21
Cable Orientation
Splitter (Breakout) Cables and Adapters
The breakout cable is a unique capability, where a single physical quad-lane QSFP port is divided
into 2 dual-lane ports. It maximizes flexibility by enabling end users to use a combination of dual-
lane and quad-lane interfaces according to the specific requirements of their network. All system
ports may be split into 2-lane ports. Splitting a port changes the notation of that port from x/y to x/
y/z with “x/y” indicating the previous notation of the port prior to the split and “z” indicating the
number of the resulting single-lane port (1,2). Each sub-physical port is then handled as an
individual port. For example, splitting port 5 into 2 lanes gives the following new ports: 1/5/1 &
1/5/2. For the systems splitting options, see “QM8700/QM8790 Splitting Options” below.
Sample Breakout Cable
The breakout option is intended for users planning to run HDR100 using ConnectX-6 only.
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Splitting the interface deletes all configuration on that interface.
This feature is available only for Quantum ASIC systems.
In order to be able to use this feature, the system profile command must be
activated with split-ready configuration (cross-reference to system profile
command).
