Hey!
The following solutions apply only to the stack of CE8800, CE7800, CE6800, and CE5800 series switches instead of the stack of CE12800, CE16800, and CE12800E series switches.
Perform the following operations to meet this requirement:
1. Create a new logical stack port and add 40GE ports in the created logical stack port. Connect the 40GE ports using cables to set up a stack in a ring topology.
2. Remove the cables of the 10GE ports and delete the stack configuration of these ports.
If the stack has been set up in a ring topology, remove the 10GE ports from the logical stack port, remove their cables, add the 40GE ports in the logical stack port and then connect the 40GE ports using cables.