For Summit X650 native stacking, install VIM1 or VIM3 versatile interface module (VIM) into the rear of the switch. Link speeds and cable types vary depending on which VIM you selected. See for more information about the VIMs supported.
| Stacking Method | Speed per Link (HDX) | Cable Type and Lengths |
|---|---|---|
| SummitStack (with VIM1 module) |
varies | varies |
| SummitStack (with VIM3-40G4X) |
40 Gbps | 0.5m–100m QSFP+ only |
The VIM1-SummitStack256/512 modules require a non-standard stacking cable.
Other SummitStack ports require standard SummitStack cables.
For a complete listing of compatible cables and optical transceivers, see the Extreme Optics Compatibility website.
Note
When using native stacking on an X650 switch, data ports 23 and 24 do not function.