I have some strange issues regarding openvswitch in PVE 3.2. I did clean install of Debian stable, add PVE 3.2 repositories and install PVE 3.2 using instructions on wiki - http://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_Wheezy
at the end I've installed openvswitch (apt-get install...