[Pacemaker] HA Cluster Connected over VPN

[Arnold Krille]

On Tuesday 24 January 2012 23:55:57 Dejan Muhamedagic wrote:
> On Tue, Jan 24, 2012 at 09:51:49PM +0100, Arnold Krille wrote:
> > Using the same subnet for two communication-rings will disturb corosync
> > as it uses multicasts for communication. And that is best done with one
> > multicast- channel per subnet.
> Newer corosync (at least since 1.4.x, perhaps earlier) can do
> udpu instead of multicast. I'd suggest to use that. Ask on the
> corosync-discuss list about how to tune for your network.

Last time I checked, using multicasts implied using udp. There is no 1-to-1 
endpoint-connection in multicast as you would need for tcp.

Maybe you meant the use of broadcasts? That is in fact a thing of the past. a) 
it pollutes your whole network when you use your "public" network as one of 
the communication-rings. b) its not available as soon as you use ipv6.

Have fun,

Arnold
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