Installation Guide

Table Of Contents

1 2 3 4

1 2

1 3

2 4

Slot 1 X670V-48x with VIM4-40G4X

Slot 2 X670V-48x with VIM4-40G4X

Slot 3 X650-48x with VIM3-40G4X

Slot 4 X480 with VIM2-SummitStack-V80

Slot 5 X460 with SummitStack-V80

Figure 218: SummitStack-V160 Conﬁguration

Table 155 lists the recommended order for connecting the stacking ports in this example.

Table 155: Using the SummitStack-V160 Stacking: 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

To connect a VIM3-40G4X or VIM4-40G4X stacking port to a stacking port on a VIM2-SummitStack-

V80 or SummitStack-V80 module, you must set the VIM3 or VIM4 port to operate at the slower speed

of the SummitStack-V80 port. To do so, use the conﬁgure stacking-support stack-ports selection

command. For more information about conﬁguring stacking ports, see the ExtremeXOS 16.2 User Guide.

For SummitStack V-160 on the X770, ports 103 and 104 are the stacking ports.

Using SummitStack-V320 Stacking

A stacking rate of 320 Gbps can be achieved across a stack of X670-G2-48x-4q and X770 switches

using the QSFP+ connection and cables. These switches can use 80-Gbps stacking connections that

provide 320 Gbps full-duplex bandwidth.

A stacking rate of 320 Gbps can be achieved across a stack of X480 (with VIM3-40G4X), X650 (with

VIM3-40G4X), X670V (with VIM4-40G4X), and X770 switches using the QSFP+ connection and cables.

These switches can use 80-Gbps stacking connections that provide 320 Gbps full-duplex bandwidth.

The following ﬁgure shows an example of a SummitStack-V320 stack using Summit X670 and X650

series switches.

Connecting the Switches to Form the Stack Ring

Building Stacks

292 Summit Family Hardware Installation Guide