'Returns the dict representing necessary and meta network fields.'

def _get_network_dict(self, network):

    network_dict = super(VlanManager, self)._get_network_dict(network)
    if self.SHOULD_CREATE_BRIDGE:
        network_dict['should_create_bridge'] = self.SHOULD_CREATE_BRIDGE
    if self.SHOULD_CREATE_VLAN:
        network_dict['should_create_vlan'] = self.SHOULD_CREATE_VLAN
    for k in ['vlan', 'bridge_interface', 'multi_host']:
        if network.get(k):
            network_dict[k] = network[k]
    return network_dict
