Administrator Guide

The following example shows that the even numbered interface is removed from the configuration:
Dell# show interfaces status
Port Description Status Speed Duplex Vlan
Te 1/3/15/1 Up 10000 Mbit Full --
Te 1/3/15/2 Up 10000 Mbit Full --
Te 1/3/15/3 Up 10000 Mbit Full --
Te 1/3/15/4 Up 10000 Mbit Auto --
The physical port is not present in the show inventory media command output:
Dell# show inventory media
Slot Port Type Media Serial Number Dell Qualified
-----------------------------------------------------------------------------------
1 1/15/1 QSFP 40GBASE-SR4 4829455N01XP Yes
1 1/15/2 QSFP 40GBASE-SR4 4829455N01XP Yes
1 1/15/3 QSFP 40GBASE-SR4 4829455N01XP Yes
1 1/15/4 QSFP 40GBASE-SR4 4829455N01XP Yes
Splitting QSFP Ports to SFP+ Ports
The platform supports splitting a single 40G QSFP port into four 10G SFP+ ports using one of the supported breakout cables (for a list of
supported cables, refer to the Installation Guide or the Release Notes).
NOTE: When you split a 40G port (such as fo 1/4) into four 10G ports, the 40G interface configuration is still available in
the startup configuration when you save the running configuration by using the write memory command. When a
reload of the system occurs, the 40G interface configuration is not applicable because the 40G ports are split into four
10G ports after the reload operation. While the reload is in progress, you might see error messages when the
configuration file is being loaded. You can ignore these error messages. Similarly, such error messages are displayed
during a reload after you configure the four individual 10G ports to be stacked as a single 40G port.
NOTE: You can split the 40G ports to 10G ports and vice —versa without reloading the device.
To split a single 40G port into four 10G ports, use the following command.
• Split a single 40G port into four 10G ports.
CONFIGURATION mode
stack-unit stack-unit-number port number portmode quad
• number: enter the port number of the 40G port to be split.
NOTE:
To revert the port mode to 40G, use the no stack-unit stack-unit-number port port-number
portmode quad command.
Important Points to Remember
• Splitting a 40G port into four 10G ports is supported on standalone and stacked units.
• You cannot use split ports as stack-link to stack a system.
To verify port splitting, use the show system stack-unit stack-unit-number fanout {count | configure}
command.
To verify port splitting, use the show system stack-unit stack—unit—number fanout {count | configure} command
• The quad port must be in a default configuration before you can split it into 4x10G ports. The 40G port is lost in the configuration
when the port is split; be sure that the port is also removed from other L2/L3 feature configurations.
Converting a QSFP or QSFP+ Port to an SFP or
SFP+ Port
You can convert a QSFP or QSFP+ port to an SFP or SFP+ port using the Quad to Small Form Factor Pluggable Adapter (QSA).
QSA provides smooth connectivity between devices that use Quad Lane Ports (such as the 40 Gigabit Ethernet adapters) and 10 Gigabit
hardware that uses SFP+ based cabling. Using this adapter, you can effectively use a QSFP or QSFP+ module to connect to a lower-end
switch or server that uses an SFP or SFP+ based module.
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Interfaces