IX5-28GPX Installation Guide
Stacking SFP+ Slots
Two of the four SFP+ slots on the front panel of the switch can be used with stacking transceivers to create a VCStack of up to four AT-IX5- 28GPX switches. The switches of a VCStack act as a single virtual unit. They synchronize their actions so that switching operations, like spanning tree protocols, virtual LANs, and static port trunks, span across all the units and ports. The two main advantages of stacks are:
You can manage multiple units simultaneously, which can simplify network management.
You have more flexibility in how you configure some of the features. For instance, a static port trunk on a stand-alone switch has to consist of ports from the same switch. In contrast, a static trunk on a stack may consist of ports from different switches in the same stack.
The slots for the stacking transceivers are SFP+ slots 27 and 28.
Note
If you use the switch as a stand-alone device, you can use the slots with regular SFP and SFP+ transceivers by disabling the VCStack feature. See Chapter 5, “Configuring the Switch for Stand-alone Operations” on page 77 for instructions.
