Troubleshooting Ports; A Fiber Port Fails To Come Up; Symptom; Troubleshooting Flowchart - H3C S5120V3-EI Series Troubleshooting Manual

Troubleshooting ports

This section provides troubleshooting information for common port issues.

A fiber port fails to come up

Symptom

A fiber port fails to come up.

Troubleshooting flowchart

Figure 5 Troubleshooting link up failure on a fiber port
A fiber port failed to go up
Speed/duplex
match at both ends?
Speed/duplex match on port
and transceiver module?
Ports on both ends
operating correctly?
Transceiver module
and cable correct?
Fiber correct?
Contact H3C Support
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Configure matching
speed/duplex
Configure matching
speed/duplex
Replace the local and
peer ports
Replace matching
transceiver module and
cable
Replace fiber
21
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
Resolved