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LACP and VLAN related questions.

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  • 1.  LACP and VLAN related questions.

    Posted Apr 02, 2021 12:35 PM
    Hi Everyone,

    I'm new here and currently I'm studying LACP as the company I'm working for is using HPE Aruba switches.
    So I found out that there's a slight difference on how the terms are different between HPE and CIsco network devices so
    I'm watching this tutorial and I'm a bit confused. Feel free to read my notes below:

    "Here port 45 and 46 was assigned to Trk1 using lacp protocol"
    trunk 45-46 trk1 lacp

    "Here port 47 and 48 was assigned to Trk2 using lacp protocol"
    trunk 47-48 trk2 lacp

    "Here's where I got confused. As I know you can only assigned a port to a vlan and declare if it was tagged or untagged.
    Can you also do it with a trunk? And how is the tagged and untagged trunk different?

    vlan 100 untagged Trk1
    vlan 100 untagged Trk2
    vlan 200 tagged Trk1
    vlan 210 tagged Trk1
    vlan 210 tagged Trk2
    vlan 400 tagged Trk2

    Feel free to post your comments and suggestions, thank you.

  • 2.  RE: LACP and VLAN related questions.

    Posted May 04, 2021 10:25 AM

    On Aruba/HP switches a trunk is a different thing than Cisco. HP/Aruba trunks are (LACP) link aggregations.

    So an LACP Trk is a bundle of ports which can be either tagged or untagged.


    Example from 2930:


    First, to create the trunk:

    • - trunk 1/45,1/46 trk1 lacp
    • - trunk 1/47,1/48 trk2 lacp


    Assign VLAN's to the trunk:

    • - interface trk1
      • -- tagged vlan 200,210
      • -- untagged vlan 100
    • - interface trk2
      • -- tagged vlan 210,400
      • -- untagged vlan 100

    Steve Baker