, do the same for any contained port groups that don't inherit this automatically.