Troubleshooting Flowchart; Solution - HPE FlexNetwork 10500 SERIES Troubleshooting Manual

Troubleshooting flowchart

Figure 14 Troubleshooting link up failure on a port
A 40-GE QSFP+/CFP fiber port fails to
Local/peer port correct?
module/cable correct?
Contact the support

Solution

To resolve the problem:
1. Verify that the local and peer ports are operating correctly:
a. Use a QSFP+ cable (or CFP transceiver module and fiber) to directly connect the local port
and another 40-GE QSFP+ or CFP fiber port of the same interface module. A QSFP+ cable
is suitable for short connections.
b. If the local port can come up, replace the peer port with a new one (on an interface module
of the same type, if possible) to verify that the peer port is operating correctly.
c. If the local port cannot come up, replace the local port with a new one (on an interface
module of the same type, if possible) to verify that the local port is operating correctly.
2. Verify that the transceiver module is operating correctly:
a. Execute the display transceiver alarm interface command to examine the alarms present
on the transceiver module.
− The device displays None if no error occurs.
− The device displays alarms if the transceiver module fails or the type of the transceiver
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 wavelength and
transmission distance of the local transceiver module are consistent with the wavelength
and transmission distance of the peer transceiver module.
d. If the transceiver module is not operating correctly, replace it with a new HPE transceiver
module that matches the fiber port.
For more information about transceiver modules, see related installation guides.
come up
No
Yes
No
Transceiver
Yes
No
Fiber correct?
Yes
module does not match the port type.
Replace local/peer port
Replace transceiver
module/cable
Replace fiber
42
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
End