Temporary solution for me is: PUT /ovirt-engine/api/vms/$serverID/nics/$nicID <nic> <name>ovirtmgmt_25</name> <interface>virtio</interface> <vnic_profile id="$profileID"/> </nic> But this solution is not optional, i need set this on "create VM". Ad this to: POST /ovirt-engine/api/vms <vm> <name>$hostname</name> <description>$description</description> <cluster> <name>$cluster</name> </cluster> <template> <name>$template</name> </template> <cpu> <topology> <cores>1</cores> <sockets>$cpu</sockets> <threads>1</threads> </topology> </cpu> <memory>$ramMB</memory> <memory_policy> <ballooning>true</ballooning> <guaranteed>$ramMBguaranteed</guaranteed> <max>$ramMBmax</max> </memory_policy> </vm> like this, but not workling: <vm> <name>$hostname</name> <description>$description</description> <cluster> <name>$cluster</name> </cluster> <template> <name>$template</name> </template> <nic> <name>ovirtmgmt_25</name> <interface>virtio</interface> <vnic_profile id='$profileID'/> </nic> <cpu> <topology> <cores>1</cores> <sockets>$cpu</sockets> <threads>1</threads> </topology> </cpu> <memory>$ramMB</memory> <memory_policy> <ballooning>true</ballooning> <guaranteed>$ramMBguaranteed</guaranteed> <max>$ramMBmax</max> </memory_policy> </vm>