Max number of slots any machine can have
    @return:
    @rtype: number

def vb_get_max_network_slots():
    '''
    Max number of slots any machine can have
    @return:
    @rtype: number
    '''
    sysprops = vb_get_box().systemProperties
    totals = [
        sysprops.getMaxNetworkAdapters(adapter_type)
        for adapter_type in [
            1,  # PIIX3 A PIIX3 (PCI IDE ISA Xcelerator) chipset.
            2  # ICH9 A ICH9 (I/O Controller Hub) chipset
        ]
        ]
    return sum(totals)