Installation Guide

Unlike other stacking configurations, with the VIM1-SummitStack512 modules, ports are connected in
pairs of matching port numbers. When you connect stacking cables to installed VIM1-SummitStack512
modules, match the stacking ports as listed in Table 159.
Table 159: Using the V1M1-SummitStack512 Module: Connections
Connect this slot and port . . . . . . To this slot and port
Slot 1 Stack Port 1 Slot 2 Stack Port 1
Slot 1 Stack Port 2 Slot 2 Stack Port 2
Slot 1 Stack Port 3 Slot 2 Stack Port 3
Slot 1 Stack Port 4 Slot 2 Stack Port 4
Examples of Valid Stacking Configurations
SummitStack ports are integrated into the rear panel of X250e, X440, X450, X450a, and X450e series
switches.
The X460-G2 accommodates the VIM-2ss SummitStack module, which provides SummitStack ports.
The X460, X480, and X650 also accommodate VIMs or stacking modules that provide SummitStack
ports.
The examples in the following sections show various physical stacking arrangements: all switches in a
single rack, switches in two adjacent racks, and switches at the tops of several racks in a row.
Example: Basic Stack with Four Switches
This example shows a stack of four switches in a single rack.
The slot numbers presume a console connection to the switch at the top of the physical stack.
Figure 221 shows cable connections for a 4-node stack using SummitStack 40G cables to connect
switches with integrated SummitStack ports.
Building Stacks
Connecting the Switches to Form the Stack Ring
Summit Family Hardware Installation Guide 295