From: Gregory Gombas (ggombas@gmail.com)
Date: Wed Oct 24 2007 - 12:39:30 ART
Good question - is there a multicast enabled router on the segment? Is
MVR enabled? If not the switch will not forward the traffic beyond the
VLAN.
As for within the VLAN itself, I'm curious myself how the switch will
handle the traffic. Since igmp snooping is enabled by default it will
keep track of what ports the receivers are on and only send multicast
to them.
But what if there is no router and no receivers? Will the switch flood
to every port?
On 10/24/07, thomas.rader@freesurf.ch <thomas.rader@freesurf.ch> wrote:
> Does anyone know what happens when a non-multicast routing enabled switch receives a multicast packet ?
>
> I assume it forwards it within the VLAN and drops it at layer 3 boundary (same rules as for broadcast ?)
>
> Thanks, Thomas
>
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