ExtremeSwitching X440-G2 Stacking

The stacking-support option is not enabled by default for X440-G2 10G switch models. 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 X440-G2 10G switch models. For more information, see Selecting Native and Alternate Stacking Ports.

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Stacking Methods for X440-G2 Switches

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

(Front panel 10G models)

10 Gbps 0.5m–40km

SFP+

Alternate stacking support is available on all X440-G2 10-gigabit models (10GE4) using two SFP+ ports, when the switch has been enabled for stacking (enable stacking-support command). 10G upgrade licensing is not required to enable stacking on the designated stack ports. Alternate Stacking Ports for X440-G2 Switches summarizes alternate stacking support for the various X440-G2 switch models.

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Alternate Stacking Ports for X440-G2 Switches

Switch Model Type or location of Native Stacking Ports Alternate Stacking Ports Location of Alternate Stacking Ports
X440-G2-12t-10GE4

X440-G2-12p-10GE4

Fixed (front panel) 15,16 Front panel
X440-G2-24t-10GE4

X440-G2-24p-10GE4

X440-G2-24x-10GE4

X440-G2-24t-10GE4-DC

Fixed (rear panel) 27,28 Rear panel
X440-G2-48t-10GE4

X440-G2-48p-10GE4

X440-G2-48t-10GE4-DC

Fixed

(rear panel, dedicated SFP+ port)

49,50 Rear panel