[Linux-cluster] Bringing up new cluster to life...

[Nicolas Ross]

...snip...

> Did you check if multicast is enabled on the network switch and working
> properly? That's generally the first thing people forget to look.

Thanks, that was it !

For some reason on the switch we have in this server room, forward of 
unknown multicast packets was disabled. I had to issue "no ip mcast 
block_unknown", and then the cluster is up !

Thank you very much !