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Two different version controllers use the same SSID with mutli Vlan

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  • 1.  Two different version controllers use the same SSID with mutli Vlan

    Posted Nov 07, 2022 03:39 PM
    There are two controller in my environment, one controller 7220 use 6.5.4.24; one controller 7205 use 8.5.0.5.
    Current situation, both controller have SSID 'WiFi-New' but their vlan is difference.
    AOS6 use vlan 100 200 300, AOS8 use vlan 400 500.
    Now, I want to both controller use the same vlan 100 200 300 400 500 to reduce IP usage.
    But I don't know If I get vlan 100 at AOS6 controller, when I change to AOS8 controller I will get vlan 100 ?


  • 2.  RE: Two different version controllers use the same SSID with mutli Vlan

    Posted Nov 07, 2022 05:11 PM

    C981337,

    Where are you routing these networks?

    Does the same VLAN number share multiple or the same IP space?

    Thanks,

    Brad

     




    Original Message


  • 3.  RE: Two different version controllers use the same SSID with mutli Vlan

    Posted Nov 10, 2022 02:16 AM
    I route these networks at uplink switch.
    All vlan use it's IP space.

    vlan 100 use 172.16.10.2-172.16.10.253
    vlan 200 use 172.16.20.2-172.16.20.253
    vlan 300 use 172.16.30.2-172.16.30.253
    vlan 400 use 172.16.40.2-172.16.40.253
    vlan 500 use 172.16.50.2-172.16.50.253
    Original Message


  • 4.  RE: Two different version controllers use the same SSID with mutli Vlan

    EMPLOYEE
    Posted Nov 10, 2022 11:25 AM
    What is the authentication on the SSID and how do you assign the VLAN to your users?

    If you assign multiple VLANs (VLAN pooling), that is not really recommended. Rather follow the 'single VLAN design' with controllers and control broadcast on the SSIDs. If you make the same VLANs available on both controllers, I would not expect big issues for the clients. However, if the controllers are running different versions, you probably should not deploy the APs in the same space to avoid roaming of clients between those controllers. Inter-controller roaming is something you should avoid as much as possible, but especially when running different versions/AP types (n/ac/ax etc.).

    There probably are reasons for you to deploy it like this, but it would be recommended to work with your Aruba partner and/or Aruba Support to get an optimal design for your situation. It's hard to give proper design guidance in a forum like this.

    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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    Original Message