[libvirt-users] migration error virsh 0.10

Hello everyone: I am using CentOS 6.3 and the libvirt version is 0.10,when I'm trying to migration a vm between hosts,issue command:virsh --connect qemu:///system migrate --live one-11 qemu+ssh://192.168.0.111/system,an error reported: Command "virsh --connect qemu:///system migrate --live one-11 qemu+ssh://192.168.0.111/system" failed: error: XML error: invalid security type Any help will be appreciated!