If your controllers are running in L3, you may be able to do that with Policy Based Routing (PBR) or more advanced with SD-Branch code on the controllers.
If, as you mention, you core switch is the router for all the VLAN, then you should create something on your core switch as that is where your routing happens.
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Herman Robers
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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:
Sent: Dec 05, 2022 01:21 PM
From: Elhosieny Mohamed
Subject: gateway load balancing
we have to internet lines and we have aruba MM and 2 MC if there is any way to load balance the traffic to use the 2 internet lines ?
my core switch is router for the all vlans