Splitting Qsfp+ Ports To Sfp+ Ports; Important Points To Remember - Dell Networking S5000 Getting Started Manual

WARNING: When working with optical fibres, follow all the warning labels and
always wear eye protection. Never look directly into the end of a terminated or
unterminated fibre or connector as it may cause eye damage.
1. Position the optic so it is in the correct position. The optic has a key that prevents it
from being inserted incorrectly.
2. Insert the optic into the port until it gently snaps into place.
NOTE: Both rows of QSFP+ ports require that you install the 40GbE optics with the
tabs facing up.
NOTE: When you cable the ports, be sure not to interfere with the airflow from the
small vent holes above and below the ports.

Splitting QSFP+ Ports to SFP+ Ports

The S5000 supports splitting a single 40GbE QSFP+ port into four 10GbE SFP+ ports using
one of the supported breakout cables.
For a list of supported optics, refer to the S5000 data sheet:
enterprise/p/force10-s-series/pd .
• Configure the system to recognize the port mode change.
CONFIGURATION mode
stack-unit unit-number port number portmode quad
stack-unit<unit-number> - Enter the stack member unit identifier of the
–
stack member to reset. The range is 0 to 11. The default is 0.
port <number>- Enter the port number of the 40GbE port to be split. The
–
range is 48 to 60.
portmode quad - Configure a 40GbE port to operate in 4x10GbE mode.
–
Example of splitting a QSFP+ port to SFP+ ports
stack-unit 0 port 52 portmode quad

Important Points to Remember

• You cannot use split ports as a stack-link to stack an S5000 unit.
• The quad port must be in a default configuration before you can split it into four
10GbE SFP+ ports. When you split the port, the 40GbE port is lost in the running
configuration. Be sure that the port is also removed from other L2/L3 feature
configurations.
• For the split-port change to take effect, you must reload the system after issuing
the CLI change commands.
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