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Multicast MAC Addresses in VMware vSwitches

Last Modified: 2016-10-05

We have 5 ESX Servers and vCenter server, both version 5.5. We use standard vSwitches on each ESX server and a bond (with 2 physical ethernet ports) on each server that we use to pass traffic for various VLANs.

I noticed that network packets sent to a multicast destination MAC addresss, are flooded to all the VMs connected to the same vSwitch on the same host.

Is there a way to configure the VMs or the vSwitch, so that packets sent to a particular multicast MAC address will be delivered only to some of the VMs? i.e. to assign a second MAC address on a VM via CLI, apart from the primary MAC assigned to the VM? or maybe we can achieve this by using a distributed virtual switch instead of the standard vSwitch?

We need multicast traffic for various clusters of systems (servers, firewalls, etc), so we can't really avoid it.

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