I forgot, this is the network of computing nodes: root at nodo-1:/etc/nova# cat /etc/network/interfaces ....... auto br-sviluppoiface br-sviluppo inet manual bridge_stp off bridge_fd 0 bridge_maxwait 0 bridge_ports bond0.632....... thanks again P. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20150311/bbc6244a/attachment.html>