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how to configure trunk in two situations

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  • 1.  how to configure trunk in two situations

    Posted Mar 28, 2024 11:09 AM
    1. trunk between 2530 to 2930

    using trk1, trk2 etc

    or with 

    untag on the the default vlan and tag on the vlans 

    what is the difference ?

    and also if i have on one of the switches above 2 different trunks to to different switch's,

    i need to user the trk1, trk2 etc or again only untag on the defualt and tag the vlans i want to pass ? 

    2. trunk between 2930 to 6000/8320

    in this situation only the 2930 have a trk1, trk2 etc,

    the 6000/8320 don't have this trk1, trk2,

    i can only see i can create lag or make the port nativ untag and allowed the vlans

    so which way is the right one.

    thanks,

    liran



  • 2.  RE: how to configure trunk in two situations

    Posted Mar 28, 2024 12:17 PM

    Well you are configuring two separate protocols in this case - and the terminology/syntax between aos-s (2930) and aos-cx (6000) is different for each.

    So if the goal is to configure redundant Layer-2 Links between two switches:

    You will want first want to configure link aggregation - two physical interfaces grouped together
    AOS-S = trunk 1-2 trk1 lacp  - This would initial a trunk using 802.3ad dynamic standard on Switch Ports 1 and 2
    AOS-CX = interface lag 1 ~ lacp mode active & interface 1/1/1 ~ lag 100 interface 1/1/2 ~ lag 100

    Then you can VLANs to those link aggs - for multiple VLANS
    AOS-S = interface Trk1 ~ untagged vlan 1 ~ tagged vlan 1,11,21
    AOS-CX = interface lag 1 ~ vlan trunk native 1 ~ vlan trunk allowed 1,11,21



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    If my post was useful, please Accept Solution and Give Kudos.
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    Zak Chalupka
    Principal Engineer - HPE Aruba
    ACDX | ACMP | ACSP | ACCP
    wifizak@hpe.com
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    Ideas expressed here are solely my own and not necessarily that of HPE Aruba.
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