Troubleshooting Flowchart; Solution - HP FlexFabric 12900 series Troubleshooting Manual

Troubleshooting flowchart

Figure 20 Troubleshooting failure to send packets
A port failed to send packets
View packet statistics of the
configurations affect packet
medium correct?
Contact the support

Solution

To resolve the problem:
1. Verify that the ports at both ends are up.
2. Examine the packet statistics of the port:
a. (Optional.) Use the reset counter interface command in user view to clear the packet statistics
of the port.
This command resets all packet counters to 0, so that you can view the statistics changes more
clearly.
b. Use the display interface command to verify that the number of outgoing packets is
accumulating.
c. Verify that the number of error frames is not accumulating.
If the number of error frames is accumulating, remove the errors. For more information, see
"Error frames (for example, CRC errors) on a
3. Verify that the port configurations do not affect packet sending:
a. Use the display interface brief command to verify that the port configurations are correct.
The port configurations include the duplex mode, speed, port type, and VLAN configurations
of the ports at both ends of the link. If configuration errors exist, modify the port configurations.
If the port fails to send packets, use the shutdown command and then the undo shutdown
command to re-enable the port.
port
Port
sending?
Yes
Port and link
Yes
No
Modify port
configurations
No
Use correct port and
link medium
port."
49
Yes
Resolved?
No
Yes
Resolved?
No
End