X670-G2 Stacking

The stacking-support option is enabled by default for X670-G2 switches. 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 X670-G2 switches. For more information, see Selecting Native and Alternate Stacking Ports.

Table 1. Stacking Methods for X670-G2 Switches
Stacking Method Speed per Link (HDX) Cable Type and Lengths
SummitStack-V

all X670-G2 switch models

10 Gbps SFP+ to SFP+
SummitStack-V80 (supported in EXOS 30.1 and prior releases only)

model 48x-4q only

20 Gbps QSFP+ to QSFP+
SummitStack-V160

model 48x-4q only

40 Gbps QSFP+ to QSFP+
SummitStack-V320

model 48x-4q only

80 Gbps QSFP+ to QSFP+

Native Stacking for X670-G2 Switches

For X670-G2 native stacking, use the 4 x 40 Gb interfaces that are fixed on the front of the switch. Use any Extreme Networks certified 40G QSFP+ cable or optical transceiver to make the connections among the switches to be stacked.

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

X670-G2-48x-4q switches support native stacking using V160 and V320.
  • For SummitStack-V160 stacking, use ports 57 and 61.
  • For SummitStack-V320 stacking, use ports 49, 53, 57, and 61.

X670-G2-72x switches support do not support native stacking.

Alternate Stacking for X670-G2 Switches

Alternate Stacking Ports for X670-G2 Switches summarizes alternate stacking support for X670-G2 switches.

Table 2. Alternate Stacking Ports for X670-G2 Switches
Switch Model Type or location of Native Stacking Ports Alternate Stacking Ports Location of Alternate Stacking Ports
X670-G2-48x-4q Ports 49,53,57,61 47,48 Front panel
X670-G2-72x None 71,72 Front panel
Note

Note

  • On X670-G2-48x-4q switches, ports 47 and 48 are not available as data ports when the alternate stacking ports are used.
  • On X670-G2-72x switches, ports 71 and 72 are not available as data ports when the alternate stacking ports are used.

Additional Stacking Considerations for X670-G2 Switches

Before deploying a new stack with X670-G2 switches, consider the following guidelines:


1 Combined over paired ports