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• Troubleshooting an Aggregated Ethernet Interface  

• Related Topics
• Verifying the Status of a LAG Interface
• Example: Configuring Aggregated Ethernet High-Speed Uplinks Between a Virtual Chassis Access Switch and a Virtual Chassis Distribution Switch
• Example: Configuring Aggregated Ethernet High-Speed Uplinks with LACP Between a Virtual Chassis Access Switch and a Virtual Chassis Distribution Switch

Troubleshooting an Aggregated Ethernet Interface

Problem

The show interfaces terse command shows that the LAG is down.

Solution

Check the following:

• Verify that there is no configuration mismatch.
• Verify that all member ports are up.
• Verify that a LAG is part of family ethernet—switching (Layer 2 LAG) or family inet (Layer 3 LAG).
• Verify that the LAG member is connected to the correct LAG at the other end.
• Verify that the LAG members belong to the same switch (or the same virtual chassis).