[Libvirt-cim] MigratevirtualSystemToHost reports "unsupported"

Hi, I'm trying to perform a live move of a domU using libvirt-cim, but I'm receiving a CIM_ERR_NOT_SUPPORTED exception. I have attached the request and response xmls. The same operation when tried through virsh command worked. Please let me know if I'm missing something here. Thanks for the help. Regards, Sandeep The following are the details of the 2 machines. Source Xen host: RHEL 5.3 The virsh comamnd that worked: virsh migrate --live Copy_Copy_RHEL52VM1 xen:/// xenmigr://15.154.102.20/ Libvirt and libvirt-cim Versions: [root@RHEL53Xen1 xen]# rpm -qa | grep -i libvirt libvirt-0.3.3-14.el5 libvirt-devel-0.3.3-14.el5 libvirt-cim-0.5.1-4.el5 libvirt-python-0.3.3-14.el5 RHEL Version: [root@RHEL53Xen1 xen]# cat /etc/issue Red Hat Enterprise Linux Server release 5.3 (Tikanga) Kernel \r on an \m Xen Version: [root@RHEL53Xen1 xen]# rpm -qa | grep xen xen-3.0.3-80.el5 xen-libs-3.0.3-80.el5 xen-devel-3.0.3-80.el5 kernel-xen-2.6.18-128.el5 Destination Xen host: RHEL 5.2 Libvirt and libvirt-cim Versions: [root@Rhel52-Xen ~]# rpm -qa | grep libvirt libvirt-cim-0.4-1 libvirt-0.3.3-7.el5 libvirt-python-0.3.3-7.el5 RHEL Version: [root@Rhel52-Xen ~]# cat /etc/issue Red Hat Enterprise Linux Server release 5.2 (Tikanga) Kernel \r on an \m Xen Version: [root@Rhel52-Xen ~]# rpm -qa | grep xen xen-libs-3.0.3-64.el5 xen-3.0.3-64.el5 kernel-xen-devel-2.6.18-92.el5 kernel-xen-2.6.18-92.el5