Service Manual

Enable the port to run the test or the test prints an error message.
2. Displays TDR test results.
EXEC Privilege mode
show tdr tengigabitethernet slot/port[/subport]
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.
Interfaces
447