def test_mtu_update(self):
# The test case needs access to devices in nested namespaces. ip_lib
# doesn't support it, and it's probably unsafe to touch the library for
# testing matters.
# TODO(jlibosva) revisit when ip_lib supports nested namespaces
if self.environment.hosts[0].dhcp_agent.namespace is not None:
self.skipTest("ip_lib doesn't support nested namespaces")
self.vm.block_until_dhcp_config_done()
namespace = dhcp_agent._get_namespace_name(
self.network['id'],
suffix=self.environment.hosts[0].dhcp_agent.get_namespace_suffix())
self.assert_namespace_exists(namespace)
ip = ip_lib.IPWrapper(namespace)
devices = ip.get_devices()
self.assertEqual(1, len(devices))
dhcp_dev = devices[0]
mtu = dhcp_dev.link.mtu
self.assertEqual(1450, mtu)
mtu -= 1
self.safe_client.update_network(self.network['id'], mtu=mtu)
common_utils.wait_until_true(lambda: dhcp_dev.link.mtu == mtu)
def test_mtu_update(self):
# The test case needs access to devices in nested namespaces. ip_lib
# doesn't support it, and it's probably unsafe to touch the library for
# testing matters.
# TODO(jlibosva) revisit when ip_lib supports nested namespaces
if self.environment.hosts[0].dhcp_agent.namespace is not None:
self.skipTest("ip_lib doesn't support nested namespaces")
self.vm.block_until_dhcp_config_done()
namespace = dhcp_agent._get_namespace_name(
self.network['id'],
suffix=self.environment.hosts[0].dhcp_agent.get_namespace_suffix())
ip = ip_lib.IPWrapper(namespace)
devices = ip.get_devices()
self.assertEqual(1, len(devices))
dhcp_dev = devices[0]
mtu = dhcp_dev.link.mtu
self.assertEqual(1450, mtu)
mtu -= 1
self.safe_client.update_network(self.network['id'], mtu=mtu)
common_utils.wait_until_true(lambda: dhcp_dev.link.mtu == mtu)
