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IX5-28GPX Installation Guide
41
Stacking Slots
The AT-IX5-28GPX switches come with two stacking slots. The slots are
the last two SFP+ slots on the switches and are labeled S1/27 and S2/28.
The slots have two functions. You may use them with the VCStack feature
to build a stack of switches or, by disabling the VCStack feature, you may
use them with regular SFP or SFP+ transceivers as additional networking
slots.
The names of the slots depend on the status of the VCStack feature on the
switch. The management software refers to the slots as “S1” and “S2.”
when the VCStack feature is enabled and the slots are used with the
special stacking transceivers to create a stack.
When you disable the VCStack feature to use the slots with regular SFP or
SFP+ transceivers on a stand-alone switch, the slots are referred to as
slots 27 and 28. See Chapter 5, “Configuring the Switch for Stand-alone
Operations” on page 57 for instructions for disabling VCStack.
Note
When VCStack is enabled on the switch, the stacking slots only
work with the stacking transceivers in Table 7 on page 42. If you
install regular SFP or SFP+ transceivers in the stacking slots when
stacking is activated, the management software disables them and
enters an error message in the buffered log.