Reference Guide

426 | Interfaces
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Splitting QSFP ports to SFP+ ports
Splitting QSFP ports to SFP+ ports is supported on the S5000 switch.
The S5000 switch supports splitting a single 40G QSFP port into four 10G SFP+ ports using one of the
supported breakout cables (refer to the Installation Guide or the Release Notes for a list of supported
cables).
Important Points
• Splitting a 40G port into 4x10G port is supported only on a standalone unit.
• Split ports cannot be used as stack-link to stack an S5000 or a Z9000.
• Split ports cannot be a part of any stacked system.
• The unit number with the split ports must be the default (stack-unit 0)
This can be verified using the
show system brief command. If the unit ID is different than 0, then it must be
renumbered to 0 before ports are split by using the
stackunit id renumber 0 command in EXEC mode.
• The quad port must be in a default configuration before it can be split into 4x10G ports. The 40G port
is lost in the config when the port is split, so be sure the port is also removed from other L2/L3 feature
configurations.
• The system must be reloaded after issuing the CLI for the change to take effect.
Command Syntax Command Mode Purpose
stack-unit stack-unit port
number portmode quad
CONFIGURATION Split a single 40G port into 4-10G ports on the S5000 or
Z9000.
stack-unit: Enter the stack member unit identifier of the stack
member to reset.
Range: 0 to 11
number: Enter the port number of the 40G port to be split.
S5000 Range: 0 to 47 for 10G ports; 48, 52, 56 and 60 for 40G ports
Z9000 Range: 0 to 31