Each ExtremeSwitching switch model can use various methods of stacking.
Summit Stacking by Stacking Method shows the switch models that can participate in each stacking method.
Summit Stacking by 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 |
Summit X460-G2 |
| SummitStack-V | 10 Gbps | 0.5 m - 40 km SFP+, XENPAK (with SR, LR, and ER) |
ExtremeSwitching X440-G2 Summit X450-G2 (10G models) Summit X460-G2 (1G models with VIM-2x) Summit X460-G2 (10G models) ExtremeSwitching X620 Summit X670-G2 |
| SummitStack-V84 | 21 Gbps | 0.5 m - 5 m QSFP+ passive copper |
Summit X450-G2 (rear panel 21G stacking ports) |
| SummitStack-V160 | 40 Gbps | 0.5 m - 100 m QSFP+ only |
X460-G2 (VIM-2q) Summit X670-G2-48x-4q (ports 57, 61) * ExtremeSwitching X590 (ports 29, 33) * X465 (ports 51 and 52) Note: * The X465 and X590 can
stack with each other, but not with other V160-capable
switches.
|
| SummitStack-V320 | 80 Gbps | 0.5 m - 100 m QSFP+ only |
Summit X670-G2-48x-4q (ports 49, 53, 57, 61) |
| SummitStack-V400 | 106 Gbps | 0.5 m - 100 m QSFP28 only |
ExtremeSwitching X590 (ports 29,33) ExtremeSwitching X690 (ports 61,69) ExtremeSwitching X870 (ports 121,125) |
| 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 X870 (ports 121,125) |
For more details about the stacking methods that are available for each switch series, see the ExtremeSwitching and Summit Switches: Hardware Installation Guide for Switches Using ExtremeXOS Version 30.
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.
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