>>Are you sure about that? How can we test that (looking at the sources it 
>>seems to be enabled)? 

igmp querier in linux bridge is on disabled in newer kernel since the commit I 
have pointed, 
but it's enabled by default is current redhat kernel.

With tcpdump on bridge you should see igmp queries comming from the bridge. 



----- Mail original ----- 

De: "Dietmar Maurer" <diet...@proxmox.com> 
À: "Michael Rasmussen" <m...@datanom.net>, pve-devel@pve.proxmox.com 
Envoyé: Samedi 9 Mars 2013 16:44:43 
Objet: Re: [pve-devel] corosync, multicast problem because of vmbr 
multicast_snooping enabled 

> From what I have read about the IGMP implementation in Linux then igmp 
> quierier is optional and disabled by default since the task of acting as 
> quierier is 
> normally an infrastructure task in which case you expect the network 
> components like switch or router to take care of this. This is especially the 
> case 
> if the nearest switch is a stacked switch in a larger network where you would 
> expect the IGMP snooping to be carried over the trunk port. 

Are you sure about that? How can we test that (looking at the sources it seems 
to be enabled)? 

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