Non Dell-Qualified Transceivers; Splitting Qsfp Ports To Sfp+ Ports; Converting A Qsfp Or Qsfp+ Port To An Sfp Or Sfp+ Port - Dell S4048–ON Configuration Manual

Non Dell-Qualified Transceivers

The system supports Dell-qualified transceivers and only some of the non Dell-qualified transceivers.
If the system displays an error message similar to the following, the transceiver is not Dell-qualified. The Dell Networking OS places
the interface in error-disabled (operationally down) state.
Apr 29 05:09:16: %S4048-ON:1 %IFAGT-2-TRANSCEIVER_UNSUPPORTED_ERROR: Transceiver in slot 1
port 50 unrecognized, putting interface in operational-down state
The following command output displays that the interface is in error-disabled state:
Dell#show interfaces fortyGigE 1/50
fortyGigE 1/50 is up, line protocol is down(error-disabled[Transceiver Unsupported])
Hardware is DellEth, address is 34:17:eb:f2:25:c6
Current address is 34:17:eb:f2:25:c6
Non-qualified pluggable media present, QSFP type is 40GBASE-SR4
Wavelength is 850nm
No power
Interface index is 2103813
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :3417ebf225c6
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 40000 Mbit
<output truncated for brevity>
For information about which optics and transceivers are supported, contact your Dell representative.

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.
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
To verify port splitting, use the 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.
• The system must be reloaded after issuing the CLI for the change to take effect.

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