Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    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.

    1. Verifying the LACP Setup
    2. Verifying That LACP Packets Are Being Exchanged

    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
    Aggregated interface: ae0
    LACP state:       Role   Exp   Def  Dist  Col  Syn  Aggr  Timeout  Activity 
    xe-0/1/0          Actor  No   Yes    No   No   No   Yes     Fast    Active
    xe-0/1/0          PartnerNo   Yes    No   No   No   Yes     Fast    Passive
    LACP protocol:    Receive State    Transmit State           Mux     State
    xe-0/1/0          Defaulted        Fast periodic            Detached
    

    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
    Aggregated interface: ae0
        LACP Statistics:       LACP Rx     LACP Tx   Unknown Rx   Illegal Rx 
          xe-0/0/2                1352        2035            0            0
          xe-0/0/3                1352        2056            0            0
          

    Meaning

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

    Published: 2013-01-23