Installation Guide

Table Of Contents
The following cables are used to make the stacking connections:
QSFP+ cable connecting the two switches at the top (slot 1 and slot 2)
SFP+ cable connecting the switch in slot 2 with the switch in slot 3
SFP+ cable connecting the switch in slot 3 with the switch in slot 4
SFP+ cable connecting the switch in slot 4 with the switch in slot 5
SFP+ cable connecting the switch in slot 5 with the switch in slot 1
Table 154 lists the recommended order for connecting the stacking ports in this example.
Table 154: Combining Stacking Port Types: Connections
Connect this slot and port . . . . . . To this slot and port
Slot 1 Stack Port 2 Slot 2 Stack Port 1
Slot 2 Stack Port 2 Slot 3 Stack Port 1
Slot 3 Stack Port 2 Slot 4 Stack Port 1
Slot 4 Stack Port 2 Slot 5 Stack Port 1
Slot 5 Stack Port 2 Slot 1 Stack Port 1
Using the SummitStack-V80 Stacking Module or VIM2-SummitStack-V80 Module
The SummitStack-V80 stacking module and VIM2-SummitStack-V80 module allow you to use active or
passive direct-attach QSFP+ cables to connect stack members across rows in a data center.
In Figure 217, passive copper cables are used to connect adjacent switches in the same rack, and the
active fiber cables provide connections up to 100 meters long between racks. The illustration shows
Summit X460 series switches; Summit X480 series switches could be used in the same way.
Connecting the Switches to Form the Stack Ring
Building Stacks
290 Summit Family Hardware Installation Guide