Wireless Access

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Access network design for branch, remote, outdoor and campus locations with Aruba access points, and mobility controllers.
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LMS-IP The Same as Controller-IP?

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  • 1.  LMS-IP The Same as Controller-IP?

    Posted May 24, 2021 08:43 PM
    Hi all, 

    I think this is a simple question - when you define the controller ipv4 address as a specific VLAN interface, does that have to be the same IP as the LMS-IP in the AP system profile? For example, I'm migrating a pair of controllers from a legacy network to a new network and have both IP interfaces on the controllers. Currently, the controller-ip and lms-ip are the legacy ones. If i modify the controller-ip to the new interface and reload the controller, will that impact the APs communication? They're setup as HA right now, not a cluster.

    My goal is to update the controller-ip to the new network interface, followed by building a cluster using the new network and finally clearing the LMS-IP out of the AP system profiles. Eventually phasing out the legacy network all together.


    Michael Haring

    AirHeads MVP 2017, 2019-2021

  • 2.  RE: LMS-IP The Same as Controller-IP?

    Posted May 25, 2021 03:39 AM
    It does not have to be the same IP, the LMS IP is used to inform the AP which is the responsible controller/VLAN for terminating its user traffic. I have seen working configuration where the controller-ip is not defined as the LMS IP in the AP System Profile but instead the LMS/BLMS is a different VLAN interface which has been used as LACP GRE Striping...and it worked :)

    Craig Syme