Extreme Networks ExtremeSwitching X435 Series Hardware Installation Manual page 202

Stacking Considerations for Each Switch Model
X590 Stacking
X590 series switches can be stacked with other X590 switches, with X690 switches, X695 switches, and
with X870 switches. X590 series switches support native stacking using front-panel data ports 29 and
33.
Alternate stacking is not supported for X590 switches.
The stacking-support option is disabled by default for all X590 switches. For more information, see
Enabling and Disabling the Stacking-Support Option
Table 86 summarizes stacking support for X590 switches.
Note
Only QSFP28 direct-attach passive copper cable, at lengths up to 5 meters, can be used in
X590 stacking ports.
Table 86: Stacking Methods for X590 Switches
Stacking Method
SummitStack-V400 (Front panel ports 29, 33) 106 Gbps
SummitStack-V160 (Front panel ports 29, 33)
X620 Stacking
See X620 Stacking
The stacking-support option is enabled by default for X620 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 X620 switches. For more information, see
Stacking Ports
Table 87: Stacking Methods for X620 Switches
Stacking Method
SummitStack-V (Front panel 10G models)
202 ExtremeSwitching Hardware Installation Guide
on page 89 for a full description of the X620 switch's stacking capabilities.
on page 206.
on page 192.
Speed per Link (HDX) Cable Type and Lengths
0.5 m – 5 m
QSFP28
42 Gbps 0.5 m – 5 m
QSFP28
on page 192.
Selecting Native and Alternate
Speed per Link (HDX) Cable Type and Lengths
10 Gbps 0.5m–40km
SFP+
Building Stacks