I would look at the Stack ID LED and see what number it is on. It may still be on a 2-8 number, and needs to be set to 1 if it is going to be the master of a new stack. Each stack device has a unique identifying unit ID that defines the unit’s position and function in the stack. If the device is a stand-alone unit, the Stack LED is not illuminated. The default setting is stand-alone. The unit ID is manually configured by using the Stack ID button. The unit ID is indicated by the Stack ID LEDs. Unit ID 1 and 2 are reserved for the Master and Backup Master unit, and unit ID 3 to 8 are for Member units. Unit ID Selection Process The unit ID selection process is as follows: 1 Ensure that the stand-alone/Master device Console port is connected to a VT100 terminal device or VT100 terminal emulator via the RS-232 crossover cable. 2 Locate an AC power receptacle. 3 Deactivate the AC power receptacle. 4 Connect the device to the AC receptacle. 5 Activate the AC power receptacle. When powering up, the configured LED number (corresponding to the previously saved unit ID) begins to flash. The LED flashes for 15 seconds. During this period, select a specific Stack ID by pressing the Stack ID button until the appropriate Stack ID LED is illuminated. 6 Selection Process — To advance the stacking ID LED number, continue pressing the Stack ID button. When LED 8 is flashing, pressing the Stack ID button results in the device being configured as a stand-alone. Pressing the Stack ID button again advances the Stack ID to 1. Unit 1 and Unit 2 are master-enabled units. See "Stacking Overview" on page 12 master-election process. 7 End selection process — The unit ID selection process is completed when the 15-second flashing period has transpired. The Stack ID button becomes unresponsive and the unit ID is set to the LED ID flashing at the end of the period. NOTE: These steps should be performed one unit at a time until all stack members are powered up and their Stack IDs are selected. Performing the steps one unit at a time will allow for sufficient time to select the Stack ID for each unit. However, the entire stack should be cabled as per the "Stacking Cable Diagram" on page 45 before powering up the devices.
Hello,I had this old stack of 3 x 3548 switches and I wanted to take one of the slave units out to make it into a standalone switch.What would be the quickest way to do?Must I go through the whole reset process?Thanks.
Newbie changing a slave 3548 unit to a standalone switch