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

Dietmar Maurer dietmar at proxmox.com
Sat Mar 9 19:33:58 CET 2013


> After making some investigation the above request can be interpreted this way:
> ttl 1: Restricted to the local subnet, no router hops
> 0.0.0.0 (group address): for Host Membership Query

The patch to disable sending multicast queries includes the following hint:

"Unfortunately these packets appear to cause some multicast-aware switches to misbehave, e.g., by disrupting multicast packets to us."

So I think we talk about switch bugs here, not normal behavior.



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