Each ExtremeSwitching switch model can use various methods of stacking.
SummitStacking by Stacking Method shows the switch models that can participate in each stacking method.
| Stacking Method | Speed per Link (HDX) | Cable Type and Lengths | Switch Models |
|---|---|---|---|
| SummitStack | 10 Gbps | 0.5 m, 1.5 m, 3.0 m, 5.0 m, 20Gb Stacking Cable |
ExtremeSwitching X460-G2 (using VIM-2SS) |
| SummitStack-V | 10 Gbps | 0.5 m - 40 km SFP+ (with SR, LR, and ER) |
ExtremeSwitching X440-G2 ExtremeSwitching X450-G2 (10G models) ExtremeSwitching X460-G2 (1G models with VIM-2x) ExtremeSwitching X460-G2 (10G models) ExtremeSwitching X620 |
| SummitStack-V84 | 21 Gbps | 0.5 m - 5 m QSFP+ passive copper |
ExtremeSwitching X450-G2 (rear panel 21G stacking ports) |
| SummitStack-V160 | 40 Gbps | 0.5 m - 40 kM QSFP+ only |
ExtremeSwitching X460-G2 (VIM-2q) * ExtremeSwitching X590 (ports 29, 33) * ExtremeSwitching X465 (ports S1 and S2) * ExtremeSwitching X690 (ports 61, 69) * ExtremeSwitching X695 (ports 61, 62) Note: * The
X465, X590, and X695 can stack with each other, but not with
other V160-capable switches.
|
| SummitStack-V400 | 106 Gbps | 0.5 m - 5 m QSFP28 only |
ExtremeSwitching X590 (ports 29,33) * ExtremeSwitching X690 (ports 61, 69) ExtremeSwitching X695 (61, 62) |
| SummitStack-V400 Alternative Configuration | 100 Gbps | V400 Alternative Configuration is required when using specific
fiber cables. This mode sets the stack ports to 100G, enables
pre-emphasis, and FEC (clause_91).
|
ExtremeSwitching X590 (ports 29,33) * ExtremeSwitching X690 (ports 61, 69) ExtremeSwitching X695 (ports 61, 62) |
For more details about the stacking methods that are available for each switch series, see the hardware installation guide for your switch.
Note
Because all switches in the stack must run the same version of ExtremeXOS, it is not possible to stack switches that require ExtremeXOS version 21, for example the X440-G2 and the X620, with switches that are incompatible with ExtremeXOS version 21, for example the X440 and the X460.