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Verifying That LACP Is Configured Correctly and Bundle Members Are Exchanging LACP Protocol Packets

 

Verify that LACP has been set up correctly and that the bundle members are transmitting LACP protocol packets.

Verifying the LACP Setup

Purpose

Verify that the LACP has been set up correctly.

Action

To verify that LACP has been enabled as active on one end:

user@switch>show lacp interfaces xe-0/0/0

Meaning

This example shows that LACP has been configured with one side as active and the other as passive. When LACP is enabled, one side must be set as active in order for the bundled link to be up.

Verifying That LACP Packets Are Being Exchanged

Purpose

Verify that LACP packets are being exchanged between interfaces.

Action

Use the show lacp statistics interfaces interface-name command to display LACP BPDU exchange information.

show lacp statistics interfaces ae0

Meaning

The output here shows that the link is up and that PDUs are being exchanged.