Comment 3 for bug 1395860

When the neutron-contrail charm sets up the vrouter vhost0 interface, it will ifdown (and subsequently ifup) the default route interface. In this case the interface will be the lxc bridge (br0/lxcbr0). I think probably what's happening is the lxc veth interfaces aren't being reattached to the bridge when it's brought back up. 'brctl addif <bridge> <veth>' would probably make the said containers work again.

The charm can probably be worked so it takes a note of bridge interfaces to reattach when it brings the bridge back up. A simple workaround now is to deploy nova-compute/neutron-contrail services first and then lxc ones.