Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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DHCP Relay - controller capacity

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  • 1.  DHCP Relay - controller capacity

    Posted Oct 29, 2013 10:36 AM

    Hello,

     

    We are attempting to isolate our user device MACs from our core network.  To faciliate this, we would like to add a layer 3 interface to every user data network and perform DHCP Relay at that point.  My question is:  what is the controller's capacity to handle DHCP Relay?

    Our configuration currently looks like:

     

    2 x 7240s running in master / master via VRRP, ArubaOS 6.3.0.2

    12,000 unique concurrent devices

    Approximately 500,000 DHCP Requests / day

     

    Thanks for any insight,

     

    John

     



  • 2.  RE: DHCP Relay - controller capacity
    Best Answer

    Posted Oct 29, 2013 05:15 PM

    I doubt engineering has tested this. If they have numbers it would be real world at a customer site. 

     

    I do however have a customer running 7240's with 8-9K unique devices and dhcp relay running on each van without issue. I would start with a baseline of your controllers then add a few DHCP helpers vlans at a time and keep track of the load/processes. 

     

     


    #7240


  • 3.  RE: DHCP Relay - controller capacity

    Posted Oct 29, 2013 08:27 PM

    David,

     

    Thanks for the reply with your experience.  The sizing you've seen lets me know the controllers shouldn't be an issue.

     

    Regards,

     

    John