Troubleshooting Flowchart; Solution - H3C S5120V3-EI Series Troubleshooting Manual

Troubleshooting flowchart

Figure 4 Troubleshooting link aggregation failure
Operational key/attribute configurations same
No
Operational key/attribute configurations of the peer ports
same as the peer port of the reference port?
More member ports than allowed max. number

Solution

To resolve the issue:
1. Verify that all physical connections are correct.
You can verify the physical connections against your network plan.
2. Verify that all member ports are up:
a. Execute the display interface command to display the status of the member ports.
Link aggregation
failed
Are all physical connections correct?
Yes
Are all member ports up?
Yes
as the reference port?
Yes
Link aggregation in dynamic mode?
Yes
Yes
of Selected ports?
No
Contact H3C Support
No
Connect physical links correctly
No
Bring all member ports up
No
Set operational key/attribute
configurations same as the reference
port
No
Set operational key/attribute
configurations of the peer ports same
as the peer port of the reference port
Yes
Set the number of member ports less
than or equal to allowed max. number of
Selected ports
19
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
Yes
Resolved?
No
End