Dell Force10 S4810P - Splitting QSFP Ports to SFP+ Ports; Important Points

500 | Interfaces
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To test the condition of cables on 10/100/1000 BASE-T modules, use the tdr-cable-test command:
Splitting QSFP ports to SFP+ ports
Splitting QSFP ports to SFP+ ports is supported on platforms: and Z
The S4810 and Z9000 platforms support 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 S4810 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.
Step Command Syntax Command Mode Usage
1
tdr-cable-test gigabitethernet <slot>/
<port>
EXEC Privilege To test for cable faults on the GigabitEthernet
cable.
• Between two ports, the user must not start
the test on both ends of the cable.
• The user must enable the interface before
starting the test.
• The port should be enabled to run the test
or the test prints an error message.
2
show tdr gigabitethernet <slot>/<port> EXEC Privilege Displays TDR test results.
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 S4810 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.
S4810 Range: 0 to 47 for 10G ports; 48, 52, 56 and 60 for 40G ports
Z9000 Range: 0 to 31