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 ExtremeSwitching X670-G2 ExtremeSwitching 5520 (using
5520-VIM-4X)
Note: The 5520
switches can stack with the 5320 switches and 5420 switches
by installing a 5520-VIM-4X into the 5520
switches.
|
| SummitStack-V40 | 10 Gbps | 0.5 m - 40 m SFP+ (with SR and LR) |
ExtremeSwitching 5320 (ports
U1, U2)
Note: The
5320 switches can stack with themselves, the 5420, or 5520
switches using 5520-VIM-4X ports.
ExtremeSwitching 5420 (ports
U1, U2)
Note: The 5420
switches can stack with themselves, the 5320 switches, or
5520 switches using 5520-VIM-4X ports.
|
| SummitStack-V80 | 20 Gbps | 0.5 m - 5 m SFP-DD | ExtremeSwitching 5420 (ports U1,
U2) Note: The 5420 switches
can stack with themselves and ExtremeSwitching 5520
(ports U1 and U2) when configured for
SummitStack-V80.
|
| 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 X670-G2-48x-4q (ports 57, 61) * ExtremeSwitching X590 (ports 29, 33) * ExtremeSwitching X690 (ports 61, 69) * ExtremeSwitching X465 (ports S1 and S2) * ExtremeSwitching X695 (ports 61, 62) Note: * The
X465, X590, X690, and X695 can stack with each other, but not
with other V160-capable switches.
ExtremeSwitching 5520 (ports
U1, U2)
Note: If you use SummitStack-V160, 5520 switches can
stack only with themselves. To stack with 5320 and 5420
switches, the 5520 can use either SummitStack-V80 on ports
U1 and U2 or SummitStack-V on the alternate stack ports
(Using a 5520-VIM-4X).
|
| SummitStack-V200 | 50 Gbps | 0.5 m - 100 m QSFP28 only |
ExtremeSwitching 5520 (ports U1,
U2) Note: If you
use SummitStack-V200, 5520 switches can stack only with
themselves.
|
| SummitStack-V320 | 80 Gbps | 0.5 m - 100 m QSFP+ only |
ExtremeSwitching 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) 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 X870 (ports 121,125) 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.