[libvirt] A problem in live migration

In virsh, I use command "migrate --live 1 qemu+ssh://10.1.10.60/system" to do live migration,but it shows error "internal error hostname on destination resolved to localhost, but migration requires an FQDN". I don't know why, and who do live migration successfully can help me. Thank you! My source and destination system are all fedora-13-x86_64, and the version of libvirt is 0.8.2