[pve-devel] corosync, multicast problem because of vmbr multicast_snooping enabled

Michael Rasmussen mir at datanom.net
Fri Mar 8 17:31:24 CET 2013

On Fri, 08 Mar 2013 17:20:53 +0100 (CET)
Alexandre DERUMIER <aderumier at odiso.com> wrote:

> Just an idea, can you try to reboot your physicals switchs ?
> Maybe old igmp snooping from bridge was propagated to your switchs...
> (I think that igmp queries are send from linux bridge to all interfaces connected to it)
> But Indeed, that's not an easy update,i'm not sure it's possible to push it by default to next kernel. 
You are certain that it is not your switch which is causing problems?
I have never seen multicast problems in my log files and my switch will
block multicast traffic unless multicast snooping is enabled on the
ports involved or the entire vlan.

Michael Rasmussen

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