Troubleshooting Flowchart; Solution - HP FlexFabric 12900 series Troubleshooting Manual

Troubleshooting flowchart

Figure 13 Troubleshooting link up failure on a port
A port failed to come up
Speed/duplex match
on local and peer port?
Yes
match on transceiver module and
Yes
Local/peer port
operating correctly?
Yes
module/cable correct?
Yes
Yes
Contact the support

Solution

To resolve the problem:
1. Verify that the speed and duplex mode of the local port match the speed and duplex mode of the
peer port:
a. Execute the display interface brief command to examine whether the speed and duplex mode
of the port match the speed and duplex mode of the peer port.
b. If they do not match, use the speed command and the duplex command to set the speed and
duplex mode for the port.
Speed/duplex
port?
Transceiver
Fiber correct?
No
Configure matching
speed/duplex
No
Configure matching
speed/duplex
No
Replace local/peer port
No
Replace transceiver
module/cable
No
Replace fiber
38
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
End