Dell Networking N4032 Configuration Manual page 30

Validation
2.3.2.2
After the entire stack is created, validate the configuration by selecting System > Stack Management >
Stack Summary from the main navigation menu:
The example above shows a new stack member (Unit 3) was added.
If a switch (SW) number is configured prior to adding it to the stack and there are no other devices using
that number, then the switch continues to use the same number. Otherwise, the switch sets its number to
the lowest unassigned number upon joining the stack.
Note: Once added to a stack, a switch's out-of-band IP address and console port are no longer
accessible to the user. Use the IP address and console port of the Master unit for management access,
since the stack now acts as a single large switch.
Repeat the above steps to add more new members to the stack.
30 Stacking Dell Networking Switches: N4032, N4032F, N4064, N4064F