All cables can be inserted or removed with the unit powered on.
To insert a cable, press the connector into the port receptacle until the connector is firmly seated. The LED indicator, corresponding to each data port, will light when the physical connection is established. When a logical connection is made, the relevant port LED will turn on.
To remove a cable, disengage the locks and slowly pull the connector away from the port receptacle. The LED indicator for that port will turn off when the cable is unseated.
For a list of Supported Cables and Transceivers, please refer to the SN2000 Systems Datasheet.
For full cabling guidelines, ask your NVIDIA representative for a copy of NVIDIA Cable Management Guidelines and FAQs Application Note.
For more information about port LEDs, refer to Port LEDs.
QSFP Cable Orientation
SN2010 SFP Cable Orientation
SN2740 Cable Orientation
SN2410 Cable Orientation
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 https://www.nvidia.com/en-us/networking/interconnect/.
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 systemctl restart switchd command. For more details, see Switch Port Attributes in the Cumulus Linux User Guide.
Examples of Splitter (Breakout or Fanout) Cables
SN2700 and SN2740 Splitting Options
The top QSFP28 ports marked in green are splittable to 4 SFP28 ports, each.
The bottom QSFP28 ports (gray) are blocked when the upper ports are in split mode.
All QSFP28 ports can be split to 2 QSFP28 ports.
SN2410 Splitting Options
The top QSFP28 ports – 49, 51, 53, 55 (green) – are splittable to 4 SFP28 ports each.
The bottom QSFP28 ports – 50, 52, 54, 56 (gray) – are blocked when the upper ports are in 4 SFP28 split mode.
All QSFP28 ports can be split into two QSFP28 ports.
SN2100 Splitting Options
All QSFP28 ports are splittable. Each port can be split into 4xSFP28 (10/25G) or 2xQSFP28 (50G) ports. There are no blocking requirements.
SN2010 Splitting Options
All QSFP28 ports are splittable. Each port can be split into 4xSFP28 (10/25G) or 2xQSFP28 (50G) ports. There are no blocking requirements.
SN2201 Splitting Options
All QSFP28 ports are splittable. Each port can be split into 4xSFP28 (10/25G) or 2xQSFP28 (50G) ports. There are no blocking requirements.
