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All 505 APs Disappearing except cluster master AP (VC)

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  • 1.  All 505 APs Disappearing except cluster master AP (VC)

    Posted Aug 12, 2022 01:15 AM
    We are try to implement VMC cluster with 40 Aruba 505 IAP

    We already formed VMC cluster using 32 APs

    But when we adding 33rd AP to the cluster, suddenly all other APs are disappearing from the cluster except cluster master AP.

    Then we remove newly added 33rd AP from the network, then All other APs are immediately appear in the cluster.

    Note:
    All 40 IAPs are in same firmware version
    We use DHCP Pool to issue MGMT IPs for the IAPs
    Network/Switch port configuration are all ok.

    What would be the issue?

    Guys Help me to resole this issue

    ------------------------------
    Dhanush
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  • 2.  RE: All 505 APs Disappearing except cluster master AP (VC)

    EMPLOYEE
    Posted Aug 13, 2022 08:07 PM
    so i take it that when you say VMC, you are talking about Aruba Instant VC.
    is the 33rd AP that you are adding factory defaulted?

    ------------------------------
    Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba.
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  • 3.  RE: All 505 APs Disappearing except cluster master AP (VC)

    Posted Aug 15, 2022 01:21 AM
    Yes Aruba Instant VC.

    Yes 33rd AP is in factory defaulted


  • 4.  RE: All 505 APs Disappearing except cluster master AP (VC)

    EMPLOYEE
    Posted Aug 15, 2022 11:07 AM
    Management is happening in the default/native VLAN (as recommended)? Or do you have management VLAN configured in the running cluster to use a tagged VLAN for management (deprecated)?

    Do you have auto-join enabled in the running cluster?

    ------------------------------
    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.
    ------------------------------



  • 5.  RE: All 505 APs Disappearing except cluster master AP (VC)

    Posted Aug 16, 2022 12:59 AM
    Dear Herman,

    We are using Aruba Instant On 1930 Switches

    AP connected port configured As follow
    • Switchport configured as Tagged(Trunk) & Untagged to MGMT VLAN
    • interface 5
      switchport general allowed vlan add 51 tagged
      switchport general allowed vlan add 50 untagged
      switchport general pvid 50  
    VLAN 50 MGMT VLAN
    VLAN 51 USER VLAN


  • 6.  RE: All 505 APs Disappearing except cluster master AP (VC)

    Posted Aug 16, 2022 04:44 AM
    Can we assume that after the new AP is added all the existing APs can still be PINGed via their physical IP and also the new AP can be PINGed ?
    If so, have you tried logging into one of those - non-VC - APs ad have a look there to see what it thinks the cluster looks like ?
    Again can we assume that the VC instance  is using a reserved IP address that can't be used by a physical device ?

    And as a test, when the new AP is added, you could try rebooting the VC and see what happens then.

    Regards, Ewan.,


  • 7.  RE: All 505 APs Disappearing except cluster master AP (VC)

    Posted Aug 16, 2022 05:07 AM
    Hi Ewan,

    • Yes when we added ne AP All the APs are successfully pinged including newly added AP.

    • Also, Newly added AP broadcast SSID of the VC.

    • When we logon to the newly added AP immediately redirect to the VC Master AP IP address. (Once we logon to VC there is appeared only VC Master AP)

    Exact Issue is : When we added 33rd out of 40 Aruba 505 IAP Immediately all APs disappeared from IAP VC excluding VC master AP
                              But once we removed that newly added AP from the network all other 32 IAPs are appeared within the VC



  • 8.  RE: All 505 APs Disappearing except cluster master AP (VC)

    Posted Aug 16, 2022 05:40 AM

    Hi Dhanushka,

     

    From what you are saying the new AP must have joined the cluster as it starts broadcasting the SSIDs that have been configured on the existing VC.

    AND you get re-directed to the VC IP address.

     

     

    Could you factory default the new AP and connect it to the network again, then could you try disconnecting the current VC AP and see what happens.

     

    I am struggling a bit here, as it would appear that you have done everything correctly.

     

     

    Regards,

    Ewan.