So you call vendor tech support...... You spend all this time and money engineering a solution, buying equipment from a vendor that is not exactly the "loss leader" of the industry and you get a poop response like the one below.
Cisco bug CSCsc54052 -
A Cisco 3750 Stack with a single faulty stacking port may cause unexpected conditions.
1) other non-related stacking ports may flap in addition to the faulty stacking port:
%STACKMGR-6-STACK_LINK_CHANGE: Stack Port 1 Switch 5 has changed to state DOWN
%STACKMGR-6-STACK_LINK_CHANGE: Stack Port 1 Switch 5 has changed to state UP
2) switches not associatated with the faulty stack port may hang
Remove and replace the switch that has a faulty stacking port.
Please let me know if you have futher questions
Aynone else having this kind of fun and are there any fixes other than pitching the several mil$ network equipment and starting again? Please remeber, I did not design this, I just fix it."