Summit X480 Stacking

The stacking-support option is enabled by default for X480 switches except in the case of X480-24x switches with a VIM2-SummitStack, VIM2-SummitStack128, or VIM2-SummitStack-V80 module installed. For more information, see Enabling and Disabling the Stacking-Support Option.

The stacking port selection option, which allows you to choose between native and alternate ports, is enabled by default for X480-24x switches with a VIM2-SummitStack, VIM2-SummitStack128, or VIM2-SummitStack-V80 module installed. For other X480 switch configurations, the option is disabled. For more information, see Selecting Native and Alternate Stacking Ports.

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Stacking Methods for X480 Switches

Stacking Method Speed per Link (HDX) Cable Type and Lengths
SummitStack

(with VIM2-SummitStack)

See Native Stacking for X480 Switches.

10 Gbps 0.5m, 1.5m, 3.0m, 5.0m

20 Gb Stacking Cable

SummitStack-V

(with VIM2-10G4X)

See Alternate Stacking for X480 Switches.

10 Gbps 0.5m–40km

XFP

SummitStack-V80

(with VIM2-SSV80 and VIM3-40G4X)

20 Gbps 0.5m–100m

QSFP+ only

SummitStack-V160

(with VIM3-40G4X)

40 Gbps 0.5m–100m

QSFP+ only

SummitStack-V320

(with VIM3-40G4X)

80 Gbps 0.5m–100m

QSFP+ only

SummitStack128

(With VIM2-SS128)1

32 Gbps 0.5m, 1.5m, 3.0m

Native Stacking for X480 Switches

For Summit X480 native stacking, install VIM2 or VIM3 versatile interface module (VIM) into the rear of the switch. See Versatile Interface Modules for the Summit X480 Series Switches for more information about the VIMs supported.

The VIM3-40G4X module can be used for native stacking with a Extreme Networks certified 40G QSFP+ cable. Other SummitStack ports require standard SummitStack cables.

For a complete listing of compatible cables and optical transceivers, see the Extreme Hardware/Software Compatibility and Recommendation Matrices.

Note

Note

Stack Port 1 is port S3 and Stack Port 2 is port S4 on the VIM3-40G4X.

Alternate Stacking for X480 Switches

Summit X480-48t and X480-48x switches do not have 10-Gbps ports on the base model switch. To use the SummitStack-V feature on these switches, you must install a VIM2-10G4X module – after which ports S3 (51) and S4 (52) can be configured as alternate stacking ports. Alternate stacking ports are not supported with the VIM3-40G4X.

On an X480-24x switch with an installed VIM2-10G4X module, you can configure ports S3 (29) and S4 (30) as alternate stacking ports for the SummitStack-V feature. If you use a VIM3-40G4X module for stacking, ports 25 and 26 are configured as the alternate stacking ports.

On an X480-24x switch with installed native stacking ports on a VIM2 module, you can do either of the following:
  • Configure both ports 25 and 26 on the switch front panel as alternate stacking ports.
  • Configure one alternate stacking port on the switch front panel and use a native stacking port on the installed VIM2 module.

On an X480-24x switch with no installed VIM2 module, you can configure ports 25 and 26 on the switch front panel as alternate stacking ports.

Alternate Stacking Ports for X480 Switches summarizes alternate stacking support for X480 switches.

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Alternate Stacking Ports for X480 Switches

Switch Model Type or location of Native Stacking Ports Alternate Stacking Ports Location of Alternate Stacking Ports
X480-24x None: VIM has only data ports S3,S4

(29,30)

VIM2-10G4X module
None: No installed VIM 25,26 Front panel
VIM2-SummitStack module

VIM2-SummitStack128 module

VIM2-SummitStack-V80 module

VIM3-40G4X

25,26 Front panel
X480-48t

X480-48x

None: VIM has only data ports S3,S4

(51,52)

VIM2-10G4X module

1 VIM2-SS128 is a module that can stack with other X480 switches using VIM2-SS128. It can also stack using SS256 with a conversion cable.