Important Points to Remember
• The unit number with the split ports must be the default (stack-unit 0). To verify the unit number, use
the
show system brief
command. If the unit ID is different than 0, renumber it to 0 before you
split the ports by using the
stack-unit id renumber 0
command in EXEC mode.
• The quad port must be in a default configuration before you can split it into four 10G SFP+ ports. The
40G port is lost in the configuration when you split the port, so be sure to remove the port from other
L2/L3 feature configurations.
• For the split-port change to take effect, reload the system after issuing the command. Save your
configuration.
Splitting QSFP+ Ports to SFP+ or RJ-45 Ports
The S4820T supports splitting a single 40G QSFP port into four 10G SFP+ ports or four 10G RJ-45 using
one of the supported breakout cables.
For the system to recognize the port type change, enter the
stack-unit portmode
command. For
example:
stack-unit
stack-unit
port
number
portmode quad
•
stack-unit
: enter the stack member unit identifier of the stack member to reset. The range is from
0 to 7.
•
number
: enter the port number of the 40G port to be split. The range is from 0 to 124 in increments
of 4.
Install the Hardware
27
Summary of Contents for S4820T
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