All routes to containers will be through this bridge and containers can communicate with each other even without these routes.
=== Making a veth-device persistent ===
According to http://bugzilla.openvz.org/show_bug.cgi?id=301 , a bug that stopped the veth device persistent was "Obsoleted now when --veth_add/--veth_del are introduced"
Like the above example, here it is how to add the veth device to a bridge in a persistent way.
include a 'vznetaddbr' script, which makes use of the ''bridge'' parameter of the --netif_add switch.
Just create /etc/vz/vznet.conf containing the following.