Splitting Qsfp Ports To Sfp+ Ports; Important Points To Know; Connect The Stacking Ports (Optional) - Dell S4810 Installing Manual

Splitting QSFP Ports to SFP+ Ports

The S4810 supports splitting a single 40G QSFP port into four 10G SFP+ ports using one of the
supported breakout cables.
For the system to recognize the port type change, you must enter the stack-unit portmode command. For
example:
stack-unit port
stack-unit
• stack-unit: Enter the stack member unit identifier of the stack member to reset. Range: 0 - 11.
• number: Enter the port number of the 40G port to be split. Range:0-31.

Important Points to Know:

• Splitting a 40G port into four 10G ports is supported only on a standalone unit.
• You cannot use split ports as stack-link to stack S4810 systems.
• Split ports in a S4810 system cannot be a part of any stacked system.
• The unit number with the split ports must be the default (stack-unit 0). You can verify this using the
show system brief command. If the unit ID is not 0, you must renumber it to 0 before the ports are split
by using the stackunit id renumber 0 command in EXEC mode.
• The quad port must be in a default configuration before you can split it into four 10G ports. The 40G
port is lost in the configuration when you split the port, so be sure 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 command. Save
your configuration.

Connect the Stacking Ports (Optional)

NOTE: User Port Stacking is NOT supported on FTOS versions 8.3.8.x or 8.3.10.x.
.
Before you make your stacking port connections, rack-mount the systems or insert them into a cabinet.
To connect the stacking ports, insert one end of the optical cable into a configured port and insert the
other end of the optical cable into a similarly configured port of the adjacent system.
There are no unique stacking ports; you can configure the SFP and QSFP+ ports to act as stacking ports.
The SFP ports are labeled 0-47. The QSFP+ ports are labeled 48 and 56 for the lower ports and 52 and 60
for the upper ports.
NOTE: The S4810 system does not stack with other S-Series systems.
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portmode quad
number
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