White Papers

Verify a Stack Configuration
The following lists the status of a stacked switch (master, standby master, or member unit) according to the color of the
System Status LED on its front panel.
Color Meaning
Green The switch is online and operating as a master, standby, or member unit in a stack or as a standalone unit.
Blinking Green The switch is booting up.
Amber A failure condition in switch operation has occurred.
Using Show Commands
To display information on the stack configuration, use the show commands on the master switch.
Command
Output
show system
[brief]
Displays information on a stack, including stacking roles (master, standby, and member units), stack MAC
address, reload type, and modules used in each unit.
show system
stack-unit
unit-number
stack-group
configured
Displays the stack groups allocated on a stacked switch. The valid stack-unit numbers are from 0 to 11.
show system
stack-unit
unit-number
stack-group
Displays the port numbers that correspond to the stack groups on a switch. The valid stack-unit numbers
are from 0 to 11.
show system
stack-ports
[status |
topology]
Displays the type of stack topology (ring or daisy chain) with a list of all stacked ports, port status, link
speed, and peer stack-unit connection.
The following example shows the show system stack-unit stack-group configured command.
Dell#show system stack-unit 0 stack-group configured
Configured stack groups in stack-unit 0
------------------------------------------
1
2
Dell#show system stack-unit 1 stack-group configured
Configured stack groups in stack-unit 1
------------------------------------------
1
2
The following example shows the show system stack-unit stack-group command.
Dell#show system stack-unit 0 stack-group
Stack group Ports
------------------------
0 0/0,1,2,3
1 0/4,5,6,7
2 0/8,9,10,11
3 0/12,13,14,15
4 0/16,17,18,19
5 0/20,21,22,23
6 0/24,25,26,27
7 0/28,29,30,31
8 0/32,33,34,35
9 0/36,37,38,39
10 0/40,41,42,43
Stacking
847