Hi, First of all i would like to understand the exact meaning of the vm_network, from the wiki [1] - "a "Vm network" is implemented over a bridge, otherwise bridgeless", if so, why not calling network property <bridged>true|false</bridged>? from the other hand i understand that this is only current implementation and it may change in a future, anyway adding <vm_network>true|false</vm_network> property to <network> entity in api (as was suggested) doesn't sound good cause vm_network sounds as a network type, but then the question is Management/Migration/Storage/Display should be also network's types? and if single network can be used for the Management|Migration|Storage|Display simultaneously? if the answer is yes, network modelling probably should look like: <network> <bridged>true|false</bridged> <type>Management/Migration/Storage/Display</type> </network> or <network> <bridged>true|false</bridged> <designation>Management|Migration|Storage|Display</designation> </network> your thoughts? [1] http://www.ovirt.org/wiki/Features/Design/Network/Bridgeless_Networks -- Michael Pasternak RedHat, ENG-Virtualization R&D