HP 5920 Series Troubleshooting Guide

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Troubleshooting flowchart
Figure 4 Troubleshooting link aggregation failure
Solution
To resolve the problem:
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:
End
Resolved?
Resolved?
Resolved?
Resolved?
Resolved?
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Are all physical connections correct?
Are all member ports up?
Connect physical links correctly
Bring all member ports up
No
Yes
No
Yes
Operational key/attribute configurations same
as the reference port?
Set operational key/attribute
configurations same as the reference
port
No
Yes
Set the number of member ports less
than or equal to allowed max. number of
Selected ports
Yes
No
More member ports than allowed max. number
of Selected ports?
Operational key/attribute configurations of the peer ports
same as the peer port of the reference port?
Set operational key/attribute
configurations of the peer ports same
as the peer port of the reference port
No
Yes
Link aggregation
failed
Link aggregation in dynamic mode?
Yes
No
Contact HP Support

HP 5920 Series Specifications

General

Brand	HP
Model	5920 Series
Category	Switch
Language	English