3Com Switch 4500 PWR 50-Port Work Light User Manual


 
Solving Stack Formation Problems 69
Solving Stack
Formation
Problems
If you are having problems with correctly forming a stack, first ensure that
Spanning Tree is enabled. If it is enabled, do the following:
1 Power off all units in the stack.
2 Check all the cable connections in the stack.
3 Check the ports have been enabled as stack ports.
4 Power on all units in the stack.