D-Link DES-3326SR User Manual page 182

DES-3326SR Layer 3 Fast Ethernet Switch User's Guide
With the management station's console connected to the serial
port of the switch with the lowest MAC address, enter the
following command at the prompt:
config stacking mode slave
This will configure the switch with MAC address 00-00-00-22-
22-00 to always have a Unit number greater than 1 (as a
slave).
Now you will have to move the management station's console
connection (via the serial port) to the switch with MAC address
00-11-33-44-55-60, and enter the following command:
config stacking mode master
This will configure the switch with MAC address 00-11-33-44-
55-60 to always have a Unit number of 1 (as the master).
You can then use the show stacking command to verify the
stacking configuration, as shown below:
Figure 6 - 17. Config Stacking Command
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