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Use a 10-Gigabit SFP+ cable to connect the local port directly to another 10-Gigabit SFP+ fiber
port on the same device.
If the local port can come up, replace the peer port with a new one.
If the local port cannot come up, replace the local port with a new one.
4.
Verify that the transceiver module and cable are operating correctly:
a.
Execute the
display transceiver alarm interface
command to check for alarms
on the transceiver module.
−
The device displays
None
if no error has occurred.
−
The device displays alarms if the transceiver module has failed or if the type of the
transceiver module does not match the port type.
b.
Use an optical power meter to verify that the Tx power and Rx power of the transceiver
module are stable and are within the correct range.
c.
Execute the
display transceiver interface
command to verify that the local
transceiver module has the same wavelength and transmission distance as the peer
transceiver module.
d.
If the transceiver module or cable is not operating correctly, replace it with a new H3C
transceiver module or cable that matches the fiber port.
For more information about transceiver modules and cables, see the installation guide for
the switch.
5.
Verify that the fiber matches the transceiver module. If they do not match, replace the fiber with
a new one that matches the transceiver module.
6.
If the issue persists, collect diagnostic information and contact H3C Support.
To collect diagnostic information, execute the
display diagnostic-information
command to display or save running status data for multiple feature modules.
<Sysname> display diagnostic-information
Save or display diagnostic information (Y=save, N=display)? [Y/N]:Y
100-GE QSFP28 fiber port fails to come up
Symptom
A 100-GE QSFP28 fiber port fails to come up.