I would turn on the following:
DMO: https://arubanetworking.hpe.com/techdocs/aos/aos10/design/bc-mc/dyn-mc-optimisation/
MTO: https://arubanetworking.hpe.com/techdocs/aos/aos10/design/bc-mc/mcast-tx-optimisation/
Broadcast Filtering: Use this to control what kind of broadcast traffic you want to filter from being broadcast out from the APs. ALL would be preferred, but make sure none of your clients rely on broadcasts over the air.

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Dustin Burns
Lead Mobility Engineer @Worldcom Exchange, Inc.
ACCX 1271| ACMX 509| ACSP | ACDA | MVP Guru 2022-2023
If my post was useful accept solution and/or give kudos
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Original Message:
Sent: Apr 22, 2026 06:55 PM
From: Harbor Billy
Subject: Optimization for Bonjour/MDNS in Bridge mode
I was recently asked to migrate from Tunneled SSIDs to Bridged and combine the subnets for wired and wireless MacOS devices. These devices must use Bonjour to connect to display panels on a separate VLAN. After the change, many APs that have multiple MacOS devices are getting hammered with multicast and broadcast traffic. Is there a recommended way to handle this multicast and broadcast traffic in bridge mode where the bridged VLAN carries potentially 3000 MacOS devices? These are primarily on AP515s connected to Aruba 2930 and 6200 switches. Controlling the traffic from the switches is also a possibility if desirable. Currently in a MM MD network running 8.10.
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-Bill
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