def init_host(self):

        LOG.debug('Setup network on host %s', self.host)
        ctxt = context.get_admin_context()
        networks = objects.NetworkList.get_by_host(ctxt, self.host)

        self.driver.iptables_manager.defer_apply_on()

        self.l3driver.initialize(fixed_range=False, networks=networks)
        NetworkManager.init_host(self)
        self.init_host_floating_ips()

        self.driver.iptables_manager.defer_apply_off()
Do any initialization that needs to be run if this is a
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/network/manager.py/VlanManager.init_host