![](/images/new-backgrounds/1166060/16606061x1.webp)
Stacking Units 31
4If you use the management software of the units:
■Ensure that all the units have the same version of management software
■Ensure that you
For more information about management software, see “Managing the Switch” on page 34.
Figure 13 A stack of three units
Switch 1100/3300
Switch 3300 SM
Switch 3300 MM