[libvirt] libvirt remote connection failing

hi I was trying to migrate KVM based vM between two machine. when i tried to make connection with destination machine but it is not working for me. i got some error. i tried the following uri qemu://192.168.1.22/ qemu://hostname/ everything is failed. Can any one help me with correct uri to connect with remote machine. i am using python binding of libvirt. KVM-79 libvirt 5.0 Thanks and Regards, - Shan