16
Troubleshooting ports
This section provides troubleshooting information for common port issues.
A 10-GE SFP+ fiber port or 40-GE QSFP+ fiber
port fails to go up
Symptom
A 10-GE SFP+ fiber port or 40-GE QSFP+ fiber port fails to go up.
Troubleshooting flowchart
Figure 5 Troubleshooting link up failure on a copper port
Solution
To resolve the issue:
Speed/duplex
match at both ends?
Speed/duplex match on port
and transceiver module?
Configure matching
speed/duplex
Resolved?
Configure matching
speed/duplex
A fiber port failed to go up
No
Yes
No
Yes
Resolved?
No
Yes
Yes
No
Transceiver module
and cable correct?
Replace matching
transceiver module and
cable
Resolved?
No
Yes
Yes
No
Fiber correct?
Replace fiber
Resolved?
No
Yes
Yes
No
Contact H3C Support
Resolved
Ports on both ends
operating correctly?
Replace the local and
peer ports
Resolved?
No
Yes
Yes
No
