Splitter (Breakout) Cables And Adapters - Nvidia Spectrum SN2000 Hardware User Manual

SN2410 Cable Orientation
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The SN2410 system includes ports of different types. The figure above does not apply to the
SFP28 ports; see "SN2410 Splitting Options" below.

Splitter (Breakout) Cables and Adapters

A 100GbE port can be split to two 50GbE ports, or to four (or less) 25GbE ports, using an NVIDIA
splitter cable.
Splitting a 100GbE QSFP28 port to 4 separate 25GbE ports (using a splitter cable) may disable
(unmap) the 100GbE port below it. See specific splitting options per system detailed below.
Using Splitter (Breakout) Cables with NVIDIA Onyx (MLNX-OS)
When using this feature, you should log into the NVIDIA Onyx (MLNX-OS) CLI and configure the
individual ports to be 'split-2' or 'split-4'. For further information on NVIDIA's cable, visit
www.mellanox.com/page/interconnect_overview.
Using Splitter (Breakout) Cables with Cumulus Linux
If you are using 4x10G direct attach copper cables or active optical cables, edit the /etc/cumulus/
ports.conf to enable support for these cables, then restart the switchd service using the sudo
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